Overview
CH20 is an austenitic stainless steel with good tensile strength and ductility compared to other austenitic alloys. The alloy contains up to 26% chromium and up to 15% nickel. The higher ratios of chromium and nickel provide better corrosion and oxidation resistance.
Typical Uses
Pump and valve parts, food & beverage, and waste treatment equipment.
MetalTek Grade
MTEK 309
Similar Specifications
Cast UNS: J93400
Wrought UNS: S30900
Wrought Grade: 309
Cast Grade: CH20
Cast ASTM: A351, A743
Typical Chemical Composition (% by wt.)
Aluminum: n/a
Carbon: 0.2
Chromium: 22-26
Manganese: 1.5
Iron: n/a
Copper: n/a
Nickel: 12.0-15.0
Lead: n/a
Tin: n/a
Silicon: 2
Zinc: n/a
Minimum Mechanical Properties
Heat Treatment: Solution Anneal