Cs Smls Carbon Steel Seamless Pipe & Tube
✔ Standard: ASTM A53; API 5L ;ASTM A106
✔ WT: 2-60mm
✔ Length: 5.8/ 6/ 11.8/ 12m
✔ END: Plain End, Beveled End
✔ Coating: 3PE coating; 3PP coating; FBE coating; Epoxy coating ✔ Application:for converying gas, water & oil for fluids transmission
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CS SMLS (Carbon Steel Seamless) pipe & tube refers to a type of hollow cylindrical product made from carbon steel through a seamless manufacturing process, which means it has no welded joints.
carbon seamless pipe Production process
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Seamless carbon steel Pipe is made by hot rolling and piercing a solid billet through it to leave a hollow tube.Seamless steel pipe manufacturing process is divided into hot-rolled and cold drawn seamless pipe.
- Production process of hot-rolled seamless steel pipe: tube billet heating perforation three-roller/cross-rolling& continuous rolling de pipe sizing cooling straightening hydraulic test marking seamless steel pipe with leverage effect detected.
- Production process of cold drawn seamless steel tubes: tube blank heating perforation heading annealing pickling oiling multiple cold drawing blank tube heat treatment straightening hydraulic test marking storage.
| Tolerances of carbon seamless steel pipe | ||
| Pipe types | Pipe sizes(mm) | Tolerances |
| Hot rolled smls steel pipe | OD<50 | ±0.50mm |
| OD≥50 | ±1% | |
| WT<4 | ±12.5% | |
| WT 4～20 | +15%, -12.5% | |
| WT>20 | ±12.5% | |
| Cold drawn cs smls pipe | 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% | |
seamless cs pipe Key Standards
- ASTM A53: Covers black and hot - dipped zinc - coated welded and seamless steel pipes, which are widely used in general pipeline systems.
- ASTM A106: Specifies seamless carbon steel pipes for high - temperature service, and is often used in pipelines conveying high - temperature fluids, such as in the petroleum and chemical industries.
- API 5L: It is a pipeline specification, which is widely used in the design, manufacture, and inspection of oil and gas pipeline steel pipes, and is applicable to seamless and welded steel pipes.
- API 5CT: This standard is for casing and tubing, and is used to regulate the technical requirements of seamless steel pipes for oil and gas well casing and tubing.
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