C67500 Manganese Bronze
ASTM B138, QQ-B-728, SAE J461, SAE J463
C67500 represents a wrought alloy of manganese bronze, offering a bronze of moderately elevated strength with commendable tensile properties and overall resistance to corrosion. Furthermore, it exhibits exceptional characteristics for hot working in closed die forging applications.
| SOLID BAR | 1/4" - 4" diameter in extruded & drawn condition |
| SOLID BAR | 4 1/4" - 12" diameter in cast & turned condition |
| HOLLOW BAR | in the above O.D. size ranges available upon request |
Typical Uses for C67500 Manganese Bronze
- Automotive: Clutch Disks, Shafting, Pump Rods
- Fasteners: Bolts
- Industrial: Valve Bodies, Balls, Valve Stems, Bushings, Aircraft Parts
- Marine: Hardware
Product Specifications
| End Product | Specification |
| Bar | ASTM B138, SAE J461, J463 |
| Bar, For ging | ASTM B124 |
| Bolts | ASTM F468 |
| Forgings, Die | ASTM B283, SAE J463, J461 |
| Nuts | ASTM F467 |
| Rod | ASTM B138, SAE J463, J461 |
| Rod, Forging | ASTM B124 |
| Screws | ASTM F468 |
| Shapes | ASTM B138, SAE J461, J463 |
| Shapes, Forging | ASTM B124 |
| Studs | ASTM F468 |
Chemical Composition
| Al | Cu | Fe | Pb | Mn | Sn | Zn | |
| Min/Max | 0.25 | 57.0 - 60.0 | 0.80 - 2.0 | 0.2 | 0.05 - 0.50 | 0.50 - 1.5 | Rem |
| Nominals | - | 58.5000 | 1.4000 | - | 0.1000 | 1.0000 | 39.0000 |
Temper
| Product Type | Temper Type |
| Bar | ASTM B138, SAE J461, J463 |
| Bar, For ging | ASTM B124 |
| Bolts | ASTM F468 |
| Forgings, Die | ASTM B283, SAE J463, J461 |
| Nuts | ASTM F467 |
| Rod | ASTM B138, SAE J463, J461 |
| Rod, Forging | ASTM B124 |
| Screws | ASTM F468 |
| Shapes | ASTM B138, SAE J461, J463 |
| Shapes, Forging | ASTM B124 |
| Studs | ASTM F468 |
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 |
| H01 | 2.01 | 68 | 72 | 42 | - | - | - | - | - | - | - | - | - | - | 44 | - | |||
| H01 | 51 | 10 | TYP | 20 | 496 | 290 | - | - | 27 | 77 | - | - | - | - | - | - | 303 | - | 0 |
| O60 | 1 | 68 | 65 | 30 | - | - | - | - | - | - | - | - | - | - | 42 | - | |||
| O60 | 25.4 | 0 | TYP | 20 | 448 | 207 | - | - | 33 | 65 | - | - | - | - | - | - | 290 | - | 0 |
| H02 | 1 | 68 | 84 | 60 | - | - | - | - | - | - | - | - | - | - | 48 | - | |||
| H02 | 25.4 | 20 | TYP | 20 | 579 | 414 | - | - | 19 | 90 | - | - | - | - | - | - | 331 | - | 0 |
| H01 | 2.01 | 68 | 77 | 45 | - | - | - | - | - | - | - | - | - | - | 47 | - | |||
| H01 | 51 | 10 | TYP | 20 | 531 | 310 | - | - | 23 | 83 | - | - | - | - | - | - | 324 | - | 0 |
Physical Properties
| Product Property | US Customary | Metric |
| Coefficient of Thermal Expansion | 11.8 · 10-6 per oF (68-572 F) | 21.2 · 10-6 per oC (20-300 C) |
| Density | 0.302 lb/in3 at 68 F | 8.36 gm/cm3 @ 20 C |
| Electrical Conductivity | 24 %IACS @ 68 F | 0.14 MegaSiemens/cm @ 20 C |
| Electrical Resistivity | 43.2 ohms-cmil/ft @ 68 F | 7.18 microhm-cm @ 20 C |
| Melting Point - Liquidus | 1630 F | 888 C |
| Melting Point - Solidus | 1590 F | 866 C |
| Modulas of Elasticity in Tension | 15000 ksi | 103400 MPa |
| Modulus of Rigidity | 5600 ksi | 38610 MPa |
| Specific Gravity | 8.36 | 8.36 |
| Specific Heat Capacity | 0.09 Btu/lb/oF at 68 F | 377.1 J/kg/ · oK at 293 K |
| Thermal Conductivity | 61.0 Btu · ft/(hr · ft2 · oF) at 68F | 105.6 W/m · oK at 20 C |
Fabrication
| Joining Technique | Suitability |
| Brazing | Excellent |
| Butt Weld | Good |
| Capacity for Being Cold Worked | Poor |
| Capacity for Being Hot Formed | Excellent |
| Coated Metal Arc Welding | Not Recommended |
| Forgeability | 80 |
| Gas Shielded Arc Welding | Fair |
| Machinability Rating | 30 |
| Oxyacetylene Welding | Good |
| Seam Weld | Fair |
| Soldering | Excellent |
| Spot Weld | Good |
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.
