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7178

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Brazil NBR 7178 Aluminium and aluminium alloys —Chemical composition and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 7178 / 7178
Category Grade Standard Region/Area Standard Content
Metals 7178 ABNT NBR ISO 209 Brazil Aluminium and aluminium alloys —Chemical composition

Chemical composition(mass fraction)(wt.%) of the 7178

Element Min Max Similar
Ti+Cr - 0.2500 -
Mn - 0.3000 -
Si - 0.4000 -
Cr 0.1800 0.2800 -
Cu 1.6000 2.4000 -
Ti - 0.2000 -
Al - - -
Zn 6.3000 7.3000 -
Mg 2.4000 3.1000 -
Fe - 0.5000 -
Others each - 0.0500 -
Others Total - 0.1500 -
Mn - 0.3000 -
Si - 0.4000 -
Cr 0.1800 0.2800 -
Cu 1.6000 2.4000 -
Ti - 0.2000 -
Al - - -
Zn 6.3000 7.3000 -
Mg 2.4000 3.1000 -
Fe - 0.5000 -
Others each - 0.0500 -
Others Total - 0.1500 -
Ti+Cr - 0.2500 -
Mn - 0.3000 -
Si - 0.4000 -
Cr 0.1800 0.2800 -
Cu 1.6000 2.4000 -
Ti - 0.2000 -
Al - - -
Zn 6.3000 7.3000 -
Mg 2.4000 3.1000 -
Fe - 0.5000 -
Others each - 0.0500 -
Others Total - 0.1500 -
Mn - 0.3000 -
Si - 0.4000 -
Cr 0.1800 0.2800 -
Cu 1.6000 2.4000 -
Ti - 0.2000 -
Al - - -
Zn 6.3000 7.3000 -
Mg 2.4000 3.1000 -
Fe - 0.5000 -
Others each - 0.0500 -
Others Total - 0.1500 -

Mechanical Properties of steel grade 7178

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)
383 (≥) 881 (≥) 23 12 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 122

Physical Properties of steel grade 7178

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 - -     0.32 -  
718 474 - 41.3 224   -  
415 - 44 33.2   224 141

Heat Treatment of steel grade 7178

Heat treated : 1864°C - 1945°C

Technological Curves of steel grade 7178

Cross Reference Table (Equivalent Grade) of 7178

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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