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ELBRODUR® N4 |
| ELBRODUR® N4 (CuZr) is a cold-worked electrode material having a high softening temperature and high electrical conductivity. Suitable for welding aluminium alloys and bronzes. |
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Nominal composition
Percentages are by weight:
Cu + Zr ≥ 99.9 %
Zr 0.15 %
Mechanical and Physical Properties
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Tensile strength Rm |
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MPa |
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≥ 400 |
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≥ 350 |
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≥ 300 |
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Yield strength Rp0.2 |
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MPa |
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≥ 360 |
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≥ 310 |
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≥ 250 |
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Elongation A5 |
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% |
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≥ 10 |
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≥ 12 |
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≥ 18 |
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Reduction of Area Z |
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% |
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≥ 60 |
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≥ 60 |
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≥ 60 |
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Hardness HBW 2.5/62.5 |
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≥ 125 |
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≥ 110 |
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≥ 90 |
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Hardness HV 30 |
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≥ 130 |
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≥ 115 |
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≥ 95 |
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Hardness HRB |
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≥ 68 |
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≥ 60 |
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≥ 54 |
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El. conductivity |
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MS/m |
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49 - 54 |
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50 - 54 |
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50 - 54 |
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El. conductivity |
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% IACS |
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84 - 93 |
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86 - 93 |
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86 - 93 |
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Forms, Sizes and Tempers
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Rods
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Dia. (mm)
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A |
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B |
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C |
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5 |
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16 |
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Rods
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Width a/f (mm)
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B |
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C |
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5 |
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Bar
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Further sizes and special grades on request.
Coils/wire up to 10 mm O.D. or width a/f.
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