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Non-Corrosion Resisting Steel 4 S28
Technical Data Sheet
| Chemical Composition Limits | |||||||
| Weight% | C | Si | Mn | P+S max | Cr | Mo | Ni |
| 4S28 | 0.26-0.34 | 0.10-0.35 | 0.45-0.70 | P 0.025 S 0.020 |
1.10-1.40 | 0.20-0.35 | 3.90-4.30 |
| Chemically similar British Specifications BS.970 Pt2 | |||||||
| Weight% | C | Si | Mn | P+S max | Cr | Mo | Ni |
| 835M30 | 0.26-0.34 | 0.10-0.35 | 0.45-0.75 | P 0.025-0.050 S 0.025-0.040 |
1.10-1.40 | 0.20-0.35 | 3.90-4.30 |
| EN30B | 0.26-0.34 | 0.10-0.35 | 0.40-0.60 | - | - | 0.20-0.40 | 3.90-4.30 |
| Other Chemically similar Specifications | |||||||
| Weight% | C | Si | Mn | P+S max | Cr | Mo | Ni |
| AFNOR 30NCD16 | 0.25-0.35 | 0.10-0.40 | 0.20-0.55 | P 0.030 S 0.025 |
1.20-1.50 | 0.40-0.60 | 3.70-4.30 |
| AFNOR 35NCD16 | 0.03-0.37 | 0.10-0.40 | 0.30-0.60 | P 0.030 S 0.025 |
1.60-2.00 | 0.30-0.50 | 3.70-4.20 |
| WS 1.2766 NiCrMo16 |
0.32-0.38 | 0.15-0.30 | 0.40-0.60 | 0.035 max | 1.20-1.50 | 0.20-0.40 | 3.80-4.30 |
Typical Mechanical Properties
| Grade | Treatment | Tensile Strength Rm (tonf/in²) | Proof Stress Rp 0.2, (tonf/in²) | Elongation in 5.65 √Cross Sectional Area % | Hardness HB | Ruling Section |
| S28 | Solution Annealed | - | - | - | 285 max | 2 1/2" |
| S28 | Hardened and Tempered | 100 | 73 | 8 | 444 | 2 1/2" |
Availability
Alloy S28 is available in Bar. For all stock availability contact Sales.
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Disclaimer
Every effort is made to ensure that technical specifications are accurate. However, technical specifications included herein should be used as a guideline only. All specifications are subject to change without notice.
