UNS C35000 Medium Leaded Brass Rods – Mechanical Properties

Nov 15 2012

UNS C35000 medium leaded brass has a copper content of not less than 60%.

The following table shows the mechanical properties of UNS C35000 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% - - - - -
  19.1 mm (0.75 in) 221 MPa (32 ksi) 69 MPa (10 ksi)   60 - - 57 262 MPa (38 ksi)
  34.9 mm (1.375 in) 290 MPa (42 ksi) 138 MPa (15 ksi) 20%
  34.9 mm (1.375 in) 427 MPa (62 ksi) - - - - - - -
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 (17 ksi) - - - - - - -
  19.1 mm (0.75 in) - - - 80 - - 30 290 MPa (42 ksi)
  19.1 mm (0.75 in) 378 MPa (55 ksi) 172 MPa (25 ksi) 10% - - - - -
  34.9 mm (1.375 in) 345 MPa (50 ksi) 138 MPa (20 ksi) 15% - - - - -
  34.9 mm (1.375 in) 427 MPa (62 ksi) - - - - - - -
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% - - - - -
OS015 12.7 mm (0.50 in) 379 MPa (55 ksi) 172 MPa (25 ksi) 46% - - 85 50 248 MPa (36 ksi)
OS050 12.7 mm (0.50 in) 331 MPa (48 ksi) 110 MPa (16 ksi) 56% - - 65 25 -

The chemical composition of UNS C35000 copper alloy is outlined in the following table.

Element Content (%)
Copper, Cu 60-63
Lead, Pb 0.8-2
Iron, Fe 0.15
Zinc, Zn Remainder

Equivalent materials to UNS C35000 copper alloy include:

  • ASTM B121
  • ASTM B453
  • SAE J461
  • SAE J463

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