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Nominal composition
Percentages by weight:
Co 2.2 %
Be 0.55 %
Ni + Fe ≤ 0.5 %
Cu rem.
perm. other elements
max. 0.5 %
Mechanical and Physical Properties
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A |
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B |
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Tensile strength Rm |
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MPa |
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740 - 880 |
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690 - 860 |
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Yield strength Rp0.2 |
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MPa |
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610 - 740 |
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570 - 690 |
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Elongation A5 |
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% |
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10 - 18 |
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12 -20 |
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Reduction of Area Z |
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% |
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25 - 45 |
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15 - 40 |
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Hardness HBW 2.5/187.5 |
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230 - 270 |
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220 - 260 |
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Hardness HV 30 |
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240 - 300 |
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230 - 290 |
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Hardness HRB |
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99 - 106 |
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97 - 104 |
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El. conductivity |
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MS/m |
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26 - 32 |
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26 - 32 |
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El. conductivity |
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% IACS |
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45 - 55 |
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45 - 55 |
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Forms, Sizes and Tempers
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Rods
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Width a/f (mm)
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A |
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B |
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5 |
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Bar
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Further sizes and special grades on request.
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