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C53400

Stocked alloy specs

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Reference guide

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Continuous cast and drawn

Phosphor bronze C53400 contains copper, tin, and phosphorus. Phosphorus increases the wear resistance and stiffness of the alloy. Tin increases the corrosion resistance and strength of the alloy. Lead, zinc, and iron are other named elements. Phosphor bronze alloys are notable for their toughness, strength, good conductivity, and low coefficient of friction.


In addition to C53400, Wieland Concast offers phosphor bronze alloys C51000, C52100, and C54400. Wieland Concast is the only domestic producer of phosphor bronze.

C53400 spec sheet 500 series brochure Standard products

C53400

Product description: Phosphor bronze B-1
Tempers: H04 hard
Solids: 3/8" to 2 1/2" O.D.
Hex: 3/8" to 2" O.D.
Standard lengths: 144"

Typical uses

Industrial: Bearings, bushings, fasteners

Similar or equivalent specification

CDA ASTM SAE AMS Federal Military Other
C53400 B139
B139M		          

Chemical composition

Cu% Pb% Sn% Zn% Fe% P%
Chemical composition according to ASTM B139/B139M-12(2017)

Note: Cu + sum of named elements, 99.5% min. Single values represent maximums.
 
Rem.		 0.80-
1.20		 3.50-
5.80		  
0.30		  
0.10		 0.03-
0.35

Machinability

Copper alloy UNS No. Machinability rating Density (lb/in3 at 68 °F)
C53400 70 0.320

Mechanical properties

Mechanical properties according to ASTM B139/B139M-12(2017)

C53400

H04 hard

Size range: over 1/16" to 1/4" 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  
65 450     8 86  
Size range: over 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  
60 415     10 86  
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  
55 380     12 86  
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  
50 345     15 86  

Physical properties

Physical properties provided by CDA
  US Customary Metric
Melting point - liquidus 1920 °F 1049 °C
Melting point - solidus 1750 °F 954 °C
Density 0.32 lb/in3 at 68 °F 8.91 gm/cm3 at 20 °C
Specific gravity 8.91 8.91
Electrical conductivity 15% IACS at 68 °F 0.08 MegaSiemens/cm at 20 °C
Thermal conductivity 40 Btu/sq ft/ft hr/°F at 68 °F 69.28 W/m at 20 °C
Coefficient of thermal expansion 68-572 9.9 ·10-6 per °F (68-572 °F) 17.1 ·10-6 per °C (20-300 °C)
Modulus of elasticity in tension 16000 ksi 110310 MPa
Modulus of rigidity 6000 ksi 41300 MPa

Fabrication properties

Fabrication properties provided by CDA
Technique Suitability
Soldering Excellent
Brazing Good
Oxyacetylene welding Poor
Gas shielded arc welding Fair
Coated metal arc welding Poor
Spot weld Fair
Seam weld Fair
Butt weld Good
Capacity for being cold worked Good
Capacity for being hot formed Poor
Machinability rating 70

Thermal properties

Thermal properties provided by CDA
*Temperature is measured in Fahrenheit.
Treatment Minimum* Maximum*
Annealing 900 1250

Common fabrication processes

Blanking, drawing, etching, forming and bending, heading and upsetting, piercing and punching, roll threading and knurling, shearing, spinning, squeezing and swaging, stamping

Common fabrication processes provided by CDA

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