C87850

Product description: Silicon brass
Solids: Consult mill for sizes
Tubes: Consult mill for sizes*
Rectangles: Consult mill for sizes
Standard lengths: 144"
Shape/Form: Semi-finished, mill stock or near net shapes, anode, bar stock, billet/bloom, squares, hex, plate, profile or structural shape, flats/rectangular bar
Compliance: C87850 is compliant with key legislation including (1) Federal Safe Drinking Water Act - SDWA, (2) S. 3874 Federal Reduction of Lead in Drinking Water Act, (3) California AB1953, and (4) Vermont Act 193

*Consult mill for wall thickness

Typical uses

Industrial: Valve bodies for water
Marine: Marine products
Plumbing: Faucets, plumbing fittings, water meter cases

Similar or equivalent specification

CDA	ASTM	SAE	AMS	Federal	Military	Other
C87850	B505 B505M

Chemical composition

Cu%	Pb%	Sn%	Zn%	Fe%	P%	Ni%1	Mn%	Sb%	Si%
Chemical composition according to ASTM B505/B505M-23 *Pb content is greater than 0.02%. 1Ni value includes Co. Note: Cu + sum of named elements, 99.5% min. Single values represent maximums.
75.00- 78.00	0.02*- 0.09	0.30	Rem.	0.10	0.05- 0.20	0.20	0.10	0.10	2.70- 3.40

Machinability

Copper alloy UNS No.	Machinability rating	Density (lb/in3 at 68 ˚F)
C87850	70	0.3

Mechanical properties

Tensile strength, min		Yield strength (at 0.5% extension under load,, min)		Elongation, in 2 in. or 50 mm min	Brinell hardness (500 kg load)
Mechanical properties according to ASTM B505/B505M-23
ksi	MPa	ksi	MPa	%	minimum BHN
65	448	25	172	8	103

Physical properties

	US Customary	Metric
Physical properties provided by CDA
Melting point - liquidus	1616 °F	880 °C
Melting point - solidus	1571 °F	855 °C
Density	0.3 lb/in3 at 68 °F	8.3 gm/cm3 at 20 °C
Electrical conductivity	8% IACS at 68 °F	0.046 MegaSiemens/cm at 20 °C
Thermal conductivity	21.8 Btu/sq ft/ft hr/°F at 68 °F	37.8 W/m at 20 °C
Coefficient of thermal expansion 68-212	10.3 · 10-6 per °F (68-212 °F)	17.8 · 10-6 per °C (20-100 °C)
Coefficient of thermal expansion 68-392	10.3 · 10-6 per °F (68-392 °F)	17.8 · 10-6 per °C (20-200 °C)
Coefficient of thermal expansion 68-572	10.4 · 10-6 per °F (68-572 °F)	18 · 10-6 per °C (20-300 °C)
Specific heat capacity	0.09 Btu/lb/°F at 68 °F	377.1 J/kg at 20 °C
Modulus of elasticity in tension	15200 ksi	104801 MPa

Fabrication properties

Technique	Suitability
Fabrication properties provided by CDA
Soldering	Excellent
Brazing	Excellent
Oxyacetylene welding	Good
Spot weld	Good
Seam weld	Good
Butt weld	Good
Capacity for being cold worked	Poor
Capacity for being hot formed	Excellent
Machinability rating	70

Thermal properties

Treatment	Min*	Max*	Value*	Time**
Thermal properties provided by CDA Temperature is measured in fahrenheit. **For stress relief, Solution treatment and annealing - time is measured in hours/inch of thickness. For precipitation heat treatment - time is measured in hours.
Stress relief			0
Solution treatment				0
Annealing	932	1112

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C87850

Stocked alloy specs

Reference guide

Stocked size schedules

C87850

Typical uses

Similar or equivalent specification

Chemical composition

Machinability

Mechanical properties

Physical properties

Fabrication properties

Thermal properties

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