(UNS) K88165
Nominal Analysis
0.13 C, 0.25 Mn, 0.015 P, 0.25 Si, 0.015 S, 4.00 Cr, 3.50 Ni, 1.25 V, 4.25 Mo,
Bal. Fe
A low-carbon, carburizing, bearing steel produced by vacuum induction melting
followed by vacuum arc remelting. M-50 NIL has excellent resistance to softening
at high surface temperatures and exhibits superior fracture toughness characteristics.
It has been used for bearings in aircraft jet turbine engines.
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