40 years ago. (Pastimes).

April 1963: Materials engineers and designers who are searching for alloys that combine high strength and toughness may soon be able to add another semi-austenitic, precipitation hardening stainless steel to the list of available candidates.

Engineers at Armco Steel Corp., Middletown, Ohio, report that a new grade, PH 14-8 Mo, retains good toughness and stability at high temperatures even though it is hardened to a tensile strength of about 235,000 psi....

Armco engineers, who will follow up with a progress report in a forthcoming issue of Metal Progress, sa