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Test coupon from A744 CN7M melt.

A744 CN7M

Austenitic Stainless

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Comparative Classifications

ASTM Specification

A744

ASME Specification

SA744

UNS (Cast)

N08007

UNS (Wrought)

SAE

ALLOY 20

AISI

Carbon:

0.07% Max

Silicon:

1.50% Max

Phosphorus:

0.04% Max

Manganese:

1.50% Max

Sulfur:

0.04% Max

Chromium:

19.00 - 22.00%

Nickel:

27.50 - 30.50%

Molybdenum:

2.00 - 3.00%

Nitrogen:

Nitrogen + Carbon:

Vanadium:

Tungsten:

Aluminum

Titanium:

Copper:

3.00 - 4.00%

Columbium:

Barium:

Boron:

Zirconium:

Cerium + Lanthanum:

Iron:

Residual Elements:

Tensile Strength:

62 ksi Min

Elongation at 2 in:

35% Min

Reduction of Area:

Yield Strength:

25 ksi Min

Chemical Composition

Physical Properties

Alloy Specification

A743 CN7M

N08007

A351 CN7M

J95150

Related Alloys

Frequently Asked Questions