

DD54D+Z is same with DD51D+Z and they are both hot  rolled basal steel plate under the standard Q/BQB 420-2003. It is used for deep  stamping with special low carbon. 
DD54D+Z Chemical composition:
| Grade | Chemical composition % | |||||||
| C | Si | Mn | P | S | Alt | Ti | Nb | |
| DD54D+Z | 0.01 | 0.10 | 0.30 | 0.025 | 0.020 | 0.015 | 0.1 | - | 
| STEEL GRADE | Tensile    Strength | Yield    Strength | Elongation%    min | The    coating adhesion | 
| 36 | ||||
| DD54D+Z | 360 | 260 | 0a | 
The grade St06ZR is same with the garde DD54D+Z. If you need any offer for St06ZR or DD54D+Z, please contact with BEBON international CO., LTD, we will do our best to give you our best price.