Designation
DIN: | AlMg4,5Mn / EN AW - 5083 |
AFNOR: | A - G4,5MC |
UNI: | 7790 |
AISI: | -
|
Chemical composition:
Si | 0.40 |
Fe
| 0.40 |
Cu
| 0.10 |
Mn
| 0.40-1.00
|
Mg
| 4.00-4.90
|
Cr
| 0.05-0.25 |
Zn | 0.25 |
Ti
| 0.15
|
Strength:
■ 68 - 75 HB
(≈ 230- 260 N/mm²)
● min. 78 HB
(≈ min. 270 N/mm²)
Thermal conductivity at 100 °C:
110-140 W/m K
Character:
not hardenable, homogenised, annealed aluminium alloy with particularly good machining and welding properties; excellent dimensional stability; ideally suited for anodising, hard chromium plating and chemical nickel plating; very high resistance to corrosion
Density: 2.66 kg/dm3
Coefficient of thermal expansion: 24.2 10-6 m/mK
Max. temperature permanent/short term: 90/110 °C
Application:
plates for mould tools, rotary tables, machined components for machine
and jig construction, moulds for prototypes and foamed parts
Treatment by
possible
Polishing, EDM, etching
Ideally suited:
Machining, welding
Heat treatment:
Note: Subsequent heat treatment may lead to
a deterioration of the mechanical properties.
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