ALPS Seamless Steel Pipes for Various Applications

Seamless Steel Pipe: High-Performance Solution for Diverse Industrial Applications

Product Overview
Our seamless steel pipes are engineered to deliver exceptional strength, durability, and reliability across a wide range of industries. Manufactured using advanced production techniques, these pipes feature a uniform structure free from welds, ensuring superior pressure resistance, corrosion resilience, and long-term performance. Ideal for high-stress environments, they are trusted in sectors such as oil & gas, petrochemicals, construction, automotive, and power generation.

Key Features

• Seamless Construction: No welded joints for enhanced structural integrity and leak-proof performance under extreme conditions.
• High Precision: Tight dimensional tolerances ensure compatibility with complex piping systems.
• Corrosion Resistance: Available in carbon steel, alloy steel, and stainless steel grades, with optional anti-corrosion coatings (e.g., epoxy, FBE, 3PE) for extended service life.
• Temperature & Pressure Tolerance: Designed to withstand high-temperature and high-pressure applications, including steam, thermal fluids, and cryogenic environments.
• Customizable Specifications: Tailored dimensions, wall thicknesses, and end finishes (beveled, threaded, plain) to meet project-specific requirements.

Production Standards & Certifications

• Global Compliance: Manufactured in accordance with international standards:
  • ASTM: A53, A106, A333, A335, etc.
  • DIN: EN 10216, EN 10297, etc.
  • ISO: ISO 9329, ISO 3183, etc.
  • GB/T: GB/T 8162, GB/T 8163, GB/T 3087, etc.
• Certifications: ISO 9001 (Quality Management), ISO 14001 (Environmental Management), API 5L (for line pipes), PED (EU Pressure Equipment Directive), and other industry-specific approvals.

Applications

• Oil & Gas: Transport pipelines, drilling equipment, offshore platforms.
• Petrochemicals: Process piping, heat exchangers, reactors.
• Construction: Structural supports, scaffolding, bridge components.
• Automotive: Exhaust systems, hydraulic cylinders, chassis components.
• Power Generation: Boiler tubes, steam pipelines, nuclear plant components.
• Mechanical Engineering: Machinery parts, pressure vessels, hydraulic systems.

Technical Specifications

• Outer Diameter (OD): 10.3 mm – 914.4 mm (1/8″ – 36″)
• Wall Thickness: 1.5 mm – 50 mm (SCH 5S – XXH)
• Length: Random (5–12 m), Fixed (cut-to-length), or SRL/DRL (Single Random Length/Double Random Length).
• Surface Finish: Black painting, varnished, galvanized, or polished.
• End Types: Plain end, beveled end, threaded end, or socket-welded.

Why Choose Our Seamless Steel Pipes?

• Quality Assurance: Rigorous testing (hydrostatic, ultrasonic, eddy current) ensures defect-free products.
• Global Reach: Export-ready packaging and documentation for seamless international logistics.
• Cost-Efficiency: Reduced maintenance costs and longer service life compared to welded alternatives.
• Custom Solutions: Flexible production capabilities to accommodate unique project demands.

Packaging & Delivery

• Packaging: Bundled with steel strips, wrapped in waterproof material, or loaded into containers per customer request.
• Delivery: Prompt shipping via sea, air, or land transport, with FOB, CIF, or EXW terms available.

Contact Us
Partner with us for premium seamless steel pipes that meet the highest industry standards. Our team is ready to provide technical support, competitive pricing, and fast delivery for your next project.

 

