High Leaded Brass Rods (UNS C35300) – 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 rods as a function of heat treatment and thickness.

Temper Thickness Tensile Str. Yield Str. Elong. Rockwell Shear Str.
B C F 30T
H01 <12.7 mm (<0.50 in) 358 MPa (52 ksi) 172 MPa (25 ksi) 10% - - - - -
<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) 290 MPa (42 ksi) 103 MPa (15 ksi) 20% - - - - -
H02 <12.7 mm (<0.50 in) 552 MPa (80 ksi) - - - - - - -
<12.7 mm (<0.50 in) 393 MPa (57 ksi) 172 MPa (25 ksi) 7% - - - - -
19.1 mm (0.75 in) 483 MPa (70 ksi) - - - - - - -
19.1 mm (0.75 in) 378 MPa (55 ksi) 172 MPa (25 ksi) 10% - - - - -
34.9 mm (1.375 in) 400 MPa (58 ksi) 310 MPa (45 ksi) 25% 75 - - - -
O60 <12.7 mm (<0.50 in) 317 MPa (46 ksi) 110 MPa (16 ksi) 20% - - - - -
19.1 mm (0.75 in) 303 MPa (44 ksi) 103 MPa (15 ksi) 25% - - - - -
34.9 mm (1.375 in) 276 MPa (40 ksi) 103 MPa (15 ksi) 30% - - - - -

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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