GL-F620 STEEL PLATE| GL-F620
2011年11月4日 by admin
GL-F620 STEEL PLATE
GL-F620 is applied to extra high strength steels, which is defined as steel with specified min yield stress of 420Mpa. The max yield is 690Mpa in BV A690.
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-F620 steel grade, please refer to the following:
GL-F620 Chemical composition heat analysis
| Element | GL-F620 Max % |
| C | 0.18 |
| Mn | 1.70 |
| Si | 0.55 |
| S | 0.025 |
| P | 0.025 |
| N | 0.020 |
Other alloy elements should be along with GL Society Classification requirement.
GL-F620 Mechanical properties, longitudinal min impact energy
| Grade | Thickness | Yield Strength | Tensile Strength | Elongation | Impact Energy |
| (mm) | MPa (min) | MPa | % (min) | (KV J) (min) | |
| | | | | -60 degree | |
| GL-F620 | 8-260 | 620 | 720-890 | 15 | 41J |
Note: the impact energy under less 150mm thickness
Related Grade: NV F620 | BV F690
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