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England B.S. S114 Specification for aircraft material. Manganese-molybdenum steel (55/65 tonf/sq in: limiting ruling section 2½ inches) and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: S114 / S 114
Category Grade Standard Region/Area Standard Content
Metals S 114 BS 2S 114 England Specification for aircraft material. Manganese-molybdenum steel (55/65 tonf/sq in: limiting ruling section 2½ inches)

Chemical composition(mass fraction)(wt.%) of the S 114

Element Min Max Similar
Si 0.1000 0.3500 -
S - 0.0450 -
P - 0.0400 -
Mo 0.2200 0.3200 -
Mn 1.3000 1.7000 -
C 0.3200 0.4000 -

Mechanical Properties of steel grade S 114

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV/Ku (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
531 (≥) 158 (≥) 33 32 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 111

Physical Properties of steel grade S 114

Temperature
(°C)
Modulus of elasticity
(GPa)
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)
Specific thermal capacity
(J/kg·°C)
Specific electrical resistivity
(Ω mm²/m)
Density
(kg/dm³)
Poisson’s coefficient, ν
43 - -     0.13 -  
825 557 - 32.3 244   -  
644 - 11 11.2   444 324

Heat Treatment of steel grade S 114

Heat treated : 1729°C - 1345°C

Technological Curves of steel grade S 114

Cross Reference Table (Equivalent Grade) of S 114

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