Production Standard for Seamless Steel Pipe

NO.	STANDARD	DESCRIPTION
1	ASEM SB729	Seamless UNS N08020, UNS N08026, UNS N08024 Nickel Alloy Nominal Pipe and Tube
2	ASME SA-106M	Specification For Seamless Carbon Steel Pipefor High-Temperature Service
3	ASME SA-179/SA-179M	Seamless Cold-Drawn Low-Carbon Steel Heat-Exchanger and Condenser Tubes
4	ASME SA192M	Seamless Carbon Steel Boil Pipe used for High Pressure
5	ASME SA209	Seamless Carbon Molybdenum Alloy Pipe used for Boiler and Superheater
6	ASME SA-210M	Seamless Medium Carbon Steel Tube & Pipe used for Boiler and Superheater
7	ASME SA-213M	Seamless Ferrite and Austenite Alloy Steel Pipe used for Boiler, Superheater and Heat Exchanger
8	ASME SA269	Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing for General Service
9	ASME SA312	Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes
10	ASME SA333	Seamless and Welding Nominal Pipe used for Low Temperature
11	ASME SA-335M	Seamless Ferrite Alloy Nominal Steel Pipe applied for High Temperature
12	ASME SA-556M	Seamless cold drawn carbon steel tube for feed water heater
13	ASME SA688	Standard Specification for Seamless and Welded Austenitic Stainless Steel Feedwater Heater Tubes
14	ASME SA789	Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service
15	ASME SA790	Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe
16	ASME SB163	Standard Specification for Seamless Nickel and Nickel Alloy Condenser and Heat-Exchanger Tubes
17	ASME SB167	Standard Specification for Nickel-Chromium-Iron Alloys and Nickel-Chromium-Cobalt-Molybdenum Alloys Seamless Nominal Pipe and Tube
18	ASME SB622	Seamless Nickel and Nickel Cobalt Alloy Nominal Pipe and Tube
19	ASME SB668	UNS N08028 Seamless Pipes
20	ASTM A 209M	Seamless Carbon Molybdenum Alloy Pipe used for Boiler and Superheater
21	ASTM A106/A106M	Standard Specification for Seamless Carbon Steel Pipe for High-Temperature Service
22	ASTM A179M	Seamless Cold-Drawn Low-Carbon Steel Heat-Exchanger and Condenser Tubes
23	ASTM A192M	Seamless Carbon Steel Boil Pipe used for High Pressure
24	ASTM A210M	Standard Specification for Seamless Medium-CarbonSteel Boiler and Superheater Tubes
25	ASTM A213M	Seamless Ferrite and Austenite Alloy Steel Pipe used for Boiler, Superheater and Heat Exchanger
26	ASTM A252	Standard Specification for Welded and Seamless Steel Pipe Piles
27	ASTM A268	Standard Specification for Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service
28	ASTM A269	Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing for General Service
29	ASTM A312	Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes
30	ASTM A334	Seamless and Welded Carbon and Alloy-Steel Tubes for Low-Temperature Service
31	ASTM A335	Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service
32	ASTM A376	Standard Specification for Seamless Austenitic Steel Pipe for High-Temperature Central-Station Service
33	ASTM A500	Standard Specification for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes
34	ASTM A501	Standard Specification for Hot-Formed Welded and Seamless Carbon Steel Structural Tubing
35	ASTM A519	Seamless carbon steel & alloy mechanical tubing
36	ASTM A53	Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless
37	ASTM A688	Standard Specification for Seamless and Welded Austenitic Stainless Steel Feedwater Heater Tubes
38	ASTM A789	Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service
39	ASTM A790	Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe
40	ASTM A795/A795M-21	Standard Specification for Black and Hot-Dipped Zinc-Coated (Galvanized) Welded and Seamless Steel Pipe for Fire Protection Use
41	ASTM B163	Standard Specification for Seamless Nickel and Nickel Alloy Condenser and Heat-Exchanger Tubes
42	ASTM B167	Standard Specification for Nickel-Chromium-Iron Alloys and Nickel-Chromium-Cobalt-Molybdenum Alloys Seamless Nominal Pipe and Tube
43	ASTM B677	Standard Specification for Nickel-Iron-Chromium-Molybdenum and Iron-Nickel-Chromium-Molybdenum-Copper Seamless Pipe and Tube
44	ASTM B690	Standard Specification for Iron-Nickel-Chromium-Molybdenum Alloy Seamless Pipe and Tube
45	BS 2363	Seamless and welded steel tubes for automobiles,mechanicaland general engineering prupose
46	BS EN 10297-1	Seamless circular steel tubes for mechanical and general engineering purposes. Technical delivery conditions-Non-alloy and alloy steel tubes
47	BS EN ISO 11120	Gas cylinders – Refillable seamless steel tubes for compressed gas transport, of water capacity between 150L and 3000L – Design construction and testing
48	DIN 1629	Seamless Circular Tubes Of Non Alloys Steels With Special Quality Requirements
49	DIN 17175	Seamless Steel Pipe made by Heat-resistant Steel
50	DIN 2391	Seamless precision steel tubes
51	EN 10216-1	Seamless Steel Pipe for Pressure purposes
52	EN 10216-2	Seamless steel tubes for pressure purposes, Non.alloy and alloy steel tubes with specified elevated temperature properies
53	EN 10216-3	Seamless steel tubes for pressure purposes – Technical delivery conditions
54	EN 10216-4	Seamless Steel Pipe for Pressure purposes
55	EN 10305-1	Seamless cold drawn tubes
56	EN 10305-4	Seamless cold drawn tubes for hydraulic and pneumatic power systems
57	GB/T 13296-2023	Seamless stainless steel tubes for boiler and heat exchanger
58	GB/T 14975-2012	Seamless stainless steel tubes for structure
