Tin Bronze

ASTM B505

Farmer’s Copper Ltd. keeps a regular stock of Tin Bronze C90300 in solid bar form. C90300 offers good mechanical and corrosion resistance; it’s often used in castings for liquid and gas, not to mention valves and pumps. In addition to the many qualities C903 possesses, it offers a high wear resistance making it an ideal candidate to many jobs. Copper Alloy 903 offers a machinability rating of 30 and cannot be strengthened by heat treatment.

C90300 Tin Bronze

Applications

  • Seal rings
  • Bushings
  • Bearings
  • Valve Components

Farmer’s Copper Ltd. continues to serve the metal industry as it has for over 90 years. Contact one of our knowledgeable sales representatives to inquire about your tin bronze 903 needs!

Fabrication Properties

Joining Technique

Suitability

Soldering

Excellent

Brazing

Good

Oxyacetylene Welding

Fair

Gas Shielded Arc Welding

Fair

Coated Metal Arc Welding

Fair

Machinability Rating

30

ASTM Standard Designation for C90300: ASTM B505

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

 

Cu(1)

Al

Sb

Fe

Pb

Ni(2)

P(3)

Si

S

Sn

Zn

Min./Max.

86.0-89.0

.005

.20

.20

.30

1.0

.05

.005

.05

7.5-9.0

3.0-5.0

Nominal

87.5

-

-

-

-

-

-

-

-

8.3

4.0

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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