C86300 Manganese Bronze SAE 430B
C86300 continuous cast manganese bronze is a high strength, non-heat treatable copper alloy intended for use in applications requiring a good combination of outstanding wear characteristics and high bearing strength for heavy loads and slow speeds. Typical applications include slow speed heavy duty load bearings, gears, cams and hydraulic cylinder parts. Conforms to continuous cast specification ASTM B505.

Standards | ASTM B-62, ASTM B-271, ASTM B-505, ASTM B-584, ASTM B-145/4A, SAE 461, SAE J462, SAE 40, AMS 4085, AMS 4855B, DIN 2.1096.01 |
Pipe
HOLLOW BAR (Continuous Cast) | 1" x 2" I.D. thru 10" x 12" O.D. |
SOLID BAR | 3/4" - 16" diameter |
WEAR PLATE | 3/8" - 4" thick thru 12" wide |
Typical Uses for C86300 Manganese Bronze - CDA 863 - SAE 430 B
- Builders Hardware: Brackets
- Electrical: Electrical Components, Switches
- Industrial: Wear Rings for Forming Dies for Wood Pulp Industry, Large Valve Stems, Hydraulic Cylinder Parts, Propellers, Bridge Pins, Forming Dies for Wood Pulp Industry, Cams, Gib, Gears, Hydraulic Cylinder Parts, Slow Speed, Heavy Load Bearings, Bushings, High Strength Machine Parts, Hooks, Frames, Struts
- Fasteners: Screw Down Nuts, Screw Down Nuts
- Marine: Marine Hardware, Rudders, Covers for Marine Hardware, Clamps, Boat Parts
Chemical Composition
Al | Cu | Fe | Pb | Mn | Ni | Sn | Zn | |
Min/Max | 5.0 - 7.5 | 60.0 - 66.0 | 2.0 - 4.0 | 0.2 | 2.5 - 5.0 | 1 | 0.2 | 22.0 - 28.0 |
Nominals | 6.2000 | 63.0000 | 3.0000 | - | 3.7000 | - | - | 25.0000 |
Temper
Product Type | Temper Type |
Centrifugal | AMS 4862, ASTM B271, SAE J462, J461 |
Continuous | ASTM B505 |
Ingot | ASTM B30, FEDERAL QQ-C-523 |
Precision | MILITARY MIL-C-11866 |
Sand | AMS 4862, ASTM B763, B584, B22, SAE J462, J461 |
Mechanical Properties
Temper | Sect. Size | Cold Work | Type Min | Temp | Tensile Strength | YS 0.05% UL |
YS 0.02% Offset |
YS 0.005% Offset |
Elong. | RH B |
RH C |
RH F |
RH 30T |
VH 500 |
BH 500 |
BH 3000 |
Shear Strgth |
Fatigue Strgth |
Izod Impact Strgth |
- | in. | % | - | F | ksi | ksi | ksi | ksi | % | B | C | F | 30T | 500 | 500 | 3000 | ksi | ksi | ft-lb |
- | mm. | - | - | C | MPa | MPa | MPa | MPa | - | - | - | - | - | - | - | - | MPa | MPa | J |
As Centrifugal Cast | |||||||||||||||||||
M02 | 68 | 110 | 60 | - | - | - | - | - | - | - | - | - | - | - | - | ||||
M02 | 0 | SMIN | 20 | 758 | 414 | - | - | 12 | - | - | - | - | - | - | - | - | - | 0 | |
As Continous Cast | |||||||||||||||||||
M07 | 68 | 110 | 62 | - | - | - | - | - | - | - | - | - | - | - | - | ||||
M07 | 0 | SMIN | 20 | 758 | 427 | - | - | 14 | - | - | - | - | - | - | - | - | - | 0 | |
As Sand Cast | |||||||||||||||||||
M01 | 68 | 110 | 60 | - | - | - | - | - | - | - | - | - | - | - | - | ||||
M01 | 0 | SMIN | 20 | 760 | 415 | - | - | 12 | - | - | - | - | - | 223 | - | - | - | 0 | |
M01 | 68 | 119 | 62 | - | - | - | - | - | - | - | - | - | - | - | 4 | 11 | |||
M01 | 0 | TYP | 20 | 821 | 427 | - | - | 18 | - | - | - | - | - | 225 | - | - | 25 | 15 |
Physical Properties
Product Property | US Customary | Metric |
Coefficient of Thermal Expansion | 12.0 · 10-6 per oF (68-572 F) | 21.6 · 10-6 per oC (20-200 C) |
Density | 0.283 lb/in3 at 68 F | 7.83 gm/cm3 @ 20 C |
Electrical Conductivity | 8.0 %IACS @ 68 F | 0.0746 MegaSiemens/cm @ 20 C |
Electrical Resistivity | 130.8 ohms-cmil/ft @ 68 F | 21.74 Microhm-cm @ 20 C |
Magnetic Permeability | 1.09 | 1.09 |
Melting Point - Liquidus | 1693 F | 923 C |
Melting Point - Solidus | 1625 F | 885 C |
Modulas of Elasticity in Tension | 14200 ksi | 97900 MPa |
Specific Gravity | 7.83 | 7.83 |
Specific Heat Capacity | 0.09 Btu/lb/oF at 68 F | 377.1 J/kg · oK at 293 K |
Thermal Conductivity | 20.5 Btu · ft/(hr · ft2 · oF)at 68F | 35.5 W/m · oK at 20 C |
Fabrication
Joining Technique | Suitability |
Brazing | Poor |
Coated Metal Arc Welding | Good |
Gas Shielded Arc Welding | Poor |
Machinability Rating | 8% |
Oxyacetylene Welding | Poor |
Soldering | Poor |
Our Services

Aviva Metals Houston warehouse operation is a AS9120B, and AS9100D in our Ohio foundry, based on ISO 9001:2015. We are now also offering our complete range of brass, bronze and copper alloys in precision machined or milled parts, in full accordance with your drawings. Aviva Metals creates custom precision bearings and bushings, flanges, washers, double flange bearings, full half bearings, spacers and special machined parts that can be shipped on a global basis and in full accordance with most international standards.