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Elmet Technologies

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Sandvik 8R70 Spring Wire
Categories: Metal; Ferrous Metal; Special-Purpose Steel

Material Notes: Sandvik 8R70 is a molybdenum-alloyed steel with very good corrosion resistance. The mechanical strength is somewhat lower than that of gusab T302.

Service temperature: -200 to 300°C (-330 to 570°F)

Information provided by Sandvik

EN 1.4571

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Physical PropertiesOriginal ValueComments
Density 8.00 g/cc
 
Mechanical PropertiesOriginal ValueComments
Tensile Strength, Ultimate 1080 - 1240 MPa
@Diameter 7.00 - 8.50 mm
 1730 - 1980 MPa
@Diameter 0.150 - 0.200 mm
Modulus of Elasticity 180 GPaas delivered
 185 GPaas tempered
Poissons Ratio 0.30Calculated
Shear Modulus 69.0 GPaas received
 71.0 GPaas tempered
 
Electrical PropertiesOriginal ValueComments
Electrical Resistivity 0.0000800 ohm-cm
@Temperature 20.0 °C
 0.0000950 ohm-cm
@Temperature 300 °C
Magnetic Permeability 1.004µ
 
Thermal PropertiesOriginal ValueComments
CTE, linear 16.5 µm/m-°C
@Temperature 20.0 - 100 °C
 17.5 µm/m-°C
@Temperature 20.0 - 300 °C
Specific Heat Capacity 0.500 J/g-°C
@Temperature 50.0 - 100 °C
Thermal Conductivity 15.0 W/m-K
@Temperature 20.0 °C
 19.0 W/m-K
@Temperature 300 °C
Maximum Service Temperature, Air 300 °C
Minimum Service Temperature, Air -200 °C
 
Component Elements PropertiesOriginal ValueComments
Carbon, C 0.050 %
Chromium, Cr 17.5 %
Iron, Fe 67.3 %As Balance
Manganese, Mn 1.5 %
Molybdenum, Mo 2.1 %
Nickel, Ni 11 %
Phosphorus, P <= 0.035 %
Silicon, Si 0.50 %
Sulfur, S <= 0.015 %
Titanium, Ti >= 0.30 %

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to go back to viewing the property data in MatWeb's normal format.

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NSANDV269 / 19163

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