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DIN 1725-1 Grade 3.1255 T8 Aluminum Alloy – High Strength & Precision Machining

DIN 3.1255 is an alloy with strength, machinability and welding capabilities, Aluminum Alloy DIN 3.1255 is an excellent option. It is a precipitation hardening alloy that maintains strength after heat treatment.

Properties

General

PropertyTemperatureValueConditionRelated StandardsShape

Density

20.0 °C

2.8 g/cm³

T8

DIN 1725-1, EN 573-3, EN 573-4

Profile, Rod, Sheet, Tube

Mechanical

PropertyTemperatureValueConditionRelated StandardsShapeComment

Elastic modulus

20.0 °C

72.0

T8

DIN 1725-1, EN 573-3, EN 573-4

Profile, Rod, Sheet, Tube

Elongation

20.0 °C

6.0 %

T8

DIN 1725-1, EN 573-3, EN 573-4

Profile, Rod, Tube

A10

20.0 °C

6.0 %

T8

DIN 1725-1, EN 573-3, EN 573-4

Rod

20.0 °C

7.0 %

T8

DIN 1725-1, EN 573-3, EN 573-4

Rod

A10

20.0 °C

7.0 %

T8

DIN 1725-1, EN 573-3, EN 573-4

Profile, Rod, Sheet, Tube

20.0 °C

8.0 %

T8

DIN 1725-1, EN 573-3, EN 573-4

Rod

Hardness, Brinell

20.0 °C

120.0 [-]

T8

DIN 1725-1, EN 573-3, EN 573-4

Rod

20.0 °C

125.0 [-]

T8

DIN 1725-1, EN 573-3, EN 573-4

Rod, Sheet

20.0 °C

130.0 [-]

T8

DIN 1725-1, EN 573-3, EN 573-4

Tube

20.0 °C

135.0 [-]

T8

DIN 1725-1, EN 573-3, EN 573-4

Profile

Plane-Strain Fracture Toughnes

22.0 - 35.0 MPa·√m

Typical for Wrought 2000 Series Aluminium

Poisson's ratio

0.33 [-]

Typical for Wrought 2000 Series Aluminium

Shear modulus

26.0 - 27.5 GPa

Typical for Wrought 2000 Series Aluminium

Tensile strength

20.0 °C

430.0 MPa

T8

DIN 1725-1, EN 573-3, EN 573-4

Rod

20.0 °C

440.0 MPa

T8

DIN 1725-1, EN 573-3, EN 573-4

Rod

20.0 °C

450.0 MPa

T8

DIN 1725-1, EN 573-3, EN 573-4

Profile, Tube

20.0 °C

460.0 MPa

T8

DIN 1725-1, EN 573-3, EN 573-4

Rod, Sheet

Thermal

PropertyTemperatureValueConditionRelated StandardsShapeComment

Coefficient of thermal expansion

-50.0 °C

2.1e-05 1/K

T8

DIN 1725-1, EN 573-3, EN 573-4

Profile, Rod, Sheet, Tube

100.0 °C

2.28e-05 1/K

T8

DIN 1725-1, EN 573-3, EN 573-4

Profile, Rod, Sheet, Tube

200.0 °C

2.36e-05 1/K

T8

DIN 1725-1, EN 573-3, EN 573-4

Profile, Rod, Sheet, Tube

300.0 °C

2.46e-05 1/K

T8

DIN 1725-1, EN 573-3, EN 573-4

Profile, Rod, Sheet, Tube

Melting point

500.0 - 650.0 °C

Typical for Wrought 2000 Series Aluminium

Specific heat capacity

816.0 - 963.0 J/(kg·K)

Typical for Wrought 2000 Series Aluminium

Thermal conductivity

20.0 °C

140.0 - 200.0 W/(m·K)

T8

DIN 1725-1, EN 573-3, EN 573-4

Profile, Rod, Sheet, Tube

Electrical

PropertyTemperatureValueConditionRelated StandardsShapeComment

Electrical conductivity

20.0 °C

20000000.0 - 29000000.0 S/m

T8

DIN 1725-1, EN 573-3, EN 573-4

Profile, Rod, Sheet, Tube

Electrical resistivity

3.4e-08 - 6e-08 Ω·m

Typical for Wrought 2000 Series Aluminium

Chemical properties

PropertyValueConditionRelated StandardsShape

Chromium

0.1

T8

DIN 1725-1, EN 573-3, EN 573-4

Profile, Rod, Sheet, Tube

Copper

3.9 - 5.0 %

T8

DIN 1725-1, EN 573-3, EN 573-4

Profile, Rod, Sheet, Tube

Iron

0.7

T8

DIN 1725-1, EN 573-3, EN 573-4

Profile, Rod, Sheet, Tube

Magnesium

0.2 - 0.8 %

T8

DIN 1725-1, EN 573-3, EN 573-4

Profile, Rod, Sheet, Tube

Manganese

0.4 - 1.2 %

T8

DIN 1725-1, EN 573-3, EN 573-4

Profile, Rod, Sheet, Tube

Silicon

0.5 - 1.2 %

T8

DIN 1725-1, EN 573-3, EN 573-4

Profile, Rod, Sheet, Tube

Titanium

0.15

T8

DIN 1725-1, EN 573-3, EN 573-4

Profile, Rod, Sheet, Tube

Zinc

0.25

T8

DIN 1725-1, EN 573-3, EN 573-4

Profile, Rod, Sheet, Tube

Technological properties

Property
Workability

Moderate Workability


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