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B179 712.2

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America ASTM B179712.2 砂型铸件、永久型模铸件和压模铸件用铝合金锭及其熔化成形方式 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: B179712.2 / B179 712.2
Category Grade Standard Region/Area Standard Content
Metals B179 712.2 ASTM B179 America 砂型铸件、永久型模铸件和压模铸件用铝合金锭及其熔化成形方式

Chemical composition(mass fraction)(wt.%) of the B179 712.2

Element Min Max Similar
Zn 5.0000 6.5000 -
Ti 0.1500 0.2500 -
Si - 0.1500 -
Others Total - 0.2000 -
Others each - 0.0500 -
Mn - 0.1000 -
Mg 0.5000 0.6590 -
Fe - 0.4000 -
Cu - 0.2500 -
Cr 0.4000 0.6000 -
Al - - -

Mechanical Properties of steel grade B179 712.2

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)
493 (≥) 121 (≥) 42 44 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 134

Physical Properties of steel grade B179 712.2

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
21 - -     0.13 -  
447 384 - 12.3 224   -  
619 - 21 43.2   141 342

Heat Treatment of steel grade B179 712.2

Heat treated : 1794°C - 1467°C

Technological Curves of steel grade B179 712.2

Cross Reference Table (Equivalent Grade) of B179 712.2

Grade Standard Country Application
ASTM 5140
AISI 201
AISI 202
1.2767
17-4PH
AISI 1052
AISI 416Se
AISI 1330
AISI 205 Stainless Steel
AISI A10
AISI A2
AISI A3
AISI A4
1.0036
1.0037
SAE J403
UNS G10100
AMS 4924
ASTM A36
Electrode 100S-1
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