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China's high quality seamless steel pipe supplier
Find premium seamless steel pipes from the leading factory in China. Explore our high-quality products with reliable delivery and unrivaled customer service.
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PRODUCTS DETAILS
ASTM A53 Gr.B Black and hot-dipped zinc-coated steel pipes welded and seamless ASTM A106 Gr.B Seamless carbon steel for high temperature service ASTM SA179 Seamless cold-drawn low-carbon steel heat exchanger and condenser tubes ASTM SA192 Seamless carbon steel boiler tubes for high pressure ASTM SA210 Seamless Medium-carbon boiler and superheater tubes ASTM A213 Seamless alloy-steel boiler, superheater, and heat-exchanger tubes ASTM A333 GR.6 seamless and welded carbon and alloy steel pipe intended for use at low temperatures. ASTM A335 P9, P11, T22, T91 Seamless ferritic alloy-steel pipe for high-temperature service ASTM A336 Alloy steel forgings for pressure and high-temperature parts ASTM SA519 4140/4130 Seamless carbon for mechanical tubing API Spec 5CT J55/K55/N80/L80/P110/K55 Seamless steel pipe for casing API Spec 5L PSL1/PSL2 Gr.b, X42/46/52/56/65/70 Seamless steel pipe for line pipe DIN 17175 Seamless steel tube for elevated temperture DN2391 Cold drawn seamless prevision pipe DIN 1629 Seamless circular unalloyed steel tubes subject to special requirements
Specification
Application
Types Application Structure Purposes General structure and mechanical Liquid Services Petroleum, gas and other fluids conveying Low and Medium Pressure Boiler Tube Steam and boiler manufacturing Hydraulic Pillar Service Hydraulic support Auto Semi-shaft Casing Auto sem-shaft casing Line Pipe Oil and gas conveying Tubing and Casing Oil and gas conveying Drill Pipes Well drilling Geological Drilling Pipe Geological drilling Furnace tubes, heat exchangers tubes Furnace tubes, heat exchangers
Chemical Composition and Mechanical Properties Standard Grade Chemical Components (%) Mechanical Properties C Si Mn P S Tensile STrength(Mpa) Yield STrength(Mpa) ASTM A53 A ≤0.25 - ≤0.95 ≤0.05 ≤0.06 ≥330 ≥205 B ≤0.30 - ≤1.2 ≤0.05 ≤0.06 ≥415 ≥240 ASTM A106 A ≤0.30 ≥0.10 0.29-1.06 ≤0.035 ≤0.035 ≥415 ≥240 B ≤0.35 ≥0.10 0.29-1.06 ≤0.035 ≤0.035 ≥485 ≥275 ASTM A179 A179 0.06-0.18 - 0.27-0.63 ≤0.035 ≤0.035 ≥325 ≥180 ASTM A192 A192 0.06-0.18 ≤0.25 0.27-0.63 ≤0.035 ≤0.035 ≥325 ≥180 API 5L PSL1 A 0.22 - 0.9 0.03 0.03 ≥331 ≥207 B 0.28 - 1.2 0.03 0.03 ≥414 ≥241 X42 0.28 - 1.3 0.03 0.03 ≥414 ≥290 X46 0.28 - 1.4 0.03 0.03 ≥434 ≥317 X52 0.28 - 1.4 0.03 0.03 ≥455 ≥359 X56 0.28 - 1.4 0.03 0.03 ≥490 ≥386 X60 0.28 - 1.4 0.03 0.03 ≥517 ≥448 X65 0.28 - 1.4 0.03 0.03 ≥531 ≥448 X70 0.28 - 1.4 0.03 0.03 ≥565 ≥483 API 5L PSL2 B 0.24 - 1.2 0.025 0.015 ≥414 ≥241 X42 0.24 - 1.3 0.025 0.015 ≥414 ≥290 X46 0.24 - 1.4 0.025 0.015 ≥434 ≥317 X52 0.24 - 1.4 0.025 0.015 ≥455 ≥359 X56 0.24 - 1.4 0.025 0.015 ≥490 ≥386 X60 0.24 - 1.4 0.025 0.015 ≥517 ≥414 X65 0.24 - 1.4 0.025 0.015 ≥531 ≥448 X70 0.24 - 1.4 0.025 0.015 ≥565 ≥483 X80 0.24 - 1.4 0.025 0.015 ≥621 ≥552
Tolerances Pipe types Pipe sizes(mm) Tolerances Hot rolled OD<50 ±0.50mm OD≥50 ±1% WT<4 ±12.5% WT 4～20 +15%, -12.5% WT>20 ±12.5% Cold drawn OD 6～10 ±0.20mm OD 10～30 ±0.40mm OD 30～50 ±0.45 OD>50 ±1% WT≤1 ±0.15mm WT 1～3 +15%, -10% WT >3 +12.5%, -10%
Chilled water pipe Steam/condensate pipe Heat exchanger pipe Marine/offshore pipe Dredging pipe Industrial pipe Oil and gas pipe Fire fighting pipe Construction/structure pipe Irrigation pipe Drain/sewage pipe Boiler tube
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