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C86550 Cast BRASSES Manganese Bronze and Leaded Manganese Bronze Alloy (High Strength Yellow Brasses) true false https://api.copper.org/alloys.xhtml/C86550
Chemical Composition
Elements
Cu(1,2) Pb Sn Zn Fe Ni(3) Al Mn Si
(1) In determining Cu min., Cu may be calculated as Cu + Ni.
(2) Cu + Sum of Named Elements 99.0% min.
(3) Ni value includes Co.
Min (%) 57.0 0.7 0.50 0.10
Max (%) 0.50 1.0 Rem 2.0 1.0 2.5 3.0 0.10
Mechanical Properties *
Form Temper Temper Code Tensile Strength
(ksi)		 YS-0.2% Offset
(ksi)		 Elongation
(%)		 Brinell Hardness, 3000 kg load 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 Sand Cast As Sand Cast M01 47 Min
 17 Min
 18 Min
 100 Min
 16 Typ 61 Typ 14 Typ
Physical Properties
Densitylb/cu in. at 68°F 0.3
Specific Gravity 8.3
Electrical Conductivity% IACS at 68°F 22
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F 50
Coefficient of Thermal Expansion 68-39210 to -6 power per °F (68 – 392°F) 11.4
Modulus of Elasticity in Tensionksi 14000
Casting Characteristics
Casting Attribute Level
Casting Yield Low
Drossing Low
Fluidity Medium
Gassing Medium
Patternmakers Shrinkage inches per inch 5/32
Shrinkage in Solidification High
Fabrication Properties
Technique Suitability
Soldering Fair
Brazing Good
Oxyacetylene Welding Not Recommended
Gas Shielded Arc Welding Fair
Coated Metal Arc Welding Fair
Machinability Rating 15
Common Fabrication Processes

No fabrication process properties for this alloy

Thermal Properties
Treatment Time**
** Time is measured in minutes.
Solution Treatment 0
Typical Uses

No information for this alloy

Applicable Specifications

No applicable specifications for this alloy

Corrosion Properties

No Corrosion Properties Available.