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Test coupon from A297 HT melt.

A297 HT

Heat Resistant Stainless

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Comparative Classifications

ASTM Specification

A297

ASME Specification

SA297

UNS (Cast)

N08605

UNS (Wrought)

SAE

AISI

Carbon:

0.35 - 0.75%

Silicon:

2.50% Max

Phosphorus:

0.04% Max

Manganese:

2.00% Max

Sulfur:

0.04% Max

Chromium:

15.00 - 19.00%

Nickel:

33.00 - 37.00%

Molybdenum:

0.50% Max

Nitrogen:

Nitrogen + Carbon:

Vanadium:

Tungsten:

Aluminum

Titanium:

Copper:

Columbium:

Barium:

Boron:

Zirconium:

Cerium + Lanthanum:

Iron:

Residual Elements:

Tensile Strength:

65 ksi Min

Elongation at 2 in:

4% Min

Reduction of Area:

Yield Strength:

Chemical Composition

Physical Properties

Alloy Specification

Related Alloys

Frequently Asked Questions