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Test coupon from A494 CU5MCUC melt.

A494 CU5MCUC

Nickel Base Steels

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Comparative Classifications

ASTM Specification

A494

ASME Specification

SA494

UNS (Cast)

N08826

UNS (Wrought)

N08825

SAE

AISI

Carbon:

0.05% Max

Silicon:

1% Max

Phosphorus:

0.03% Max

Manganese:

1% Max

Sulfur:

0.02% Max

Chromium:

19.5 - 23.5%

Nickel:

38 - 44%

Molybdenum:

2.5 - 3.5%

Nitrogen:

Nitrogen + Carbon:

Vanadium:

100% Max

Tungsten:

100% Max

Aluminum

Titanium:

Copper:

1.5 - 3.5%

Columbium:

0.6 - 1.2%

Barium:

Boron:

Zirconium:

Cerium + Lanthanum:

Iron:

100% Max

Residual Elements:

Tensile Strength:

75000 ksi Min

Elongation at 2 in:

20% Min

Reduction of Area:

Yield Strength:

35000 ksi Min

Chemical Composition

Physical Properties

Alloy Specification

Related Alloys

Frequently Asked Questions