1.25Cr0.5MoSi钢板热处理状态对冲击值的影响

The Influence of the 1.25Cr0.5MoSi Steel Plate for Pressure Vessels Heat-treatment State on Impact Value

压力容器用钢板1.25Cr0.5MoSi-20℃夏比(V型缺口)冲击吸收功复验值不合格,经对钢板热处理状态的分析,改变钢板热处理状态,重新进行-20℃夏比(V型缺口)冲击试验,试验结果合格。

The Charpy V-notch impact test value of 1.25Cr0.5MoSi steel plate for pressure vessels at --20℃ is unqualified in the rechecking before acceptance,after analyzing the reason and modified the steel’s heat-treatment state, the Charpy V-notch impact test value is qualified at -- 20℃.