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Test coupon from A297 HI melt.

A297 HI

Heat Resistant Stainless

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Comparative Classifications

ASTM Specification

A297

ASME Specification

SA297

UNS (Cast)

J94003

UNS (Wrought)

SAE

AISI

Carbon:

0.20 - 0.50%

Silicon:

2.00%

Phosphorus:

0.04%

Manganese:

2.00%

Sulfur:

0.04%

Chromium:

26.00 - 30.00%

Nickel:

14.00 - 18.00%

Molybdenum:

0.50%

Nitrogen:

Nitrogen + Carbon:

Vanadium:

Tungsten:

Aluminum

Titanium:

Copper:

Columbium:

Barium:

Boron:

Zirconium:

Cerium + Lanthanum:

Iron:

Residual Elements:

Tensile Strength:

70 ksi Min

Elongation at 2 in:

10% Min

Reduction of Area:

Yield Strength:

35 ksi Min

Chemical Composition

Physical Properties

Alloy Specification

Related Alloys

Frequently Asked Questions