非标准试样冲击侧向膨胀量合格判定

Acceptance value for lateral expansion for non-standard impact test specimen of stainless steel

分析了JB 4 74 4 - 2 0 0 0中奥氏体不锈钢改用冲击侧向膨胀量的原因 ,标准中没有给出非标准试样的合格指标 ,但ASME规范及试验证明 ,非标准试样的合格指标与标准试样相同。

The resulting reason of austenite stainless steel changed to lateral expansion in standard JB4744-2000 is analyzed,then,although there is the acceptance standard of non-standard impact test specimen,but ASME and test can prove that the acceptance standard of non-standard impact test specimen is same as standard sample.