Boiler pipe standard
PIC-(Boiler pipe standard)
Boiler pipe standard GB5310
| Trade Mark | Steel tube type | C | Si | Mn | P | S | Cr |
| Max | |||||||
| 10 | Middle and low pressure boiler pipe | 0.07-0.13 | 0.17-0.37 | 0.35-0.65 | 0.035 | 0.035 | 0.15 |
| 20 | 0.17-0.23 | 0.17-0.37 | 0.35-0.65 | 0.035 | 0.035 | 0.25 | |
| 20G | High pressure boiler pipe | 0.17-0.23 | 0.17-0.37 | 0.35-0.65 | 0.025 | 0.015 | - |