The A516 / SA516 standard, its full name is “Standard Specification for Pressure Vessel Plates, Carbon Steel, for Moderate- and Lower-Temperature Serviceâ€, could almost be described as the default material specification for pressure vessel applications particularly outside of Europe and it is widely used by designers and engineers in many market sectors. You may also see the following variations:
ASTM A516 Gr. 70N or ASME SA516 Gr. 70N – the “N†is added to show that the steel is normalised
ASTM A516M or ASME SA516M – the “M†indicates that the material is certified in metric units
ASME SA516 Gr. 70 / ASTM A516 Gr. 70 - the specification
Despite its wide use and application, A516 / SA516 is a remarkably straightforward standard in its basic form with just five key chemical elements specified along with three mechanical properties. It does not even need to be heat treated in any way.
Chemical Requirements
| Element | Thickness | Composition (%) | Note | |||
| Carbon (max) | 12.5 mm and under | 0.27 | A, B, C | |||
| over 12.5 to 50 mm | 0.28 | A, B, C | ||||
| over 50 to 100 mm | 0.3 | A, B, C | ||||
| over 100 mm | 0.31 | A, B, C | ||||
| Manganese | 0.85 - 1.20 | A, C | ||||
| 0.79 - 1.30 | B, C | |||||
| Phosphorus (max) | 0.025 | A, B | ||||
| Sulphur (max) | 0.025 | A, B | ||||
| Silicon | 0.15 - 0.40 | A | ||||
| 0.13 - 0.45 | B | |||||
| Mechanical Property | Value | |||||
| Tensile Strength, MPa (ksi) | 485 - 620 (70 - 90) | |||||
| Yield Strength, min MPa (ksi) | 260 (38) | |||||
| Elongation min, % 200 mm (8 in) | 17 | |||||
| Elongation min, % 50 mm (2 in) | 21 | |||||
| Place of Origin | Not Given |
| Minimum Order Quantity | Not Given |
| Supply Ability | Not Given |
| Packaging Details | Not Given |
| Delivery Details | Not Given |
Not Given
