C51000

 

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Phosphor bronze alloys such as C51000, also known as C510, consist of copper with 0.50–11.00% of tin 天天斗牛0.01–0.35% phosphorus. The tin increases the corrosion resistance 天天斗牛strength of the alloy. The phosphorus increases the wear resistance 天天斗牛stiffness of the alloy. These alloys are notable for their toughness, strength, low coefficient of friction, 天天斗牛fine grain.

Info

Product Description: Phosphor Bronze 5% A
Tempers: H04 Hard, H08 Spring
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
Electrical: electrical connectors, electrical flexing contact blades, electromechanical spring components, electronic 天天斗牛precision instrument parts, electronic connectors, fuse clips, resistance wire, switch parts, wire brushes
Fasteners: cotter pins, fasteners, lock washers
Industrial: beater bar, bellows, bourdon tubes, chemical hardware, clutch disks, diaphragms, perforated sheets, pressure responsive elements, sleeve bushings, springs, textile machinery, truss wire, welding rods

Similar or Equivalent Specification

CDA ASTM SAE AMS Federal Military Other
C51000 B139
B139M
J461
J463
4625      

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.
 
0.05
4.20-
5.80
 
0.30
 
0.10
0.03-
0.35

Machinability

Copper Alloy UNS No. Machinability Rating Density (lb/in3 at 68 °F)
C51000 20 0.320

Mechanical Properties

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

C51000

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
70 485     13 87
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
60 415     15 87
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
55 380     18 87

C51000

H08 Spring

SIZE RANGE: 0.026" TO 1/16" ROUND 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
115 790          
SIZE RANGE: OVER 1/16" TO 1/8" ROUND 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
110 760          
SIZE RANGE: OVER 1/8" TO 1/4" ROUND 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  
105 725     3.5    
SIZE RANGE: OVER 1/4" TO 3/8" ROUND 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  
100 690     5    
SIZE RANGE: OVER 3/8" TO 1/2" ROUND 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  
90 620     9 95  

Physical Properties

Physical Properties provided by CDA
*Determined on an alloy containing 5% tin 天天斗牛.2% phosphorus. This value will vary with the composition.
  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 8.86 gm/cm3 at 20 °C
Specific Gravity 8.86 8.86
Electrical Conductivity* 15% IACS at 68 °F 0.088 MegaSiemens/cm at 20 °C
Thermal Conductivity 40 Btu/sq ft/ft hr/°F at 68 °F 69.2 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)
Specific Heat Capacity 0.09 Btu/lb/°F at 68 °F 377.1 J/kg at 20 °C
Modulus of Elasticity in Tension 16000 ksi 110310 MPa
Modulus of Rigidity 6000 ksi 41370 MPa

Fabrication Properties

Fabrication Properties provided by CDA
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 Formed Poor
Machinability Rating 20

Thermal Properties

Thermal Properties provided by CDA

*Temperature is measured in Fahrenheit.
Treatment Minimum* Maximum*
Annealing 900 1250

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