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Alloy 630 Nickel Aluminum Bronze

Sequoia Brass & Copper sells alloy 630 nickel aluminum bronze. This is a nickel aluminum bronze and is widely used when even greater strength than aluminum bronze is required, such as for cam bearings, pump agitators, shafts and aircraft parts.

This extruded aluminum bronze contains nickel and has excellent strength and toughness. Soldering and oxyacetylene welding are not recommended, however 630 nickel aluminum bronze has a forgeability rating of 75 and is used where high mechanical properties are required. 630 nickel aluminum bronze comes in bar, rod, and shapes product forms.

  • Chemical Composition
  • Fabrication Properties
  • Casting Characteristics
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  • Typical Uses
  Cu Al Fe Mn Ni Si Sn Zn
Min/Max Rem. 9.0 - 11.0 2.0 - 4.0 1.5 4.0 - 5.5 0.25 0.2 0.3
Nominal 82 10 3 5
Joining Technique Suitability
Soldering Not Recommended
Brazing Fair
Oxyacetylene Welding Not Recommended
Gas Shielded Arc Welding Good
Coated Metal Arc Welding Good
Spot Weld Good
Seam Weld Good
Butt Weld Good
Capacity for Being Cold Worked Poor
Capacity for Being Hot Formed Good
Forgeability Rating: 75
Machinability Rating: 30
Product Forms
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Common Fabrication Processes For
630 Nickel Aluminum Bronze

Forging, hot forming

Typical Uses

Valve seats, plunger tips, condenser tube for power stations and desalting units, shafting, pump parts, cams, gears, valve guides, aircraft parts, pum shafts, structural members, corrosion resistant articles, hudraulic bushings for earth moving equipment, valve balls, bushing, bearings, heat exchanger flanges, heat exchanger headers, tanks, welded piping systems, balls
Nuts, ship propellers, pump parts, bolts, propellers