Manganese Bronze

ASTM B124, ASTM B138, ASTM B505

Farmer’s Copper Ltd. maintains an inventory of both C67500 and C86300 Manganese Bronze. C675 is a moderately high strength manganese bronze alloy possessing good torsional properties and general corrosion resistance. Copper Alloy 675 has excellent hot working properties and is readily joined by either soldering or brazing welding. C86300 is commonly used in products such as: gears, fasteners, and hydraulic parts.

Manganese Copper Alloy

Applications

  • Valve stems
  • Shafting
  • Marine hardware
  • Aircraft parts
  • Pump rods

Farmer’s Copper Ltd. has been serving the metal industry for over 90 years by meeting the wants and needs of our customers. Contact one of our knowledgeable sales teams today to assist you with your manganese bronze needs!

List of standard sizes

Round Rod (C67500) – ¾” Dia. thru 6”
Solid Rod (C86300) – 1-1/2” Dia. thru 8”

(C67500)

Fabrication Properties

Joining Technique

Suitability

Soldering

Excellent

Brazing

Excellent

Oxyacetylene Welding

Good

Gas Shielded Arc Welding

Fair

Coated Metal Arc Welding

Not Recommended

Spot Weld

Good

Seam Weld

Fair

Butt Weld

Good

Capacity for Being Cold Worked

Poor

Capacity for Being Hot Formed

Excellent

Forgeability Rating

80

Machinability Rating

30

ASTM Standard Designation for C67500: ASTM B124/B138

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

 

Cu(1)

Al

Fe

Pb

Mn

Sn

Zn

Min./Max.

57.0-60.0

.25

.8-2.0

.20

.05-.50

.50-1.5

Rem.

Nominal

58.5

-

1.4

-

.10

1.0

39.0

(C86300)

Fabrication Properties

Joining Technique

Suitability

Soldering

Poor

Brazing

Poor

Oxyacetylene Welding

Poor

Gas Shielded Arc Welding

Poor

Coated Metal Arc Welding

Good

Machinability Rating

8

ASTM Standard Designation for C86300: ASTM B505

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

 

Cu(1)

Al

Fe

Pb

Mn

Ni(2)

Sn

Zn

Min./Max.

60.0-66.0

5.0-7.5

2.0-4.0

.20

2.5-5.0

1.0

.20

22.0-28.0

Nominal

63.0

6.2

3.0

-

3.7

-

-

25.0

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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