DIN 1712-3 Grade 3.0385 O – Premium Pure Aluminium for High Conductivity

Superpure aluminium Extremely pure aluminum material with particularly high electrical conductivity. This material is very well anodically oxidisable (high gloss surfaces), has however only small mechanical strength. It is badly splinter-giving to work on (smearing), however well weldable and well solderable. Forming capacity and corrosion behaviour in sour environment are very good. Application: compressed gas tanks, chemical and food industry, household article, reflectors, trim, costume jewelry, corroding volume, electrolytic capacitors, connector lugs.

Properties

General

Property	Temperature	Value	Condition	Related Standards	Shape
Density		2.7 g/cm³	O	EN 573-3, EN 1301
	20.0 °C	2.7 g/cm³	O	DIN 1712-3, EN 573-3, EN 573-4	Wire

Mechanical

Property	Temperature	Value	Condition	Related Standards	Shape	Comment
Elastic modulus		70.0 GPa	O	EN 573-3, EN 1301
	20.0 °C	72.0 GPa	O	DIN 1712-3, EN 573-3, EN 573-4	Wire
Elongation		25.0 %	O	EN 573-3, EN 1301
	20.0 °C	20.0 %	O	DIN 1712-3, EN 573-3, EN 573-4	Wire	A100
	20.0 °C	25.0 %	O	DIN 1712-3, EN 573-3, EN 573-4	Wire	A10
Hardness, Brinell	20.0 °C	15.0 [-]	O	DIN 1712-3, EN 573-3, EN 573-4	Wire
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	O	DIN 1712-3, EN 573-3, EN 573-4	Wire
Tensile strength		70.0 MPa	O	EN 573-3, EN 1301
	20.0 °C	40.0 MPa	O	DIN 1712-3, EN 573-3, EN 573-4	Wire

Thermal

Property	Temperature	Value	Condition	Related Standards	Shape
Coefficient of thermal expansion	-50 °C	2.18e-05 1/K	O	EN 573-3, EN 1301, DIN 1712-3, EN 573-4	Wire
	-50.0 °C	2.18e-05 1/K	O	EN 573-3, EN 1301, DIN 1712-3, EN 573-4	Wire
	20 °C	2.18e-05 1/K	O	EN 573-3, EN 1301, DIN 1712-3, EN 573-4	Wire
	20 °C	2.35e-05 1/K	O	EN 573-3, EN 1301
	20 °C	2.45e-05 1/K	O	EN 573-3, EN 1301, DIN 1712-3, EN 573-4	Wire
	20 °C	2.55e-05 1/K	O	EN 573-3, EN 1301, DIN 1712-3, EN 573-4	Wire
	100 °C	2.35e-05 1/K	O	EN 573-3, EN 1301
	100.0 °C	2.36e-05 1/K	O	DIN 1712-3, EN 573-3, EN 573-4	Wire
	200 °C	2.45e-05 1/K	O	EN 573-3, EN 1301, DIN 1712-3, EN 573-4	Wire
	200.0 °C	2.45e-05 1/K	O	EN 573-3, EN 1301, DIN 1712-3, EN 573-4	Wire
	300 °C	2.55e-05 1/K	O	EN 573-3, EN 1301, DIN 1712-3, EN 573-4	Wire
	300.0 °C	2.55e-05 1/K	O	EN 573-3, EN 1301, DIN 1712-3, EN 573-4	Wire
Melting point		660.0 °C	O	EN 573-3, EN 1301
Specific heat capacity		900.0 J/(kg·K)	O	EN 573-3, EN 1301
	20.0 °C	900.0 J/(kg·K)	O	DIN 1712-3, EN 573-3, EN 573-4	Wire
Thermal conductivity		232 W/(m·K)	O	EN 573-3, EN 1301
	20.0 °C	215.0 - 227.0 W/(m·K)	O	DIN 1712-3, EN 573-3, EN 573-4	Wire

Electrical

Property	Temperature	Value	Condition	Related Standards	Shape
Electrical conductivity		37500000.0 - 37700000.0 S/m	O	EN 573-3, EN 1301
	20.0 °C	37600000.0 - 37800000.0 S/m	O	DIN 1712-3, EN 573-3, EN 573-4	Wire
Electrical resistivity		2.65e-08 - 2.67e-08 Ω·m	O	EN 573-3, EN 1301

Chemical properties

Property	Value	Condition	Related Standards	Shape
Aluminium	99.98 %	O	EN 573-3, EN 1301
Copper	0.003 %	O	DIN 1712-3, EN 573-3, EN 573-4, EN 1301	Wire
Iron	0.006 %	O	DIN 1712-3, EN 573-3, EN 573-4	Wire
	0.006 %	O	EN 573-3, EN 1301
Silicon	0.01 %	O	DIN 1712-3, EN 573-3, EN 573-4, EN 1301	Wire
Titanium	0.003 %	O	DIN 1712-3, EN 573-3, EN 573-4, EN 1301	Wire
Zinc	0.01 %	O	DIN 1712-3, EN 573-3, EN 573-4, EN 1301	Wire

Technological properties

Property
Brazing	Excellent
Workability	Excellent workability.

Property

Brazing

Excellent

Workability

Excellent workability.

High-Conductivity 3.0257 H1x Aluminium Alloy – DIN 1712-3 Standard EN 10208-2 Grade L290NB: High-Strength Normalized & Normalized Formed Steel for Flammable Media Pipelines

Metal