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.
Sizes listed by Inner Diameter x Outer Diameter
Sizes listed by thickness x width
Sizes listed by outside diameter
|QQ-C-390B, C7||MIL-C-22229, COMP 8|
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.
|Copper Alloy UNS No.||Machinability Rating||Density (lb/cu in at 68 °F)|
Mechanical Properties according to ASTM B505/B505M-18 NOTE: Compression Deformation Limit min 55 ksi/380 MPa
|Tensile Strength, min||Yield Strength, at .5% Extension Under Load, min||Elongation, in 2 in. or 50 mm min||Brinell Hardness (3000 kg load)||Remarks|
Physical Properties provided by CDA *Field Strength 16 kA/m
|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|
|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|
Fabrication Properties provided by CDA
|Gas Shielded Arc Welding||Poor|
|Coated Metal Arc Welding||Good|
|Treatment||Temp./Time - US||Temp./Time - SI|
Thermal Properties provided by CDA
|Hot Works Minimum|
|Hot Works Maximum|
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