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C86500

C86400

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Description

Leaded high strength yellow brass – copper casting alloy UNS C86400 is a cast brass alloy of manganese bronze and leaded manganese bronze. The chocolate color of UNS C86400 can be attributed to the manganese present in the alloy. The leaded brass is commonly called as architectural bronze. The lead in the alloy enhances the longevity of the alloy and gives it an attractive golden lustre.

Builders HardwareConsumerElectricalFastenersIndustrialMarinePlumbing
Door hardware for PrisonMusical InstrumentsElectrical ComponentsScrew Down NutsBearing Cage BlanksBoat PartsFixtures
Window HardwarePiano KeysElectrical EquipmentBearingsCovers for Marine Hardware
SwitchesBracketsMarine Fittings
BushingsMarine Hardware
Cams
Fittings
Lever Arms
Light Duty Gears
Machinery Parts
Propellers
Pump Fixtures
Roller Bearings
Valve Stems

COMMON FABRICATION PROCESSES

COMMON FABRICATION PROCESSES

  • No fabrication process properties for this alloy
CHEMICAL COMPOSITION

CHEMICAL COMPOSITION

Elements
Cu(1,2) Pb Sn Zn Fe Ni(3) Al Mn
(1) Cu + Sum of Named Elements 99.0% min.
(2) In determining Cu min., Cu may be calculated as Cu + Ni.
(3) Ni value includes Co.
Min (%) 56.0 0.50 0.50 34.0 0.40 0.50 0.10
Max (%) 62.0 1.5 1.5 42.0 2.0 1.0 1.5 1.5
MECHANICAL PROPERTIES

MECHANICAL PROPERTIES

Form Temper Temper Code Tensile Strength
(ksi)		 YS-0.5% Ext
(ksi)		 Elongation
(%)		 Brinell Hardness, 500 kg load Brinell Hardness, 3000 kg load Izod
(ft-lbs)		 Charpy V-Notch Impact Strength
(ft-lbs)		 Compressive Strength .001 in. set/in.
(ksi)		 Compressive Strength .1 in. set/in.
(ksi)		 Fatigue Strength**
(ksi)
* Measured at room temperature, 68°F (20°C).** Fatigue Strength: 100 x 106 cycles, unless indicated as [N] x 106.
As Centrifugal Cast As Centrifugal Cast M02 60 Min for Standard 20 Min for Standard 15 Min for Standard
As Sand Cast As Sand Cast M01 60 Min for Standard
65 Typ		 20 Min for Standard
25 Typ		 15 Min for Standard
20 Typ		 90 Typ 105 Typ 30 Typ 25 Typ 22 Typ 87 Typ 25 Typ
PHYSICAL PROPERTIES

PHYSICAL PROPERTIES

Melting Point – Liquidus°F 1616
Melting Point – Solidus°F 1583
Densitylb/cu in. at 68°F 0.301
Specific Gravity 8.33
Electrical Conductivity% IACS at 68°F 19
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F 51
Coefficient of Thermal Expansion 68-39210 to -6 power per °F (68 – 392°F) 11
Specific Heat CapacityBtu/ lb /°F at 68°F 0.09
Modulus of Elasticity in Tensionksi 14000
FABRICATION PROPERTIES

FABRICATION PROPERTIES

Soldering Fair
Brazing Fair
Oxyacetylene Welding Poor
Gas Shielded Arc Welding Poor
Coated Metal Arc Welding Poor
Machinability Rating 65
APPLICABLE SPECIFICATIONS

APPLICABLE SPECIFICATIONS

Form Specific Sub-Form Application System Standard Description
As Centrifugal Cast Castings ASTM B271/B271M COPPER BASE ALLOY CENTRIFUGAL CASTINGS
As Sand Cast Castings ASTM B763/B763M COPPER ALLOY SAND CASTINGS FOR VALVE APPLICATIONS
Castings ASTM B584 COPPER ALLOY SAND CASTINGS FOR GENERAL APPLICATIONS
Ingot FEDERAL QQ-C-523 COPPER ALLOY INGOTS: BRASS (YELLOW HIGH STRENGTH) MANGANESE AND MANGANESE-ALUMINUM BRONZE
ASTM B30 COPPER BASE ALLOYS IN INGOT FORM
Valves