| GB | EN | ASTM | USE |
|---|---|---|---|
| Q235B | S235JR | A36 | Ordinary brackets, embedded parts, thin plates |
| Q355B | S355JR | A572 Gr50 | Heavysteel, photovoltaic brackets, equipment structures |
| Q355NH | S355J2W | A588 | Outdoorweather-resistant, open-air steel structure |
| Q245R/Q355R | P265GH/P355GH | A516GR70 | Vessels,boilers, and pressure bearing parts |
Classification of steel plate thickness
Sheet
Thickness: 0.5~3.0mm
Common: cold-rolled plate, hot-rolledsheet, galvanized sheet, color-coated plate
Usage: enclosure, ceiling, chassis, lightcomponents, stamping parts
Medium and heavy plates (medium plates)
Thickness: 3.0~20.0mm
The largest amount on the market: openplate, tread plate, steel structure blanking plate
Usage: brackets, bases, connecting plates,embedded parts, photovoltaic connectors
Thick plates
Thickness: 20.0~60.0mm
Usage: equipment base, heavy industrystructure, flange blank, thickened load-bearing parts
Extra thick plate
Thickness: >60mm
Usage: pressure vessels, large machinery,heavy industry forging, key parts of bridges