C27000

C27000, which is also referred to as C2700, C270, 270, 2700, and 27000, belongs to a family of brass alloys known for their relatively robust corrosion resistance, moderately high strength, and, in certain variations, excellent ductility. These alloys come in a variety of forms, including rod, bar, sheet, plate, and more.

CHEMICAL COMPOSITION
Elements Min (%) Max (%)
Cu 63.00 68.50
Pb 0.09
Fe 0.07
Total Others 0.30 Max
Zn Remainder
(1) Cu + Sum of Named Elements 99.7% min.
MECHANICAL PROPERTIES ACCORDING TO UNS J463 (AS PER TEMPER HO2)
Range (mm) From To UTS Min (MPa) UTS Max (MPa) PS Min (MPa) Elongation Min (%) Hardness Min Hardness Max
Round (Dia) 1.5 12 545 650
Hex (A/F) 3 12 545 650
Square (A/F) 3 12 545 650
PHYSICAL PROPERTIES
Melting Point – Liquidus°F 1710
Melting Point – Solidus°F 1660
Density lb/cu in. at 68°F 0.306
Specific Gravity 8.47
Electrical Conductivity % IACS at 68°F 27
Thermal Conductivity Btu/ sq ft/ ft hr/ °F at 68°F 67
Coefficient of Thermal Expansion 68-57210⁻⁶ per °F (68 – 572°F) 11.3
Specific Heat Capacity Btu/ lb /°F at 68°F 0.09
Modulus of Elasticity in Tension ksi 15000
Modulus of Rigidity ksi 5600
FABRICATION PROPERTIES 
Technique Suitability
Soldering Excellent
Brazing Excellent
Oxyacetylene Welding Good
Gas Shielded Arc Welding Fair
Coated Metal Arc Welding Not Recommended
Spot Weld Good
Seam Weld Not Recommended
Butt Weld Good
Capacity for Being Cold Worked Excellent
Capacity for Being Hot Formed Poor
Machinability Rating 30

C27000

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