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9 SMnPb 28

Switzerland SNV 9SMnPb28 Free-cutting steels and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 9SMnPb28 / 9 SMnPb 28
Category Grade Standard Region/Area Standard Content
Metals 9 SMnPb 28 SNV 10650 Switzerland Free-cutting steels

Chemical composition(mass fraction)(wt.%) of the 9 SMnPb 28

Element Min Max Similar
Si - 0.0500 -
S 0.2400 0.3200 -
Pb 0.1500 0.3000 -
P - 0.1000 -
Mn 0.9000 1.3000 -
C - 0.1400 -

Mechanical Properties of steel grade 9 SMnPb 28

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)
945 (≥) 489 (≥) 44 13 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 143

Physical Properties of steel grade 9 SMnPb 28

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 -  
479 531 - 44.3 141   -  
132 - 34 32.2   211 123

Heat Treatment of steel grade 9 SMnPb 28

Heat treated : 1526°C - 1316°C

Technological Curves of steel grade 9 SMnPb 28

Cross Reference Table (Equivalent Grade) of 9 SMnPb 28

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