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SA204 Grade B pressure vessel plate,A204 Grade B Boiler steel plate
Source:Xin Steel Industry Date:2012/11/19
Molybdenum alloy boiler steel plate A204 Grade B contains a higher Carbon than boiler steel plate A204 Grade A,so pressure vessel steel plate A204 Grade B ownd a higher yield strength and tensile strength at 485-620 Mpa.The steel for rolling boiler steel plate SA204 Grade B shall be full killed.Besides ultrasonic examination is neccessary,the following test shall be chosed by the end users when ordered:S1 Vacuum treatment,S3 Simulated post weld heat treatment of mechanical test coupons, S5 Charpy V-notch impact test, S7. High temperature tension test.
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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 B pressure vessel steel plate (Max %)
|
Thickness |
C |
Si |
Mn |
P |
S |
Mo |
|
T≤25 |
0.20 |
0.15/ 0.40 |
0.90 |
0.035 |
0.035 |
0.45/ 0.60 |
|
25＜T≤50 |
0.23 | |||||
|
50＜T≤100 |
0.25 | |||||
|
T＞100 |
0.27 |