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Test coupon from A494 CW12MW melt.

A494 CW12MW

Nickel Base Steels

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Comparative Classifications

ASTM Specification

A494

ASME Specification

SA494

UNS (Cast)

N30002

UNS (Wrought)

N10002

SAE

AISI

Carbon:

0.12% Max

Silicon:

1.00% Max

Phosphorus:

0.03% Max

Manganese:

1.00% Max

Sulfur:

0.02% Max

Chromium:

15.50 - 17.50%

Nickel:

Balance

Molybdenum:

16.00 - 18.00%

Nitrogen:

Nitrogen + Carbon:

Vanadium:

0.20 - 0.40%

Tungsten:

3.75 - 5.25%

Aluminum

Titanium:

Copper:

Columbium:

Barium:

Boron:

Zirconium:

Cerium + Lanthanum:

Iron:

4.50 - 7.50%

Residual Elements:

Tensile Strength:

72 ksi Min

Elongation at 2 in:

4% Min

Reduction of Area:

Yield Strength:

40 ksi Min

Chemical Composition

Physical Properties

Alloy Specification

Related Alloys

Frequently Asked Questions