| Steel Grade | GB China | JIS Japan | ASTM America | Din German | |||
| Steel Grade | Steel Grade | Steel Standard | Steel Grade | Steel Grade | Material | Steel Standard | |
| Carbon Steel Pipe/Tube | （Q235）Steel Pipe/Tube | GGP STPY41 | G3452 G3457 | ASTM (A53 F) A283-D | (St33) | 1.0033 | DIN1626 |
| 10#Steel Pipe/Tube | STPG38 | G3454 | ASTM A135-A A53-A | (St37) | 1.011 | DIN1626 | |
| STPG38 | G3456 | ASTM A106-A | St37-2 | 1.0112 | DIN17175 | ||
| STS38 | G3455 | St35.8 St35.4 | 1.0305 1.0309 | DIN1629/4 | |||
| STB30 | G3461 | ASTM A179-C A214-C | St35.8 | 1.0305 | DIN17175 | ||
| STB33 | G3461 | ASTM A192 A226 | St35.8 | 1.0305 | DIN17175 | ||
| STB35 | G3461 | St35.8 | 1.0305 | DIN17175 | |||
| 20#Steel Pipe/Tube | STPG42 | G3454 | ASTM A315-B A53-B | (St42) St42-2 | 1.0130 1.0132 | DIN1626 | |
| STPT42 | G3456 | ASTM A106-B | St45-8 | 1.0405 | DIN17175 | ||
| STB42 | G3461 | ASTM A106-B | St45-8 | 1.0405 | DIN17175 | ||
| STS42 | G3455 | ASTM A178-C A210-A-1 | St45-4 | 1.0309 | DIN1629/4 | ||
| Low Alloy Steel Pipe/Tube | 16MnSteel Pipe/Tube | STS49 STPT49 | G3455 G3456 | ASTM A210-C | St52.4 St52 | 1.0832 1.0831 | DIN1629/4 DIN1629/3 |
| 15MnVSteel Pipe/Tube | STBL39 | G3464 | |||||
| Low Temperature Steel Pipe/Tube | 16MnSteel Pipe/Tube | STPL39 | G3460 | ASTM A333-1.6 | TT St35N | 1.0356 | SEW680 |
| 15MnVSteel Pipe/Tube | STBL39 | G3464 | ASTM A334-1.6 | ||||
| 09Mn2VSteel Pipe/Tube | ASTM A333-7.9 A334-7.9 | TT St35N | 1.0356 | SEW680 | |||
| (06A1NbCuN)Steel Pipe/Tube | STPL46 STBL | G3460 G3464 | ASTM A333-3.4 A334-3.4 | 10Ni14 | 1.5637 | SEW680 | |
| (20Mn23A1)Steel Pipe/Tube | ASTM A333-8 A334-8 | X8Ni9 | 1.5662 | SEW680 | |||
| Heat resistant Steel Pipe/Tube | 16MoSteel Pipe/Tube | STPA12 STBA12、13 | G3458 G3462 | ASTM A335-P1、A369-FP1 A250-T1、A209-T1 | 15Mo3 | 1.5414 | DIN17175 |
| 12CrMoSteel Pipe/Tube | STBA20 | G3462 | ASTM A335-P2、A369-FP2 A213-T2 | ||||
| 15CrMoSteel Pipe/Tube | STPA22 STBA22 | G3458 G3462 | A335-P12、A369-FP12 A213-T12 | 13CrMo44 | 1.7335 | DIN17175 | |
| 12Cr1MoVSteel Pipe/Tube | STPA23 STBA23 | G3458 G3462 | ASTM A335-P11、A369-FP12 A199-T11、A213-T11 | ||||
| Cr2Mo 10MoWVNbSteel Pipe/Tube | STPA24 STBA24 | G3458 G3462 | ASTM A335-P22、A369-FP22 A199-T22、A213-T22 | 10CrMo910 | 1.738 | SEW610 | |
| Cr5MoSteel Pipe/Tube | STPA25 STBA25 STPA26 STBA26 | G3458 G3462 G3458 G3462 | ASTM A335-P5、A389-FP5 A213-T5 A335-P9、A369-FP9 A199-T9、A213-T9 | 12CrMo195 | 1.7362 | DIN17175 | |
Tubing
Carbon steel pipe
Carbon steel pipe is a durable material made of carbon steel, a steel alloy of iron and carbon. Due to its strength and ability to withstand pressure, carbon steel pipes are used in a variety of heavy industries such as infrastructure, ships, stills, and fertilizer equipment.
Carbon steel pipes are hollow with rectangular corners for extra strength in structural applications. They are easy to weld, machine and cut. Carbon steel pipes are made of steel ingots or solid round steel through perforation into capillary tubes, and then made by hot rolling, cold rolling or cold drawing.
Hot-rolled carbon steel pipes are divided into general steel pipes,low and medium pressure boiler steel pipes, high pressure boiler steel pipes, alloy steel pipes,stainless steel pipes, petroleum cracking pipes,geological steel pipes and other steel pipes.
