Free-Cutting Muntz Metal, UNS C37000, H04 Temper, Tube

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Free-Cutting Muntz Metal, UNS C37000, H04 Temper, Tube
Categories:	Metal; Nonferrous Metal; Copper Alloy
Material Notes:	Temper: 1/2 Hard Fabrication Properties: Excellent Suitability – Soldering, Capacity for Being Hot Formed; Good Suitability – Brazing; Fair Suitability – Butt Weld, Capacity for Being Cold Worked Typical uses: Automatic Screw Machine Parts Applicable Specifications: Forgings, Die (Hot Pressed) – ASTM B283/B283M, ASME SB283; Rod, Bar & Shapes – ASTM B124/B124M; Rod, Tubing & Shapes – ASTM B981/B981M; Seamless Tube – ASTM B135, ASME SB135; Tube - Seamless (Metric) ASTM B135/B135M, MILITARY MIL-T-46072
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Physical Properties	Original Value	Comments

Density	0.304 lb/in³

Mechanical Properties	Original Value	Comments
Hardness, Rockwell B	85
Hardness, Rockwell 30T	74
Tensile Strength	>= 80.0 ksi
Tensile Strength, Yield	60.0 ksi	0.5% Ext
Elongation at Break	6.0 %
Tensile Modulus	15000 ksi
Modulus of Rigidity	5600 ksi
Poissons Ratio	0.34	Calculated
Machinability	70 %

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.00000640 ohm-cm	27% IACS

Thermal Properties	Original Value	Comments
CTE, linear	11.6 µin/in-°F @Temperature 20.0 - 300 °C
Specific Heat Capacity	0.0900 BTU/lb-°F
Thermal Conductivity	69.0 BTU-in/hr-ft²-°F
Melting Point	1630 - 1650 °F
Solidus	1630 °F
Liquidus	1650 °F
Annealing Point	800 - 1100 °F

Processing Properties	Original Value	Comments
Hot-Working Temperature	1150 - 1450 °F

Component Elements Properties	Original Value	Comments
Copper, Cu	59 - 62 %
Iron, Fe	<= 0.15 %
Lead, Pb	0.80 - 1.5 %
Zinc, Zn	36.2 - 40.2 %	As Balance

Descriptive Properties
Cold Work (%)	35

References for this datasheet.

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MC37000x1 / 292949

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