China Sell at Retail Factory Direct Q345b Alloy Steel Plate, Find details about China Alloy Steel Sheet, Alloy Steel Plate from Sell at Retail Factory Direct Q345b Alloy Steel Plate
Classification According to Structure:
1.the pressure vessel with steel plate: in case of the tail of the trademark R, the number of available yield point can also be used with carbon content or containing alloy elements. Such as: Q345, Q345R for the yield point. Another example: 20R, 16MnR, 15MnVR, 15MnVNR, 8MnMoNbR, MnNiMoNbR, 15CrMoR and with carbon content or content of alloy elements to represent.
2.welding gas cylinders with steel plate: in case of the tail of the trademark HP, its brand can be said with the yield point, such as: Q345HP, Q295HP; also can be used to indicate the alloying elements such as: 16MnREHP.
3.boiler steel plate: with a small G in the tail said. Its grades can be said that the yield point, such as: Q390g; also can be used to indicate the amount of carbon or alloy elements, such as 20g, 22Mng, 15CrMog, 16Mng, 19Mng, 13MnNiCrMoNbg, 12Cr1MoVg, etc.
4.the bridge with the steel plate: with a small Q at the end of the brand, such as 16Mnq, Q420q, 14MnNbq, etc..
5.automobile beam steel plate: with a capital l at the end of the brand, said such as 09MnREL, 06til, 08TiL, 10TiL, 09sivl and 16MnL, 16MnREL etc.
Chemical Composition Contrast:
Grade | C | Si | Mn | P | S |
Q345A | ≤0.20 | ≤0.55 | 1.00-1.60 | ≤0.045 | ≤0.045 |
Q345B | ≤0.20 | ≤0.55 | 1.00-1.60 | ≤0.040 | ≤0.040 |
Q345C | ≤0.20 | ≤0.55 | 1.00-1.60 | ≤0.035 | ≤0.035 |
Q345D | ≤0.18 | ≤0.55 | 1.00-1.60 | ≤0.030 | ≤0.030 |
Grade | V | Nb | Al | Ti |
|
Q345A | 0.02-0.15 | 0.015-0.060 |
| 0.02-0.20 |
|
Q345B | 0.02-0.15 | 0.015-0.060 |
| 0.02-0.20 |
|
Q345C | 0.02-0.15 | 0.015-0.060 | ≥0.015 | 0.02-0.20 |
|
Q345D | 0.02-0.15 | 0.015-0.060 | ≥0.015 | 0.02-0.20 |
|