ASTM A203/A203M-12
Standard Specification for Pressure Vessel Plates, Alloy Steel, Nickel

Standard No.

ASTM A203/A203M-12

Release Date

2012

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM A203/A203M-17

Latest

ASTM A203/A203M-23

Scope

1.1 This specification covers nickel-alloy steel plates intended primarily for welded pressure vessels.

1.2 Plates under this specification are available with four strength levels and two nickel compositions as follows:

Grade	Nominal Nickel Content %	Yield Strength, min, ksi [MPa]	Tensile Strength, min, ksi [MPa]
A	2.25	37 [255]	65 [450]
B	2.25	40 [275]	70 [485]
D	3.50	37 [255]	65 [450]
E	3.50	40 [275]	70 [485]
F	3.50
2 in. [50 mm] and under		55 [380]	80 [550] cccc
Over 2 in. [50 mm]		50 [345]	75 [515]

1.3 The maximum thickness of plates is limited only by the capacity of the composition to meet the specified mechanical property requirements. However, current practice normally limits the maximum thickness of plates furnished under this specification as follows:

Grade	Maximum Thickness, in. [mm]
A	6 [150]
B	6 [150]
D	4 [100]
E	4 [100]
F	4 [100]

1.4 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents. Therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with this specification.

ASTM A203/A203M-12 Referenced Document

• ASTM A20/A20M Standard Specification for General Requirements for Steel Plates for Pressure Vessels
• ASTM A435/A435M Standard Specification for Straight-Beam Ultrasonic Examination of Steel Plates
• ASTM A577/A577M Standard Specification for Ultrasonic Angle-Beam Examination of Steel Plates
• ASTM A578/A578M Standard Specification for Straight-Beam Ultrasonic Examination of Plain and Clad Steel Plates for Special Applications

ASTM A203/A203M-12 history

• 2023 ASTM A203/A203M-23 Standard Specification for Pressure Vessel Plates, Alloy Steel, Nickel
• 2017 ASTM A203/A203M-17 Standard Specification for Pressure Vessel Plates, Alloy Steel, Nickel
• 2012 ASTM A203/A203M-12 Standard Specification for Pressure Vessel Plates, Alloy Steel, Nickel
• 1997 ASTM A203/A203M-97(2007)e1 Standard Specification for Pressure Vessel Plates, Alloy Steel, Nickel
• 1997 ASTM A203/A203M-97(2007) Standard Specification for Pressure Vessel Plates, Alloy Steel, Nickel
• 1997 ASTM A203/A203M-97(2003) Standard Specification for Pressure Vessel Plates, Alloy Steel, Nickel
• 1997 ASTM A203/A203M-97 Standard Specification for Pressure Vessel Plates, Alloy Steel, Nickel