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HH Steel Composition & Properties

General Information

Cast Alloy Designation:

HH

Alloy family:

Heat Resistant Stainless Steel

UNS #:

J93503

ASTM Standard(s):

A297

Wrought:

309

Chemical Composition

C:

0.20-0.50

Mn:

0.00-2.00

Cr:

24.00-28.00

Mo:

0.00-0.50

Ni:

11.00-14.00

Fe:

55.00-64.80

Cu:

0.00-0.00

Mechanical Properties

Tensile strength (ksi):

0.00-75.00

Yield strength (ksi):

35

Elongation (%):

10

Hardness (Brinell):

0.00-180.00