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Test coupon from A447 Type II melt.

A447 Type II

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Comparative Classifications

ASTM Specification

A447

ASME Specification

SA447

UNS (Cast)

UNS (Wrought)

SAE

AISI

Carbon:

0.2 - 0.45%

Silicon:

1.75% Max

Phosphorus:

0.03% Max

Manganese:

2.5% Max

Sulfur:

0.03% Max

Chromium:

23 - 28%

Nickel:

10 - 14%

Molybdenum:

Nitrogen:

0.2% Max

Nitrogen + Carbon:

Vanadium:

Tungsten:

Aluminum

Titanium:

Copper:

Columbium:

Barium:

Boron:

Zirconium:

Cerium + Lanthanum:

Iron:

Residual Elements:

Tensile Strength:

80000 ksi Min

Elongation at 2 in:

4% Min

Reduction of Area:

Yield Strength:

Chemical Composition

Physical Properties

Alloy Specification

Related Alloys

Frequently Asked Questions