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在压力容器产品监督检验过程中,好多人为焊接工艺评定和产品焊接试板的冲击试验试验温度和合格指标争论不休,主要的焦点集中在容器板如16MnR的冲击试验温度和合格指标上。大家知道,GB 6654—1996《压力容器用钢板》第二号修改单对16MnR原材料的冲击试验温度和合格指标作了修改,分别为0℃和31J。于是有人就认为16MnR焊接工艺评定和产品焊接试板的冲击试样也应该做0℃冲击,冲击功不小于31J为合格。其实不
During the supervision and inspection of pressure vessel products, many people have been debated the impact of welding process qualification and impact test of product welding test panels on the test temperature and the qualification index. The main focus is on the impact test temperature and the conformity index of the container panel such as 16MnR. We all know, GB 6654-1996 “Pressure Vessel Steel Plate” Second Amendment to 16MnR raw material impact test temperature and compliance indicators were modified, respectively 0 ℃ and 31J. So some people think 16MnR welding process assessment and product welding test specimens should also do 0 ℃ impact impact, impact power is not less than 31J qualified. Actually not