A572Gr50，高强度低合金铌-钒结构钢板，国内舞阳钢厂生产。8～300mm厚的A572Gr50低合金高强度结构钢板被广泛应用于工程结构，如建筑钢结构、建筑机械、矿多山机械、载重卡车、桥梁、压力容器等，特别是用于要求具有较好的焊接性和韧性的建筑和工程机械部件。
化学成分：
|
C |
≤0.20 |
|
Si |
≤0.40 |
|
Mn |
≤1.50 |
|
P |
≤0.04 |
|
S |
≤0.05 |
|
Nb |
0.005～0.05 |
牌号 |
屈服强度 MPa |
抗拉强度 MPa |
延伸率δ200, % |
冲击功, Akv, 纵向 |
|
温度. ℃ |
J |
||||
A572Gr50 |
345~470 |
490~600 |
22~35 |
0 |
45~150 |
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