Seamless Steel Pipe (SMLS Tube)
TAGS: Seamless Steel Pipe | API 5L Line Pipe | Carbon & Alloy Steel Tube
Seamless steel pipe (SMLS) provides significantly higher strength, toughness, and corrosion resistance compared to welded steel pipe. Manufactured without a seam weld, these pipes can withstand extreme pressure and harsh working environments. They are widely utilized in petroleum pipelines, natural gas transmission, chemical processing, and critical structural engineering.
Rolling Range & Dimensions
- Outer Diameter (OD): 1/2 inch – 48 inch (21.3 mm - 1219 mm)
- Wall Thickness (WT): SCH10, SCH20, SCH40, SCH80, SCH160, XXS
- Length Range: 5000 mm – 12000 mm (Customizable cut-to-length available)
- Material Types: Carbon Steel (e.g., ASTM A106), Alloy Steel (e.g., ASTM A335 P11/P22), Stainless Steel (e.g., ASTM A312)
Primary Applications
- Oil and Gas Drilling: Essential for transporting oil, gas, and fluids over long distances. Built to withstand high pressure and extreme temperatures.
- Chemical Industry: Excellent corrosion resistance makes them ideal for transporting highly corrosive chemicals, acids, and alkalis.
- Construction & Structural: Used in heavy-duty building frames, bridges, and foundation pilings due to their exceptional load-bearing capacity.
- Mechanical Manufacturing: Used to machine critical components such as aerospace engine parts, hydraulic cylinders, and oilfield machinery.
Available Standards & Steel Grades
We supply a massive inventory of seamless pipes across various international models, brands, and grades. Check the comprehensive standard chart below:
| Standard | Available Steel Grades |
|---|---|
| API SPEC 5L (Line Pipe) |
API 5L Grade A, Grade B, X42, X46, X52, X56, X60, X65, X70 |
| ASTM / ASME (American Standard) |
A106 / SA106: Grade B, Grade C (High-temp Carbon Steel) A53 / SA53: Grade A, Grade B A335 / SA335 (Alloy): P1, P2, P5, P9, P11, P12, P22, P91, P92... A333 / SA333 (Low-temp): Grade 1, 3, 4, 6, 7, 8, 9, 10, 11 A213 / SA213 (Boiler): T2, T5, T9, T11, T12, T22, T91... A179, A192, A210: Heat Exchanger & Boiler Tubes |
| DIN 17175 / DIN 1629 (German Standard) |
DIN 17175: St35.8, St45.8, 15Mo3, 13CrMo44, 10CrMo910 DIN 1629: St37.0, St44.0, St52.0 |
| EN 10216 / EN 10210 / EN 10297 (European Standard) |
EN 10210 (Structural): S235JRH, S275J0H, S275J2H, S355J0H, S355J2H EN 10216 (Pressure): P195GH, P235GH, P265GH, 16Mo3, 13CrMo4-5 EN 10297 (Mechanical): E236, E275, E355a, C35E, C45E, 38Mn6 |