59	GB/T 14975-2025	Seamless stainless steel tubes for structure
60	GB/T 14976-2025	Seamless stainless steel pipes for fluid transport
61	GB/T 17396-2022	Seamless hot-rolled steel tubes for hydraulic pillar service
62	GB/T 18248-2021	Seamless steel tubes for gas cylinder
63	GB/T 18984-2016	Seamless steel tubes for low-temperature-service piping
64	GB/T 20409-2018	Seamless multi-rifled steel tubes for high-pressure boiler
65	GB/T 21833.1-2020	Seamless austenitic-ferritic (duplex) stainless steel tubes and pipes—Part 1: Tubes for heat exchanger
66	GB/T 21833.2-2020	Seamless austenitic-ferritic (duplex) stainless steel tubes and pipes—Part 2: Pipes for fluid service
67	GB/T 21833.3-2024	Seamless austenitic-ferritic (duplex) stainless steel tubes and pipes—Part 3:Pipes for oil and gas transmission
68	GB/T 24512.1-2009	Seamless steel tubes and pipes for nuclear power plant – Part 1: Carbon steel seamless tubes and pipes
69	GB/T 24512.2-2009	Seamless steel tubes and pipes for nuclear power plant – Part 2: Alloy steel seamless tubes and pipes
70	GB/T 24512.3-2014	Seamless steel tubes and pipes for nuclear power plant ― Part 3：Seamless stainless steel tubes and pipes
71	GB/T 24591-2019	Seamless steel tubes for high pressure feedwater heater
72	GB/T 25822-2010	Shaped and round seamless steel tubes for axle
73	GB/T 28883-2012	Composite seamless steel tubes for pressure
74	GB/T 28884-2024	Seamless steel tubes for large capacity gas cylinder
75	GB/T 30070-2013	Seamless alloy steel pipes for seawater service
76	GB/T 30073-2013	Seamless austenitic stainless steel tubes for heat exchangers in nuclear power plant
77	GB/T 30584-2014	Seamless steel pipes for crane jib
78	GB/T 30829-2014	Shaped and round seamless steel tubes for oil derrick
79	GB/T 3087-2022	Seamless steel tubes and pipes for low and medium pressure boiler
80	GB/T 3089-2020	Seamless ultra-thin wall stainless steel tubes
81	GB/T 3090-2020	Seamless small diameter stainless steel tubes
82	GB/T 3093-2021	High-pressure seamless steel tubes for diesel engine
83	GB/T 31928-2015	Seamless stainless steel tubes and pipes for ship
84	GB/T 32957-2016	Cold-drawn or cold-rolled precision inside diameter seamless steel tubes for hydraulic and pneumatic system service
85	GB/T 33167-2016	Seamless stainless steel tubes and pipes for industrial furnace of petroleum and chemical hydrogenation unit
86	GB/T 33821-2017	Seamless steel tubes for automobile stabilizer bar
87	GB/T 33966-2017	Seamless abrasion-resistant steel pipes for mortar service
88	GB/T 34105-2017	Seamless steel tubes for ocean engineering structures
89	GB/T 34107-2017	Seamless precision stainless steel pipes for rail transit vehicle braking system
90	GB/T 34109-2017	Seamless steel tubes for drill rod of rotary digging machine
91	GB/T 34201-2017	Seamless hot-rolled square and rectangular steel tubes for structure
92	GB/T 3639	Seamless cold-drawn or cold-rolled steel tubes for precision applications
93	GB/T 3639-2021	Seamless cold-drawn or cold-rolled steel tubes for precision applications
94	GB/T 37578-2019	Urea grade ultra-low carbon austenitic seamless stainless steel tubes and pipes
95	GB/T 38810-2020	Seamless stainless steel pipes for liquefied natural gas
96	GB/T 40297-2021	Seamless austenitic stainless steel pipes for high pressure hydrogenation unit
97	GB/T 40317-2021	Seamless stainless steel pipes for oxygen pipeline
98	GB/T 41354-2022	Hydraulic fluid power—Plain-end,seamless and welded precision steel tubes—Dimensions and nominal working pressures
99	GB/T 43105-2023	Seamless steel tubes for hydroformed part
100	GB/T 43107-2023	Seamless stainless steel tubes for instrumentation pressure connecting for nuclear power plants
101	GB/T 43898-2024	Seamless precision steel tubes for engineering machinery hydraulic cylinder
102	GB/T 45781-2025	Seamless steel tubes for mechanical structures
103	GB/T 5310-2023	Seamless steel tubes and pipes for high pressure boiler
104	GB/T 5312-2025	Seamless steel tubes and pipes for ship
105	GB/T 5312-2025	Seamless steel tubes and pipes for ship
106	GB/T 6479-2013	Seamless steel tubes for high-pressure chemical fertilizer equipments
107	GB/T 8162	Seamless steel tubes for structural purposes
108	GB/T 8163-2018	Seamless steel pipes for liquid service
109	GB/T 9808-2023	Seamless steel tubes for drilling
110	GB/T 9948-2013	Seamless steel tubes for petroleum cracking
111	GB/T 9948-2025	Seamless steel tubes and pipes for petrochemical and chemical facilities
112	ISO 10763	Hydraulic fluid power — Plain-end, seamless and welded precision steel tubes — Dimensions and nominal working pressures
113	ISO 8535	Diesel engines-Steel tubes for high-pressure fuel injection pipes – Part 1: Requirements for seamless cold-drawn single wall tubes
114	JIS G3429	Seamless steel pipe for high pressure gas container
115	JlS G3465	Seamless steel pipe for drilling
116	JIS G3429	Seamless Steel Tubes for High Pressure Gas Cylinder
117	JIS G3465	Seamless Steel Tubes for Drilling
118	JIS G4805	Seamless Pipe High Carbon Chromium Bearing Steel Pipe
119	DIN 2462	Seamless tubes of stainless steel
120	DIN 17456	General Purpose Seamless Stainless Steel Tubes
121	DIN 17458	Seamless Circular of Austenitic Stainless Steel Tube
122	EN 10216-5	Stainless Steel Seamless Tubes for pressure purposes

