A297 HH
ASTM
A297 HH
ASME
SA297 HH
Type
25Cr-12Ni
AISI
309
UNS -Cast
J93503
UNS -Wrought
S30900
Chemical Composition
Carbon
Manganese
2.00% Max
Silicon
2.00% Max
Phosphorus
0.04% Max
Sulfur
0.04% Max
Chromium
24.00 - 28.00%
Nickel
11.00 - 14.00%
Molybdenum
0.50% Max
Physical Properties
Yield Strength
35 ksi Min
Tensile Strength
75 ksi Min
Elongation at 2 in
10% Min
Resources
ASTM Standard
