EN 12451 Grade CuZn28Sn1As O50

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Description

CuZn28Sn1As (CW706R former identification: CuZn28Sn1) is an unhardenable copper alloy. High hardness and strength parameter are achievable by cold forming only. Tin increases corrosion resistance and improves sliding qualities. CuZn28Sn1As is dezincification resistant and resistant to river and industrial water. Processing properties: warm forming: good cold forming: moderately machinability: moderately hard soldering: moderately soft soldering: very good TIG-welding: good burnishing: very good This special brass material is predominantly applicated in the form of tubes for freshwater carrying pipes or for heat-exchanger. To the operating conditions applies that the content of solute substances in cooling water is not allowed to exceed 0,1% and the pH-value for water is not allowed to decrease below 7,0. In the case of corrosion attack due to sedimentations tubes made of CW706R are more resistant than tubes of binary copper-zinc alloys. The material is applicable for water speeds up to 2m/s. Further application for bottoms and plates for condenser and other heat-transformer, ribbed tubes as well as for cooler in on shore appliances.

Related Standards

Equivalent Materials

Diese Materialdaten wurden von WIAM zur Verfügung gestellt

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Eigenschaften

Allgemein

Property	Temperature	Value
Dichte	20.0 °C	8.56 g/cm³ Show Material materials with Dichte of 8.56 g/cm³

Mechanisch

Property	Temperature	Value
Dehnung	20.0 °C	55 % Show Material materials with Dehnung of 55 %
Elastizitätsmodul	20.0 °C	110 GPa Show Material materials with Elastizitätsmodul of 110 GPa
Härte, Vickers	20.0 °C	60 [-] Show Material materials with Härte, Vickers of 60 [-]
Schubmodule	20.0 °C	41 GPa Show Material materials with Schubmodule of 41 GPa
Streckgrenze Rp 0,2	20.0 °C	100 MPa Show Material materials with Streckgrenze Rp 0,2 of 100 MPa
Zugfestigkeit	20.0 °C	320 MPa Show Material materials with Zugfestigkeit of 320 MPa

Thermisch

Property	Temperature	Value	Comment
Koeffizient der thermischen Ausdehnung	200.0 °C	1.95E-5 1/K Show Material materials with Koeffizient der thermischen Ausdehnung of 1.95E-5 1/K
Schmelzpunkt		875 - 1075 °C Show Material materials with Schmelzpunkt of 875 - 1075 °C	Typical for Wrought Copper Brass
Spezifische Wärmekapazität	20.0 °C	377 J/(kg·K) Show Material materials with Spezifische Wärmekapazität of 377 J/(kg·K)
Wärmeleitfähigkeit	20.0 °C	109 W/(m·K) Show Material materials with Wärmeleitfähigkeit of 109 W/(m·K)

Elektrisch

Property	Temperature	Value
Elektrische Leitfähigkeit	20.0 °C	1.41E+7 S/m Show Material materials with Elektrische Leitfähigkeit of 1.41E+7 S/m
spezifischer Widerstand	20.0 °C	7.1E-8 Ω·m Show Material materials with spezifischer Widerstand of 7.1E-8 Ω·m

Chemical properties

Property	Value
Arsen	0.02 - 0.035 % Show Material materials with Arsen of 0.02 - 0.035 %
Blei	0.07 % Show Material materials with Blei of 0.07 %
Eisen	0.07 % Show Material materials with Eisen of 0.07 %
Kupfer	70 - 72.5 % Show Material materials with Kupfer of 70 - 72.5 %
Mangan	0.1 % Show Material materials with Mangan of 0.1 %
Nickel	0.1 % Show Material materials with Nickel of 0.1 %
Phosphor	0.01 % Show Material materials with Phosphor of 0.01 %
Zinn	0.9 - 1.3 % Show Material materials with Zinn of 0.9 - 1.3 %

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