Non-Corrosion Resisting Steel 5S21

Technical Data Sheet


Chemical Composition Limits
Weight% C Si Mn P+S max Ni
5S21 0.10-0.15 0.10-0.35 0.50-0.80 0.040 max 0.04 max
Chemically similar British Specifications BS.970 Pt1
Weight% C Si Mn P+S max Cr
060A15 0.13-0.18 0.40 max 0.50-0.70 0.050 max -
080A15 0.13-0.18 0.40 max 0.70-0.90 0.050 max -
080M15 EN32C 0.12-0.18 0.10-0.40 0.60-1.00 0.050 max -
EN3 0.25 max 0.05-0.35 1.00 max 0.060 max -
0.15-0.25 0.05-0.35 0.60-1.00 - -
Other Chemically similar Specifications
Weight% C Si Mn P+S max Cr
AMS 5070 0.18-0.23 0.15-0.30 0.70-1.00 P 0.040
S 0.050
AFNOR XC18SN 0.15-0.22 0.25 max 0.40-0.65 P 0.040
S 0.035
AISI 1022 0.18-0.23 0.15-0.30 0.70-1.00 P 0.040
S 0.050
SIS 1450 0.25 max 0.10-0.40 0.40-0.80 0.050 max -

Typical Mechanical Properties


Grade Treatment Tensile Strength Rm (tonf/in²) Elongation in 5.65 √Cross Sectional Area % Ruling Section
S21 Normalised 25/35 20 6"
S21 Cold Drawn 28 12 6"

Alloy S21 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.