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Carbon Steel Cold Drawn Seamless Tubing
Production process of cold drawn seamless pipe
In order to obtain seamless steel pipe with smaller diameter or better quality, cold rolling, cold drawing (cold drawn) or a combination of both must be used. Cold rolling is usually carried out on a two high mill. The steel pipe is rolled in an annular pass composed of variable section circular groove and fixed conical plug. Cold drawing (cold drawn) is usually carried out on a single chain or double chain cold drawing machine of 0.5 ~ 100t.
For high-quality carbon structural steel cold drawn seamless pipe, in addition to ensuring chemical composition and mechanical properties, hydrostatic test, crimping, flaring, flattening and other tests shall be carried out.
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This photo shows cold drawn seamless steel pipe.
Weight calculation formula of cold drawn seamless steel pipe
(outer diameter wall thickness) * wall thickness * 0.02466 = kg / M (weight per meter)
Specification of cold drawn seamless steel pipe
Φ4×0.5 | Φ16×0.5 | Φ26×1.8 | Φ35×9.0 | Φ48×5.0 | Φ70×2.8 | Φ90×10 |
Φ4×0.8 | Φ16×0.8 | Φ26×2.0 | Φ35×10 | Φ48×5.5 | Φ70×3.0 | Φ90×12 |
Φ4×1.0 | Φ16×1.0 | Φ26×2.2 | Φ38×0.5 | Φ48×6.0 | Φ70×3.5 | Φ90×14 |
Φ4×1.2 | Φ16×1.2 | Φ26×2.5 | Φ38×0.8 | Φ48×7.0 | Φ70×4.0 | Φ90×16 |
Φ5×0.5 | Φ16×1.5 | Φ26×2.8 | Φ38×1.0 | Φ48×8.0 | Φ70×4.5 | Φ95×2.0 |
Φ5×0.8 | Φ16×1.8 | Φ26×3.0 | Φ38×1.2 | Φ48×9.0 | Φ70×5.0 | Φ95×2.2 |
Φ5×1.0 | Φ16×2.0 | Φ26×3.5 | Φ38×1.5 | Φ48×10 | Φ70×5.5 | Φ95×2.5 |
Φ5×1.2 | Φ16×2.2 | Φ26×4.0 | Φ38×1.8 | Φ50×1.0 | Φ70×6.0 | Φ95×2.8 |
Φ6×0.5 | Φ16×2.5 | Φ26×4.5 | Φ38×2.0 | Φ50×1.2 | Φ70×7.0 | Φ95×3.0 |
Φ6×0.8 | Φ16×2.8 | Φ26×5.0 | Φ38×2.2 | Φ50×1.5 | Φ70×8.0 | Φ95×3.5 |
Φ6×1.0 | Φ16×3.0 | Φ26×5.5 | Φ38×2.5 | Φ50×1.8 | Φ70×9.0 | Φ95×4.0 |
Φ6×1.2 | Φ16×3.5 | Φ26×6.0 | Φ38×2.8 | Φ50×2.0 | Φ70×10 | Φ95×4.5 |
Φ6×1.5 | Φ16×4.0 | Φ26×7.0 | Φ38×3.0 | Φ50×2.2 | Φ70×12 | Φ95×5.0 |
Φ6×1.8 | Φ16×4.5 | Φ26×8.0 | Φ38×3.5 | Φ50×2.5 | Φ70×14 | Φ95×5.5 |
Φ6×2.0 | Φ16×5.0 | Φ28×0.5 | Φ38×4.0 | Φ50×2.8 | Φ75×1.0 | Φ95×6.0 |
Φ7×0.5 | Φ16×5.5 | Φ28×0.8 | Φ38×4.5 | Φ50×3.0 | Φ75×1.2 | Φ95×7.0 |
Φ7×0.8 | Φ16×6.0 | Φ28×1.0 | Φ38×5.0 | Φ50×3.5 | Φ75×1.5 | Φ95×8.0 |
Φ7×1.0 | Φ18×0.5 | Φ28×1.2 | Φ38×5.5 | Φ50×4.0 | Φ75×1.8 | Φ95×9.0 |
Φ7×1.2 | Φ18×0.8 | Φ28×1.5 | Φ38×6.0 | Φ50×4.5 | Φ75×2.0 | Φ95×10 |
Φ7×1.5 | Φ18×1.0 | Φ28×1.8 | Φ38×7.0 | Φ50×5.0 | Φ75×2.2 | Φ95×12 |
Φ7×1.8 | Φ18×1.2 | Φ28×2.0 | Φ38×8.0 | Φ50×5.5 | Φ75×2.5 | Φ95×14 |
Φ7×2.0 | Φ18×1.5 | Φ28×2.2 | Φ38×9.0 | Φ50×6.0 | Φ75×2.8 | Φ95×16 |
The above table lists part of sizes of seamless pipes. If you need other sizes, just feel free to contact us directly.
We support size customization as your requirement.
