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Part of injection mould
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Forging
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Erosion
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Material designation SCHMELZMETALL
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HOVADUR® K 150
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Description of material
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HOVADUR® K 150 is a precipitation hardenable copper alloy. In hardened condition, the alloy shows especially high
electrical and thermal conductivity.
Furthermore, the alloy is characterized by high resistance to heat.
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Material properties
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Chemical composition in % of weight (nominal values)
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CR
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Zr
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Fe
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Si
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others total
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Cu
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0.8
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0.08
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< 0.08
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< 0.1
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< 0.2
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Remainder
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Agreed properties at 20 °C
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Condition'
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Hot formed and hardened
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Cold formed and hardened
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Hardness Brinell HB
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*) 1)
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115-150
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135-175
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Electrical conductivity
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MS/m
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44- 51
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44- 51
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| *) In case of different opinions, hardness is calculated as the average of 3 randomly located measurings (section). |
| 1) This property depends on the dimension. |
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Associated properties at 20 °C
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Condition
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Hot formed and hardened
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Cold formed and hardened
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Tensile strength
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1) 2)
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N/mm² (MPa)
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350-470
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420-550
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0.2% yield strength
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1) 2)
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N/mm² (MPa)
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250-350
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310-450
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Elongation (A5)
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1) 2)
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%
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15- 25
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8- 20
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1) Strength values will only be proved if ordered by the customer.
2) This property depends on the dimension. |
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Material information (nominal values)
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Elastic modulus
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N/mm² (MPa)
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125,000
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Softening temperature
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°C
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500
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Specific weight
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g/cm³
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8.9
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Thermal conductivity
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W/mK
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310-340
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(Average 20 °C-300 °C)
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Thermal expansion coefficient
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x 10-6/°K
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17.0
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(Average 20 °C-300 °C)
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Melting interval
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°C
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1075-1085
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Processing instructions
Hot forming
HOVADUR® K 150 is not intended for hot forming.
Advice: After a hot forming executed by the customer, the properties of HOVADUR® K 150 will normally no
longer be achieved.
Cold forming
Even in hardened condition, HOVADUR® K 150 is suited for a certain cold forming.
Heat treatment
A heat treatment of HOVADUR® K 150 is not recommended. In general, it changes the agreed properties which will no
longer be achieved afterwards.
Machining
HOVADUR® K 150 is very well suited for machining. We recommend hard metal cutting tools with highly positive cutting
geometry.
For drilling, attention must be paid to good removal of chips. Cooling with emulsion is recommended. Eroding is
possible, but it is rather difficult due to the material’s high electrical conductivity. Polishing is possible, too.
Joining
HOVADUR® K 150 is suitable for soft as well as hard soldering. Concerning hard soldering a (small) loss in hardness is to
be expected. Very low melting silver brazing should be used. Welding of HOVADUR® K 150 is possible to a limited
extent.
Surface may be coated according to all usual procedures.
Application examples
Cooling plates, heat conducting parts and moulds with low mechanical strain for tempering of moulds for plastic
injection moulds.
Moulds and cooling inserts for metal casting. Covers for centrifugal casting moulds.
Documents:
Details of the properties or application of materials are for descriptive purposes only. Confirmation of suitability with regard to specific properties or application require written
agreement. |
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Material data sheet