C26800

DESCRIPTION

CuZn33, is combining excellent cold forming properties with good mechanical strength. CuZn33 has good hot forming properties and excellent soldering and brazing properties. Due to the Outstanding deep drawing properties CuZn33 are called “deep-draw” brass.

CHEMICAL COMPOSITION

Elements Min (%) Max (%)
Cu 64.00 68.50
Pb - 0.09
Fe - 0.05
Total Others - 0.30
Zn Remainder

MECHANICAL PROPERTIES ACCORDING TO ASTM B927 (AS PER TEMPER HO2)

Range (Inch) From To UTS Min (ksi) PS Min  (ksi) Elongation Min (%) Hardness Min Hardness Max
Round (Dia) 0.059 0.500 53 33 10 - -
0.500 1.000 48 30 13 - -
1.000 2.953 43 28 15 - -
Hexagon (A/F) 0.118 0.500 53 33 10 - -
0.500 1.000 48 30 13 - -
1.000 2.756 43 28 15 - -
Square (A/F) 0.118 0.500 53 33 10 - -
0.500 1.000 48 30 13 - -
1.000 2.362 43 28 15 - -
Rectangle (Thickness) 0.118 0.500 53 33 10 - -
0.500 1.000 48 30 13 - -
1.000 1.969 43 28 15 - -
Range (Inch) From To UTS Min (ksi) PS Min  (ksi) Elongation Min (%) Hardness Min Hardness Max
Round (Dia) 1.5 12 365 230 10 - -
12 25 330 205 13 - -
25 75 295 195 15 - -
Hexagon (A/F) 3 12 365 230 10 - -
12 25 330 205 13 - -
25 70 295 195 15 - -
Square (A/F) 3 12 345 170 10 - -
12 25 310 115 20 - -
25 50 275 105 20 - -
Rectangle (Thickness) 3 12 345 170 10 - -
12 25 310 115 20 - -
25 50 275 105 20 - -
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

TYPICAL USES

  • Fasteners
  • Architecture
  • Automotive
  • Builders Hardware
  • Electrical
  • Marine
  • Plumbing