UNS C35300 High Leaded Brass Flat Products – Mechanical Properties

UNS C35300 high leaded brass has a copper content of not less than 60%.

The following table shows the mechanical properties of UNS C35300 flat products as a function of heat treatment and thickness.

Temper Thickness Tensile Str. Yield Str. Elong. Rockwell Shear Str.
B C F 30T
H01 1 mm (0.04 in) 372 MPa (54 ksi) 276 MPa (40 ksi) 38% 55 - - 54 248 MPa (36 ksi)
  <12.7 mm (<0.50 in) 448 MPa (65 ksi) - - - - - - -
  19.1 mm (0.75 in) 427 MPa (62 ksi) - - - - - - -
  19.1 mm (0.75 in) 345 MPa (50 ksi) 138 MPa (20 ksi) 15% - - - - -
  34.9 mm (1.375 in) 427 MPa (62 ksi) - - - - - - -
H02 1 mm (0.04 in) 421 MPa (61 ksi) 345 MPa (50 ksi) 20% 70 - - 65 276 MPa (40 ksi)
  <12.7 mm (<0.50 in) 552 MPa (80 ksi) - - - - - - -
  19.1 mm (0.75 in) 483 MPa (70 ksi) - - - - - - -
H04 1 mm (0.04 in) 510 Ma (74 ksi) 414 MPa (60 ksi) 7% 80 - - 69 296 MPa (43 ksi)
H06 1 mm (0.04 in) 586 MPa (85 ksi) 427 MPa (62 ksi) 5% 87 - - 74 310 MPa (45 ksi)
OS035 1 mm (0.04 in) 338 MPa (49 ksi) 117 MPa (17 ksi) 52% - - 68 31 234 MPa (34 ksi)

The chemical composition of UNS C35300 copper alloy is outlined in the following table.

Element Content (%)
Copper, Cu 60-63
Lead, Pb 1.5-2.5
Iron, Fe 0.15
Zinc, Zn Remainder

Equivalent materials to UNS C35300 copper alloy include:

  • ASTM B121
  • ASTM B453

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