DIN 1725-1 Grade 3.1325 T4

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Description

The alloy AlCuMg1 belongs to the type of alloy (AlCuMg type), which found of the aluminum wrought machine materials as first in the technology use. Alloys of this type are cold and warm hardenable. They reach thereby high mechanical strength and are relatively heat resistant even in soft condition. In the cold-hardened condition this alloy reaches strength grades to maximally F 41. Warm ageing is not in practice usual for reasons of the corrosion resistance worsening this condition. Even in the cold-hardened condition a surface protection is necessary. It is disadvantageous, that even the smallest mistake in heat treatment results in decreasing of strength as well as the bad ability for hot forming and difficult weldability of this alloy. Its particularly good splinter-giving workability is remarkable, whereby screws and rivets are suitable for joining elements. Due to the high strength the alloy AlCuMg1 is particularly well suitable for construction units, which are exposed to higher static loading. Heat treatment for hardening: solution annealing: 495 to 505 °C, quenching in water cold ageing: 5 to 8 d at ambient temperature hot ageing: 16 to 24 h at 180 to 195 °C Application: In mechanical engineering (including building of forms) for machine tables, hydraulic turned parts, for tools, devices (baseplates, head and stamp retaining plates as well as guide plates). Furthermore as joining elements (screws, solid rivets), in the automobile engineering as bumpers, as axle box cases, as body and safety-related parts and in the transportation for air freight containers as well as in the aircraft construction.

Related Standards

Equivalent Materials

This material data has been provided by WIAM,AluKey.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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Properties

General

PropertyTemperatureValueConditionRelated StandardsShape

Density

20.0 °C

2.8 g/cm³

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T4

DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1

Forging, Wire

2.8 g/cm³

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T4

EN 573-3, EN 1301, EN 485, EN 755

Mechanical

PropertyTemperatureValueConditionRelated StandardsShapeComment

Bending Fatigue Strength

130.0 MPa

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T4

EN 573-3, EN 485, EN 755

Bending angle 180°

5.0 °/t

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T4

EN 573-3, EN 485

3.0 °/t

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T4

EN 573-3, EN 485

Bending angle 90°

5.0 °/t

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T4

EN 573-3, EN 485

8.0 °/t

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T4

EN 573-3, EN 485

3.0 °/t

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T4

EN 573-3, EN 485

Elastic modulus

20.0 °C

65.0 - 73.5 GPa

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T4

DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1

Forging, Wire

72.5 GPa

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T4

EN 573-3, EN 1301, EN 485, EN 755

Elongation

20.0 °C

10.0 %

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T4

DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1

Forging

18.0 %

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T4

EN 573-3, EN 1301

20.0 °C

4.0 %

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T4

DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1

Wire

A100

6.0 %

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T4

EN 573-3, EN 485

A100

7.0 %

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T4

EN 573-3, EN 485, EN 755

A100

4.0 %

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T4

EN 573-3, EN 485

A100

2.0 %

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T4

EN 573-3, EN 485

A100

12.0 %

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T4

EN 573-3, EN 485, EN 755

A100

9.0 %

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T4

EN 573-3, EN 755

A100

10.0 %

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T4

EN 573-3, EN 755

A100

8.0 %

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T4

EN 573-3, EN 755

A100

20.0 °C

8.0 %

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T4

DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1

Wire

A10

15.0 %

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T4

EN 573-3, EN 485

A50

13.0 %

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T4

EN 573-3, EN 485

A50

14.0 %

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T4

EN 573-3, EN 485

A50

10.0 %

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T4

EN 573-3, EN 755

A50

8.0 %

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T4

EN 573-3, EN 755

A50

Hardness, Brinell

20.0 °C

95.0 [-]

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T4

DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1

Forging

20.0 °C

100.0 [-]

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T4

DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1

Wire

105.0 [-]

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T4

EN 573-3, EN 485

110.0 [-]

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T4

EN 573-3, EN 485

101.0 [-]

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T4

EN 573-3, EN 485

111.0 [-]

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T4

EN 573-3, EN 485

108.0 [-]

