ASME SA387 and ASTM A387 Chromium-Molybdenum Steel Plate for Boiler and Pressure

MOQ： 1 Ton
Price： US $650-1,120 / Ton
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Technique	Hot Rolled
Width	10-2000mm
Production Capacity	50000kgs
Carbon Content	0.05-0.21%
Manganese Content	0.55-0.80%
Phosphorus Content	0.025%
Sulfur Content	0.025%
Silicon Content	0.15-0.40%
Chromium Content	0.50-0.80%
Molybdenum Content	0.45-0.60%
Tensile Strength	380-550 MPa
Yield Strength	230 MPa min
Elongation	22% min
Reduction Area	40% min
Vanadium Content	0.18-0.25%

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Product Specification


Technique	Hot Rolled	Width	10-2000mm
Production Capacity	50000kgs	Carbon Content	0.05-0.21%
Manganese Content	0.55-0.80%	Phosphorus Content	0.025%
Sulfur Content	0.025%	Silicon Content	0.15-0.40%
Chromium Content	0.50-0.80%	Molybdenum Content	0.45-0.60%
Tensile Strength	380-550 MPa	Yield Strength	230 MPa min
Elongation	22% min	Reduction Area	40% min
Vanadium Content	0.18-0.25%
High Light	ASME SA387 Steel Plate ，ASTM A387 Boiler Plate ，Chromium-Molybdenum Pressure Vessel Plate

ASME SA387 and ASTM A387 Gr. 11/12/22 Boiler and Pressure Vessel Steel Sheet Plate

ASME SA387 and ASTM A387 Chrome Moly Plate for Boiler Applications

The most commonly used steel specifications for Chrome Moly plate are ASME SA387 and ASTM A387. These specifications provide chromium-molybdenum alloy steel plates designed for pressure vessel applications in boilers and other high-temperature service environments.

Chemical and mechanical properties of the ASME and ASTM specifications are identical
Available from stock with optional cutting to size and shape as required by customer specifications
SA387 and A387 are standardized specifications for pressure vessel plates, alloy steel, chromium-molybdenum

Chemical Composition Requirements

Element	Gr. 2	Gr. 12	Gr. 11	Gr. 22	Gr. 22L	Gr. 21	Gr. 21L	Gr. 5	Gr. 9	Gr. 91*
C	0.05-0.21	0.05-0.17	0.05-0.17	0.05-0.15	0.10	0.05-0.15	0.10	0.15	0.15	0.08-0.12
Mn	0.55-0.80	0.40-0.65	0.40-0.65	0.30-0.60	0.30-0.60	0.30-0.60	0.30-0.60	0.30-0.60	0.30-0.60	0.30-0.60
P	0.025	0.025	0.025	0.025	0.025	0.025	0.025	0.025	0.025	0.020
S	0.025	0.025	0.025	0.025	0.025	0.025	0.025	0.025	0.025	0.010
Si	0.15-0.40	0.15-0.40	0.50-0.80	0.50	0.50	0.50	0.50	0.50	1.00	0.20-0.50
Cr	0.50-0.80	0.80-1.15	1.00-1.50	2.00-2.50	2.00-2.50	2.75-3.25	2.75-3.25	4.00-6.00	8.00-10.00	8.00-9.50
Mo	0.45-0.60	0.45-0.60	0.45-0.65	0.90-1.10	0.90-1.10	0.90-1.10	0.90-1.10	0.45-0.65	0.90-1.10	0.85-1.05
V	-	-	-	-	-	-	-	-	0.04	0.18-0.25

Tensile Requirements - Class 1 Plates

Grade	Tensile (MPa)	Yield (MPa)	Elong. (50mm)	Reduction of Area*
2, 12	380 - 550	230 min	22% min	-
11	415 - 585	240 min	22% min	-
22, 21, 5, 9	415 - 585	205 min	18% min	40% min
21L, 22L	415 - 585	205 min	18% min	40% min

Tensile Requirements - Class 2 Plates

Grade	Tensile (MPa)	Yield (MPa)	Elong. (50 mm)	Reduction of Area*
2	485 - 620	310 min	22% min	-
11	515 - 690	310 min	22% min	-
12	450 - 585	275 min	22% min	-
22, 21, 5, 9	515 - 690	310 min	18% min	40% min
91	585 - 760	415 min	18% min	-

These materials conform to ASTM standard pressure vessel steel specifications for high-temperature and high-pressure applications.

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