| Category | Main materials | Execution standards | Specification range | Purpose |
| Seamless tube | 10#、20#、35#、45#、16Mn 27SiMn |
GB8162-99 GB8163-99 GB3087-99 GB5310-95 ST45.8、Ⅲ GB6479-86 GB9948-88 GB5312-99 |
∮12-630×1.5-40 | |
| structural pipe | 20、35、45 | GB/T8162-1999 | ∮6-610×1.5-40 | For general structural use |
| fluid pipe | 20 | GB/T8163-1999 | ∮8-610×1.5-40 | Fluid transportation |
| Boiler Tube | 20 | GB3087-1999 | ∮10-426×2-40 | Boiler overheating pipes, boiling water pipes, locomotive sized smoke pipes |
| Alloy tube |
Gr5Mo(P5、STFA25、T5、) 15GrMo(P11、P12、STFA22) 13GrMo44 12Gr1MoV P22(10GrMo910) T91、P91、P9、T9 WB36 |
GB5310-95 GB9948-88 ASTMA335/A335m ASTMA213/A213m DIN17175-79 JISG3467-88 JISG3458-88 |
∮16-824×2-100 | Seamless steel pipes for the petroleum, chemical, power, and boiler industries |
| Petroleum cracking tube |
20 12GrMo 15GrMo |
GB9948-88 | ∮10.530×1.5-36 | Seamless pipes for furnace tubes, heat exchange tubes, and pipelines in petroleum refining plants |
| high-pressure boiler tube |
20G、SA106c ST45.8/3 |
GB5310-95 ASTMA106-99 DIN17175-79 |
∮16-824×2-65 | Heat resistant seamless steel pipes for high-pressure boilers |
| 16MnLow alloy tube | 16Mn | GB8162 | ∮22-630×2-30 | |
| hydraulic prop tube | 27SiMn | GB/T17396-1998 | ∮70-377×12-40 | Hydraulic support, etc |
| Fertilizer equipment pipe | 20、16Mn、Q345 | GB6479-2000 | ∮25-426×6-40 | Fertilizer equipment and pipelines |
