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Home » Products » C51000 Phosphor Bronze » C51000 Phosphor Bronze Round

C51000 Phosphor Bronze Round

$0.32 – $15.87 in

C51000 Phosphor Bronze – Grade A finds use in electrical and industrial applications, as well as fasteners.

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SKU: C51000 Phosphor Bronze Round Categories: C51000 Phosphor Bronze, Phosphor Bronze Products, Wrought Alloys
  • Description
  • Tolerances
  • Specifications
  • Chemical
  • Physical
  • Mechanical
  • Fabrication

Product Description

C51000 Phosphor Bronze is a Morgan standard alloy and finds use in electrical applications, as well as fasteners and industrial applications. Uses include various electrical connectors, fasteners, cotter pins and lock washers, sleeve bushings, welding rod, springs, perforated sheets and clutch disks.

Other terms for this alloy are: C51000 Phosphor Bronze – Grade A; Phosphor Bronze Bar, 5% A; UNS C51000; ASTM B139/B139M Alloy C51000; SAE J461;J463; AMS 4625

Notice: The weights listed are the best estimates of the actual weights we will ship. They are a combination of the calculated theoretical weights and an average of actual weights. Our weights are conservative to the heavier side but there may be slight variations in weight from bar to bar.

The Physical, Fabrication and Thermal Properties shown here represent reasonable approximations suitable for general engineering use. Due to commercial variations in compositions and to manufacturing limitations, they should not be used for specification purposes.

C51000 Tolerances (inches)

Diameter (inclusive)Standard Tolerance – plus or minus
Up to 0.500″0.002
Over 0.500″ to 1.00″0.003
Over 1.00″ to 2.00″0.004
Over 2.00″0.20% of the Diameter

Equivalent Specifications

ASTM B139/ B139M

Reference Specifications

SAE J461; SAE J463
AMS 4625
Copper Alloy UNS 51000

Equivalent specifications are verified and updated annually.
Specifications shown are current as of May 4, 2010.

Chemical Composition (%)

CuSnPFePbZn
Remainder4.2 – 5.80.03 – 0.350.10 max.0.05 max.0.30 max.
Sum of all named elements = 99.5%

Physical Properties

EnglishMetric
Melting Point – Liquidus1920° F1049° C
Melting Point – Solidus1750° F954° C
Density0.320 lb/in3 at 68° F8.86 gm/cm3 @ 20° C
Specific Gravity8.8608.86
Electrical Resistivity (Annealed)69.10 ohms-cmil/ft @ 68°F11.49 microhm-cm @ 20° C
Electrical Conductivity (Annealed)15%IACS @ 68° F0.088 MegaSiemens/cm @ 20° C
Thermal Conductivity40 Btu · ft/(hr · ft2·°F) @ 68° F69.2 W/m · °K @20° C
Coefficient of Thermal Expansion9.90 · 10-6 per °F (68-572° F)17.8 ·10-6 per °C (20-300° C)
Specific Heat Capacity0.090 Btu/lb/°F @ 68° F377.1 J/kg · °K @293° K
Modulus of Elasticity in Tension16,000 ksi110,000 MPa

Physical Properties provided by CDA

Mechanical Properties

Minimum Tensile Properties, English/Metric
Temper HO4 hard
Nominal DiameterTensile StrengthElongation**
Inches/mmksiMPa%
¼”– ½” incl./6 – 12 mm. incl.7048513
Over ½” to 1” incl./12-25 mm incl.6041515
Over 1.00”/25 mm5538018
**Elongation in 4D
Chemical Composition and Mechanical Properties shown pertain to ASTM B139/B139 M only.

Machinability Rating 20 (Free Cutting Brass = 100)

Fabrication Practices

SolderingExcellentCapacity for Being Cold WorkedExcellent
BrazingExcellentCapacity for Being
Hot Formed
Poor
Oxyacetylene WeldingFair
Gas Shielded Arc WeldingGoodAnnealing Temperature – Minimum900° F or 483° C
Coated Metal Arc WeldingFairAnnealing Temperature – Maximum1250° F or 677° C
Resistance Welding – SpotGood
Resistance Welding – SeamFair
Resistance Welding – ButtExcellent

Fabrication Practices provided by CDA

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340 East IL Route 22
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