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Phosphor Bronzes, or tin bronzes, are alloys containing copper, tin and phosphorous. Phosphorous Bronze Fasteners, contain between 0.5 and 11% tin and 0.01 to 0.35 % phosphorous. Phosphorous Bronze Stud Bolts have superb spring qualities, high fatigue resistance, excellent formability and solderability, and high corrosion resistance. Phosphorous Bronze Fasteners primarily used for electrical products, other uses include corrosion resistant bellows, diaphragms, and spring washers.
Phosphorous Bronze Fasteners combine good strength and fatigue resistance with good machinability, high wear resistance and corrosion resistance. Phosphorous Bronze Fasteners have a wide freezing range and extensive segregation of the alloying occurs on cooling. Phosphor bronze which is often referred to as tin bronze or phos bronze is an alloy of copper, tin and phosphorous.
Phosphor Bronzes, or tin bronzes, are alloys containing copper, tin and phosphorous. Phosphorous Bronze Fasteners, contain between 0.5 and 11% tin and 0.01 to 0.35 % phosphorous. Phosphorous Bronze Stud Bolts have superb spring qualities, high fatigue resistance, excellent formability and solderability, and high corrosion resistance. Phosphorous Bronze Fasteners primarily used for electrical products, other uses include corrosion resistant bellows, diaphragms, and spring washers.
Phosphorous Bronze Fasteners combine good strength and fatigue resistance with good machinability, high wear resistance and corrosion resistance. Phosphorous Bronze Fasteners have a wide freezing range and extensive segregation of the alloying occurs on cooling. Phosphor bronze which is often referred to as tin bronze or phos bronze is an alloy of copper, tin and phosphorous.
Standard Specification For Phosphorous Bronze Fasteners
Material | Specification | Standards | Size |
Phosphorous Bronze | ASTM | ASTM C54400 | 1/4″ to 2″ |
Phosphorous Bronze Fasteners Equivalent Grades
CDA | ASTM | ASARCON | SAE | AMS | Federal | Military | Other |
C54400 | B139 | | J461 J463 | | | | |
Chemical Composition of Phosphorous Bronze Fasteners
Cu% | Sn% | Pb% | Zn% | Fe% | P% |
Remainder | 3.50-4.50 | 3.00-4.00 | 1.50-4.50 | 0.10 | 0.01-0.50 |
Phosphorous Bronze Fasteners Mechanical Properties
Tensile Strength, min | 60 ksi | 415 MPa |
Yield Strength @ .5% ext under load min | N/A | N/A |
Elongation in 2 in. or 50 mm min, % | 10 | |
Brinell Hardness, min | N/A | |
Machinability Rating | 80% |
Phosphorous Bronze Fasteners Physical Properties
Density g/cm³ | 8.89 |
Melting Temperature Range °C | 920-1000 |
Thermal Conductivity W/mK | 86.5 |
Electrical Resistivity μΩ.m15°C | 9 |
Coefficient of Thermal Expansion 0-250°C | 17.3 |
Relative Magnetic Permeability | < 1.01 |
Coefficient of Friction |
Standard Specification For Phosphorous Bronze Fasteners
Material | Specification | Standards | Size |
Phosphorous Bronze | ASTM | ASTM C54400 | 1/4″ to 2″ |
Phosphorous Bronze Fasteners Equivalent Grades
CDA | ASTM | ASARCON | SAE | AMS | Federal | Military | Other |
C54400 | B139 | | J461 J463 | | | | |
Chemical Composition of Phosphorous Bronze Fasteners
Cu% | Sn% | Pb% | Zn% | Fe% | P% |
Remainder | 3.50-4.50 | 3.00-4.00 | 1.50-4.50 | 0.10 | 0.01-0.50 |
Phosphorous Bronze Fasteners Mechanical Properties
Tensile Strength, min | 60 ksi | 415 MPa |
Yield Strength @ .5% ext under load min | N/A | N/A |
Elongation in 2 in. or 50 mm min, % | 10 | |
Brinell Hardness, min | N/A | |
Machinability Rating | 80% |
Phosphorous Bronze Fasteners Physical Properties
Density g/cm³ | 8.89 |
Melting Temperature Range °C | 920-1000 |
Thermal Conductivity W/mK | 86.5 |
Electrical Resistivity μΩ.m15°C | 9 |
Coefficient of Thermal Expansion 0-250°C | 17.3 |
Relative Magnetic Permeability | < 1.01 |
Coefficient of Friction |