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EN 573-3 Grade 3.1355 T3510 Aluminum Alloy – Aircraft‑Grade Strength & Machinability

Aluminum DIN 3.1355, known for its use in aircraft industry, is an alloy that offers excellent strength. When in the annealed condition it is readily formed and has good machinability. Though it has a relatively low level of corrosion resistance, it can be machined to a high finish.

Properties

General

PropertyValueConditionRelated Standards

Density

2.77 g/cm³

T3510

EN 573-3, EN 754, EN 755

2.78 g/cm³

T3510

EN 573-3, EN 754, EN 755

Mechanical

PropertyValueConditionRelated StandardsComment

Elastic modulus

73.0 GPa

T3510

EN 573-3, EN 754, EN 755

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

27.4 GPa

T3510

EN 573-3, EN 754, EN 755

Tensile strength

395.0 MPa

T3510

EN 573-3, EN 755

400.0 MPa

T3510

EN 573-3, EN 755

420.0 MPa

T3510

EN 573-3, EN 754, EN 755

440.0 MPa

T3510

EN 573-3, EN 755

450.0 MPa

T3510

EN 573-3, EN 755

Thermal

PropertyTemperatureValueConditionRelated Standards

Coefficient of thermal expansion

-50 °C

2.11e-05 1/K

T3510

EN 573-3, EN 754, EN 755

20 °C

2.11e-05 1/K

T3510

EN 573-3, EN 754, EN 755

20 °C

2.2899999999999998e-05 1/K

T3510

EN 573-3, EN 754, EN 755

20 °C

2.3199999999999998e-05 1/K

T3510

EN 573-3, EN 754, EN 755

20 °C

2.38e-05 1/K

T3510

EN 573-3, EN 754, EN 755

20 °C

2.4699999999999997e-05 1/K

T3510

EN 573-3, EN 754, EN 755

100 °C

2.2899999999999998e-05 1/K

T3510

EN 573-3, EN 754, EN 755

100 °C

2.3199999999999998e-05 1/K

T3510

EN 573-3, EN 754, EN 755

200 °C

2.38e-05 1/K

T3510

EN 573-3, EN 754, EN 755

300 °C

2.4699999999999997e-05 1/K

T3510

EN 573-3, EN 754, EN 755

Melting point

505.0 - 640.0 °C

T3510

EN 573-3, EN 754, EN 755

505.0 - 635.0 °C

T3510

EN 573-3, EN 754, EN 755

Specific heat capacity

875.0 J/(kg·K)

T3510

EN 573-3, EN 754, EN 755

Thermal conductivity

121.0 - 193.0 W/(m·K)

T3510

EN 573-3, EN 754, EN 755

130.0 - 150.0 W/(m·K)

T3510

EN 573-3, EN 754, EN 755

Electrical

PropertyValueConditionRelated Standards

Electrical conductivity

17000000.0 - 29000000.0 S/m

T3510

EN 573-3, EN 754, EN 755

18000000.0 - 21000000.0 S/m

T3510

EN 573-3, EN 754, EN 755

Electrical resistivity

3.45e-08 - 5.88e-08 Ω·m

T3510

EN 573-3, EN 754, EN 755

4.76e-08 - 5.56e-08 Ω·m

T3510

EN 573-3, EN 754, EN 755

Chemical properties

PropertyValueConditionRelated Standards

Chromium

0.1 %

T3510

EN 573-3, EN 754, EN 755

Copper

3.8 - 4.9 %

T3510

EN 573-3, EN 754, EN 755

Iron

0.50 %

T3510

EN 573-3, EN 754, EN 755

Magnesium

1.2 - 1.8 %

T3510

EN 573-3, EN 754, EN 755

Manganese

0.3 - 0.9 %

T3510

EN 573-3, EN 754, EN 755

Silicon

0.5 %

T3510

EN 573-3, EN 754, EN 755

Titanium

0.15 %

T3510

EN 573-3, EN 754, EN 755

Zinc

0.25 %

T3510

EN 573-3, EN 754, EN 755

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: poor

Workability

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


Metal

  1. EN 573-3 Grade 3.1325 T3510 – Complete Aluminium Specification & Properties
  2. EN 573-3 Grade 3.1645 T3510: Technical Specifications of a High-Performance Aluminium Alloy
  3. EN 573-3 Grade 3.1355 F Aluminum Alloy – Aircraft-Grade Strength & Machinability
  4. EN 573-3 Grade 3.1355 H18 – High‑Strength Aluminum Alloy for Aerospace Applications
  5. EN 573-3 Grade 3.1355 O3 Aluminum Alloy – Aircraft‑Grade Strength & Machinability
  6. AW-2030 T3510 – Premium Age-Hardenable AlCu Alloy (EN 573-3)
  7. EN 573-3 Grade 3.1355 H13 Aluminum – High Strength, Formability & Machinability
  8. EN 573-3 Grade 3.1255 T3510: High-Strength Precipitation Hardened Aluminum Alloy
  9. EN 573-3 Grade 3.1355 T3510 Aluminum Alloy – Aircraft‑Grade Strength & Machinability
  10. EN 573-3 Grade 3.1355 T8 Aluminum Alloy – High Strength, Excellent Machinability