Alloy Grade UNS: CH20 – Austenitic Alloys

  • 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

Tensile, ksi

0

Tensile, MPa

0

Yield, ksi

0

Yield, MPa

0

Elongation

0%

Heat Treatment: Solution Anneal