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Hot Rolled Carbon Steel Round Pipe
Brand Name:ZNGL
Place of Origin:China
Outer Diameter:10 - 1000 mm
Thickness:all
Standard:AiSi
Length:12M, 6m, 6.4M
Certificate:API, ce, RoHS, BIS, JIS, GS, ISO9001
Grade:carbon steel
Hot-rolled carbon steel pipes can be divided into high, medium and low carbon steel pipes. The first type has the highest carbon content, which normally exceeds 0.6%. The carbon content of medium carbon steel pipes is between 0.25% and 0.6%. , Its hardness is appropriate, so it is used more, and the carbon content of the third type is only less than 0.25%. The hot-rolled carbon steel pipe is similar to the normal steel pipe, so it is also very common in industrial production.
| 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 |
Hot-rolled carbon steel pipes involve pipeline accessories, steel pipes, cast iron pipes, forgings, oil drilling equipment and instruments, steel plates, steel strips, special materials and their products, heating equipment, comprehensive steel products, pipe fittings, clamps, Seals, water supply, drainage equipment, chemical machinery and equipment parts.
