ASTM A203 Alloy Steel for Pressure Vessel

ASTM A203 Alloy Steel for Pressure Vessel

ASTM A203 steel(ASME SA203 ) is a kind of Nickel-alloy steel material used to fabric high-temperature pressure vessels. ASTM A203 steel property is based on it's Ni composition. There are five quality steel grades under A203 standard: A203 Grade A, A203 Grade B,A203 Grade D,A203 Grade E,A203 Grade F.

ASTM A203 steel(ASME SA203 ) is a kind of Nickel-alloy steel material used to fabric high-temperature pressure vessels. ASTM A203 steel property is based on it's Ni composition. There are five quality steel grades under A203 standard: A203 Grade A, A203 Grade B,A203 Grade D,A203 Grade E,A203 Grade F.
ASTM A203 plate is used in fabricators serving industry, especially in the oil, gas and chemical supply markets.
ASTM A203 Steel Equivalent
Chemical Requirements for ASTM A203 Alloy Steel(%)

Grade C Mn≥ Si P S
A203 Grade A 0.17 0.78-0.88 0.13-0.45 0.035 0.035
A203 Grade B 0.17 0.78-0.88 0.13-0.45 0.035 0.035
A203 Grade D 0.17 0.7-0.8 0.13-0.45 0.035 0.035
A203 Grade E 0.17 0.7-0.8 0.13-0.45 0.035 0.035
A203 Grade F 0.2 0.7-0.8 0.13-0.45 0.035 0.035

Tensile Requirements for ASTM A203 Alloy Steel

Grade Tensile Strength(MPa) min. Yield Strength(MPa) min. % Elongation in 2 in.(50mm) min Impacting Test  Temperature(°C)
A203 Grade A 450 255 19 -20,40,-60
A203 Grade B 485 275 21 -20,40,-60
A203 Grade D 450 255 19 -20,40,-60
A203 Grade E 485 275 21 -20,40,-60

ASTM A203 Alloy Steel Plates Specification

Standard: ASTM A203 
Grades:A203 Grade A, A203 Grade B,A203 Grade D,A203 Grade E,A203 Grade F
A203 Steel Plate Size Range
Thickness: 6mm to 150mm
Length: 3000mm to 15000mm
Width: 1500mm to 4050mm
A203 plate processing: Shot blasting, cutting, welding, drilling, grinding, testing
Heat treatment: rolled/ normalized/N+T/QT
Certificate: Issued Orginal Mill test certificate under EN 10204 FORMAT 3.1/3.2
Delivery Condition: As Rolled, Normalized Rolling, Furnace Normalizing, Vacuum Degassing, Simulated Post-Weld Heat Treatment or as per customer requirement.
Application: steel boiler plate, high temperature pressure vessel plate
We consistently keep a watch on the changing market demands to devise products that are exact solutions for the same. Our A203 Grade A Alloy Steel plate products are processed through every quality related measure for maximum guarantee of their usage and durability. Due to the advanced technology and constant efforts to enhance production, we are always leaing the ASTM A203 Grade A Alloy Steel industry.

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