AWS A4.3-1993 测定马氏体、贝氏体和铁素体钢电弧焊接金属中可扩散氢含量的标准惯例被谁引用

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适用范围: This standard prescribes a standard weld test assembly, a standard method of test specimen preparation, and two standard methods of analysis for determination of diffusible hydrogen from martensitic, bainitic, and ferritic steel weld metals. The methods of preparation are suitable for shielded metal arc, gas metal arc, flux cored arc, and submerged arc welding processes. Extension of the methods of preparation to other processes, such as gas tungsten arc or plasma arc welding, are possible.

AWS A4.3-1993测定马氏体、贝氏体和铁素体钢电弧焊接金属中可扩散氢含量的标准惯例