Overview SA 515 Gr 60, SA 515 Gr 65 &
SA 515 Gr 70
Course grain steel intended for intermediate / high temperature service in boilers and other PVQ applications. This grade is produced in both the As Rolled and Normalized condition.
Chemical Requirements
*Elements represented in percentage
| Elements Composition % | SA 515 Gr 60 (Grade 415) |
SA 515 Gr 65 (Grade 450) |
SA 515 Gr 70 (Grade 485) |
|---|---|---|---|
| Carbon, max | |||
| 1 in. (25 mm) and under | 0.24 | 0.28 | 0.31 |
| Over 1 to 2 in. (25 to 50 mm), incl | 0.27 | 0.31 | 0.33 |
| Over 2 to 4 in. (50 to 100 mm), incl | 0.29 | 0.33 | 0.35 |
| Over 4 to 8 in. (100 to 200 mm), incl | 0.31 | 0.33 | 0.35 |
| Over 8 in. (200 mm) | 0.31 | 0.33 | 0.35 |
| Manganese, max | |||
| Heat analysis | 0.90 | 0.90 | 1.20 |
| Product analysis | 0.98 | 0.98 | 1.30 |
| Phosphorus, max | 0.035 | 0.035 | 0.035 |
| Sulfur, max | 0.04 | 0.04 | 0.04 |
| Silicon | |||
| Heat analysis | 0.15-0.40 | 0.15-0.40 | 0.15-0.40 |
| Product analysis | 0.13-0.45 | 0.13-0.45 | 0.13-0.45 |
Tensile Requirements
| SA 515 Gr 60 (Grade 415) |
SA 515 Gr 65 (Grade 450) |
SA 515 Gr 70 (Grade 485) |
|
|---|---|---|---|
| Tensile strength, ksi (MP) | 60-80(415-550) | 65-85(450-585) | 70-90(485-620) |
| Yield strength, min. ksi (MP) | 32(220) | 35(240) | 38(260) |
| Elongation in 8 in. (200 mm), min, % | 21 | 19 | 17 |
| Elongation in 2 in. (50 mm), min, % | 25 | 23 | 21 |