Non-Corrosion Resisting Steel S157 / 3S107

Technical Data Sheet


Chemical Composition Limits
Weight% C Si Mn P+S max Cr Mo Ni
S157 0.12-0.17 0.15-0.40 0.30-0.60 P 0.025
S 0.020
0.80-1.10 0.20-0.30 3.00-3.50
Chemically similar British Specifications BS.970 Pt3
Weight% C Si Mn P+S max Cr Mo Ni
0.10-0.16 0.10-0.35 0.35-0.60 P 0.040
S 0.050
0.70-1.00 0.10-0.25 3.00-3.75
EN36A 0.12-0.18 0.10-0.35 0.30-0.60 0.050 0.60-1.10 0.10-0.025 3.00-3.75
Other Chemically similar Specifications
Weight% C Si Mn P+S max Cr Mo Ni
AFNOR 16NCD13 0.12-0.17 0.35 max 0.50 max P 0.030
S 0.025
0.85-1.15 0.15-0.30 3.00 - 3.5
WS 1.6657
14NiCrMo 13 4
0.12-0.17 0.15-0.40 0.30-0.60 P 0.030
S 0.025
0.80-1.10 0.20-0.30 3.00 - 3.5

Typical Mechanical Properties

Grade Treatment Tensile Strength Rm , N/mm² Proof Stress Rp 0.2, N/mm² Elongation in 5.65 √Cross Sectional Area% Hardness HB
S157 Hardened and Tempered 1180-1380 930 8 241 max

Alloy S157 is available in Bar. For all stock availability contact Sales.

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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.