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Test coupon from A351 CK20 melt.

A351 CK20

Austenitic Stainless

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Comparative Classifications

ASTM Specification

A351

ASME Specification

SA351

UNS (Cast)

J94202

UNS (Wrought)

SAE

AISI

Carbon:

0.04 - 0.20%

Silicon:

1.75% Max

Phosphorus:

0.04% Max

Manganese:

1.50% Max

Sulfur:

0.04% Max

Chromium:

23.00 - 27.00%

Nickel:

19.00 - 22.00%

Molybdenum:

0.50% Max

Nitrogen:

Nitrogen + Carbon:

Vanadium:

Tungsten:

Aluminum

Titanium:

Copper:

Columbium:

Barium:

Boron:

Zirconium:

Cerium + Lanthanum:

Iron:

Residual Elements:

Tensile Strength:

65 ksi Min

Elongation at 2 in:

30% Min

Reduction of Area:

Yield Strength:

28 ksi Min

Chemical Composition

Physical Properties

Alloy Specification

Related Alloys

Frequently Asked Questions