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→5.1.4.3 Copper-Nickel-Zinc Alloys (German Silver)
<figtable id="tab:tab5.12">'''Table 5.12: Mechanical Properties of Copper-Nickel-Zinc Alloys''' {| class="twocolortable" style="text-align: left; font-size: 12px"|-!Material!Hardness<br />Condition!Tensile Strength R<sub>m</sub><br />[MPa]!0,2 teile% Yield Strength<br />R<sub>p02</sub><br />[MPa]!Elongation<br />A<sub>50</sub><br />[%]!Vickers<br />Hardness<br />HV!Bend Radius<sup>1)</sup><br />perpendicular to<br />rolling direction!Bend Radius<sup>1)</sup><br />parallel to<br />rolling direction!Spring Bending<br />Limit σ<sub>FB</sub><br />[MPa]!Spring Fatigue<br />Limit σ<sub>BW</sub><br />[MPa]|-|CuNi12Zn24|R 360<br />R 430<br />R 490<br />R 550<br />R ≥ 610|360 - 430<br />430 - 510<br />490 - 580<br />550 - 640<br />≥ 580|≤ 230<br />≥ 230<br />≥ 400<br />≥ 480<br />≥ 580|35<br />8<br />6<br />3<br />2|80 - 110<br />110 - 150<br />150 - 180<br />170 - 200<br />≥ 190|0 x t<br />0 x t<br />0 x t<br />0 x t|0 x t<br />0 x t<br />0 x t<br />0 x t|480|210|-|CuNi18Zn20|R 380<br />R 450<br />R 500<br />R 580<br />R ≥ 640|380 - 450<br />450 - 520<br />500 - 590<br />580 - 670<br />≥ 640|≤ 250<br />≥ 250<br />≥ 410<br />≥ 510<br />≥ 600|27<br />9<br />5<br />2|85 - 115<br />115 - 160<br />160 - 190<br />180 - 210<br />≥ 220|0 x t<br />0 x t<br />0 x t<br />0 x t|0 x t<br />0 x t<br />0 x t<br />0 x t|520|220|-|CuNi18Zn27|R 390<br />R 470<br />R 540<br />R 600<br />R ≥ 700|390 - 470<br />470 - 540<br />540 - 630<br />600 - 700<br />≥ 700|≤ 280<br />≥ 280<br />≥ 450<br />≥ 550<br />≥ 680|30<br />11<br />5<br />2|90 - 120<br />120 - 170<br />170 - 200<br />190 - 220<br />≥ 220|0 x t<br />0 x t<br />0 x t<br />0 x t|0 x t<br />0 x t<br />0 x t<br />1 x t|550|250|}</figtable><sup>1)</sup> t: Strip thickness max. 0.5 mm
<xr id="fig:Copper rich region of the ternary copper-nickel-zinc phase diagram with indication of the more commonly available german silver materials"/> Fig. 5.14: Copper rich region of the ternary copper-nickel-zinc phase diagram with indication of the more commonly available german silver materials
