By varying the heat treatment and by close control of all operations, the characteristic duplex structure of AMPCO 18 is refined to produce a material AMPCO 18.22 having substantially higher ultimate strength, yield strength and hardness. Applications: AMPCO 18.22 has been developed to meet the exact requirements of the aircraft industry for an alloy having increased physical properties, hardness and sufficient elongation to withstand important impacts and loads. It is recommended for use as bushings, bearings liners, inserts, piston parts, nuts and slides, etc. |