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Cold Rolled Carbon Steel Round Pipe
Brand Name:ZNGL
Place of Origin:China
Tolerance:±1%
Processing Service:Welding, Punching, Cutting, Bending, Decoiling
Oiled or Non-oiled:Non-oiled
Invoicing:by actual weight
Delivery Time:8-14 days
Usage:Fluid Transportation
Cold-rolled carbon steel round pipe: it is made by hot rolling or cold rolling of high-quality carbon steel such as 10, 20, 30, 35, 45, etc. . Cold-rolled carbon steel round pipes made of low carbon steel such as 10 and 20 are mainly used for fluid conveying pipelines. Cold-rolled carbon steel round pipes made of medium carbon steel such as 45 and 40Cr are used to manufacture mechanical parts, such as stressed parts of automobiles and tractors.
| Grade Comparison | |
| GB | NM300,NM360,NM400,NM450,NM500 |
| SS | HARDNESS400, HARDNESS450, HARDNESS500, HARDNESS600 |
| DIN | XAR400, XAR450, XAR500, XAR600, Dillidur400, Dillidur500 |
| NBN | QUARD400, QUARD450, QUARD500 |
| NF | FORA400, FORA500, Creusabro4800, Creusabro8000 |
| JIS | JFE-EH360 , JFE - EH400 , JFE - EH500 , WEL-HARD400 , WELHARD500 |
| SFS | RAEX400, RAEX450, RAEX500 |
| Grade | |||||
| Chemical Composition ( ≤ ) | NM300 | NM360 | NM400 | NM450 | NM500 |
| C | 0.23 | 0.25 | 0.3 | 0.35 | 0.38 |
| Si | 0.7 | 0.7 | 0.7 | 0.7 | 0.7 |
| Mn | 1.6 | 1.6 | 1.6 | 1.6 | 1.6 |
| P | 0.025 | 0.025 | 0.025 | 0.025 | 0.025 |
| S | 0.015 | 0.015 | 0.01 | 0.01 | 0.01 |
| Cr | 0.8 | 1.1 | |||
| Ni | 0.5 | 0.5 | 0.7 | 0.8 | 1 |
| Mo | 0.4 | 0.5 | 0.5 | 0.55 | 0.65 |
| Thickness (mm) | ≤80 | ≤80 | ≤80 | ≤80 | ≤70 |
| Tensile strength (MPa) | ≥1000 | ≥1100 | ≥1200 | ≥1250 | -- |
| Elongation A (%) | ≥14 | ≥12 | ≥10 | ≥7 | -- |
| Surface Brinell hardness (HBW) | 270-330 | 330-390 | 370-430 | 420-480 | ≥470 |
In the International Standard Classification, cold-rolled carbon steel round pipes relate to pipe components and pipes, iron and steel products, fluid power systems, road vehicles in general, non-ferrous metal products, oil and gas industry equipment, road vehicle installations.
