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1. The technology conditions apply to all kinds of engineering machinery equipment that can be welding with high strength 8 ~ 50 mm wear-resistant steel plates.
2. The size, shape, roughness, weight and allow deviation
The steel plate size and shape, weight and deviation should be allowed to meet the provisions of GB709-88.
3. Technical requirements
3.1 the chemical composition of steel (melting analysis) shall conform to the provisions of the table 1
Table 1 Wt％
|
C |
Si |
Mn |
S |
P |
Cr |
Mo |
V |
|
0.14～0.22 |
1.50～1.90 |
1.80～2.20 |
≤0.010 |
≤0.020 |
0.60～0.90 |
0.40～0.60 |
≤0.10 |
3.2 delivery status: the tempering
3.3 mechanical properties
3.3.1 the mechanical properties of the steel plate should comply with the regulations of the table 2
|
tensile strength σs MPa |
yield strength σb MPa |
elongation δ50 ％ |
impact AKU transverse20℃J |
|
≥1100 |
≥850 |
≥10 |
≥25 |
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