C22600 (ASTM B36) Jewelry Bronze Alloy Data Specifications

The attractive golden hue of this metal makes it easy to understand how it received the name Jewelry Bronze. This beautiful brass can be buffed and lacquered to display its natural color, or used as a base for gold plating. Its moderate strength, resistance to corrosion, electrical conductivity and ability to be deep drawn make C226 a great material option for many design engineers working on functional applications including hinges, doorknobs, and select electrical connectors. For more information contact Olin Brass Market Development Engineering at 618-258-5255, OlinBrass.com or email us at info@olinbrass.com.

 

Chemical Composition

Copper1 86.0-89.0%
Zinc Remainder
Lead 0.05% max
Iron 0.05% max

1Copper plus named elements, 99.8% min

 

Physical Properties

  English Units Metrics Units
Density 0.317 lb/in3 @ 68oF 8.78 g/cm3
Thermal Conductivity 100 BTU-ft/ft2-hr-oF 173 W/mK
Electrical Resistivity 26 ohm circ mils/ft 4.31 microhm-cm
Electrical Conductivity (annealed) 40% IACS* 0.232 megamho/cm
Modulus of Elasticity 17,000,000 psi 117 kN/mm2
Coeff. of Thermal Expansion
  68-572oF (20-300oC) 10.3 PPM/oF 18.54 PPM/oC

*International Annealed Copper Standard

Mechanical Properties

Temper1 Tensile Strength Yield Strength2 % Elongation2 Typical 90o Bend Formability GW/BW3
ksi N/mm2 ksi N/mm2
Annealed (Soft)4 37-45 255-310 15 105 40 - -
1/4 Hard 42-52 290-360 32 220 28 - -
1/2 Hard 49-59 340-405 50 345 19 - -
3/4 Hard 55-65 380-450 58 400 9 0.3 0.8
Hard 60-69 415-475 62 425 6 0.8 1.3
Extra Hard 69-77 475-530 70 485 4 1.3 2.0
Spring 75-83 515-570 76 525 3 1.8 3.0
Extra Spring 78-86 540-595 78 540 3 max

1Mechanical properties subject to change. All rolled-tempers are accepted or rejected based on Tensile Strength.
2Nominal Values in 2" (51mm)
3DATA FOR REFERENCE ONLY. R/T = Bend Radius/Material Thickness <0.016" (0.4mm) thick, 11/16 (17.5mm) wide.
4Annealed temper are manufactured to a grain size only, consult mill for additional info.