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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 -
EN3D
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"

Availability
Alloy S21 is available in Bar. For all stock availability contact Sales.

Services
At Aircraft Materials all stock items can be shipped out within 24 hours, usually within the same day. Even cutting orders for bar or sheet can be processed and dispatched the same day, and for time-critical situations such as AOGs, we have a dedicated AOG service desk ready to help (aog@aircraftmaterials.com).

Thanks to our global logistics network we can source from anywhere in the world in just a few days. We use a range of transport partners to enable us to ship overnight within the U.K. and Europe and provide fast shipping solutions to the rest of the world. If your requirement is urgent we can offer a priority shipping service, but also if time is not so critical we can offer more cost-effective options to ensure you get the best value for money. To find out more about our services click here.

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.

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