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SB-108 208.0

America ASME SB-108208.0 Specification for Aluminum-Alloy Permanent Mold Castings and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SB-108208.0 / SB-108 208.0
Category Grade Standard Region/Area Standard Content
Metals SB-108 208.0 ASME SB-108 America Specification for Aluminum-Alloy Permanent Mold Castings

Chemical composition(mass fraction)(wt.%) of the SB-108 208.0

Element Min Max Similar
Zn - 1.0000 -
Total Others - 0.0500 -
Ti - 2.5000 -
Si 2.5000 3.5000 -
Ni - 0.3500 -
Mn - 0.5000 -
Mg - 0.1000 -
Fe - 1.2000 -
Cu 3.5000 4.5000 -
Al - - -

Mechanical Properties of steel grade SB-108 208.0

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)
437 (≥) 146 (≥) 12 14 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 143

Physical Properties of steel grade SB-108 208.0

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
24 - -     0.42 -  
841 465 - 24.3 324   -  
953 - 14 31.2   331 223

Heat Treatment of steel grade SB-108 208.0

Heat treated : 1966°C - 1933°C

Technological Curves of steel grade SB-108 208.0

Cross Reference Table (Equivalent Grade) of SB-108 208.0

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