ASTM A387 Grade 11 Class1 is a kind of alloy-steel plate which contains Cr and Mo element. ASTM A387 Grade 11 Class1 steel plate is always used in manufacturing boiler and pressure vessel, such as reactor, heat exchanger, separator and so on.
ASTM A387 Grade 11 Class1 chemical properties:
|
Grade |
C |
Mn |
Si |
P max |
S |
Cr |
Mo |
|
A387 Grade 11 Class1 |
0.04-0.17 |
0.35-0.73 |
0.44-0.86 |
0.035 |
0.035 |
0.94-1.56 |
0.40-0.70 |
ASTM A387 Grade 11 Class1 mechanical properies:
|
Grade |
Tensile Strength(MPa) |
Yield Strength(MPa) min |
% Elongation in 2 in.(50mm) min |
% Elongation in 8 in.(200mm) min |
Impacting Test Temperature(°C) |
|
A387 Grade 11 Class1 |
415-585 |
240 |
22 |
19 |
-20,40,-60 |
ASTM A387 Grade 11 Class1 plate shall be thermally treated either by annealing, normalizing and tempering, or, when permitted by the purchaser, accelerated cooling from the austenitizing temperature by air blasting or liquid quenching, followed by tempering. In general, ASTM A387 Grade 11 Class1 plate will be furnished in either the stress-relieved or the annealed condition.
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