Steel Bars, Forgings, and Tubing 0.50Cr - 0.55Ni - 0.20Mo (0.15 - 0.20C) (SAE 8617)
|Publication Date:||1 August 2018|
This specification covers an aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock.
These products have been used typically for carburized parts for which intermediate minimum core hardness is required and for which a wide hardness range in sections 0.375 inch (9.52 mm) and under in nominal thickness is acceptable, but usage is not limited to such applications. The core may or may not be machinable after hardening.