655 Bronze Composition
C65500 Bronze is composed primarily of copper (Cu) and zinc (Zn). It also contains trace amounts of tin (Sn), phosphorus (P), lead (Pb), antimony (Sb), bismuth (Bi), arsenic (As), nickel (Ni), and iron (Fe). The specific ratio of these elements varies depending on the manufacturer, but generally, the ratio is 77-81% Copper to 19-23% Zinc.
| Component | Wt. % |
| Cu | 97 |
| Fe | Max 0.8 |
| Mn | Max 1.5 |
| Ni | Max 0.6 |
| Pb | Max 0.5 |
| Si | 2.8 – 3.8 |
| Zn | Max 1.5 |
Alloy 655 Chemical Properties
Bronze C65500 Alloy has a high corrosion resistance due to its low water solubility, making it ideal for applications where corrosion is an issue. It also has excellent wear resistance due to the hardness of bronze alloys which provides long-lasting protection against abrasive wear. It also has good electrical conductivity, making it useful for electrical components such as connectors or switches.
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Chemical properties
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Element
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Percentage
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| Cu | 96 – 99 |
| Si | 1 – 4 |
655 Bronze Mechanical Properties
The mechanical properties of Bronze 655 include high tensile strength and good ductility, which make it suitable for applications that require both strength and flexibility, such as springs or shafts. It also has good machinability, so parts made from this alloy can be easily fabricated using traditional machining methods such as turning or milling. Finally, Bronze 655 also has good weldability, so parts made from this alloy can be combined using welding techniques such as TIG or MIG welding.
| Mechanical Properties | |||
| Hardness, Rockwell B | 95 | 95 | |
| Tensile Strength, Ultimate | 745 MPa | 108000 psi | |
| Tensile Strength, Yield | 415 MPa | 60200 psi | 0.5% extension under load |
| Elongation at Break | 13% | 13% | In 50 mm |
| Modulus of Elasticity | 105 GPa | 15200 ksi | |
| Poisson's Ratio | 0.346 | 0.346 | |
| Machinability | 30% | 30% | UNS C36000 (free-cutting brass) = 100% |
| Shear Modulus | 39 GPa | 5660 ksi | |
| Shear Strength | 425 MPa | 61600 psi | |
655 Bronze Physical Properties
The physical properties of UNS C6550 include high thermal conductivity. Hence, parts made from this alloy are ideal for applications where heat needs to be transferred away quickly, such as engine blocks or heat exchangers. It also has high electrical conductivity making it useful for components that need to carry large amounts of electricity, such as motors or generators. Finally, bronze alloys are non-magnetic, meaning they can be used in applications where magnetic interference is an issue such as medical devices or navigation systems.
| Melting Point – Liquidus°F 1880 | Melting Point – Liquidus°F 1880 | |
| Melting Point – Solidus°F 1780 | Melting Point – Solidus°F 1780 | |
| Densitylb/cu in. at 68°F 0.308 | Densitylb/cu in. at 68°F 0.308 | |
| Specific Gravity 8.53 | Specific Gravity 8.53 | |
| Electrical Conductivity% IACS at 68°F 7 | Electrical Conductivity% IACS at 68°F 7 | |
| Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F 21 | Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F 21 | |
| Coefficient of Thermal Expansion 68-57210⁻⁶ per °F (68 – 572°F) 10 | Coefficient of Thermal Expansion 68-57210⁻⁶ per °F (68 – 572°F) 10 | |
| Specific Heat CapacityBtu/ lb /°F at 68°F 0.09 | Specific Heat CapacityBtu/ lb /°F at 68°F 0.09 | |
| Modulus of Elasticity in Tensionksi 15000 | Modulus of Elasticity in Tensionksi 15000 | |
| Modulus of Rigidityksi 5600 | Modulus of Rigidityksi 5600 |
C6550 Bronze Equivalent
ASME SB315
ASME SB96
ASME SB98
ASTM B100
ASTM B105
ASTM B124
ASTM B283
ASTM B315
ASTM B432
ASTM B96
ASTM B98
ASTM B99
ASTM F467
SAE J461
SAE J463
UNS C6550
Bronze 655 Specifications
| END PRODUCT | SPECIFICATION |
| Bronze 655 Bar | SAE J463, J461 |
| Bronze 655 Bar, Forging | ASTM B124 |
| Bronze 655 Bar, Rolled, Pressure Vessels | ASME SB96, ASTM B96 |
| Bronze 655 Bolts | ASTM F468 |
| Bronze 655 Forgings, Die | ASTM B283 |
| Bronze 655 Nuts | ASTM F467 |
| Bronze 655 Pipe | ASME SB315, ASTM B315 |
| Bronze 655 Plate | ASME SB96, ASTM B96 |
| Bronze 655 Plate, Bridge and Bearing | ASTM B100 |
| Bronze 655 Plate, Clad | ASTM B432 |
| Bronze 655 Plate, Pressure Vessels | ASME SB96, ASTM B96 |
| Bronze 655 Rod | ASME SB98, ASTM B98, SAE J461, J463 |
| Bronze 655 Rod, Forging | ASTM B124 |
| Bronze 655 Screws | ASTM F468 |
| Bronze 655 Shapes | ASME SB98, ASTM B98, SAE J461, J463 |
| Bronze 655 Shapes, Forging | ASTM B124 |
| Bronze 655 Sheet | ASME SB96, ASTM B96, SAE J461, J463 |
| Bronze 655 Sheet, Bridge and Bearing | ASTM B100 |
| Bronze 655 Sheet, Pressure Vessels | ASME SB96, ASTM B96 |
| Bronze 655 Strip | ASME SB96, ASTM B96, SAE J461, J463 |
| Bronze 655 Studs | ASTM F468 |
| Bronze 655 Tube | ASME SB315, ASTM B315, MILITARY MIL-T-8231 |
| Bronze 655 Wire | ASTM B105, B99 |
655 Bronze Uses
Bronze has many varied applications, with more and more uses being discovered daily by inventors. This sturdy alloy is made of copper and tin, and it's been valued since ancient times for its durability and corrosion resistance. C65500 remains popular in industries ranging from construction to sculpture because it can be easily molded thanks to its malleability. It's also used in various applications as a bearing material because of its high load-bearing capacity. Also, bronze 655 is great for saltwater environments since it doesn't degrade like iron. All these wide-ranging uses make bronze an excellent choice for any application where strength, reliability and affordable pricing are a must!
Jewelry
Bronze has been used to create jewelry for thousands of years. Bronze is an ideal material for jewelry as it is strong and durable yet still relatively soft and easy to work with. Additionally, bronze does not rust or tarnish like other metals, making it ideal for creating long-lasting pieces.
Sculptures
Bronze is also commonly used to create sculptures. When creating a sculpture out of bronze, an artist first creates a model out of clay or another malleable material. This model is then used to create a mold filled with molten bronze. Once the bronze has cooled and hardened, the mold is broken away to reveal the finished sculpture.
Coins
Bronze has also been traditionally used to create coins. The first coins were made out of bronze over 2,500 years ago in China. Bronze coins continued to be used worldwide for centuries until they were eventually replaced by more modern materials such as copper and nickel.
