High-Conductivity DIN 1712-3 Grade 3.0257 H18 Aluminium Alloy – Optimal for Wiring Loops

Pure aluminium Electrical conductivity alloy according to DIN, ensured by the German electrotechnical commission for electro-technology with, also in accordance to DIN 40 501 part of 1 to part of 4. This material has a very good electrical and good thermal conductivity, however only relatively low mechanical strength. Forming capacity and chemical as well as weather proofness are very good. Application: Roll bond, z-bond, wiring loom-change with particularly high requirements.

Properties

General

Property	Temperature	Value	Condition	Related Standards	Shape
Density	20.0 °C	2.7 g/cm³	H18	DIN 1712-3, EN 573-3, EN 573-4	Wire, Rod, Flat

Mechanical

Property	Temperature	Value	Condition	Related Standards	Shape	Comment
Elastic modulus		68.0 - 70.0 GPa				Typical for Wrought 1000 Series Aluminium
Elongation	20.0 °C	1.0 %	H18	DIN 1712-3, EN 573-3, EN 573-4	Wire	A200
	20.0 °C	2.0 %	H18	DIN 1712-3, EN 573-3, EN 573-4	Wire	A100
	20.0 °C	3.0 %	H18	DIN 1712-3, EN 573-3, EN 573-4	Flat	A10
	20.0 °C	4.0 %	H18	DIN 1712-3, EN 573-3, EN 573-4	Rod	A10
	20.0 °C	4.0 %	H18	DIN 1712-3, EN 573-3, EN 573-4	Flat
	20.0 °C	5.0 %	H18	DIN 1712-3, EN 573-3, EN 573-4	Rod
Hardness, Brinell	20.0 °C	32.0 [-]	H18	DIN 1712-3, EN 573-3, EN 573-4	Rod
	20.0 °C	32.0 - 48.0 [-]	H18	DIN 1712-3, EN 573-3, EN 573-4	Flat
Plane-Strain Fracture Toughnes		22.0 - 35.0 MPa·√m				Typical for Wrought 1000 Series Aluminium
Poisson's ratio		0.33 [-]				Typical for Wrought 1000 Series Aluminium
Shear modulus	20.0 °C	25.0 - 26.5 GPa	H18	DIN 1712-3, EN 573-3, EN 573-4	Wire, Rod, Flat
Tensile strength	20.0 °C	130.0 - 180.0 MPa	H18	DIN 1712-3, EN 573-3, EN 573-4	Wire
	20.0 °C	130.0 MPa	H18	DIN 1712-3, EN 573-3, EN 573-4	Rod
	20.0 °C	130.0 - 170.0 MPa	H18	DIN 1712-3, EN 573-3, EN 573-4	Flat

Thermal

Property	Temperature	Value	Condition	Related Standards	Shape	Comment
Coefficient of thermal expansion		2.2e-05 - 2.5e-05 1/K				Typical for Wrought 1000 Series Aluminium
Melting point		645.0 - 660.0 °C				Typical for Wrought 1000 Series Aluminium
Specific heat capacity	20.0 °C	921.0 J/(kg·K)	H18	DIN 1712-3, EN 573-3, EN 573-4	Wire, Rod, Flat
Thermal conductivity	20.0 °C	230.0 W/(m·K)	H18	DIN 1712-3, EN 573-3, EN 573-4	Wire, Rod, Flat

Electrical

Property	Value	Comment
Electrical conductivity	33000000.0 - 38000000.0 S/m	Typical for Wrought 1000 Series Aluminium
Electrical resistivity	2.7e-08 - 3e-08 Ω·m	Typical for Wrought 1000 Series Aluminium

Chemical properties

Property	Value	Condition	Related Standards	Shape
Copper	0.02	H18	DIN 1712-3, EN 573-3, EN 573-4	Wire, Rod, Flat
Iron	0.4	H18	DIN 1712-3, EN 573-3, EN 573-4	Wire, Rod, Flat
Magnesium	0.05	H18	DIN 1712-3, EN 573-3, EN 573-4	Wire, Rod, Flat
Silicon	0.25	H18	DIN 1712-3, EN 573-3, EN 573-4	Wire, Rod, Flat
Zinc	0.05	H18	DIN 1712-3, EN 573-3, EN 573-4	Wire, Rod, Flat

Technological properties

Property
Brazing	Excellent
Workability	Excellent workability.

Property

Brazing

Excellent

Workability

Excellent workability.

DIN 1712‑3 Grade 3.0257 H12 – Premium Aluminium Alloy for High‑Performance Electrical Applications EN 573-3 Grade 3.0517 F Aluminum Alloy – Superior Corrosion Resistance & Versatile Fabrication

Metal