Aluminum Silicon Bronze

ASTM B150, AMS 4631C, QQ-C-465

Farmer’s Copper Ltd. maintains an inventory of C64200 aluminum silicon bronze. C642 is non-magnetic and has good fatigue and galling resistance. It has the highest machinability rating of bronzes and brasses without the addition of lead. Copper alloy 642 has a combination of machinability, strength, and, hot forgeability, and corrosion and wear resistance that make this a superior copper alloy.

C64200 Bronze

Applications

  • Aircraft bushings
  • Fasteners
  • Valve stems
  • Chemical processing equipment

Farmer’s Copper Ltd. prides itself on customer satisfaction, for information; contact one of our knowledgeable sales staff today!

List of standard sizes for C64200

Round Bar – ½” Dia. thru 6”

Fabrication Properties

Joining Technique

Suitability

Soldering

Not Recommended

Brazing

Fair

Oxyacetylene Welding

Not Recommended

Gas Shielded Arc Welding

Fair

Coated Metal Arc Welding

Fair

Spot Weld

Fair

Seam Weld

Fair

Butt Weld

Fair

Capacity for Being Cold Worked

Poor

Capacity for Being Hot Formed

Excellent

Forgeability Rating

80

Machinability Rating

60

ASTM Standard Designation for C64200: ASTM B150
AMS Standard Designation for C64200: AMS 4631c
Federal Specifications for C64200: QQ-C-465

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

 

Cu(1)

Al

As

Fe

Pb

Mn

Ni(2)

Si

Sn

Zn

Min./Max.

Rem.

6.3-7.6

.09

.30

.05

.10

.25

1.5-2.2

.20

.50

Nominal

91.2

7.0

-

-

-

-

-

1.8

-

-

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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