 

ALL PRODUCTION STANDARD IN ALPS

NO.	STANDARD	DESCRIPTION
1	API 5CT	Specification for Casing and Tubing
2	API 5L	Specification for Line Pipe
3	API SPEC 5DP	Specification for Drill Pipe
4	ASEM SB729	Seamless UNS N08020, UNS N08026, UNS N08024 Nickel Alloy Nominal Pipe and Tube
5	ASME B16.9	Factory-Made Wrought Buttwelding Fittings
6	ASME SA-106M	Specification For Seamless Carbon Steel Pipefor High-Temperature Service
7	ASME SA-179/SA-179M	Seamless Cold-Drawn Low-Carbon Steel Heat-Exchanger and Condenser Tubes
8	ASME SA192M	Seamless Carbon Steel Boil Pipe used for High Pressure
9	ASME SA209	Seamless Carbon Molybdenum Alloy Pipe used for Boiler and Superheater
10	ASME SA-210M	Seamless Medium Carbon Steel Tube & Pipe used for Boiler and Superheater
11	ASME SA-213M	Seamless Ferrite and Austenite Alloy Steel Pipe used for Boiler, Superheater and Heat Exchanger
12	ASME SA249	Standard Specification for Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes
13	ASME SA269	Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing for General Service
14	ASME SA312	Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes
15	ASME SA333	Seamless and Welding Nominal Pipe used for Low Temperature
16	ASME SA-335M	Seamless Ferrite Alloy Nominal Steel Pipe applied for High Temperature
17	ASME SA358	Standard Specification for Electric-Fusion-Welded Austenitic Chromium-Nickel Stainless Steel Pipe for High-Temperature Service and General Applications
18	ASME SA-556M	Seamless cold drawn carbon steel tube for feed water heater
19	ASME SA688	Standard Specification for Seamless and Welded Austenitic Stainless Steel Feedwater Heater Tubes
20	ASME SA789	Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service
21	ASME SA790	Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe
22	ASME SA928	Standard Specification for Ferritic/Austenitic (Duplex) Stainless Steel Pipe Electric Fusion Welded with Addition of Filler Metal
23	ASME SB163	Standard Specification for Seamless Nickel and Nickel Alloy Condenser and Heat-Exchanger Tubes
24	ASME SB165	Standard Specification for Nickel-Copper Alloy Nominal Pipe and Tube
25	ASME SB167	Standard Specification for Nickel-Chromium-Iron Alloys and Nickel-Chromium-Cobalt-Molybdenum Alloys Seamless Nominal Pipe and Tube
26	ASME SB407	Nickel-Iron-Chromium Alloy Nominal Pipe and Tube
27	ASME SB423	Standard Specification for Nickel-Iron-Chromium-Molybdenum-Copper Alloy Nominal Pipe and Tube
28	ASME SB444	Standard specification for Nickel-Chromium-Molybdenum-Columbium Alloy and Nickel-Chromium-Molybdenum-Silicon Alloy Nominal Pipe and Tube
29	ASME SB622	Seamless Nickel and Nickel Cobalt Alloy Nominal Pipe and Tube
30	ASME SB668	UNS N08028 Seamless Pipes
31	ASME SB690	Specification for Iron-Nickel-Chromium-Molybdenum Alloys Nominal Pipe and Tube
32	ASTM A 209M	Seamless Carbon Molybdenum Alloy Pipe used for Boiler and Superheater
33	ASTM A106/A106M	Standard Specification for Seamless Carbon Steel Pipe for High-Temperature Service
34	ASTM A153	Standard Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware
35	ASTM A178	Electric-Resistance-Welded Carbon Steel and Carbon·Manganese Steel Boiler and Superheater Tubes
36	ASTM A179M	Seamless Cold-Drawn Low-Carbon Steel Heat-Exchanger and Condenser Tubes
37	ASTM A192M	Seamless Carbon Steel Boil Pipe used for High Pressure
38	ASTM A210M	Standard Specification for Seamless Medium-CarbonSteel Boiler and Superheater Tubes
39	ASTM A213M	Seamless Ferrite and Austenite Alloy Steel Pipe used for Boiler, Superheater and Heat Exchanger
40	ASTM A214	Electric-Resistance-Welded Carbon Steel Heat-Exchanger and Condenser Tubes
41	ASTM A249	Standard Specification for Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes
42	ASTM A252	Standard Specification for Welded and Seamless Steel Pipe Piles
43	ASTM A268	Standard Specification for Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service
44	ASTM A269	Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing for General Service
45	ASTM A312	Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes
46	ASTM A334	Seamless and Welded Carbon and Alloy-Steel Tubes for Low-Temperature Service
47	ASTM A335	Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service
48	ASTM A358	Standard Specification for Electric-Fusion-Welded Austenitic Chromium-Nickel Stainless Steel Pipe for High-Temperature Service and General Applications
49	ASTM A372	Standard Specification for Carbon and Alloy Steel Forgings for Thin-Walled Pressure Vessels
50	ASTM A376	Standard Specification for Seamless Austenitic Steel Pipe for High-Temperature Central-Station Service
