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C51000 Phosphor Bronze available from Dura-Bar Metal Services. #

Phosphor Bronze C51000 (CDA 510)

C51000 Phosphor Bronze 5% A, cast and cold drawn. Excellent soldering and brazing capability. Corrosion resistant.

Also known as: CDA 510, ASTM B-139 Alloy C51000, SAE J461, J463, AMS 4625

Chemical Composition
Cu% Pb% Zn% Fe% Ni% P%
Remainder 0.05 0.30 0.10 N/A 0.03-0.35

Typical Uses

Architecture:
Bridge Bearing Plates
Electrical:
Resistance Wire, Fuse Clips, Electromechanical Spring Components, Electrical Flexing Contact Blades, Electrical Connectors, Electronic Connectors, Wire Brushes, Switch Parts, Electronic and Precision Instrument Parts
Fasteners:
Fasteners, Cotter Pins, Lock Washers
Industrial:
Bourdon Tubes, Bellows, Perforated Sheets, Chemical Hardware, Truss Wire, Springs, Sleeve Bushings, Diaphragms, Clutch Disks, Pressure Responsive Elements, Beater Bar, Textile Machinery, Welding Rods

Alloy Properties

H04 Hard Temper: 1/4" to 1/2" Rd and Hex
Tensile Strength, min 70 ksi 485 MPa
Yield Strength @ .5% ext under load min N/A N/A
Elongation in 2 in. or 50 mm min, % 13  
Brinell Hardness, min N/A  
Machinability Rating 20%  
H04 Hard Temper: Over 1/2" to 1" Inclusive Rd and Hex
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, % 15  
Brinell Hardness, min N/A  
Machinability Rating 20%  
H04 Hard Temper: Over 1" Rd and Hex
Tensile Strength, min 40 ksi 275 MPa
Yield Strength @ .5% ext under load min 25 ksi 170 MPa
Elongation in 2 in. or 50 mm min, % 12  
Brinell Hardness, min N/A  
Machinability Rating 80%  
H04 Hard Temper: 2" Dia. and Under
Tensile Strength, min 55 ksi 380 MPa
Yield Strength @ .5% ext under load min N/A N/A
Elongation in 2 in. or 50 mm min, % 18  
Brinell Hardness, min N/A  
Machinability Rating 20%  
H08 Spring Temper: 3/8" to 1/2" Rd
Tensile Strength, min 90 ksi 620 MPa
Yield Strength @ .5% ext under load min N/A N/A
Elongation in 2 in. or 50 mm min, % 9  
Brinell Hardness, min N/A  
Machinability Rating 20%  
  US Customary Metric
Melting Point-Liquidus 1920 F 1049 C
Melting Point-Solidus 1750 F 954 C
Density 0.320 lb/in3
@ 68 F
8.86 gm/cm3
@ 20 C
Specific Gravity 8.860 8.86
Electrical Resistivity 69.10 ohms-cmil/ft
@ 68 F
11.49 microhm-cm
@ 20 C
Electrical Conductivity 150 %IACS @ 68 F 0.088 MegaSiemens/
cm @ 20 C
Thermal Conductivity 400 Btu ft/
(hr ft2 oF) @ 68 F
69.2 W/m oK @ 20 C
Coefficient of
Thermal Expansion
9.90 10-6 per oF
(68-572 F)
17.8 10-6 per oC
(20-300 C)
Specific Heat Capacity 0.090 Btu/ib/Of
@ 68 F
377.1 J/Kg oK
@ 293 K
Modulus of Elasticity
in Tension
16000 ksi 110000 Mpa
Modulus of Rigidity 6000 ksi 41370 Mpa
Joining 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 Excellent
Capacity for being Hot Worked Poor