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C65500 High Silicon Bronze

ASTM B96, ASTM B98, ASTM B248, ASME SB96, ASME SB98, ASTM B100, QQ-C-591E,DIN 2.1525, BS 2870 CS101, BS 2874 CS101,BS 2875 CS101, EN CW116C, ASTM B124/B124M, SAE J461, SAE J463, UNS C65500

Level 4
Level 3
Level 2
Coated Metal Arc Welding

Farmer’s Copper Ltd. inventories a large amount of Silicon Bronze C65500 in plate, sheet, rod, pipe, and fittings. Its high-strength, corrosion resistance, and resilience and formability make silicon bronze among the most widely used copper alloys. Copper alloy 655 is corrosion resistant against most acids, alkalies, salts and organic chemicals. In addition, C655 is excellent hot and cold workability, along with weldability make this alloy superior for the sculpture and architectural industry.

Farmers Copper has the following specs for C655 silicon bronze in stock:

  • ASTM B96
  • ASTM B98
  • ASTM B248
  • ASME SB96
  • ASME SB98
  • ASTM B100
  • QQ-C-591E
  • DIN 2.1525
  • BS 2870 CS101
  • BS 2874 CS101
  • BS 2875 CS101
  • EN CW116C
  • ASTM B124/B124M
  • SAE J461
  • SAE J463
  • UNS C65500

C65500 High Silicon Bronze Shapes

C65500 High Silicon Bronze Sizing

  • Round Bar (1/4” dia to 6”)
  • Plate (3/16” thick to 1”)
  • Sheet (.064”, .125”)
  • Fittings (Threaded Couplings & Plugs made to order)
  • Flanges (Weldneck & Blinds)

C65500 High Silicon Bronze Applications

  • Pole line hardware
  • Marine hardware
  • Fasteners
  • Bushings
  • Shafting
  • Electrical
  • Industrial


Farmer’s Copper Ltd. extends its services throughout many industries. We provide the raw copper alloy materials in various standard shapes as well as custom cut copper alloys.

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Our C65500 High Silicon Bronze Inventory & Properties

Farmer’s diverse inventory of products and services offered provides our customers the largest and most extensive selection of alloys available, cut to precise specifications, and delivered with total quality control.

Chemical Properties

Cu(1,2)PbZnFe Ni(3) MnSi
Min (%) 0.50 2.8
Max (%) Rem0.

Physical Properties

Melting Point - Liquidus°F 1880Melting Point - Liquidus°F 1880
Melting Point - Solidus°F 1780Melting Point - Solidus°F 1780
Densitylb/cu in. at 68°F 0.308Densitylb/cu in. at 68°F 0.308
Specific Gravity 8.53Specific Gravity 8.53
Electrical Conductivity% IACS at 68°F 7Electrical Conductivity% IACS at 68°F 7
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F 21Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F 21
Coefficient of Thermal Expansion 68-57210⁻⁶ per °F (68 – 572°F) 10Coefficient of Thermal Expansion 68-57210⁻⁶ per °F (68 – 572°F) 10
Specific Heat CapacityBtu/ lb /°F at 68°F 0.09Specific Heat CapacityBtu/ lb /°F at 68°F 0.09
Modulus of Elasticity in Tensionksi 15000Modulus of Elasticity in Tensionksi 15000
Modulus of Rigidityksi 5600Modulus of Rigidityksi 5600

Fabrication Properties

Technique SuitabilityTechnique Suitability
Soldering GoodSoldering Good
Brazing ExcellentBrazing Excellent
Oxyacetylene Welding GoodOxyacetylene Welding Good
Gas Shielded Arc Welding ExcellentGas Shielded Arc Welding Excellent
Coated Metal Arc Welding FairCoated Metal Arc Welding Fair
Spot Weld ExcellentSpot Weld Excellent
Seam Weld ExcellentSeam Weld Excellent
Butt Weld ExcellentButt Weld Excellent
Capacity for Being Cold Worked ExcellentCapacity for Being Cold Worked Excellent
Capacity for Being Hot Formed ExcellentCapacity for Being Hot Formed Excellent
Forgeability Rating 40Forgeability Rating 40
Machinability Rating 30Machinability Rating 30

Mechanical Properties

FormTemperTemper CodeTensile Strength (ksi)YS-0.5% Ext (ksi)Elongation (%)Rockwell B scaleRockwell F scaleRockwell 30T scaleShear Strength (ksi)Torsion Modulus (ksi)Fatigue Strength** (ksi)Ultimate Tensile Strength in Shear (ksi)Section Size (in)Cold Work (%)
Flat Products1/2 HardH02 78 Typ45 Typ 17 Typ87 Typ 75 Typ 50 Typ0.04
1/4 HardH0168 Typ 35 Typ30 Typ75 Typ67 Typ 47 Typ0.04
Extra HardH06104 Typ60 Typ6 Typ96 Typ80 Typ60 Typ0.04
HardH0494 Typ58 Typ8 Typ93 Typ 78 Typ 57 Typ0.04
Nominal Grain Size 0.015 mmOS01563 Typ30 Typ55 Typ66 Typ90 Typ45 Typ 0.04
Nominal Grain Size 0.035 mmOS03560 Typ 25 Typ60 Typ62 Typ 85 Typ43 Typ 0.04
Nominal Grain Size 0.070 mmOS07056 Typ 21 Typ 63 Typ40 Typ76 Typ42 Typ 0.04
SpringH08 110 Typ62 Typ4 Typ97 Typ81 Typ63 Typ 0.04
Flat Products & WireNominal Grain Size 0.035 mmOS03560 Typ25 Typ 60 Typ43 Typ0.08
SpringH08145 Typ70 Typ3 Typ63 Typ0.08 80
H08110 Typ62 Typ4 Typ58 Typ0.04
Flat Products, Rod & Bar1/2 HardH0298 Typ57 Typ8 Typ52 Typ0.08
H0278 Typ 45 Typ35 Typ50 Typ1
H0278 Typ45 Typ17 Typ 0.04
Rod1/2 HardH0278 Typ45 Typ35 Typ 85 Typ52 Typ62 Typ1
Extra HardH06108 Typ60 Typ13 Typ95 Typ 5.7 Typ 1
Hard H0492 Typ55 Typ22 Typ90 Typ58 Typ 30 Typ1
Nominal Grain Size 0.050 mmOS050 58 Typ22 Typ60 Typ60 Typ43 Typ43 Typ1
Rod & TubingNominal Grain Size 0.050 mmOS05058 Typ22 Typ60 Typ1
OS05057 Typ70 Typ
TubeHard DrawnH8093 Typ 22 Typ92 Typ78 Typ0.065
Nominal Grain Size 0.050 mmOS05057 Typ70 Typ 45 Typ 0.065

Our Commitment to Service

As a leading copper, brass, & bronze alloys supplier, Farmers Copper Ltd. attributes our success to serving our customers, through our service-minded employees and material readily available for prompt, accurate deliveries of copper, brass, bronze, stainless steel and other metal alloys.

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