Unidal – 7019 flat-plate cake

Stand: Juni 2015 - Quelle: DIN EN 573-3 / EN 515 / DIN 17611:2011

1. Chemical composition
in the aftermath of DIN EN 573-3 (in % of the mass, rest AL)

Si Fe Cu Mn Mg Cr Zn Ti+Zr Remark Other elements
0,35 0,45 0,2 0,15-0,5 1,5-2,5 0,2 3,5-4,5 0,1-0,4

2. mechanical properties
in the aftermath of DIN EN 485-2 Sheets and plates (common conditions)

Condition Nominal thickness Tensile strength Plug-in limit Ultimate elongation Rigor
in mm Rm in MPa Rp0,2 in MPa in % (min.) HBS
over up to min max min max A50 A
T651 8 30 410 350 8
30 50 400 340 8
50 80 390 330 8
Physical properties General properties
(Guide values for 20° C)
Density of g/cm3 2,75 Resistance to:
Solidification range ° C 580-630 – Sea water 4
Electrical conductivity MS/m 19-23 – Weather conditions 3
Thermal conductivity W/(mK) 135-150 Hot formability 2
Therm. linear expansion- – extrusion presses
Coeffizient 10-6/K 23,6 – Drop forging
Modulus of elasticity N/mm2 71.000 – Open die forging
Weldability Surface treatment
Fusion welding Protection anodizing 2
– Gas Anodizing (decorative) 4
– WIG 2 Painting/Coating 3
– MIG 2
Resistance welding 2 Contact with food no
Machinability 2

3. Main application / Special features:
Robot parts, transfer plates, printing machine parts, defence technology, welded constructions.
Unidal combines a stress-free precision plate with highest strength values.
Best surface finishing results.

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