ASTM A204 Alloy Steel Plate for Pressure Vessel

About ASTM A204 Steel Plate

Thickness: 6mm to 150mm
Length: 3000mm to 15000mm
Width: 1500mm to 4050mm
Application: steel boiler plate, high temperature pressure vessel plate
Supplementary Technology: HIC Test | NACE MR0175 | Z15 | Z25 | Z35 | S1 | S2 | S3 | S4.1 S5 | S6 | S7 | S8 | S9| S11 | S12 | S14 | S17
Surface: Bare, Oiled, Mill Varnish, Galvanized
Delivery state: Hot Rolled
Steel Grade: Grade A, Grade B, Grade C

Product Scope：

ASTM A204 specification covers molybdenum-alloy steel plates, which is particularly for welded boilers and high temperature pressure vessels. ANSON is an experienced boiler and pressure steel plate supplier which can offer you ASTM A204 steel plate of all grade and dimension range.

Based on it’s Mo composition, ASTM A204 steel plate covers 3 grades: A, B, C. The maximum plate thickness is limited only by the chemical composition to achieve certain mechanical property figure; steel plate and coils under this specification normally limit thickness as follows: ASTM A204 grade A: 6 in[150mm]; ASTM A204 grade B: 6 in[150mm]; ASTM A204 grade C: 4 in[100mm]

ASTM A204 Chemical Composition:

Astm A204 Chemical Composition
Steel Grade	The Element Max (%)
Steel Grade	C	Si	Mn	P	S	Mo
A204 Grade A	0.18-0.25	0.13-0.45	0.90-0.98	0.035	0.035	0.45–0.60
A204 Grade B	0.20-0.27	0.13-0.45	0.90-0.98	0.035	0.035	0.45–0.60
A204 Grade C	0.23-0.28	0.13-0.45	0.90-0.98	0.035	0.035	0.45–0.60

ASTM A204 Mechanical Property:

Mechanical Property of ASTM A204 steel plate	Grade A	Grade B	Grade C
Tensile strength, kis [MPa]	65-85 [450-585]	70-90 [485-620]	75-95 [515-655]
Yield strength, min, kis [MPa]	37 [255]	40 [275]	43 [295]
Elongation in 8 in. [200 mm], min, %	19	17	16
Elongation in 2 in. [50 mm], min, %	23	21	20

ASTM A204 Equivalent steel grade:

ASTM	GB	JIS		DIN			EN
Steel Grade	Steel Grade	Steel Grade	Standard Number	Steel Grade	Material Number	Standard Number	Steel Grade	Material Number	Standard Number
A204-Gr. A.B	16Mo	16Mo	G3103	15 Mo3	1.5414	DIN17155	16Mo3	1.5415	EN 10028-2

ANSON can supply ASTM A204 steel plates from stock or from reputed steel mills. We also offer steel fabrication service where steel plates can go through processings like cutting (any size and any shape), drilling, welding, milling, machining as you require. Our steel mills have fabricating employees that have 5-10 years of working experience. If you are interested in buying ASTM A204 steel plate products, contact us now for the latest price or check the following table for equivalent steel grade of ASTM A204.

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