STOL® 95 R540

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Description

It is a CuCrZr alloy that can be hardened by cold forming and by precipitation of CuCrZr - phases during a heat treatment. It has good bendability, excellent hot and cold forming properties, a high strength and a good corrosion resistance. Due to the CrZr-precipitations the relaxation properties, even at temperatures up to 250°C are excellent. The electrical and thermal conductivity is excellent. Welding, soldering and brazing properties are good too. The alloy is registered in the US by EPA to have good antimicrobial properties.

Equivalent Materials

Los datos sobre este material han sido proporcionados por Matmatch.

A menos que se indique lo contrario, todas las medidas corresponden a condiciones de temperatura ambiente. A menos que se indique lo contrario, se utilizan las unidades del SI.
Las normas armonizadas son similares a uno o varios estándares del proveedor. Es posible que algunas normas armonizadas se ajusten al estándar original, mientras que otras pueden quedar fuera de su alcance.

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Propiedades

General

PropertyTemperatureValue

Densidad

23.0 °C

8.9 g/cm³

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Mecánica

PropertyTemperatureValueComment

Dureza Vickers

23.0 °C

160 - 200 [-]

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Elongación A50

23.0 °C

4 %

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Límite elástico Rp 0,2

23.0 °C

500 MPa

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Módulo elástico

23.0 °C

137 GPa

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cold formed

Plegabilidad 180 ° bidireccional

23.0 °C

2.5 [-]

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r = x t, t <0.5mm

Plegabilidad 180 ° en peso bruto

23.0 °C

3 [-]

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r = x t, t <0.5mm

Plegabilidad 90 ° bidireccional

23.0 °C

2 [-]

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r = x t, t <0.5mm

Plegabilidad 90 ° en peso bruto

23.0 °C

2 [-]

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r = x t, t <0.5mm

Resistencia a la tracción

23.0 °C

540 - 630 MPa

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Aplicaciones térmicas

PropertyTemperatureValueComment

Calor específico

23.0 °C

381 J/(kg·K)

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Coeficiente de dilatación térmica

300.0 °C

1.8E-5 1/K

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for 20°C to the mentioned temperature

Conductividad térmica

23.0 °C

330 W/(m·K)

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Eléctrico

PropertyTemperatureValue

Conductividad eléctrica

23.0 °C

5.00E+7 - 5.20E+7 S/m

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Specific Electrical conductivity

86 % IACS

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Chemical properties

PropertyValueComment

Circonio

0.05 - 0.25 %

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Cobre

Balance

Cromo

0.2 - 1.2 %

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Hierro

0.1 %

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max.

Silicona

0.1 %

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max.

Technological properties

Property
Application areas

Automotive: Switches and Relays, Contacts, Connectors, Terminals, Press fits, Hybrid Cars. Electrical: Switches and Relays, Contacts, Connectors, Terminals, Press fits, Components for the electrical industry, Stamped parts, Semiconductor Components, Junction Boxes, Photovoltaic Systems.

Brazing

Excellent

Cold Forming

Good

Corrosion properties

STOL® 95 is resistant to pure water vapour and non oxidizingacids and alkalis as well as neutral saline solutions. The material is insensitive to stress corrosion cracking.

Heat Treatment

Temper: R540

Machining

Rating 20, less suitable

Other

This alloy is in accordance with RoHS 2002/96/CE for electric & electronic equipments and 2002/53/CE for automotive industry. It is suitable for high voltage applications as hybrid cars or photovoltaics.

Plating

Electroplating is excellent

Welding

Gas Shielded Arc Welding: Excellent, Laser Welding: Fair

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