51	ASTM A403	Standard Specification for Wrought AusteniticStainless Steel Piping Fittings
52	ASTM A500	Standard Specification for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes
53	ASTM A501	Standard Specification for Hot-Formed Welded and Seamless Carbon Steel Structural Tubing
54	ASTM A513	Standard Specification for Electric-Resistance-Welded Carbon and Alloy Steel Mechanical Tubing
55	ASTM A517	Standard Specification for Pressure Vessel Plates, Alloy Steel, High-Strength, Quenched and Tempered
56	ASTM A519	Seamless carbon steel & alloy mechanical tubing
57	ASTM A53	Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless
58	ASTM A688	Standard Specification for Seamless and Welded Austenitic Stainless Steel Feedwater Heater Tubes
59	ASTM A700	Standard Guide for Packaging, Marking, and Loading Methods for Steel Products for Shipment
60	ASTM A789	Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service
61	ASTM A790	Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe
62	ASTM A795/A795M-21	Standard Specification for Black and Hot-Dipped Zinc-Coated (Galvanized) Welded and Seamless Steel Pipe for Fire Protection Use
63	ASTM A928	Standard Specification for Ferritic/Austenitic (Duplex) Stainless Steel Pipe Electric Fusion Welded with Addition of Filler Metal
64	ASTM B163	Standard Specification for Seamless Nickel and Nickel Alloy Condenser and Heat-Exchanger Tubes
65	ASTM B165	Standard Specification for Nickel-Copper Alloy Nominal Pipe and Tube
66	ASTM B167	Standard Specification for Nickel-Chromium-Iron Alloys and Nickel-Chromium-Cobalt-Molybdenum Alloys Seamless Nominal Pipe and Tube
67	ASTM B423	Standard Specification for Nickel-Iron-Chromium-Molybdenum-Copper Alloy Nominal Pipe and Tube
68	ASTM B673	Standard Specification for Nickel-Iron-Chromium-Molybdenum-Nitrogen Alloy, Nickel-Iron-Chromium-Molybdenum and Iron-Nickel-Chromium-Molybdenum-Copper Welded Pipe
69	ASTM B675	Standard Specification for Iron-Nickel-Chromium-Molybdenum Alloy Welded Pipe
70	ASTM B677	Standard Specification for Nickel-Iron-Chromium-Molybdenum and Iron-Nickel-Chromium-Molybdenum-Copper Seamless Pipe and Tube
71	ASTM B690	Standard Specification for Iron-Nickel-Chromium-Molybdenum Alloy Seamless Pipe and Tube
72	ASTM B705	Standard Specification for Nickel-Alloy Welded Pipe
73	ASTM F1545	Standard Specification for Plastic-Lined Ferrous Metal Pipe, Fittings, and Flanges
74	BS 1387	Steel Tubes and Tubulars Suitable for Sercwing to BS 21 Pipe Theads
75	BS 2363	Seamless and welded steel tubes for automobiles,mechanicaland general engineering prupose
76	BS EN 10297-1	Seamless circular steel tubes for mechanical and general engineering purposes. Technical delivery conditions-Non-alloy and alloy steel tubes
77	BS EN 10305-1	Technical specification of cold processing precise pipe
78	BS EN ISO 11120	Gas cylinders – Refillable seamless steel tubes for compressed gas transport, of water capacity between 150L and 3000L – Design construction and testing
79	CSA Z245.1	Steel Pipe
80	DIN 1629	Seamless Circular Tubes Of Non Alloys Steels With Special Quality Requirements
81	DIN 17175	Seamless Steel Pipe made by Heat-resistant Steel
82	DIN 2391	Seamless precision steel tubes
83	DIN 2393	Welded precision steel tubes
84	DIN 2394	Welded and Sized Precision Steel Tubes
85	DIN 30670	Polyethylene coatings on steel pipes and fittings – Requirements and testing
86	DIN 30678	Polyethylen coatings of steel pipes and fittings
87	DIN EN 10305	Steel tubes for precision applications–Technical delivery conditions
88	EN 10216-1	Seamless Steel Pipe for Pressure purposes
89	EN 10216-2	Seamless steel tubes for pressure purposes, Non.alloy and alloy steel tubes with specified elevated temperature properies
90	EN 10216-3	Seamless steel tubes for pressure purposes – Technical delivery conditions
91	EN 10216-4	Seamless Steel Pipe for Pressure purposes
92	EN 10217	Welded steel tubes for pressure purposes — Technical delivery conditions
93	EN 10219	Cold formed welded steel structural hollow sections
94	EN 10253	Butt-welding pipe fittings
95	EN 10255	Non-alloy steel tubes suitable for welding and threading — Technical delivery conditions
96	EN 10305-1	Seamless cold drawn tubes
97	EN 10305-2	Welded cold drawn tubes
98	EN 10305-3	Steel tubes for precision applications
99	EN 10305-4	Seamless cold drawn tubes for hydraulic and pneumatic power systems
100	EN 10305-5	Welded and cold sized square and retangular tubes
101	EN 10305-6	Welded cold drawn tubes for hydraulic and pneumatic power systems
102	EN 61386-21:2004	Conduit systems for cable management
103	GB/T 12770-2012	Welded stainless steel tubes for mechanical structures
