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A204 Grade A Boiler steel plate,SA204 Grade A pressure vessel plate
Source:Xin Steel Industry Date:2012/11/19
Steel standard ASTM A204/A204M and similar steel standard ASME SA204/SA204M which specification for pressure vessel steel plates,molybdenum alloy steel plate A204 Grade A,A204 Grade B,A204 Grade C and SA204 Grade A,SA204 Grade B,SA204 Grade C.For thickness equal and under 40mm,boiler steel plate A204 Grade A shall be supplied normally in the as-rolled delivery condition.The plates also may be ordered in Normalised or stress relieved or both.For thickness above 40mm,pressure vessel steel plate SA204 Grade A shall be in Normalised heat treatment.
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Other relative pressure vessel steel grades under steel standard ASTM and ASME are S/A203 Grade A boiler steel plate,S/A203 Grade B steel plate,S/A203 Grade D alloy steel plate,S/A203 Grade E pressure vessel steel plate,S/A203 Grade F steel plate,S/A204 Grade A boiler steel plate,S/A204 Grade B pressure vessel steel plate,S/A204 Grade C steel plate,S/A285 Grade A steel sheet,S/A285 Grade B boiler steel plate,S/A285 Grade C pressure vessel steel plate,S/A299 Grade A boiler steel plate,S/A299 Grade B steel plate,S/A302 Grade A alloy steel plate,S/A302 Grade B steel plate,S/A302 Grade C boiler steel plate,S/A302 Grade D pressure vessel steel plate.
Chemical composition of Ladle analysis for SA204 Grade A pressure vessel steel plate (Max %)
|
Thickness |
C |
Si |
Mn |
P |
S |
Mo |
|
T≤25 |
0.18 |
0.15/ 0.40 |
0.90 |
0.035 |
0.035 |
0.45/ 0.60 |
|
25＜T≤50 |
0.21 | |||||
|
50＜T≤100 |
0.23 | |||||
|
T＞100 |
0.25 |