ASTM A240 321H belong to standard ASTM A240/A240M, which specification covers chromium, chromium-nickel, and chromium-manganese-nickel stainless steel plate, sheet, and strip for pressure vessels and for general applications.
All requirements for orders for ASTM A240 321H orders should be furnished under ASTM A240/A240M shall conform to the appli- cable requirements of the current edition of Specification A 480/A 480M.
ASTM A240 321H chemical composition
|
Grade |
C |
Mn |
P |
S |
Si |
Cr |
Ni |
Mo |
N |
|
A240 321H |
0.08 |
2.00 |
0.045 |
0.030 |
0.75 |
16.0-18.0 |
10.0-14.0 |
2.00-3.00 |
0.10 |
ASTM A240 321H mechanical properties
|
Grade |
Tensile strength, min Mpa |
Yield strength, min Mpa |
Elongation in 2 in % |
Hardness, max |
|
Brinell |
Rockwell B |
|
A240 321H |
515 |
205 |
40 |
217 |
95 |
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