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Standard: ASTM A516
Description: A516 Grade 415 (A516 Gr415) pressure vessel steel is a grade specified in the American ASTM A516 standard. It's a carbon steel plate specifically designed for welded pressure vessels. The "415" in its name refers to a minimum tensile strength of 415 MP...
A516 Grade 415 (A516 Gr415) pressure vessel steel is a grade specified in the American ASTM A516 standard. It's a carbon steel plate specifically designed for welded pressure vessels. The "415" in its name refers to a minimum tensile strength of 415 MPa (megapascals), and it is completely equivalent to A516 Gr. 70, where "70" denotes a minimum tensile strength of 70 ksi. A516 Grade 415 is the most widely used carbon vessel plate for medium and low-temperature applications in the pressure vessel industry worldwide. It's known for its excellent overall performance, reliable toughness, and superior weldability.
A516 Gr.415 pressure vessel steel is primarily used to manufacture equipment that withstands pressure. This includes applications in the petrochemical, power generation, and pharmaceutical and food industries. It's used to make equipment and components such as reactors, heat exchangers, separators, spherical tanks, oil and gas tanks, nuclear reactor pressure shells, high-pressure pipes for hydropower stations, and turbine scrolls.
The chemical makeup of A516 Grade 415 pressure vessel steel ensures its suitability for pressure vessel applications.
| Element | C (%) | Mn (%) | P (%) | S (%) | Si (%) |
|---|---|---|---|---|---|
| Content | 0.24 max | 0.60-1.20 | 0.035 max | 0.035 max | 0.15-0.40 |
The mechanical performance of A516 Grade 415 pressure vessel steel is critical for its application in high-stress environments.
| Property | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) |
|---|---|---|---|
| Value | 415-550 | 220 min | 25 min |
A516 Grade 415 pressure vessel steel can be compared to other international standards for similar applications.
| Standard | Equivalent Grade |
|---|---|
| EN 10028-2 | P265GH |
| DIN 17155 | HII |
| BS 1501 | 161-430A |
| GB 713 | Q245R |
| JIS G3115 | SB410 |
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