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Hungary MSZ S91 Unalloyed tool steel and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: S91 / S 91
Category Grade Standard Region/Area Standard Content
Metals S 91 MSZ 4354 Hungary Unalloyed tool steel

Chemical composition(mass fraction)(wt.%) of the S 91

Element Min Max Similar
Si 0.1500 0.3500 -
S - 0.0250 -
P - 0.0250 -
Ni - 0.2500 -
Mn 0.1500 0.3500 -
Cu - 0.2500 -
Cr - 0.2000 -
C 0.8500 0.9400 -

Mechanical Properties of steel grade S 91

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)
215 (≥) 128 (≥) 14 11 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 214

Physical Properties of steel grade S 91

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
32 - -     0.34 -  
349 611 - 31.3 113   -  
135 - 14 14.2   221 223

Heat Treatment of steel grade S 91

Heat treated : 1152°C - 1985°C

Technological Curves of steel grade S 91

Cross Reference Table (Equivalent Grade) of S 91

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