104	GB/T 12770-2025	Welded stainless steel tubes for mechanical structures
105	GB/T 12771-2019	Welded stainless steel pipes for fluid transport
106	GB/T 13296-2023	Seamless stainless steel tubes for boiler and heat exchanger
107	GB/T 13793-2016	Steel pipes with a longitudinal electric（resistance）weld
108	GB/T 14291-2016	Welded steel pipe for ore pulp transportation
109	GB/T 14975-2012	Seamless stainless steel tubes for structure
110	GB/T 14975-2025	Seamless stainless steel tubes for structure
111	GB/T 14976-2025	Seamless stainless steel pipes for fluid transport
112	GB/T 15831-2023	Steel tube scaffold coupler
113	GB/T 17193	Extra-heavy duty rigid steel conduits for electrical installations
114	GB/T 17396-2022	Seamless hot-rolled steel tubes for hydraulic pillar service
115	GB/T 17616-2013	Unified numbering system for designation of iron,steel and alloy
116	GB/T 18248-2021	Seamless steel tubes for gas cylinder
117	GB/T 18984-2016	Seamless steel tubes for low-temperature-service piping
118	GB/T 19228.2-2011	Stainless steel press-fitting assemblies – Part 2：Light gauge stainless steel tubes for press-fittings
119	GB/T 19830-2023	Petroleum and natural gas industries—Steel pipes for use as casing or tubing for wells
120	GB/T 20409-2018	Seamless multi-rifled steel tubes for high-pressure boiler
121	GB/T 2102-2022	Acceptance, packaging, marking and quality certification for steel tubular products
122	GB/T 21832.1-2018	Welded austenitic-ferritic (duplex) stainless steel tubes and pipes—Part 1:Tubes for heat exchanger
123	GB/T 21832.2-2018	Welded austenitic-ferritic (duplex) stainless steel tubes and pipes—Part 2:Pipes for fluid transport
124	GB/T 21832.3-2024	Welded austenitic-ferritic(duplex) stainless steel tubes and pipes—Part 3: Pipes for oil and gas transmission
125	GB/T 21833.1-2020	Seamless austenitic-ferritic (duplex) stainless steel tubes and pipes—Part 1: Tubes for heat exchanger
126	GB/T 21833.2-2020	Seamless austenitic-ferritic (duplex) stainless steel tubes and pipes—Part 2: Pipes for fluid service
127	GB/T 21833.3-2024	Seamless austenitic-ferritic (duplex) stainless steel tubes and pipes—Part 3:Pipes for oil and gas transmission
128	GB/T 24187-2023	Cold-drawn precision single welded steel tubes
129	GB/T 24512.1-2009	Seamless steel tubes and pipes for nuclear power plant – Part 1: Carbon steel seamless tubes and pipes
130	GB/T 24512.2-2009	Seamless steel tubes and pipes for nuclear power plant – Part 2: Alloy steel seamless tubes and pipes
131	GB/T 24512.3-2014	Seamless steel tubes and pipes for nuclear power plant ― Part 3：Seamless stainless steel tubes and pipes
132	GB/T 24591-2019	Seamless steel tubes for high pressure feedwater heater
133	GB/T 24592-2009	High pressure alloy steel tubes for polyethylene service
134	GB/T 24593-2018	Welded austenitic stainless steel tubes for boiler and heat exchanger
135	GB/T 24593-2018	Welded austenitic stainless steel tubes for boiler and heat exchanger
136	GB/T 25020.2-2016	Steel pole for overhead contact system of electrified railways—Part 2：Square steel tube pole
137	GB/T 25822-2010	Shaped and round seamless steel tubes for axle
138	GB/T 26500-2011	General technical specification for pipes and fittings lined with fluoroplastics
139	GB/T 26500-2025	Structure, main size and basic parameters of steel pipes and fitting lined with plastic
140	GB/T 28413-2012	Welded carbon steel tubes for boilers and heat exchangers
141	GB/T 28883-2012	Composite seamless steel tubes for pressure
142	GB/T 28884-2024	Seamless steel tubes for large capacity gas cylinder
143	GB/T 28897-2021	Steel-plastic compound pipes and fittings for fluid service
144	GB/T 30062-2013	Terminology of steel pipes and tubes
145	GB/T 30063-2013	Longitudinal submerged arc welded steel tubes for structural purpose
146	GB/T 30065-2013	Welded ferritic stainless steel tubes for feedwater heater
147	GB/T 30066-2013	Welded ferritic stainless steel tubes for heat-exchanger and condenser
148	GB/T 30070-2013	Seamless alloy steel pipes for seawater service
149	GB/T 30073-2013	Seamless austenitic stainless steel tubes for heat exchangers in nuclear power plant
150	GB/T 30584-2014	Seamless steel pipes for crane jib
151	GB/T 30813-2014	Welded austenitic stainless steel tubes and pipes for nuclear power plant
152	GB/T 30829-2014	Shaped and round seamless steel tubes for oil derrick
153	GB/T 3087-2022	Seamless steel tubes and pipes for low and medium pressure boiler
154	GB/T 3089-2020	Seamless ultra-thin wall stainless steel tubes
155	GB/T 3090-2020	Seamless small diameter stainless steel tubes
156	GB/T 3091—2025	Welded steel pipes for low pressure fluid delivery
