ToughMet® Nickel Bronze 729 / C729 / C72900

Farmer’s Copper Ltd. maintains an extensive inventory of Brush Wellman spinodal alloy ToughMet 3 Copper Nickel Tin C729 (AT Temper) in rod form. Copper alloy 729 is an excellent alternative to nickel alloys, aluminum bronzes, and beryllium copper. C729 ToughMet alloys are anti-galling, free of lead and beryllium, and show excellent corrosion and stress corrosion cracking resistance in seawater applications. ToughMet (C72900) has exceptional high strength, excellent machinability, and is non-magnetic.

Typical Applications for C72900

  • Drilling and mining equipment
  • Aircraft bearings and bushings
  • Pump parts
  • Thrust washers

Farmer’s Copper Ltd. established in 1920, is always willing to meet the specifications set by our customers. Contact one of our knowledgeable sales teams to inquire about how we can meet your bronze needs!

List of standard sizes

Round rod – ½” Dia. thru 8 3/8”

Fabrication Properties

Joining Technique

Suitability

Soldering

Excellent

Brazing

Excellent

Oxyacetylene Welding

Good

Gas Shielded Arc Welding

Excellent

Coated Metal Arc Welding

Excellent

Spot Weld

Excellent

Seam Weld

Excellent

Butt Weld

Excellent

Capacity for Being Cold Worked

Excellent

Capacity for Being Hot Formed

Good

ASTM Standard Designation for C72900: ASTM B251

Chemical Composition
(%max., unless shown as range or min.)

 

Cu(1)

Fe

Pb(2)

Mg

Mn

Ni(3)

Nb

Sn

Zn

Min./Max.

Rem.

.50

.02

.15

.30

14.5-15.5

.10

7.5-8.5

.50

Nominal

77.0

-

-

-

-

15.0

-

8.0

-

Contact one of our sales representatives today
to inquire about a quote from Farmers Copper
or call us today at (800) 231-9450



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