Waspaloy Nickel & Cobalt Alloy

JIANGSU STEEL GROUP Inquiries :

1. Commodity:Waspaloy Nickel & Cobalt Alloy

2. Grade:Waspaloy

3. AMS SPEC:AMS 5544, 5706-07-08-09, 5828

4. Certification:ISO

8. Length: As your requests

10.Delievery Time:According to your size and quantity or as require

11.Payment term:TT/ LC

12. Application：Industry,building materials,machinery,construction.

Material Data Sheet

Waspaloy is an age-hardened austenitic,face-centered cubic nickel-based superalloy. Waspaloy is typically used inhigh-temperature applications, particularly in gas turbines. It demonstratessuperior strength properties and good oxidation resistance in gas turbineengine atmospheres through temperatures up to 1600°F. The creep-rupturestrength of Waspaloy is superior to that of alloy 718 at temperaturesabove 1150-1200°F. Short time hot tensile strength is inferior to alloy 718 attemperatures up to 1350°F.

A typical heat treatment is a solution heatteat at 1825°F for 2 hours, air cool. Stabilize heat treat at 1550°F for 4hours, air cool.
Precipitation heat treat at 1400°F for 16 hours, air cool.

Other characteristics of Waspaloy includegood corrosion resistance, as well as being relatively impervious to oxidationmaking it well suited for service in extreme environments such as gas turbineblades, seals, rings, shafts, and turbine disks.

Welding Waspaloy is difficult, and bestperformed on the material in the solution annealed condition. Matching alloyfiller metal should be used. If matching alloy is not available then thenearest alloy richer in the essential chemistry (Ni, Co, Cr, Mo) should beused. Limit currents and the size of the fusion zone. Rapid cooling fromwelding is necessary to minimize aging stresses. Copper backup bars orwater-cooled fixtures are desirable.

Waspaloy does work-harden during machiningand has higher strength and “gumminess” not typical of steels. Heavy-dutymachining equipment and tooling should be used to minimize chatter orwork-hardening of the alloy ahead of the cutting. Most commercial coolant maybe used in the machining operations. Water-base coolants are preferred forhigh-speed operations such as turning, grinding, or milling. Heavy lubricantswork best for drilling, tapping, broaching or boring.

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