L 155 (United Kingdom / B.S.) Material Properties

Material group: Nonferrous Alloys / Aluminium
Country/Standard: United Kingdom / B.S.

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Mechanical Properties

Temperature

0 - 30°C
PROPERTY / VALUE
Yield Strength, Rp0.2 val1
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MPa view details
Tensile Strength 280 MPa view details
Elongation, A 4 % view details
Brinell Hardness (HB) 85 view details
Yield Strength, Rp0.2 val1
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ksi view details
Tensile Strength 40.6 ksi view details
Elongation, A 4 % view details
Brinell Hardness (HB) 85 view details

Physical Properties

Temperature

0 - 30°C
PROPERTY / VALUE
Modulus of Elasticity 69 — 79 GPa view details
Density 2.6 — 2.9 kg/dm³ view details
Poisson Coefficient 0.33 view details
Modulus of Elasticity 10 E+03 — 11.5 E+03 ksi view details
Density 0.094 — 0.105 lb/in³ view details
Poisson Coefficient 0.33 view details

Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
Al
VALUE
Remainder
UNIT
%
CAS NUMBER
7429-90-5
CRITERIA
Cu
VALUE
3.8 – 4.5
UNIT
%
CAS NUMBER
7440-50-8
CRITERIA
Fe
VALUE
≤ 0.25
UNIT
%
CAS NUMBER
7439-89-6
CRITERIA
Mg
VALUE
val1
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UNIT
%
CAS NUMBER
7439-95-4
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 each
VALUE
val1
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UNIT
%
CAS NUMBER
CRITERIA
Other total
VALUE
val1
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UNIT
%
CAS NUMBER
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
Ti
VALUE
val1
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UNIT
%
CAS NUMBER
7440-32-6
CRITERIA
Zn
VALUE
val1
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UNIT
%
CAS NUMBER
7440-66-6

BS L 155: 1977 / Specification for ingots and castings of aluminium-copper-silicon alloy (solution treated and artificially aged) (Cu 4, Si 1)

Heat Treatments

  • The castings and test samples shall be heat treated together as follows: Solution treat at temperature of 510 +/- 5°C for not less than 16h; Quench into water at a temperature of 50°C to 70°C or in a polymer quenchant at a temperature not greater than 30°C; Artificialy age by heating at a temperature of 140 +/- 10°C for not less than 16h; Cooling in the air.