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.

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.