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Elmet Technologies

Free-Cutting Muntz Metal, UNS C37000, H80 (Cold Drawn 25%) Temper 50 mm tube
Categories: Metal; Nonferrous Metal; Copper Alloy

Material Notes: Fair to excellent corrosion resistance. Excellent machinability. Combines good machinability with excellent hot formability.

Applications: automatic screw machine parts.

Test specimen: tube - 50mm OD x 6mm wall thickness.

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Physical PropertiesMetricEnglishComments
Density 8.41 g/cc0.304 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Hardness, Rockwell F 7575
Hardness, Rockwell 30T 6767
Tensile Strength, Ultimate 485 MPa70300 psi
Tensile Strength, Yield 310 MPa
@Strain 0.5 %
45000 psi
@Strain 0.5 %
Elongation at Break 10 %10 %In 50 mm
Modulus of Elasticity 105 GPa15200 ksi
Poissons Ratio 0.3460.346
Machinability 70 %70 %UNS C36000 (free-cutting brass) = 100%
Shear Modulus 39.0 GPa5660 ksi
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 0.00000639 ohm-cm
@Temperature 20.0 °C
0.00000639 ohm-cm
@Temperature 68.0 °F
 
Thermal PropertiesMetricEnglishComments
CTE, linear 20.8 µm/m-°C
@Temperature 20.0 - 300 °C
11.6 µin/in-°F
@Temperature 68.0 - 572 °F
Specific Heat Capacity 0.375 J/g-°C0.0896 BTU/lb-°F
Thermal Conductivity 120 W/m-K
@Temperature 20.0 °C
833 BTU-in/hr-ft²-°F
@Temperature 68.0 °F
Melting Point 885 - 900 °C1630 - 1650 °F
Solidus 885 °C1630 °F
Liquidus 900 °C1650 °F
Annealing Point 427 - 593 °C800 - 1100 °F
 
Processing PropertiesMetricEnglishComments
Annealing Temperature 425 - 600 °C797 - 1110 °F
Hot-Working Temperature 625 - 800 °C1160 - 1470 °F
 
Component Elements PropertiesMetricEnglishComments
Copper, Cu 59 - 62 %59 - 62 %
Iron, Fe <= 0.15 %<= 0.15 %
Lead, Pb 0.90 - 1.4 %0.90 - 1.4 %
Other, total <= 0.50 %<= 0.50 %
Zinc, Zn 39 %39 %

References for this datasheet.

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 view all the property values for this datasheet as they were originally entered into MatWeb.

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