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B 179 A242.2

Description

USA SAE B 179 (2011), B 179 A242.2 Specialsteel Aluminum Alloys in Ingot and Molten Forms for Castings from All Casting Processes and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: B 179 A242.2
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel B 179 A242.2 Precipitation-Hardening SAE USA Aluminum Alloys in Ingot and Molten Forms for Castings from All Casting Processes

Chemical composition(mass fraction)(wt.%) of the B 179 A242.2

C Si Mn P S Ni Cr Al Cu Ti Fe N Mo W V
≤0.22 ≤0.40 ≤0.75 ≤ ≥ ≤ ≥ ≤0.75 ≤12.50 ≤ ≥ ≤ ≥ ≤ ≥ ≤remaining ≤ ≥ ≤1.00 ≤1.00 ≤0.22

Mechanical Properties of steel grade B 179 A242.2

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)
129 (≥) 492 (≥) 41 31 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 113

Physical Properties of steel grade B 179 A242.2

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
44 - -     0.14 -  
228 182 - 12.3 242   -  
946 - 13 22.2   444 231

Heat Treatment of steel grade B 179 A242.2

Heat treated : 1791°C - 1267°C

Technological Curves of steel grade B 179 A242.2

Cross Reference Table (Equivalent Grade) of B 179 A242.2

Relevant standard of B 179 A242.2

B 179 (2011) Aluminum Alloys in Ingot and Molten Forms for Castings from All Casting Processes B-179-(2011).pdf

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