This standard specifies the method for measuring the depth of nitriding and nitrocarburizing layers of aviation steel parts. This standard is applicable to the determination of nitriding and nitrocarburizing layer depth of steel parts in aviation products. Other products can also be implemented with reference.
HB 5023-1994 history
1994HB 5023-1994 Measuring method for nitriding and nitrocarburizing layer depth of aerospace steel parts