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You are here: Home- Selling listWhat is A204 Gr.B Plate ?

What is A204 Gr.B Plate ?

Posted:8/10/2017 8:57:54 PM

ASTM A204 specification covers 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. The steel shall be killed. The steel shall conform to the chemical requirements specified. Tension tests on plates shall conform to the requirements specified.
Mo-Alloy steel plate SA204 Grade A,SA204 Grade B, SA204 Grade C, A204 Grade A, A204 Grade B,A204 Grade C which are under steel specification ASME SA204 / SA204M and ASTM A204 / A204M.
This specification covers molybdenum-alloy steel plates, intended particularly for welded boilers and other pressure vessels.
Dimensions of A204 Grade B Steel Plates: 
Thickness from 5mm to 150mm
Width: from 1,500mm to 2,500mm
Length: from 6,000mm to 12,000mm
A204 Gr.B Plate Technical conditions
1) 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
A204 Gr.B Plate Equivalent grade:
A204 GR A / B / C steel plate/sheet is in ASTM standard. The equal material of A204 GR A / B / C is: AFNOR 36206 15CD 2.05
ASTM A204 GR A / B / C    AFNOR 36206     15CD 2.05
ASTM A204 GR A / B / C steel Plates Chemical Composition % :
Main chemical composition in ASTM A204 GR A / B / C steel : A204GRA Carbon max 0.18,A204GRB Carbon max 0.20,A204GRC Carbon max 0.23;Manganese max 0.90, Silicon 0.15-0.40, Phosphorus max 0.035, Sulphur max 0.035 More detailed information
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