In the field of materials science and engineering, Q345R is a widely used low-alloy high-strength structural steel, and the qualification of its welding procedures is a crucial step in ensuring the safe operation of critical equipment such as pressure vessels and pipelines.

公司焊接工艺评定编号,编制,审核,批准,目录一,焊接工艺评定任务书,共页,二,预焊接工艺指导书,共页,三,焊接工艺评定报告,共页,四,附件,检验和材料报告,共页

案例：某造船厂在试件焊接后发现UT检测有线性缺陷，经分析为焊接速度过快导致未熔合，调整速度后重新焊接并通过评定。覆盖范围：一份WPS可由多份PQR支持