Composition (Nominal)
0.12 C, 1.25 Mn, 0.06 P, 0.15 S min., 1.00 Si, 16.00/18.00 Cr, 0.60 Mo, Bal. Fe
Type 430F should be considered when making machined articles from a 17% chromium steel. Type 430F does not harden by heat treatment. It has been used in automatic screw machines for parts requiring good corrosion resistance such as aircraft parts and gears.
Specifications: ASTM A314, ASTM A473, ASTM A581, ASTM A582, ASTM A838