UNS C49300 Lead-Free Bismuth Copper Rods – Mechanical Properties

UNS C49300 lead-free bismuth copper alloy has a copper content of not less than 58%.

The following table shows the mechanical properties of UNS C49300 rods as a function of heat treatment and thickness.

Temper Thickness Tensile Str. Elong.
H02 25.4 mm (1 in) 462 MPa (67 ksi) 9%
H04 5.1 mm (0.02 in) 517 MPa (75 ksi) 5%
M30 25.4 mm (1 in) 427 MPa (62 ksi) 20%
O61 25.4 mm (1 in) 441 MPa (64 ksi) 18%

The chemical composition of UNS C49300 copper alloy is outlined in the following table.

Element Content (%)
Copper, Cu 58-62
Nickel, Ni 1.5
Tin, Sn 1-1.8
Bismuth, Bi 0.50-2
Antimony, Sb 0.5
Aluminum, Al 0.5
Silicon, Si 0.1
Iron, Fe 0.1
Manganese, Mn 0.03
Selenium, Se 0.02
Phosphorous, P 0.02
Lead, Pb 0.01
Zinc, Zn Remainder

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