20# 45# Carbon Steel Seamless Tube For General construction and mechanical construction
20# seamless steel tube is made of 20# steel, with slightly higher strength than 15#. It is seldom quenched and has no temper brittleness. Cold deformation plasticity is high, generally for bending, calendering, bending and hammer arch processing, arc welding and contact welding welding performance is good, gas welding thickness is small, strict shape requirements or complex shape on the parts prone to crack. Machinability cold drawing or normalizing state is better than annealing state, generally used for manufacturing force is not large and high toughness requirements of the workpiece.
20# seamless steel tube is made of high quality carbon structural steel
Seamless steel pipe is a kind of round, square and rectangular steel with hollow section and no joint around. Seamless steel tube is made of steel ingot or solid tube billet through perforation into wool tube, and then hot rolled, cold rolled or cold drawn. Seamless steel pipe with hollow section, a large number of used as the pipeline for conveying fluid, steel pipe and round steel and other solid steel compared with the bending and torsional strength at the same time, lighter weight, is a kind of economic section steel, widely used in the manufacture of structural parts and mechanical parts, such as oil drilling steel scaffolding.
Purpose: Seamless steel tube is a kind of economic section steel, has a very important position in the national economy, widely used in petroleum, chemical, boiler, power station, ship, machinery manufacturing, automobile, aviation, aerospace, energy, geology, construction and military and other departments.
Classification:
① According to the section shape, it can be divided into round section pipe and special-section pipe
② According to the material: carbon steel pipe, alloy steel pipe, stainless steel pipe, composite pipe
③ According to the connection mode, it can be divided into threaded connection pipe and welded pipe
④ According to the production mode: hot rolling (extrusion, top, expansion) tube, cold rolling (drawing) tube
⑤ According to use: boiler pipe, oil well pipe, pipeline pipe, structural pipe, fertilizer pipe......
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| Product Name | Carbon Steel Seamless Pipe/Tube |
| Size | Customized or standard |
| C | 0.17%～0.2% |
| Si | 0.17%～0.37% |
| Mn | 0.35%～0.65% |
| S | ≤0.035% |
| P | ≤0.035% |
| Cr | ≤0.25% |
| Ni | ≤0.25% |
| Cu | ≤0.25% |
| Tensile Strength(σb(MPa)) | ≥410(42) |
| Yield Strength | ≥245(25) |
| Elongation | ≥25 |
| Hardness | ≤156HB, |
| reduction of area(ψ(%) | ≥5 |
| Advantage | High Cost Performance and stock available |
| Lead Time | 7-15 days |
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SYL 20 45 Carbon Steel Seamless Tube For Construction Cold Rolled Images
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