QAl9-4 (China / GB) Material Properties

Other designations:
Material group: Nonferrous Alloys / Copper
Country/Standard: China / GB

Data updates

Latest Update: 2021-02
Total number of updates: 8
Update History:
2019-11 2018-11 2018-02 2015-12 2015-08 2014-12 2014-09

Mechanical Properties

Temperature

0 - 30°C
PROPERTY / VALUE
Yield Strength, Rp0.2 val1
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MPa view details
Tensile Strength 450 MPa view details
Elongation, A 11 % view details
Brinell Hardness (HB) 110 — 200 view details
Yield Strength, Rp0.2 val1
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ksi view details
Tensile Strength 65.3 ksi view details
Elongation, A 11 % view details
Brinell Hardness (HB) 110 — 200 view details

Physical Properties

Temperature

≤ 0°C
0 - 30°C
100 - 300°C
≥ 300°C
PROPERTY / VALUE
Modulus of Elasticity 100 — 150 GPa view details
Density val1
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kg/dm³ view details
Coefficient of Thermal Expansion (CTE) val1
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10-6/°C view details
Coefficient of Thermal Expansion (CTE) val1
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10-6/°C view details
Coefficient of Thermal Expansion (CTE) val1
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10-6/°C view details
Thermal Conductivity 58.6 W/(m∙°C) view details
Heat Capacity val1
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J/(kg∙°C) view details
Electrical Resistivity 0.123 Ω∙mm²/m view details
Electrical Conductivity val1
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S/m view details
Modulus of Elasticity 14.5 E+03 — 21.8 E+03 ksi view details
Density val1
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lb/in³ view details
Coefficient of Thermal Expansion (CTE) val1
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10-6/°F view details
Coefficient of Thermal Expansion (CTE) val1
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10-6/°F view details
Coefficient of Thermal Expansion (CTE) val1
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10-6/°F view details
Thermal Conductivity 33.9 BTU/(h∙ft∙°F) view details
Heat Capacity val1
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BTU/(lb∙°F) view details
Electrical Resistivity 204 E-06 Ω∙circular·mil/ft view details
Electrical Conductivity val1
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S/in view details

Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
Al
VALUE
8.0 – 10.0
UNIT
%
CAS NUMBER
7429-90-5
CRITERIA
Cu
VALUE
Remainder
UNIT
%
CAS NUMBER
7440-50-8
CRITERIA
Fe
VALUE
2.0 – 4.0
UNIT
%
CAS NUMBER
7439-89-6
CRITERIA
Mn
VALUE
val1
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UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
Ni
VALUE
val1
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UNIT
%
CAS NUMBER
7440-02-0
CRITERIA
Other
VALUE
val1
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UNIT
%
CAS NUMBER
CRITERIA
P
VALUE
val1
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UNIT
%
CAS NUMBER
7723-14-0
CRITERIA
Pb
VALUE
val1
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UNIT
%
CAS NUMBER
7439-92-1
CRITERIA
Si
VALUE
val1
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UNIT
%
CAS NUMBER
7440-21-3
CRITERIA
Sn
VALUE
val1
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UNIT
%
CAS NUMBER
7440-31-5
CRITERIA
Zn
VALUE
val1
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UNIT
%
CAS NUMBER
7440-66-6

GB/T 2059: 2017 / Copper and copper alloy strip

Heat Treatments

  • Forging temperature in the range: 850-900°C and relative forgeability 75%.