Cast C52100
Phosphor bronze alloys such as C52100, also known as C521, consist of copper with 0.50–11.00% of tin and 0.01–0.35% phosphorus. The tin increases the corrosion resistance and strength of the alloy. The phosphorus increases the wear resistance and stiffness of the alloy. These alloys are notable for their toughness, strength, low coefficient of friction, and fine grain.
Information
Product description: Phosphor Bronze 8% C
TEMPERS: H04 Hard
Solids: 3/8” to 2 1/2” O.D.
HEX: 3/8" to 2" O.D.
Rectangles: Consult Mill
Standard lengths: 144”
Typical uses
ARCHITECTURE: bridge bearing plates
BUILDERS HARDWARE: thermostat bellows
CONSUMER: coinage, cymbals, power conductor for electro-surgical pencil
ELECTRICAL: cold headed parts, electrical connectors, electrical flexing contact blades, electronic connectors, fuse clips, switch parts, wire brushes
Fasteners: cotter pins, fasteners, heavy-duty, lock washers
Industrial: beater bar, bellows, bourdon tubing, chemical hardware, heavy duty clips, clutch disks, cold headed parts, diaphragms, doctor blades for the paper industry, gears, perforated sheets, pinions, pneumatic hammers, sleeve bushings, heavy duty springs, helical extension springs, helical torsion springs, textile machinery, thrust bearings, truss wire, welding wire, well drill equipment
MARINE: marine parts
Similar or equivalent specification
CDA | ASTM | SAE | AMS | Federal | Military | Other |
---|---|---|---|---|---|---|
C52100 | B139 B139M |
Chemical composition
Cu% | Pb% | Sn% | Zn% | Fe% | P% |
---|---|---|---|---|---|
Rem. | 0.05 | 7.00-9.00 | 0.20 | 0.10 | 0.03-0.35 |
Chemical composition according to ASTM B139/B139M-12(2017)
Note: Cu + sum of named elements, 99.5% min. Single values represent maximums.
Machinability
Copper alloy UNS no. | Machinability rating | Density (lb / in³ at 68 °F) |
---|---|---|
C52100 | 20 | 0.318 |
Mechanical properties
Mechanical properties according to ASTM B139/B139M-12 (2017)
H04 Hard
Size Range: 1/4" to 1/2" Round and Hexagonal Inclusive
Tensile strength, min | Yield strength, at 0.5% extension under load, min | Elongation, 4x Diameter or Specimen Thickness, min | Rockwell "B" Hardness | Remarks | ||
---|---|---|---|---|---|---|
ksi | MPa | ksi | MPa | % | typical HRB | |
80 | 585 | 12 | 93 |
Size Range: Over 1/2" to 1" Round and Hexagonal Inclusive
Tensile strength, min | Yield strength, at 0.5% extension under load, min | Elongation, 4x Diameter or Specimen Thickness, min | Rockwell "B" Hardness | Remarks | ||
---|---|---|---|---|---|---|
ksi | MPa | ksi | MPa | % | typical HRB | |
75 | 515 | 15 | 93 |
Size Range: Over 1" Round and Hexagonal
Tensile strength, min | Yield strength, at 0.5% extension under load, min | Elongation, 4x Diameter or Specimen Thickness, min | Rockwell "B" Hardness | Remarks | ||
---|---|---|---|---|---|---|
ksi | MPa | ksi | MPa | % | typical HRB | |
60 | 415 | 20 | 93 |
Physical properties
US Customary | Metric | |
---|---|---|
Melting point - liquidus | 1880 °F | 1027 °C |
Melting point - solidus | 1620 °F | 882 °C |
Density | 0.318 lb/in³ at 68 °F | 8.8 gm/cm³ at 20 °C |
Specific gravity | 8.80 | 8.80 |
Electrical conductivity | 13% IACS at 68 °F | 0.076 MegaSiemens/cm at 20 °C |
Thermal conductivity | 36 Btu/sq ft/ft hr/°F at 68 °F | 62.3 W/m at 20 °C |
Coefficient of thermal expansion 68-572 | 10.1 · 10-6 per °F (68-572 °F) | 17.4 · 10-6 per °C (20-300 °C) |
Specific heat capacity | 0.09 Btu/lb/°F at 68 °F | 377.1 J/kg at 20 °C |
Modulus of elastic in tension | 16000 ksi | 110310 MPa |
Modulus of Rigidity | 6400 ksi | 41370 MPa |
Fabrication properties
Technique | Suitability |
---|---|
Soldering | Excellent |
Brazing | Excellent |
Oxyacetylene welding | Fair |
Gas shielded arc welding | Good |
Coated metal arc welding | Fair |
Spot Weld | Good |
Seam Weld | Fair |
Butt Weld | Excellent |
Capacity for Being Cold Worked | Good |
Capacity for Being Hot Formed | Poor |
Machinability rating | 20 |
Thermal properties
Treatment | Minimum * | Maximum * |
---|---|---|
Annealing | 900 | 1250 |