DIN 1725-1 Grade 3.1645 T3

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Description

The material AlCuMgPb is a free-cutting alloy (boring and turning quality). It is the most used aluminum free-cutting alloy. The addition of Pb causes splinter breaking and permits thereby higher cutting velocities and cutting depths with troublefree splinter removal. This material reached in the cold-hardened condition relatively high strength grades (F 34 and/or F 37), hot ageing is not usual, but its corrosion resistance is insufficient. For this reason a surface treatment is necessary for the corrosion protection. The alloy is weldable only under certain conditions. In addition the strength loss within the range of the welding seam, connected with welding, impairs the use of AlCuMgPb in welded structures. Only as bars and pipes standardised (DIN 1747 part of 1 and part of 2 and/or DIN 1746 part of 1 and part of 2). Heat treatment for hardening: solution annealing: 480 to 490 °C quenching in water to 65 °C cold ageing: 5 to 8 d at ambient temperatures Application: For bearing constructions (loaded statically according to DIN 4113), in the apparatus and tank construction for heat exchangers, for compressed gas bottles, technical flow pressed parts, in the automobile engineering for tank and silo trucks, for dump truck hollows, buses, body parts for safety-related parts, wheels, superstructures in mechanical engineering for devices, tools (baseplates, head and stamp retaining plates as well as guide plates), machine tables, hydraulic/pneumatics, shaft couplings (forgings), roller pipes, brake disks and brake drums (with squirted wear course), joining elements (screws according to DIN 267 T 18, rivets) in food industry (including commercial devices), in the building of rail-mounted vehicles for railroad car doors, stroke sun roofs, wheel-center disks, axle box case, car boxes, in shipbuilding (including mechanisms) for the trunk for superstructures, sail masts, equipment for radar, in the mining industry, in the building industry for roller shutter, roll gates, for camping furniture, as metal goods (building fittings, table-ware, reflectors etc.) In mechanical engineering for milling heads for the wood processing, for wheels (toothed belts) as well as for shaft couplings (also flexible).

Related Standards

Equivalent Materials

This material data has been provided by WIAM,AluKey.

"Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
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

Property	Temperature	Value	Condition	Related Standards	Shape
Density		2.85 g/cm³ Show Material materials with Density of 2.85 g/cm³	T3	EN 573-3, EN 754
	20.0 °C	2.85 g/cm³ Show Material materials with Density of 2.85 g/cm³	T3	DIN 1725-1, EN 573-3, EN 573-4	Rod, Tube

Mechanical

Property	Temperature	Value	Condition	Related Standards	Shape	Comment
Elastic modulus		72.5 GPa Show Material materials with Elastic modulus of 72.5 GPa	T3	EN 573-3, EN 754
Elongation		5.0 % Show Material materials with Elongation of 5.0 %	T3	EN 573-3, EN 754		A50
		6.0 % Show Material materials with Elongation of 6.0 %	T3	EN 573-3, EN 754		A100
		7.0 % Show Material materials with Elongation of 7.0 %	T3	EN 573-3, EN 754		A100
	20.0 °C	5.0 % Show Material materials with Elongation of 5.0 %	T3	DIN 1725-1, EN 573-3, EN 573-4	Rod	A10
	20.0 °C	7.0 % Show Material materials with Elongation of 7.0 %	T3	DIN 1725-1, EN 573-3, EN 573-4	Rod
	20.0 °C	8.0 % Show Material materials with Elongation of 8.0 %	T3	DIN 1725-1, EN 573-3, EN 573-4	Tube	A10
	20.0 °C	10.0 % Show Material materials with Elongation of 10.0 %	T3	DIN 1725-1, EN 573-3, EN 573-4	Tube
	20.0 °C	10.0 % Show Material materials with Elongation of 10.0 %	T3	DIN 1725-1, EN 573-3, EN 573-4	Tube	A10
	20.0 °C	12.0 % Show Material materials with Elongation of 12.0 %	T3	DIN 1725-1, EN 573-3, EN 573-4	Tube
Hardness, Brinell	20.0 °C	90.0 [-] Show Material materials with Hardness, Brinell of 90.0 [-]	T3	DIN 1725-1, EN 573-3, EN 573-4	Rod
	20.0 °C	100.0 [-] Show Material materials with Hardness, Brinell of 100.0 [-]	T3	DIN 1725-1, EN 573-3, EN 573-4	Rod, Tube
Plane-Strain Fracture Toughnes		22.0 - 35.0 MPa·√m Show Material materials with Plane-Strain Fracture Toughnes of 22.0 - 35.0 MPa·√m				Typical for Wrought 2000 Series Aluminium
Poisson's ratio		0.33 [-] Show Material materials with Poisson's ratio of 0.33 [-]				Typical for Wrought 2000 Series Aluminium
Shear modulus		27.3 GPa Show Material materials with Shear modulus of 27.3 GPa	T3	EN 573-3, EN 754
Tensile strength		340.0 MPa Show Material materials with Tensile strength of 340.0 MPa	T3	EN 573-3, EN 754
		370.0 MPa Show Material materials with Tensile strength of 370.0 MPa	T3	EN 573-3, EN 754
	20.0 °C	340.0 MPa Show Material materials with Tensile strength of 340.0 MPa	T3	DIN 1725-1, EN 573-3, EN 573-4	Rod
	20.0 °C	360.0 MPa Show Material materials with Tensile strength of 360.0 MPa	T3	DIN 1725-1, EN 573-3, EN 573-4	Tube
	20.0 °C	370.0 MPa Show Material materials with Tensile strength of 370.0 MPa	T3	DIN 1725-1, EN 573-3, EN 573-4	Rod, Tube

