C86300 Manganese Bronze

C86300 Manganese Bronze

C86300 SAE 430B Manganese Bronze is great for applications with heavy loads under low speeds.  This Manganese Bronze alloy has excellent mechanical quailities and good resitance to corrosion. The alloy is comprimised of Copper, Manganese, Aluminum, and Iron.  C863 has a tensile strength of 110 ksi. 

Shapes

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brass sheet sample

Cored (Tube)

Sizes listed by Inner Diameter x Outer Diameter

brass sheet sample

Flat

Sizes listed by thickness x width

brass sheet sample

Solid Round

Sizes listed by outside diameter

Applications

  • Industrial Bearings
  • Wearplates
  •  Bridge Pins
  • Liners
  • Gibs and Ways
  • Worm Gears
  • Adjusting Nuts
  • Forming Dies
  • Wear Rings
  • Pump Rods
  • Sleeve Bearings
  • Valve Seats
  • Guide Pin Bushings

Specifications

CDAASTMAsarconSAEAMSFederalMilitaryOther
C86300 B505
B505M
  430B
J461
J462
  QQ-C-390B, C7 MIL-C-22229, COMP 8  

Chemical Composition

Cu%1Pb%Sn%Zn%Fe%Ni%2Al%Mn%
Chemical Composition according to ASTM B505/B505M-18

1In determining Cu min., Cu may be calculated as Cu + Ni.  2Ni value includes Co.
Single values represent maximums.
60.00-
66.00
 
0.20
 
0.20
22.00-
28.00
2.00-
4.00
 
1.00
5.00-
7.50
2.50-
5.00

Machinability

Copper Alloy UNS No.Machinability RatingDensity (lb/cu in at 68 °F)
C86300 8 0.283

Mechanical Properties

Mechanical Properties according to ASTM B505/B505M-18  NOTE: Compression Deformation Limit min 55 ksi/380 MPa
Tensile Strength, minYield Strength, at .5% Extension Under Load, minElongation, in 2 in. or 50 mm minBrinell Hardness (3000 kg load)Remarks
ksiMPaksiMPa%typical BHN 
110 758 62 427 14 223  

Physical Properties

Physical Properties provided by CDA  *Field Strength 16 kA/m
 US CustomaryMetric
Melting Point - Liquidus 1693 °F 923 °C
Melting Point - Solidus 1625 °F 885 °C
Density 0.283 lb/in3 at 68 °F 7.83 gm/cm3 at 20 °C
Specific Gravity 7.83 7.83
Electrical Conductivity 8% IACS at 68 °F 0.046 MegaSiemens/cm at 20 °C
Thermal Conductivity 20.5 Btu/sq ft/ft hr/°F at 68 °F 35.5 W/m at 20 °C
Coefficient of Thermal Expansion 68-572 12 · 10-6 per °F (68-572 °F) 20.7 · 10-6 per °C (20-300 °C)
Specific Heat Capacity 0.09 Btu/lb/°F at 68 °F 377.1 J/kg at 293 C
Modulus of Elasticity in Tension 14200 ksi 97900 MPa
Magnetic Permeability* 1.09 1.09

Fabrication Properties

Fabrication Properties provided by CDA
Joining TechniqueSuitability
Soldering Poor
Brazing Poor
Oxyacetylene Welding Poor
Gas Shielded Arc Welding Poor
Coated Metal Arc Welding Good

Thermal Properties

TreatmentTemp./Time - USTemp./Time - SI
Thermal Properties provided by CDA
Stress Temperature 500 260
Solution Minimum    
Solution Maximum    
Solution Time 0.0  
Solution Medium    
Precipitation Value    
Precipitation Time    
Precipitation Medium    
Annealing Minimum    
Annealing Maximum    
Annealing Time    
Hot Works Minimum    
Hot Works Maximum    

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