GL-D420 STEEL PLATE
2011年10月31日 by admin
GL-D420 STEEL PLATE
GL-D420 steel grade shall be killed and find grain treated. Steel grade of strength levels up to and including 500Mpa should be supplied in Normalized, TM or QT condition. Steel grade of strength levels above 500Mpa shall be supplied in TM or QT delivery condition.
Gangsteel is specialized in Super thickness steel grade. We have much experience in manufacture and exporting extra high strength steel grade.
For more information in GL-D420 steel grade, please refer to the following:
GL-D420 Chemical composition heat analysis
| Element | GL-D420 Max % |
| C | 0.20 |
| Mn | 1.70 |
| Si | 0.55 |
| S | 0.030 |
| P | 0.030 |
| N | 0.020 |
Other alloy elements should be along with GL Society Classification requirement.
GL-D420 Mechanical properties, longitudinal min impact energy
| Grade | Thickness | Yield Strength | Tensile Strength | Elongation | Impact Energy |
| (mm) | MPa (min) | MPa | % (min) | (KV J) (min) | |
| | | | | -20 degree | |
| GL-D420 | 8-260 | 420 | 530-680 | 18 | 28J |
Note: the impact energy under less 150mm thickness
Related Grade: NV D420 | BV D460
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