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

Standard Methods for Determination of the Diffusible Hydrogen Content of Martensitic, Bainitic, and Ferritic Steel Weld Metal Produced by Arc Welding

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标准号

AWS A4.3-1993

发布

1993年

发布单位

美国焊接协会

 

 

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.

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