157	GB/T 3093-2021	High-pressure seamless steel tubes for diesel engine
158	GB/T 3094-2012	Cold drawn shaped steel tubes
159	GB/T 31315-2014	Cold drawn or cold rolled precision weld steel tubes for mechanical structures
160	GB/T 31928-2015	Seamless stainless steel tubes and pipes for ship
161	GB/T 31929-2015	Welded stainless steel pipes for ship
162	GB/T 31937-2015	SAWL steel pipe for pipeline of coal slurry
163	GB/T 31940-2025	Bi-metal composite steel pipes for fluid transportation
164	GB/T 31941-2015	Non-nuclear safety class welded carbon steel and alloy steel pipes for nuclear power plant
165	GB/T 32569-2016	Welded stainless steel tubes for seawater desalination plants
166	GB/T 32957-2016	Cold-drawn or cold-rolled precision inside diameter seamless steel tubes for hydraulic and pneumatic system service
167	GB/T 32958-2016	Stainless steel clad pipes for fluid transport
168	GB/T 32964-2016	Welded stainless steel pipes for liquefied natural gas
169	GB/T 32970-2016	Longitudinal submerged-arc welded steel pipe for high pressure service at high temperatures
170	GB/T 33156-2016	Precision welded tubes for gas spring
171	GB/T 33167-2016	Seamless stainless steel tubes and pipes for industrial furnace of petroleum and chemical hydrogenation unit
172	GB/T 33821-2017	Seamless steel tubes for automobile stabilizer bar
173	GB/T 33966-2017	Seamless abrasion-resistant steel pipes for mortar service
174	GB/T 34020.1-2017	Double wall copper-brazed steel tubes—Part 1:Tubing system for refrigerator
175	GB/T 34020.2-2017	Double wall copper-brazed steel tubes—Part 2:Tubing system for automobiles
176	GB/T 34020.3-2017	Double wall copper-brazed steel tubes—Part 3: Tubing system for air conditioner and refrigeration
177	GB/T 34105-2017	Seamless steel tubes for ocean engineering structures
178	GB/T 34107-2017	Seamless precision stainless steel pipes for rail transit vehicle braking system
179	GB/T 34109-2017	Seamless steel tubes for drill rod of rotary digging machine
180	GB/T 34201-2017	Seamless hot-rolled square and rectangular steel tubes for structure
181	GB/T 34567-2017	Cold-formed corrugated steel pipes
182	GB/T 35185-2017	Composite reinforced line pipe for the petroleum and natural gas industry
183	GB/T 3639	Seamless cold-drawn or cold-rolled steel tubes for precision applications
184	GB/T 3639-2021	Seamless cold-drawn or cold-rolled steel tubes for precision applications
185	GB/T 37577-2019	Welded large diameter steel pipes for low-temperature-service piping
186	GB/T 37578-2019	Urea grade ultra-low carbon austenitic seamless stainless steel tubes and pipes
187	GB/T 37636-2019	Welded steel pipes for offshore engineering pile
188	GB/T 37701-2019	Corrosion resistant alloy clad or lined steel pipe for petroleum and natural gas industries
189	GB/T 38810-2020	Seamless stainless steel pipes for liquefied natural gas
190	GB/T 40297-2021	Seamless austenitic stainless steel pipes for high pressure hydrogenation unit
191	GB/T 40316-2021	Welded high strength shaped and round steel tubes for automobile structure
192	GB/T 40317-2021	Seamless stainless steel pipes for oxygen pipeline
193	GB/T 41354-2022	Hydraulic fluid power—Plain-end,seamless and welded precision steel tubes—Dimensions and nominal working pressures
194	GB/T 42541	Coated steel pipes for gas piping
195	GB/T 42675-2023	Welded antibacterial stainless steel pipes and fittings
196	GB/T 43105-2023	Seamless steel tubes for hydroformed part
197	GB/T 43107-2023	Seamless stainless steel tubes for instrumentation pressure connecting for nuclear power plants
198	GB/T 43898-2024	Seamless precision steel tubes for engineering machinery hydraulic cylinder
199	GB/T 45779-2025	Welded shaped steel tubes for structure
200	GB/T 45781-2025	Seamless steel tubes for mechanical structures
201	GB/T 5117-2012	Covered electrodes for manual metal arc welding of non-alloy and fine grain steels
202	GB/T 5310-2023	Seamless steel tubes and pipes for high pressure boiler
203	GB/T 5312-2025	Seamless steel tubes and pipes for ship
204	GB/T 5312-2025	Seamless steel tubes and pipes for ship
205	GB/T 6479-2013	Seamless steel tubes for high-pressure chemical fertilizer equipments
206	GB/T 6728	Cold forming hollow sectional steel for general structure
207	GB/T 8162	Seamless steel tubes for structural purposes
208	GB/T 8163-2018	Seamless steel pipes for liquid service
209	GB/T 9711	Petroleum and natural gas industries—Steel pipe for pipeline transportation systems
210	GB/T 9808-2023	Seamless steel tubes for drilling
211	GB/T 983-2012	Welding consumables — Covered electrodes for manual metal arc welding of stainless and heat-resisting steels – Classifications, MOD
