C86300

Description

Manganese bronze – copper casting alloy UNS C86300 is an alloy that primarily consists of copper, zinc and aluminium.. The manganese present in UNS C86300 gives a chocolate brown color to the alloy. Copper casting alloy UNS C86300 is used in architecture for its longevity.

Builders Hardware	Electrical	Fasteners	Industrial	Marine
Brackets	Electrical Components	Screw Down Nuts	Bridge Pins	Boat Parts
	Switches		Bushings	Clamps
			Cams	Covers for Marine Hardware
			Forming Dies for Wood Pulp Industry	Marine Hardware
			Frames	Rudders
			Gears
			Gib
			High Strength Machine Parts
			Hooks
			Hydraulic Cylinder Parts
			Large Valve Stems
			Propellers
			Slow Speed, Heavy Load Bearings
			Struts
			Wear Rings for Forming Dies for Wood Pulp Industry

COMMON FABRICATION PROCESSES

No fabrication process properties for this alloy

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 (%)	60.0			22.0	2.0		5.0	2.5
Max (%)	66.0	0.20	0.20	28.0	4.0	1.0	7.5	5.0

MECHANICAL PROPERTIES

Form	Temper	Temper Code	Tensile Strength (ksi)	YS-0.2% Offset (ksi)	YS-0.5% Ext (ksi)	Elongation (%)	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)	Creep Strength (0.1% per 10,000 hours) (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	110 Min for Standard	83 Typ		12 Min for Standard
As Continuous Cast	As Continuous Cast	M07	110 Min for Standard		62 Min for Standard	14 Min for Standard
As Sand Cast	As Sand Cast	M01	110 Min for Standard 119 Typ		60 Min for Standard 62 Typ	12 Min for Standard 18 Typ	223 Min for Standard 225 Typ	15 Typ	12 Typ	60 Typ	97 Typ	19 Typ	25 Typ

PHYSICAL PROPERTIES

Melting Point – Liquidus°F	1693
Melting Point – Solidus°F	1625
Densitylb/cu in. at 68°F	0.283
Specific Gravity	7.83
Electrical Conductivity% IACS at 68°F	8
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F	20.5
Coefficient of Thermal Expansion 68-57210 to -6 power per °F (68 – 572°F)	12
Specific Heat CapacityBtu/ lb /°F at 68°F	0.09
Modulus of Elasticity in Tensionksi	14200
Magnetic Permeability	1.09 ⁽¹⁾

FABRICATION PROPERTIES

Soldering	Poor
Brazing	Poor
Oxyacetylene Welding	Poor
Gas Shielded Arc Welding	Poor
Coated Metal Arc Welding	Good
Machinability Rating	8

APPLICABLE SPECIFICATIONS

Form	Specific Sub-Form	System	Standard	Description
As Centrifugal Cast	Castings	SAE	J461	WROUGHT AND CAST COPPER ALLOYS
	Castings	SAE	J462	CAST COPPER ALLOYS
	Castings	ASTM	B271/B271M	COPPER BASE ALLOY CENTRIFUGAL CASTINGS
	Castings	AMS	4862	MANGANESE BRONZE CASTINGS, SAND AND CENTRIFUGAL, HIGH STRENGTH, AS CAST
As Continuous Cast	Castings	ASTM	B505/B505M	COPPER BASE ALLOY CONTINUOUS CASTINGS
As Sand Cast	Castings	ASTM	B584	COPPER ALLOY SAND CASTINGS FOR GENERAL APPLICATIONS
	Castings	ASTM	B763/B763M	COPPER ALLOY SAND CASTINGS FOR VALVE APPLICATIONS
	Castings	SAE	J462	CAST COPPER ALLOYS
	Castings	SAE	J461	WROUGHT AND CAST COPPER ALLOYS
	Castings	AMS	4862	MANGANESE BRONZE CASTINGS, SAND AND CENTRIFUGAL, HIGH STRENGTH, AS CAST
	Castings	ASTM	B22/B22M	BRONZE CASTINGS FOR BRIDGES AND TURNTABLES
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

Precision Cast	Castings	MILITARY	MIL-C-11866	CASTINGS, PRECISION, NONFERROUS
Valves