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England B.S. S111 Specification for aircraft material. Nickel-chromium-tungsten valve steel and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: S111 / S 111
Category Grade Standard Region/Area Standard Content
Metals S 111 BS 2S 111 England Specification for aircraft material. Nickel-chromium-tungsten valve steel

Chemical composition(mass fraction)(wt.%) of the S 111

Element Min Max Similar

Mechanical Properties of steel grade S 111

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)
879 (≥) 488 (≥) 41 22 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 442

Physical Properties of steel grade S 111

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
13 - -     0.23 -  
216 287 - 31.3 433   -  
249 - 12 13.2   324 223

Heat Treatment of steel grade S 111

Heat treated : 1662°C - 1834°C

Technological Curves of steel grade S 111

Cross Reference Table (Equivalent Grade) of S 111

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