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SA204GrB boiler steel plate for pressure vessel
SA204GrB steel tensile strength is 70–90 [485–620]kis [MPa].
SA204GrB material belongs to molybdenum alloy steel plates, intended particularly for welded boilers and other pressure vessels. Plates under this specification are available in three grades having different strength levels: Grade A; Grade B; and Grade C.
SA204Gr.B alloy steel plates heat analysis (%)
|
C
|
Si
|
Mn
|
P
|
S
|
Mo
|
|
0.20-0.27
|
0.13-0.45
|
0.90-0.98
|
0.035
|
0.035
|
0.45–0.60
|
Mechanical Properties of SA204GrB steel plate
|
Tensile strength, kis [MPa]
|
70-90 [485-620]
|
|
Yield strength, min, kis [MPa]
|
40 [275]
|
|
Elongation in 8 in. [200 mm], min, %
|
17
|
|
Elongation in 2 in. [50 mm], min, %
|
-
|
Dimensions of SA204GrB steel plates:
Thickness from 5mm to 150mm
Width: from 1,500mm to 2,500mm
Length: from 6,000mm to 12,000mm
Technical conditions
Ultrasonic tested as per SA 578 or any other as per requirement
2) MTC acc to EN 10204 3.1 / 3.2
3) Charpy Impact tested at -20 /-46 DegC.
4) Furnace Normalised
5) BQ Plates with IBR form IV<
Supplementary Test HIC Test | NACE MR0175 | Z15 | Z25 | Z35 | S1 | S2 | S3 | S4.1 | S5 | S6 | S7 | S8 | S9| S11 | S12 | S14 | S17
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