Technical Data Sheet
| Chemical Composition Limits | ||||||
| Weight% | C | Si | Mn | P+S max | Cr | Ni |
| 5S15 | 0.10-0.15 | 0.10-0.35 | 0.35-0.60 | P 0.025 S 0.020 |
0.30 max | 2.75-3.25 |
| Chemically similar British Specifications BS.970 Pt4 | ||||||
| Weight% | C | Si | Mn | P+S max | Cr | Ni |
| EN33 | 0.10-0.15 | 0.10-0.35 | 0.35-0.60 | 0.050 max | 0.30 max | 2.75-3.50 |
| Other Chemically similar Specifications | ||||||
| Weight% | C | Si | Mn | P+S max | Cr | Ni |
| MSRR 6004 | – | – | – | – | – | – |
| WS 1.5637 | 0.12 max | 0.10-0.35 | 0.30-0.60 | 0.035 | – | 3.20-3.80 |
Typical Mechanical Properties
| Grade | Treatment | Tensile Strength Rm (tonf/in²) | Elongation in 5.65 √Cross Sectional Area % | 120D Impact FT. lbs | Ruling Section |
| S15 | Hardened and Tempered | 50 | 12 | 35 | 3/4" |
Availability
Alloy S15 is only available in Bar. For all stock availability contact Sales.