SA553 Type I in the standard SA553/SA553M is a kind ofNi alloy steel plates materialused to fabric high temperature pressure vessels, the composition of Ni is 8% and 9%. SA553 have two types . They are : type I and type II . SA553 Type I need to be done the (Quenching + Tempering ) heat-treatment to meet the property requirement in the standard ASME SA553/SA553M.
ASME SA553 Type I steel chemical composition(%):S
|
Composition |
Type I |
|
|
C≤ |
Heat analyse |
0.13 |
|
Product analyse |
||
|
Mn ≤ |
Heat analyse |
0.90 |
|
Product analyse |
0.98 |
|
|
S ≤ P ≤ |
Heat analyse |
0.035 |
|
Product analyse |
||
|
Si |
Heat analyse |
0.15~0.40 |
|
Product analyse |
0.13~0.45 |
|
|
Ni ≤ |
Heat analyse |
8.50~9.50 |
|
Product analyse |
8.40~9.60 |
|
ASME SA553 Type I Mechanical Properties:
|
Grade |
Tensile Strength |
Yield Strength |
Elongation in 2 in , 50 mm,min,(%) |
|
SA553 |
100-120 (690-825) |
85 (585) |
20 |
ASME SA553 Type I Delivery Condition:
Normalizing/Tempering/Annealing/Quenching/QT and so on. (According to the customer's request of chemical composition and mechanical properties.)
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