A543 Grade C in the standard ASTM A543/A543M is a kind of Ni-Cr-Mo alloy steel plates material used to fabric high temperature pressure vessels. ASTM A543 Grade C have two grades or levels. They are : grade B and grade C. A543 Grade C need to be done the (Quenching + Tempering ) heat-treatment to meet the property requirement in the standard ASTM A543/A543M.
Key words:A543 Grade C,ASTM A543 Grade C,A543 Grade C alloy steel plates,A543 Grade C Ni-Cr-Mo alloy steel,ASTM A543 Grade C alloy steel plates for pressure vessels for fabric high temperature pressure vessels.
ASTM A543 Grade C steel chemical composition : %
|
Composition |
Grade C |
|
|
C≤ |
Heat analyse |
0.18 |
|
Product analyse |
||
|
Mn ≤ |
Heat analyse |
0.40 |
|
Product analyse |
||
|
S ≤ P ≤ |
Heat analyse |
0.020 |
|
Product analyse |
||
|
Si |
Heat analyse |
0.15~0.40 |
|
Product analyse |
0.13~0.45 |
|
|
Ni ≤ |
Heat analyse |
2.00~3.50 |
|
Product analyse |
1.93~3.57 |
|
|
Cr |
Heat analyse |
1.00~1.90 |
|
Product analyse |
0.94~1.96 |
|
|
Mo |
Heat analyse |
0.20~0.65 |
|
Product analyse |
0.16~0.69 |
|
|
V |
Heat analyse |
0.03 |
ASTM A543 Grade C Principal Design Features :
One of the most widely used precipitation hardening grades in the business. While soft and ductile in the solution annealed condition, it is capable of high properties with a single precipitation or aging treatment. Characterized by good corrosion resistance, high harness, toughness and strength.
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Related link : ASTM A543 Grade B,ASTM A543
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