GMW18184

Description / Abstract: GMW18184, 1st Edition, September 2019 - Hydrogen Embrittlement Risk Assessment and Test Procedures for Transmission and Electric Traction Motor Shafts

Material Description.

This standard provides a specification for assessing the risk of hydrogen embrittlement in high hardness transmission and electric traction motor shafts and a test procedure to evaluate the embrittlement risk of process exposures where potentially embrittling conditions cannot be eliminated.

Symbols.

Not applicable.

Applicability.

Transmission and electric traction motor shafts with hardness 35 HRC ( 32 HRC if they have threads) which are also subjected to a sustained tensile or shear stress during assembly or operation.

Remarks.

Note included on drawings of applicable parts:

This part is considered susceptible to hydrogen embrittlement. Hydrogen embrittlement risk management shall be performed per GMW18184.