Cobalt Type 21 is low austenitic with excellent hardening, temperature and impact resistance, and strength. Ideal choice for valve trims, valve bodies, and seals.
C: 0.24% | Mn: 0.8% | Si: 0.8% | Cr: 27.4% | Ni: 2.73% | Mo: 5.4% | Fe: 1.7% | W: 0.17%