ER4043 H19/H14 Aerospace Aluminum Wire
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ER4043 H19/H14 Aerospace Aluminum Wire

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AMS, AS9100, OHSAS 18001


BS N21 Tig and Mig Wire,

AMS 4190 Welding wire (AWS 5.10),

ТУ 1-002-069-2011,

BCAR A8-2,

DEF STAN 02-854,


aerospace certification

Chalco is a manufacturer with advantages and capabilities in the field of aerospace materials. The company has advanced research and development, detection and analysis instruments.

Specification of 4043 aluminum wire

Alloy 4043
Temper H19/H14/H12
Diameter 5.0mm-76.0mm
Wire shape Round line, flat line, square line
Packaging method Packed in coil, spool, etc.
4043 aluminum wire stock Diameter: 0.8mm, 0.9mm, 1.0mm, 1.2mm, 1.6mm, etc.

Chemical composition of 4043 aluminum wire

Element Value
Al ≥96.0%
Si 4.5-6.0
Fe ≤0.8
Cu ≤0.30
Mn ≤0.05
Mg ≤0.05
Zn ≤0.10
Ti ≤0.20

Material properties for 4043 H19/H14/H12 aluminium wire

Mechanical properties 4043 H19 4043 H14 4043 H12
Yield strength 290 MPa 165 MPa 125 MPa
Tensile strength 310 MPa 190 MPa 155 MPa
Elongation 4% 10% 15%
Hardness 75 HRB 55 HRB 50 HRB

What are the characteristics of 4043 aluminum wire?

Good welding performance

4043 aviation aluminum wire is an aluminum-silicon alloy with good welding performance, which is suitable for argon arc welding, gas shielded welding, electric arc welding and other welding processes.

Excellent processing performance

4043 aviation aluminum wire can be processed into aluminum materials of different shapes and specifications through various processing processes such as drawing and extrusion.

Good corrosion resistance

4043 aviation aluminum wire has good corrosion resistance and can be used in various environments such as atmosphere, water and oil.

Suitable for low temperature environment

4043 aviation aluminum wire can be used in the ultra-low temperature environment of -270°C, which is very suitable for manufacturing low-temperature equipment and aerospace components.

Suitable for high temperature environment

4043 aviation aluminum wire can be fully recycled and has little impact on the environment, meeting the requirements of sustainable development.

features of 4043 aerospace aluminum wire

Thermal properties of 4043 aluminum wire

Thermal properties
Melting point (°C) 577-633
Coefficient of thermal expansion (10-6/K) 21.7-23.5(20-100°C)
Thermal conductivity (W/(m·K)) 121-140(20°C)
Linear expansion coefficient (10-6/K) 23.5(20-100°C)

Application of 4043 aluminum wire

4043 H19 aluminium wire

Its main use in the aerospace field is as a welding material. Because of its excellent welding performance and good mechanical properties, it is widely used in the manufacturing and maintenance of aerospace equipment and components.

Some specific applications include:

  • Welding of aircraft structural parts, such as the connection of fuselage, wing, inlet and hood.
  • Manufacture and repair of avionics equipment and instruments, such as navigation systems, communication equipment and flight instruments.
  • Welding of aluminum alloy pipes, gas tanks, fuel tanks and other components for aerospace.
  • Welding of aluminum alloy sheets for aerospace, such as materials used for aircraft shells.

4043 H14 aluminium wire

  • Aircraft shell, aviation engine parts, fuel tank, oil pump and sensor shell, etc.
  • It is widely used in welding and assembly of aircraft structures.
  • The 4043 aviation aluminum wire in H14 status can also be used in aerospace electronic equipment, wires and cables and other applications.

4043 H12 aluminium wire

It is mainly used for welding and riveting in aerospace equipment. These equipment include the fuselage, engine, flap, horizontal stabilizer and other components of the aircraft, as well as the launch rocket, orbiter and satellite of the spacecraft.

In addition, 4043 H12 aluminum wire can also be used for the connection of aerospace electronic equipment and the manufacturing of transmission lines.

application of 4043 aerospace aluminum wire

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