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Cast Grade: CH20

OVERVIEW: Austenitic stainless steel with good tensile strength compared to other austenitic allloys.

TYPICAL USES: Pump and valve parts, food & beverage, and waste treatment equipment.

MetalTek Grade: MTEK 309

Similar Specifications

Cast UNS: J93400

Cast Grade: CH20

Cast ASTM: A351, CH20 (CENT, INVEST, SAND)

Wrought UNS: S30900

Wrought Grade: 309

Typical Chemical Composition (% by wt.)

Cr: 22.0 - 26.0

Fe: Bal

Mn: 1.50 max

Ni: 12.0 - 15.0

Si: 2.00 max

C Max: 0.20

Minimum Mechanical Properties

Brinell Typical: 163

Tensile, ksi: 70

Tensile, MPa: 485

Yield, ksi: 30

Yield, MPa: 205

Elongation %: 30

Heat Treatment: Solution Annealed