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1, applicable scope
The technology conditions apply to 16-102 mm thickness of A514 Gr F steel plates.
2, size, shape, weight and allow deviation
The steel plate size and shape, weight and deviation should be allowed to meet ASTM A6 / A6M rules.
3, chemical composition
The chemical composition of steel (melting analysis) should be in accordance with table 1.
Table 1 wt%
|
钢号 |
C |
Si |
Mn |
P |
S |
Ni |
Cr |
Mo |
V |
Cu |
B |
|
A514GrF |
0.10 0.20 |
0.15 0.35 |
0.60 1.00 |
≤0.035 |
≤0.035 |
0.70 1.00 |
0.40 0.65 |
0.40 0.60 |
0.03 0.06 |
0.15 0.60 |
0.0005 0.006 |
4、mechanical property
The mechanical properties of the steel plate test results should comply with the provisions of the table 2.。
Table 2 mechanical property
|
specification （mm） |
Re （MPa） |
Rm （MPa） |
A （landscape ，%） |
Akv （J） |
|
16-50 |
≥690 |
≥760 |
≥16 |
-40℃，≥34（average） |
|
50-80 |
≥670 |
-20℃，≥34（average） |
||
|
81-102 |
≥650 |
provide-20℃measured value |
5, manufacturingprocess and delivery status:
The molten steel VD processing, accord with the A6 / A6M fine austenitic grain size requirement; Steel plate to the tempering state delivery.
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