Thermal

Property	Temperature	Value	Condition	Related Standards	Shape
Coefficient of thermal expansion	20 °C	2.3e-05 1/K Show Material materials with Coefficient of thermal expansion of 2.3e-05 1/K	T3	EN 573-3, EN 754
	100 °C	2.3e-05 1/K Show Material materials with Coefficient of thermal expansion of 2.3e-05 1/K	T3	EN 573-3, EN 754
	100.0 °C	2.4e-05 1/K Show Material materials with Coefficient of thermal expansion of 2.4e-05 1/K	T3	DIN 1725-1, EN 573-3, EN 573-4	Rod, Tube
Melting point		507.0 - 650.0 °C Show Material materials with Melting point of 507.0 - 650.0 °C	T3	EN 573-3, EN 754
Specific heat capacity		860.0 J/(kg·K) Show Material materials with Specific heat capacity of 860.0 J/(kg·K)	T3	EN 573-3, EN 754
	20.0 °C	860.0 J/(kg·K) Show Material materials with Specific heat capacity of 860.0 J/(kg·K)	T3	DIN 1725-1, EN 573-3, EN 573-4	Rod, Tube
Thermal conductivity		130.0 - 160.0 W/(m·K) Show Material materials with Thermal conductivity of 130.0 - 160.0 W/(m·K)	T3	EN 573-3, EN 754
	20.0 °C	116.0 - 168.0 W/(m·K) Show Material materials with Thermal conductivity of 116.0 - 168.0 W/(m·K)	T3	DIN 1725-1, EN 573-3, EN 573-4	Rod, Tube

Electrical

Property	Temperature	Value	Condition	Related Standards	Shape
Electrical conductivity	20.0 °C	18000000.0 - 22000000.0 S/m Show Material materials with Electrical conductivity of 18000000.0 - 22000000.0 S/m	T3	DIN 1725-1, EN 573-3, EN 573-4, EN 754	Rod, Tube
Electrical resistivity		4.55e-08 - 5.56e-08 Ω·m Show Material materials with Electrical resistivity of 4.55e-08 - 5.56e-08 Ω·m	T3	EN 573-3, EN 754

Chemical properties

Property	Value	Condition	Related Standards	Shape
Bismuth	0.2 % Show Material materials with Bismuth of 0.2 %	T3	DIN 1725-1, EN 573-3, EN 573-4, EN 754	Rod, Tube
Chromium	0.1 % Show Material materials with Chromium of 0.1 %	T3	DIN 1725-1, EN 573-3, EN 573-4, EN 754	Rod, Tube
Copper	3.3 - 4.6 % Show Material materials with Copper of 3.3 - 4.6 %	T3	DIN 1725-1, EN 573-3, EN 573-4, EN 754	Rod, Tube
Iron	0.8 % Show Material materials with Iron of 0.8 %	T3	DIN 1725-1, EN 573-3, EN 573-4	Rod, Tube
	0.80 % Show Material materials with Iron of 0.80 %	T3	EN 573-3, EN 754
Lead	0.8 - 1.5 % Show Material materials with Lead of 0.8 - 1.5 %	T3	DIN 1725-1, EN 573-3, EN 573-4	Rod, Tube
Magnesium	0.4 - 1.8 % Show Material materials with Magnesium of 0.4 - 1.8 %	T3	DIN 1725-1, EN 573-3, EN 573-4, EN 754	Rod, Tube
Manganese	0.1 % Show Material materials with Manganese of 0.1 %	T3	EN 573-3, EN 754
	0.5 - 1.0 % Show Material materials with Manganese of 0.5 - 1.0 %	T3	DIN 1725-1, EN 573-3, EN 573-4	Rod, Tube
Nickel	0.2 % Show Material materials with Nickel of 0.2 %	T3	DIN 1725-1, EN 573-3, EN 573-4, EN 754	Rod, Tube
Silicon	0.8 % Show Material materials with Silicon of 0.8 %	T3	DIN 1725-1, EN 573-3, EN 573-4, EN 754	Rod, Tube
Tin	0.2 % Show Material materials with Tin of 0.2 %	T3	DIN 1725-1, EN 573-3, EN 573-4, EN 754	Rod, Tube
Titanium	0.2 % Show Material materials with Titanium of 0.2 %	T3	DIN 1725-1, EN 573-3, EN 573-4, EN 754	Rod, Tube
Zinc	0.8 % Show Material materials with Zinc of 0.8 %	T3	DIN 1725-1, EN 573-3, EN 573-4, EN 754	Rod, Tube

Technological properties

Property
Anodizing	Protective: poor
Brazing	friction soldering: sufficient
Corrosion properties	Seawater: poor, weathering: poor
Workability	Bending / Spinning (cold): sufficient / -, Deep drawing / upsetting (Condition) - / sufficient

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