Alloy Information Report for Waspaloy

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General Characteristics of Waspaloy

Waspaloy provides stress-rupture and tensile strength to 1400°F (760°C) and resists oxidation to 1600°F (871°C). This vacuum-inducting melted nickel alloy is ideally suited for high-heat applications, including gas turbine engines and airframe and missile components.

Chemical Composition of Waspaloy

• Carbon 0.10 max
• Manganese 0.75 max
• Silicon 0.75 max
• Sulfur 0.030 max
• Iron 2.0 max
• Copper 0.50 max
• Cobalt 12.00-15.00
• Molybdenum 3.50-5.00
• Titanium 2.60-3.25
• Aluminum 1.00-1.60
• Zirconium 0.02-0.12
• Boron 0.003-0.010
• Chromium 18.00-21.00
• Nickel balance

Heat Treatment of Waspaloy

• Maximum room and raised temperature tensile characteristics
  • Hold at 1825°F (996°C) for 4 hours
  • After oil quench, reheat to 1550°F (843°C)
  • Air cool
  • Hold at 1400°F (760°C) for 16 hours
  • Air cool to Rockwell C32-38
• High-temperature stress rupture and creep characteristics
  • Hold at 1975°F (1079°C) for 4 hours
  • Air cool to Rockwell C20-25
  • Hold at 1550°F (843°C) for 24 hours
  • Air cool
  • Hold at 1400°F (760°C)  for 16 hours
  • Air cool to Rockwell C32-38

Applications of Waspaloy

• Jet and missile industry components, including:
  • Engine turbine buckets and discs
  • High-heat fasteners and bolts
  • Air frame assemblies

Machinability of Waspaloy

• Heat treatment and fabrication presents challenges
• Machine after solution treating and partial aging to Rockwell C30
• Solution treatment and Rockwell C20 for drilling and tapping
• High-speed steel turning tools
• Shock-resistant carbide-tipped tools for fully age-hardened material

Workability of Waspaloy

• Easily worked at high temperatures
• 2150° to 1850°F (1177° to 1010°C)
• Neutral or slightly oxidizing furnace atmosphere
• Cold form in thin sections
• Tendency to work harden
• Harder to fabricate cold than stainless steel 300

To Send a Request for Quote for Waspaloy, please Click Here, or call 1.973.276.5000 or fax 1.973.276.5050.