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T4

EN 573-3, EN 485

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Plane-Strain Fracture Toughnes

22.0 - 35.0 MPa·√m

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Typical for Wrought 2000 Series Aluminium

Poisson's ratio

0.33 [-]

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Typical for Wrought 2000 Series Aluminium

Shear modulus

20.0 °C

26.0 - 28.5 GPa

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T4

DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1

Forging, Wire

27.2 GPa

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T4

EN 573-3, EN 1301, EN 485, EN 755

Shear strength

20.0 °C

260.0 MPa

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T4

DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1

Wire

Tensile strength

20.0 °C

380.0 MPa

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T4

DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1

Forging, Wire

20.0 °C

436.0 MPa

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T4

DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1

100.0 °C

394.0 MPa

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T4

DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1

150.0 °C

281.0 MPa

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T4

DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1

200.0 °C

155.0 MPa

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T4

DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1

250.0 °C

84.0 MPa

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T4

DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1

300.0 °C

46.0 MPa

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T4

DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1

370.0 °C

32.0 MPa

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T4

DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1

380.0 MPa

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T4

EN 573-3, EN 1301, EN 755

360.0 MPa

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T4

EN 573-3, EN 485, EN 755

370.0 MPa

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T4

EN 573-3, EN 485, EN 755

390.0 MPa

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T4

EN 573-3, EN 485, EN 755

350.0 MPa

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T4

EN 573-3, EN 485

330.0 MPa

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T4

EN 573-3, EN 485

385.0 MPa

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T4

EN 573-3, EN 485

300.0 MPa

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T4

EN 573-3, EN 485

400.0 MPa

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T4

EN 573-3, EN 755

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Thermal

PropertyTemperatureValueConditionRelated StandardsShape

Coefficient of thermal expansion

100 °C, 20 °C

2.3e-05 1/K

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T4

EN 573-3, EN 1301, EN 485, EN 755

Melting point

512.0 - 650.0 °C

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T4

EN 573-3, EN 1301, EN 485, EN 755

Specific heat capacity

20.0 °C

921.0 J/(kg·K)

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T4

DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1

Forging, Wire

Thermal conductivity

20.0 °C

130.0 - 200.0 W/(m·K)

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T4

DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1, EN 1301, EN 485, EN 755

Forging, Wire

Electrical

PropertyTemperatureValueConditionRelated StandardsShape

Electrical conductivity

20.0 °C

18000000.0 - 28000000.0 S/m

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T4

DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1, EN 1301, EN 485, EN 755

Forging, Wire

Electrical resistivity

3.57e-08 - 5.56e-08 Ω·m

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T4

EN 573-3, EN 1301, EN 485, EN 755

Chemical properties

PropertyValueConditionRelated StandardsShape

Chromium

0.1 %

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T4

DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1, EN 1301, EN 485, EN 755

Forging, Wire

Copper

3.5 - 4.5 %

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T4

DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1, EN 1301, EN 485, EN 755

Forging, Wire

Iron

0.7 %

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T4

DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1

Forging, Wire

0.70 %

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T4

EN 573-3, EN 1301, EN 485, EN 755

Magnesium

0.4 - 1.0 %

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T4

DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1, EN 1301, EN 485, EN 755

Forging, Wire

Manganese

0.4 - 1.0 %

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T4

DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1, EN 1301, EN 485, EN 755

Forging, Wire

Silicon

0.2 - 0.8 %

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T4

DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1, EN 1301, EN 485, EN 755

Forging, Wire

Zinc

0.25 %

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T4

DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1, EN 1301, EN 485, EN 755

Forging, Wire

Technological properties

Property
Anodizing

decorative: not suitable, Protective: good

Brazing

hard brazing (with flux/ without flux): not suitable / not suitable, friction soldering: acceptable, soft brazing with flux: not suitable

Corrosion properties

Seawater: poor, weathering: sufficient

Workability

Bending / Spinning (cold): good / acceptable, Impact extrusion (cold): acceptable, Deep drawing / upsetting (Condition) acceptable (O) / acceptable (O)