Carbon Steel Seamless Pipes / Tubes
Carbon steel seamless pipes/tubes are manufactured from high-quality carbon steel through hot rolling or cold drawing processes. With no welded seams, they offer high strength and excellent pressure resistance. Depending on the carbon content, they can be classified as low, medium, or high carbon seamless pipes, suitable for various mechanical and engineering applications.
Carbon steel seamless pipes are widely used in oil, chemical, boiler, pressure vessels, machinery manufacturing, construction, and automotive industries. They can withstand high pressure and temperature and are suitable for transporting water, oil, gas, and other liquid media.
Key Advantages:
High strength and excellent pressure resistance
Seamless structure ensures durability and reliability
Can be heat-treated, cut, and processed
Widely applied in oil, chemical, boiler, machinery, and construction industries
Available Size
API SPEC 5CT | |||
Product Name | Executive Standard | Dimension (mm) | Steel Code / Steel Grade |
Casting | API 5CT | Ø114~219 x WT5.2~22.2 | J55, K55, N80, L80, P110 |
Tubing | API 5CT | Ø48.3~114.3 x WT3.2~16 | J55, K55, N80, L80, P110 |
API SPEC 5L | |||
Product Name | Executive Standard | Dimension (mm) | Steel Code / Steel Grade |
Line Pipes | API 5L | Ø10.3~1200 x WT1.0~120 | A, B, X42, X46, X52, X60, X70, X80, PSL1 / PSL2 |
ASTM / ASME | |||
Product Name | Executive Standard | Dimension (mm) | Steel Code / Steel Grade |
Black and Hot-Dipped Zinc-Coated Seamless Steel Pipes | ASTM A53 | Ø10.3~1200 x WT1.0~150 | Gr.A, Gr.B, Gr.C |
Seamless Carbon Steel Pipes for High Temperature Service | ASTM A106 | Ø10.3~1200 x WT1.0~150 | Gr.B, Gr.C |
Seamless Cold-Drawn Low-Carbon Steel Heat-Exchanger and Condenser Tubes | ASTM A179 | Ø10.3~426 x WT1.0~36 | Low Carbon Steel |
Seamless Carbon Steel Boiler Tubes for High Pressure | ASTM A192 | Ø10.3~426 x WT1.0~36 | Low Carbon Steel |
Seamless Cold-Drawn Intermediate Alloy Steel Heat-Exchanger and Condenser Tubes | ASTM A199 | Ø10.3~426 x 1.0~36 | T5, T22 |
Seamless Medium-Carbon Steel Boiler and Superheater Tubes | ASTM A210 | Ø10.3~426 x WT1.0~36 | A1, C |
Seamless Ferritic and Austenitic Alloy Steel Boiler, Superheater and Heat-Exchanger Tubes | ASTM A213 | Ø10.3~426 x WT1.0~36 | T5, T9, T11, T12, T22, T91 |
Seamless Carbon and Alloy Steel for Mechanical Tubing | ASTM A333 | Ø1/4"~42" x WT SCH20~XXS | Gr.1, Gr.3, Gr.6 |
Seamless and Welded Carbon Steel Pipes and Alloy Steel Pipes for Low Temperature Use | ASTM A334 | Ø1/4"~4" x WT SCH20~SCH80 | Gr.1, Gr.6 |
Seamless Cold-Drawn Carbon Steel Feedwater Heater Tubes | ASTM A556 | Ø10.3~426 x WT1.0~36 | A2, B2 |
| |||
DIN | |||
Product Name | Executive Standard | Dimension (mm) | Steel Code / Steel Grade |
Seamless Steel Tubes for Elevated Temperature | DIN 17175 | Ø10~762 x WT1.0~120 | St35.8, St45.8, 10CrMo910, 15Mo3, 13CrMo44, STPL340, STB410, STB510, WB36 |
Seamless Steel Tubes | DIN 1629 / DIN 2391 | Ø13.5~762 x WT1.8~120 | St37.0, St44.0, St52.0, St52.3 |
Seamless Steel Tubes | DIN 2440 | Ø13.5~165.1 x WT1.8~4.85 | St33.2 |
Seamless Steel Pipes for Structural Purpose | DIN 2393 | Ø16~426 x WT1.0~36 | RSt34-2, RSt37-2, RSt44-2, St52 |
BS | |||
Product Name | Executive Standard | Dimension (mm) | Steel Code / Steel Grade |
Seamless Steel Tubes for Machine Structure | BS 970 | Ø10~762 x WT1.0~120 | Carbon Steel |
Seamless Steel Tubes for Boiler and Heat Exchangers | BS 3059 | Ø10~762 x WT1.0~120 | 360, 410, 440, 460, 490 |
Application
Carbon steel seamless pipe is widely used in petrochemical, shipbuilding, nuclear equipment, gas transmission, boiler and other industries, with high corrosion resistance, good mechanical properties and so on.
