ASTM A515 boiler steel plate pressure vessel steel sheet introduction:
ASTM A515 boiler steel plate pressure vessel steel sheet includes three different levels, A515 grade 60, A515 grade 65, A515 grade 70. The thickness of ASTM A515 boiler steel plate pressure vessel steel sheet is limited only by the capacity of the composition to meet the specified mechanical property requirements.But most steel mills limit the maximum thickness of ASTM A515 boiler steel plate pressure vessel steel sheet to 200mm.
If the ASTM A515 boiler steel plate pressure vessel steel sheet is no more than 50mm in thickness, it is usually supplied in the as-rolled condition. Of course, the client also can require the steel mill to do normalizing. If the thicknesses of ASTM A515 boiler steel plate pressure vessel steel sheet is above 50mm, it shall be normalized.
ASTM A515 boiler steel plate pressure vessel steel sheet chemical composition:
| Grade | C | Mn | P | S | Si | ||||
| t≤25 | 25<t≤50 | 50<t≤100 | 100<t≤200 | 200<t | |||||
| A515 grade 60 | 0.24 | 0.27 | 0.29 | 0.31 | 0.31 | 0.90 max | 0.035 max | 0.035 max | 0.15~0.40 |
| A515 grade 65 | 0.28 | 0.31 | 0.33 | 0.33 | 0.33 | ||||
| A515 grade 70 | 0.31 | 0.33 | 0.35 | 0.35 | 0.35 | 1.20 max | |||
ASTM A515 boiler steel plate pressure vessel steel sheet mechanical properties:
| Grade | Yield strength | Tensile strength | Elongation | |
| ksi(N/mm²) | ksi(N/mm²) | % | ||
| A515 grade 60 | 32 (220) min | 60~80 (415~550) | GL=8(200) | 21 min |
| GL=2(50) | 25 min | |||
| A515 grade 65 | 35 (240) min | 65~85 (450~585) | GL=8(200) | 19 min |
| GL=2(50) | 23 min | |||
| A515 grade 70 | 38 (260) min | 70~90(485~620) | GL=8(200) | 17 min |
| GL=2(50) | 21 min | |||
ASTM A515 steel equivalent grades:
Warning! Only for reference
| Steel Grade | China | Japanese | Germany | France | Italy | Sweden | UK |
| A515 grade 60 | GB 713 20g | JIS G3103 SB410 | DIN 1715 1.0425 | A48 CP, AP, FP | Fe 460-2-KW | SS21, 02, 01 | Gr 360, 400 |
| A515 grade 65 | GB 713 22g | JIS G3103 SB450 | DIN 1715 1.0435 | A48 CP, AP, FP | Fe 460-2-KW | SS21, 02, 01 | Gr 360, 400 |
| A515 grade 70 | JIS G3103 SB480 | DIN 1715 1.0844 | A48 CP, AP, FP | Fe 460-2-KW | SS21, 02, 01 | Gr 360, 400 |
ASTM A515 boiler steel plate pressure vessel steel sheet application:
ASTM A515 boiler steel plate pressure vessel steel sheets are carbon-silicon steel plates primarily for intermediate and higher temperature service in welded boilers and other pressure vessels projects.
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