EN 12452 Grade CuZn20Al2As O60

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Description

CuZn20Al2As (CW702R former identification: CuZn20Al2) is an unhardenable copper alloy. High hardness and strength values are achievable by cold forming only. Strength properties, corrosion resistance and oxidation resistance are increasable by Al-addition. CuZn20Al2As is seawater and dezincification resistant, and insensitive to stress corrosion in stress-relieved condition. Processing properties: warm forming: moderately cold forming: moderately machinability: moderately hard soldering: moderately soft soldering: unfavorable TIG-welding: good burnishing: very good The material is predominantly suitable for smooth and ribbed tubes and for heat-exchanger in condenser construction as well as for seawater pipelines. It is due to its favorable corrosion and erosion behaviour a reliable material in cooling water with salinities of more than 0,2%, e.g. in brack and seawater at water speed up to 2,5 m/s. In the case of a natural protective oxide film damage occurs a self-healing process.

Related Standards

Equivalent Materials

Diese Materialdaten wurden von WIAM zur Verfügung gestellt

Alle Daten beziehen sich auf Raumtemperatur soweit nicht anderweitig spezifiziert. SI Einheiten werden verwendt soweit nicht anderweitig spezifiziert.
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Eigenschaften

Allgemein

PropertyTemperatureValue

Dichte

20.0 °C

8.33 g/cm³

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Mechanisch

PropertyTemperatureValue

Dehnung

20.0 °C

40 - 55 %

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100.0 °C

50 - 56 %

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150.0 °C

56 %

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200.0 °C

43 - 50 %

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250.0 °C

22 %

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300.0 °C

42 %

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400.0 °C

23 %

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500.0 °C

35 %

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Elastizitätsmodul

20.0 °C

110 - 112 GPa

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50.0 °C

110 - 130 GPa

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100.0 °C

108 - 128 GPa

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150.0 °C

107 - 126 GPa

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200.0 °C

106 - 123 GPa

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250.0 °C

105 - 120 GPa

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300.0 °C

118 GPa

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350.0 °C

115 GPa

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400.0 °C

112 GPa

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450.0 °C

109 GPa

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500.0 °C

105 GPa

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Flächenreduzierung

100.0 °C

69 %

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150.0 °C

63 %

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200.0 °C

37 %

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250.0 °C

23 %

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Härte, Brinell

20.0 °C

65 - 95 [-]

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Härte, Vickers

20.0 °C

60 - 110 [-]

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Schubmodule

20.0 °C

42 GPa

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Streckgrenze Rp 0,2

20.0 °C

89 - 150 MPa

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100.0 °C

180 MPa

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150.0 °C

180 MPa

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200.0 °C

65 - 175 MPa

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250.0 °C

170 MPa

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300.0 °C

60 MPa

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400.0 °C

55 MPa

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Streckgrenze Rp 1,0

100.0 °C

195 MPa

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150.0 °C

195 MPa

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200.0 °C

195 MPa

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250.0 °C

190 MPa

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Zugfestigkeit

20.0 °C

340 - 420 MPa

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100.0 °C

395 - 410 MPa

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150.0 °C

385 MPa

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200.0 °C

365 - 375 MPa

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250.0 °C

310 MPa

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300.0 °C

355 MPa

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400.0 °C

280 MPa

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500.0 °C

130 MPa

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Thermisch

PropertyTemperatureValueComment

Koeffizient der thermischen Ausdehnung

200.0 °C

1.85E-5 1/K

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Schmelzpunkt

875 - 1075 °C

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Typical for Wrought Copper Brass

Spezifische Wärmekapazität

20.0 °C

377 J/(kg·K)

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Wärmeleitfähigkeit

20.0 °C

100 W/(m·K)

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Elektrisch

PropertyTemperatureValue

Elektrische Leitfähigkeit

20.0 °C

1.34E+7 S/m

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spezifischer Widerstand

20.0 °C

7.5E-8 Ω·m

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Chemical properties

PropertyValue

Aluminium

1.8 - 2.3 %

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Arsen

0.02 - 0.06 %

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Blei

0.05 - 0.5 %

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Eisen

0.07 %

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Kupfer

76 - 79 %

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Magnesium

5E-3 %

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Mangan

0.1 %

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Nickel

0.1 %

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Phosphor

0.01 %

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