212	GB/T 9948-2013	Seamless steel tubes for petroleum cracking
213	GB/T 9948-2025	Seamless steel tubes and pipes for petrochemical and chemical facilities
214	GB/T12459-2017	Steel Buttwelding Pipe Fittings – Types and Parameters
215	GB/T13401-2017	Steel Buttwelding Pipe Fittings – Technical Specifications
216	GB/T17395—2024	Dimensions,shapes,masses and tolerances of steel tubes
217	GB/T5135.20	Automatics prinkler system—Part20: Coating steel pipe
218	IEC 60981:2019	Extra heavy-duty electrical rigid steel conduits
219	ISO 10763	Hydraulic fluid power — Plain-end, seamless and welded precision steel tubes — Dimensions and nominal working pressures
220	ISO 21809-1	Petroleum and natural gas industries — External coatings for buried or submerged pipelines used in pipeline transportation systems Part 1: Polyolefin coatings (3-layer PE and 3-layer PP)
221	ISO 21809-11:2019	Petroleum and natural gas industries — External coatings for buried or submerged pipelines used in pipeline transportation systems Part 11: Coatings for in-field application, coating repairs and rehabilitation
222	ISO 21809-2:2014	Petroleum and natural gas industries — External coatings for buried or submerged pipelines used in pipeline transportation systems — Part 2: Single layer fusion-bonded epoxy coatings
223	ISO 21809-3:2016	Petroleum and natural gas industries — External coatings for buried or submerged pipelines used in pipeline transportation systems — Part 3: Field joint coatings
224	ISO 21809-4:2009	Petroleum and natural gas industries — External coatings for buried or submerged pipelines used in pipeline transportation systems — Part 4: Polyethylene coatings (2-layer PE)
225	ISO 21809-5:2017	Petroleum and natural gas industries — External coatings for buried or submerged pipelines used in pipeline transportation systems — Part 5: External concrete coatings
226	ISO 2560:2020	Welding consumables — Covered electrodes for manual metal arc welding of non-alloy and fine grain steels — Classification
227	ISO 3074	Steel tubes for automotive purposes specification
228	ISO 3183	Petroleum and natural gas industries — Steel pipe for pipeline transportation systems
229	ISO 559	Steel tubes for water and sewage 作废
230	ISO 8535	Diesel engines-Steel tubes for high-pressure fuel injection pipes – Part 1: Requirements for seamless cold-drawn single wall tubes
231	ISO 11960	Petroleum and natural gasindustries -Steel pipes for use ascasing or tubing for wells
232	ISO 3581	Welding consumables
233	JIS C 8305:1999	Rigid steel conduits
234	JIS G3478	Carbon steel tubes for general machine structural purposes
235	JIS G3429	Seamless steel pipe for high pressure gas container
236	JIS G3441	Alloy steel tubes for machine purposes
237	JIS G3444	Carbon steel tubes for general structure
238	JIS G3445	Carbon steel tubes for machine structure purposes
239	JIS G3452	Carbon steel pipes for ordinary piping
240	JIS G3454	Carbon steel pipes for pressure service
241	JIS G3455	Carbon Steel Pipe for Pressure Service
242	JIS G3456	Carbon steel pipes for high temperature
243	JIS G3458	Alloy Steel Pipes
244	JIS G3459	Stainless steel pipes
245	JIS G3460	Steel Pipes for Low Temperature Service
246	JIS G3461	Carbon steel boiler and heat exchanger tubes
247	JIS G3462	Alloy steel boiler and heat exchanger tubes
248	JIS G3463	Stainless steel tubes for boiler and heat exchanger
249	JIS G3464	Steel Heat Exchanger Tubes for Low Temperature Service
250	JlS G3465	Seamless steel pipe for drilling
251	JIS G3467	Steel Tubes for Fired Heater
252	JIS G3466	Carbon steel Square for general structural purposes
253	JIS G3472	Electric Resistance Welded Carbon Steel Tubes for Automobile Structural Purposes
254	JIS G3473	Carbon Steel Tubes Cylinder Barrels
255	JIS G3474	High Tensile Strength Steel Tubes for Tower Structural Purposes
256	JIS G4051	Carbon steel for Machine Structural Use
257	JIS G3429	Seamless Steel Tubes for High Pressure Gas Cylinder
258	JIS G3465	Seamless Steel Tubes for Drilling
259	JIS G4805	Seamless Pipe High Carbon Chromium Bearing Steel Pipe
260	ASTM A450	General Requirements for Carbon, Ferritic Alloy, and Austenitic Alloy Steel Tubes
261	ASTM A530	General Requirements for Specialized Carbon and Alloy Steel Pipe
262	EN 10296-1	Welded circular steel tubes for mechanical and general engineering purposes. Non.alloy and alloy steel tubes
263	DIN 2462	Seamless tubes of stainless steel
264	DIN 17456	General Purpose Seamless Stainless Steel Tubes
265	DIN 17458	Seamless Circular of Austenitic Stainless Steel Tube
266	EN 10216-5	Stainless Steel Seamless Tubes for pressure purposes