S156 Alloy Steel - BS S82
Typical Applications
Helicopter and aircraft gears
Motorsport gears
S156 is a high strength VAR steel with a tensile strength of between 1320-1520 MPa.
Material is supplied in the normalised and softened / annealed condition and develops a hard wear resistance case after surface treatment.
Related Products
Technical specification
Related Specifications
16NCD17
W.Nr 1.6722
W.Nr 1.6723
BS S82
Specific Gravity
7.8 g/cm3
Chemical Composition (WT %)
Min
Max
C
0.14
0.18
Si
0.10
0.35
Mn
0.25
0.55
P
-
0.015
S
-
0.012
Cr
1.0
1.4
Mo
0.20
0.30
Ni
3.8
4.3
Fe
Bal
-
Typical Mechanical Properties
Round Bar
0.2% Yield Strength
MPA
427
Tensile Strength
MPA
651
Elongation
%
27
Reduction of area
%
62.5
Hardness
HBW
179
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