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Test coupon from A744 CK3MCUN melt.

A744 CK3MCUN

Austenitic Stainless

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Comparative Classifications

ASTM Specification

A744

ASME Specification

SA744

UNS (Cast)

J93254

UNS (Wrought)

SAE

AISI

Carbon:

0.025% Max

Silicon:

1.00% Max

Phosphorus:

0.045% Max

Manganese:

1.20% Max

Sulfur:

0.01% Max

Chromium:

19.50 - 20.50%

Nickel:

17.50 - 19.50%

Molybdenum:

6.00 - 7.00%

Nitrogen:

0.18 - 0.24%

Nitrogen + Carbon:

Vanadium:

Tungsten:

Aluminum

Titanium:

Copper:

0.50 - 1.00%

Columbium:

Barium:

Boron:

Zirconium:

Cerium + Lanthanum:

Iron:

Residual Elements:

Tensile Strength:

80 ksi Min

Elongation at 2 in:

35% Min

Reduction of Area:

Yield Strength:

38 ksi Min

Chemical Composition

Physical Properties

Alloy Specification

A743 CK3MCuN

J93254

A351 CK3MCUN

J93254

Related Alloys

Frequently Asked Questions