A515gr55/60/65/70 steel plate, ASTM A515gr55/60/65/70 steel plate, under ASTM standard, we can regard A515gr55/60/65/70 steel plate as Steel for Boilers and Pressure Vessels
A515gr55/60/65/70 steel plate is one mainly of Steel for Boilers and Pressure Vessels, A515gr55/60/65/70 covers steel plates of intermediate tensile strength for pressure vessels to be operated at intermediate or higher temperatures. The four grades offer excellent combinations of strength, weldability and toughness to permit designers flexibility in the design of pressure vessels coming under the jurisdiction of the ASME Pressure Vessel Code.
| Grade | Thickness (t) mm |
Chemical Composition % | Tensile Test | |||||||
| C | Si | Mn | P | S | Yield strength | ksi(N/mm²) | Elongation | |||
| Test | piece | |||||||||
| Grade 60 | t≦25.4 | 0.24 | 0.15 ～ 0.40 |
0.90 max |
0.035 max |
0.035 max |
32 (220) min | 60~80 (415~550) |
GL＝8(200) GL＝2(50) |
21 min 25 min |
| 25.4＜t≦50.8 | 0.27 | |||||||||
| 50.8＜t≦101.6 | 0.29 | |||||||||
| Grade 65 | t≦25.4 | 0.28 | 35 (240) min | 65~85 (450~585) |
GL＝8(200) GL＝2(50) |
19 min 23 min |
||||
| 25.4＜t≦50.8 | 0.31 | |||||||||
| 50.8＜t≦101.6 | 0.33 | |||||||||
| Grade 70 | t≦25.4 | 0.31 | 1.20 max |
38 (260) min | 70~90 (485~620) |
GL＝8(200) GL＝2(50) |
17 min 21 min |
|||
| 25.4＜t≦50.8 | 0.33 | |||||||||
| 50.8＜t≦101.6 | 0.35 | |||||||||
Source:
Tags: