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Stanal-40A, AA2015, EN AW-2015, AlCuMgSn無鉛環(huán)保鋁合金 高強度鋁合金 易切削鋁合金

 
材質(zhì) : 無鉛環(huán)保鋁合金
品牌 : 德國
規(guī)格 : Stanal-40A
產(chǎn)品詳情

STANAL-40A is а lead-free alloy, developed in compliance with RoHS, and with very good processing properties and high mechanical properties. Short processing times even for complex part can be achieved when processing using chip extraction.

Features:
Good machinability.
Very good dimensional stability.
During machining thin-walled parts under high stress and at a temperature above 180 ° C the formation of cracks cannot be excluded.

Anodization
- Protective anodised good
- Decorative anodizing – good, with no guarantee of decorative properties (eg color ) , it is recommended to make tests in advance.

Corrosion resistance
- Good / Average - under normal atmospheric conditions
- Moderate / Low – when exposed to marine climate / saltwater / Corrosion resistance is comparable to that of the alloys of the 2000 series containing lead .
Corrosion resistance can be improved by anodizing.

Welding – - no / low.
weldability It is not suitable for mechanically stressed connecting elements.

Main applications

STANAL-40A is suitable for processing on automatic lathes , but also for the manufacture of small series and single pieces .

Physical characteristics
Density2.800
Modulus of elasticity62 000 MPa
Coefficient of thermal expansion23.0 μm/m-°C
Thermal conductivity125 - 140 W/mK
Electrical resistivity19 - 21 MS/m
Chemical composition
Bismuth, Bi, %≤ 0.4
Chromium, Cr, %≤ 0.15
Cooper, Cu, %3.9 ÷ 5.2
Iron, Fe, %≤ 0.80
Lead, Pb, %≤ 0.20
Magnesium, Mg, %0.3 ÷ 1.3
Manganese, Mn, %0.3 ÷ 1.0
Nickel, Ni, %≤ 0.20
Silicon, Si, %≤ 0.80
Tin, Sn, %0.7 ÷ 1.5
Titanium, Ti, %≤ 0.2
Zink, Zn, %≤ 0.7
Other, each, %≤ 0.05
Other, total, %≤ 0.15
Aluminium, AlRest to 100%
Mechanical properties
TemperT3T4
Ultimate Tensile Strenght, Rm, MPa370370
Yield Tensile Strenght, Rp0.2, MPa250250
Elongiation at Break, A%88
Hardness, HB110110


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