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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.

Services
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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.