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MIL-STD-1501B, MILITARY STANDARD: CHROMIUM PLATING, LOW EMBRITTLEMENT, ELECTRO-DEPOSITION (29 MAR 1978)., This standard covers the engineering electrodeposition of a hard chromium on high strength steel substrates and the properties of deposit. Subsequent heat treating techniques needed to insure low hydrogen embrittlement of steel are also described. This standard meets and exceeds therequirements of QQ-C-320 and can be used when plating inaccordance with QQ-C-320.