Galling and wear resistant, austenitic. Corrosion resistance better than type 304 in most media and pitting resistance superior than type 316. Room temperature yield strength about 2 times type 304. Excellent high-temperature oxidation resistance and low-temperature impact resistance. Applications include valve stems, seats and trim, nuts and bolts, screening, chain drive systems, and pins, bushings, and roller bearings. |
UNS S21800, ASME Code Case 1817, ASTM A193 (grade B8S), ASTM A194 (grade 8S), ASTM A276, ASTM A479, ASTM A580 |