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. C86300

High Tensile Manganese Bronze , SAE 430B , CDA 863

Chemical Composition % by weight


Element Nominal Minimum Maximum
Aluminum 6 5 7.5
Copper 63 60 66
Iron 3 2 4
Lead - - .20
Manganese 3 2.5 5
Nickel - - 1
Tin - - .20
Zinc 25 22 28



Extra heavy duty high strength alloy for large valve stems, gears, cams, slow speed heavy load bearings, screw down nuts, hydraulic cylinder parts

Mechanical Properties

M07 - As Continuous Cast

Hardness* Brinell Hardness (3000 kg load) 225
Tensile Strength** KSI 110 min
Yield Strength ** KSI (0.5% Ext. under load) 62 min
Elongation** % in 2 inch 14

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

Physical Properties

Thermal Conductivity BTU/ (sq ft-ft-hr-F) 20.5
Specific Heat BTU/lb/F @ 68F .09
Thermal Expansion Per F from 68 F to 500 F .000012
Density lb/cu in @ 68 F .283
Electrical Conductivity* (Annealed) % IACS @ 68 F 8
Modulus of Elasticity KSI 14,200

*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) 20
Suitability for being joined by: Soldering/Poor
  Oxyacetylene Welding/Poor
  Gas Shielded Arc Welding/Poor
  Coated Metal Arc Welding/Good

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.

+ +