ASTM A455
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The ASTM A455 specification is the Standard Specification for Pressure Vessel Plates, Carbon Steel, High-strength Manganese plates used in the application of welded pressure vessels. There is one chemistry composition defined while there are multiple strength levels available dependent on plate thickness.
| Grade | Product type | Thickness (in) |
Width (in) |
Length (in) |
|---|---|---|---|---|
| ASTM A455 | Plate | 0.1875 - 0.750 | 72 - 120 | 240 - 1020 |
Width: Please inquire for plate widths less than 72 in. For thicknesses less than 0.25 in., maximum width is 96 in.
Length: Please inquire for plate lengths less than the listed minimum or greater than the listed maximum.
Tensile testing is performed in the transverse direction.
| Grade | Thickness (in) |
Yield strength (min ksi) |
Tensile strength (ksi) |
Elongation in 2" 1) (min %) |
Elongation in 8" 1) (min %) |
|---|---|---|---|---|---|
| ASTM A455 | 0.187 - 0.375 | 38 | 75 - 95 | 22 | 15 |
| ASTM A455 | 0.376 - 0.580 | 37 | 73 - 93 | 22 | 15 |
| ASTM A455 | 0.581 - 0.750 | 35 | 70 - 90 | 22 | 15 |
1) Refer to ASTM A20/A20M for Elongation adjustments based on plate thickness.