Shree Extrusions Limited
C66700 Manganese Brass

C66700 Manganese Brass

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C66700 Manganese Brass

Excellent hot and cold workability; good forge ability. Fabricated by bending, coining, coppersmith, drawing and upsetting, hot forging and pressing, knurling, roll threading, shearing, spinning, swaging, and stamping.

Common Fabrication Processes
Resistance Welding
Seam and Butt Welding
Spot Welded Components
Equivelent Specifications
ISO C67300
Europen C67400
BS C67420
Australia 673

Chemical Composition:

Cu Fe Pb Mn Zn
Min/Max 68.5-71.5 0-0.1 0-0.07 0.8-1.5 Rem

Typical uses
Product Category Product Reason Category Reason
Industrial Resistance Weldable Brass Products Corrosion Resistance Corrosion Resistance
  Resistance Weldable Brass Products Mechanical Properties Moderate Strength
  Resistance Weldable Brass Products Welding Characteristics Weldability

Physical Properties
Melting Point - Liquidus°F 2000
Melting Point - Solidus°F 1920
Densitylb/cu in. at 68°F 0.31
Specific Gravity 8.53
Electrical Conductivity% IACS at 68°F 17
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F 56
Coefficient of Thermal Expansion 68-57210?6 per °F (68 – 572°F) 11.1
Specific Heat CapacityBtu/ lb /°F at 68°F 0.09
Modulus of Elasticity in Tensionksi 16000

Thermal Properties
Treatment Minimum* Maximum*
*Measured in Fahrenheit    
Annealing 930 1300
Hot Treatment 1340 1560

Fabrication Properties
Technique Suitability Footnote
Soldering Excellent  
Brazing Excellent  
Oxyacetylene Welding Good  
Gas Shielded Arc Welding Fair  
Coated Metal Arc Welding Not Recommended  
Spot Weld Excellent  
Seam Weld Excellent  
Butt Weld Excellent  
Capacity for Being Cold Worked Excellent  
Capacity for Being Hot Formed Fair Actually fair to good.
Machinability Rating 30