Comparative Classifications

Organizations

ASTM Specification

A743

ASME Specification

SA743

UNS Number (Cast)

J92972

UNS Number (Wrought)

S21800

AISI

SAE

218

Common Name (Wrought)

Alloy Specification

Datasheet.

Chemical Composition

Carbon:
0.10% Max
Manganese:
7.00 - 9.00%
Silicon:
3.50 - 4.50%
Phosphorus:
0.06% Max
Sulfur:
0.03% Max
Chromium:
16.00 - 18.00%
Nickel:
8.00 - 9.00%
Molybdenum:
Nitrogen:
0.08 - 0.18%
Nitrogen + Carbon:
Vanadium:
Tungsten:
Aluminum:
Titanium:
Copper:
Columbium (Niobium):
Barium:
Boron:
Zirconium:
Cerium + Lanthanum:
Iron:
Residual Elements:

Physical Properties

Tensile Strength:
85 ksi Min
Yield Strength:
42 ksi Min
Elongation at 2 in.:
30% Min
Reduction of Area:

Frequently Asked Questions

Answers
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Related Alloys

Austenitic Stainless