2S140 Aircraft Steel S140

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Data Sheet:

Non-Corrosion Resisting Steel 2S140

Chemical Composition Limits
Weight %	C	Si	Mn	P+S max	Cr	Mo	Ni	Other
S140	0.27 / 0.37	0.15 / 0.35	0.45 / 0.70	0.025 P 0.020 S	0.50 / 0.80	0.45 / 0.65	2.30 / 2.80	-
2S140	0.27 / 0.37	0.15 / 0.35	0.45 / 0.70	0.025 P 0.020 S	0.50 / 0.80	0.45 / 0.65	2.30 / 2.80	-

Chemically similar British Specifications BS.970 Pt2.
Weight %	C	Si	Mn	P+S max	Cr	Mo	Ni	Other
817M40	0.36 / 0.44	0.10 / 0.35	0.45 / 0.70	0.040 P 0.050 S	1.00 / 1.40	0.20 / .35	1.30 / 1.70	-
EN24	0.35 / 0.45	0.10 / 0.35	0.45 / 0.70	-	0.90 / 1.40	0.20 / .35	1.30 / 1.80	-

Other Chemically similar Specifications
Weight %	C	Si	Mn	P+S max	Cr	Mo	Ni	Other
UNI 30NiCrMo12	0.27 / 0.35	0.40 max	0.50 / 0.80	0.035	0.60 / 1.00	0.30 / 0.60	2.60 / 3.20	-

SPECIFICATIONS

S140 is available in Bar.

TYPICAL MECHANICAL PROPERTIES

S140
Treatment	Tensile Strength Rm, N/MM²	Proof Stress Rp 0.2, N/MM²	Elongation in 5.65√Cross Sectional Area (%)	Hardness HB
Solution Annealed	-	-	-	248 max
Hardened and Tempered	1080 / 1280	880	10	311 / 388

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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