Click for Home
Click for Home Click for Profile Brass Parts Fittings manufacturers, exporters of competitive brass plumbing, cable glands, hose fittings, electrical components, screws and brass fittings Brass Parts Fittings brass plumbing fittings electrical components electrical accessories brass hardware Hose Fittings Brass Wood Screws Brass Pipe Fittings Brass Nuts Brass Components Brass Fittings Brass Turned Parts India manufacturers Brass Nuts Brass Fasteners copper lugs hose barbs SS fittings hose connectors Brass inserts sanitary fittings Click for Email Click for Resources Click for Feedback Click for Downloads
Click for Manufacturing site
Click for Export World
Click for Contact us
Click for Site Map
Click for FAQ
Click for Packaging Information

Copper Alloy No. C94300

High Leaded Tin Bronze CDA 943

ASTM B 505 , ASTM B 271

Chemical Composition % by weight


Element Nominal Minimum Maximum
Aluminum - - .005
Antimony - - .8
Copper 69.5 67 72
Iron - - .15
Lead 25 23 27
Nickel - - 1
Phosphorus - - .05
Silicon - - .005
Sulfur - - .08
Tin 5.3 4.5 6
Zinc - - .8



High speed bearings for light loads


Mechanical Properties


M07 - As Continuous Cast

Hardness* Brinell Hardness (500 kg load) 48
Tensile Strength** KSI 21 min
Yield Strength ** KSI (0.5% Ext. under load) 15 min
Elongation** % in 2 inch 7 min

**Test values are nominal approximations and depend on specimen size and orientation.

Physical Properties

Thermal Conductivity BTU/ (sq ft-ft-hr-F) 36.2
Specific Heat BTU/lb/F @ 68F .09
Thermal Expansion Per F from 68 F to 392 F N/A
Density lb/cu in @ 68 F .336
Electrical Conductivity* (Annealed) % IACS @ 68 F 9
Modulus of Elasticity KSI 10,500

*Volume basis

Fabrication Practices

Stress relieving temperature 500 F or 260 C
Time at temperature 1 hour per inch of section thickness
Responds to heat treatment No
Machinability rating (Free Cutting Brass=100) 80
Suitability for being joined by: Soldering/Good
  Oxyacetylene Welding/Not Recommended
  Gas Shielded Arc Welding/Not Recommended
  Coated Metal Arc Welding/Not Recommended

*Since brazing is performed at temperatures within the hot-short range, strain must be avoided during the brazing and cooling of this alloy.

The values listed above represent reasonable approximations suitable for general engineering use. Due to commercial variations in composition and to manufacturing limitations, they should not be used for specification purposes. See applicable A.S.T.M. specification references.

© 1998 Conex Metals.

+ +