UNS C36000 Free-Cutting Brass Rods – Mechanical Properties

UNS C36000 free-cutting brass has a copper content of not less than 60%.

The following table shows the mechanical properties of UNS C36000 rods as a function of heat treatment and thickness.

Temper Thickness Tensile Str. Yield Str. Elong. Rockwell Shear Str. Fatigue Str.
B C F 30T
H02 12.7 mm (<0.50 in) - - - 65 - - - 221 MPa (32 ksi) 138 MPa (20 ksi)
  12.7 mm (<0.50 in) 395 MPa (57 ksi) 170 MPa (25 ksi) 7% - - - - - -
  19.1 mm (0.75 in) 380 MPa (55 ksi) 170 MPa (25 ksi) 10% - - - - 234 MPa (34 ksi) -
  19.1 mm (0.75 in) - - - 70 - - - - -
  38.1 mm (1.5 in) 345 MPa (50 ksi) 140 MPa (20 ksi) 15% - - - - - -
  38.1 mm (1.5 in) - - - 65 - - - - -
  76.2 mm (3 in) 310 MPa (45 ksi) 105 MPa (15 ksi) 20% - - - - - -
  76.2 mm (3 in) - - - 55 - - - - -
  114.3 mm (4.5 in) 275 MPa (40 ksi) 105 MPa (15 ksi) 20% 25 - - - - -
H04 6.35 mm (0.25 in) - - - 80 - - - 262 MPa (38 ksi) -
  6.35 mm (0.25 in) 550 MPa (80 ksi) 310 MPa (45 ksi) - - - - - - -
  12.7 (0.375 in) 483 MPa (70 ksi) - - 78 - - - 234 MPa (34 ksi) -
  12.7 (0.375 in) 480 MPa (70 ksi) 240 MPa (35 ksi) 4% - - - - - -
  15.9 mm (0.625 in ) 450 MPa (65 ksi) 205 MPa (30 ksi) 6% - - - - - -
O60 <25.4 mm (1 in ) 330 MPa (48 ksi) 124 MPa (20 ksi) 15% - - - - - -
  <25.4 mm (1 in ) - - - 28 - - - 207 MPa (30 ksi) -
  38.1 mm (1.5 in ) 305 MPa (44 ksi) 18 MPa (18 ksi) 20% - - - - - -
  63.5 mm (2.5 in ) 40 (15 ksi) 25% - - - - - -

The chemical composition of UNS C36000 copper alloy is outlined in the following table.

Element Content (%)
Copper, Cu 60-63
Lead, Pb 2.5-3.0
Iron, Fe 0.35
Zinc, Zn Remainder

Equivalent materials to UNS C36000 copper alloy are:

  • ASTM B16
  • SAE J461
  • SAE J463

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