Präzisionswalzplatten
UNIDAL®
TECHNICAL DATA SHEET
Alloy´s Characteristics
Alloy
EN AW 7019 [AlZn4Mg2Mn], Sondertyp
Type of Alloy
aushärtbar
Temper
T651
Surface
feinstgefräst, Rautiefe Ra 0,4µm, beidseitig foliert
Physical Properties
Density
[g/cm³]
2,75
Module of elasticity
[GPa]
~ 71
.
Electrical conductivity
[m / Ω mm²] 19 - 23
Coefficient of thermal expansion
[K
Thermal conductivity
[W/m K]
-1 .
-6
10 ]
.
.
Specific heat capacity
[J/kg K]
Mechanical Properties
Yield strength Rp0,2
23,6
135 -150
875
typical values
[MPa]
365
Ultimate tensile strength Rm[MPa]
420
Elongation A50
[%]
12
Hardness HBW
[2,5/62,5]
130
Processing Characteristics
1)
Dimensional stability/Residuel stress
2 -3
Formability
6
2)
Machinability
1
Anodising
Anodising
Erodability
1
Polishability
1-2
Weldability
(Gas/TIG/MIG/Resistance/EB)
4/5/5/3/3
Etching
1
Contact with food
(according to DIN EN 602)
nein
Corrosion resistance
3/ 2/4
(seawater/ weather/ stress cracking)
Use at temperatures
(max°C long/short termes)
2/6/1
90 / 120
Tolerances
3)
Thickness inFlatness
Thickness
Width & Length
[mm]
[mm]
[mm]
[mm]
<=15
<=0,5
± 0,1
DIN ISO 2768-1m
> 15
<=0,25
± 0,1
DIN ISO 2768-1m
Available Stock
Plate Sizes
1520 x 3020 mm bei Dicken von 8-80 mm
1) comparing valuation rating from 1 (very good) to 6 (inapplicable)
2) Only technical anodizing - no warranty towards optical demands
3) surface flatness for whole plates is measured with a special digital flatness ruler with a measuring length of 1 meter
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