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Model No: Waspaloy Round Bar
AMS 5708 Waspaloy Round Bar
AMS 5708 Waspaloy round bar is a premium nickel-based superalloy offering outstanding strength, oxidation resistance, and thermal stability. Its rigorous heat treatment and advanced manufacturing processes ensure reliability in extreme environments. For high-quality Waspaloy bars, sheets, and plates, Lork Group provides industry-leading materials with flexible ordering options.
Delivery :
FOB
minimum order :
50 kilograms
Supply Ability :
5000Tonkilograms / Month
Stock Time :
7-10Day
Country of Origin :
CHINA
Quantity :
Waspaloy is a high-performance nickel-based superalloy known for its exceptional strength and oxidation resistance at elevated temperatures. Conforming to AMS 5708, the alloy is particularly favored for aircraft fasteners, turbine blades, and high-stress bolting applications due to its ability to maintain structural integrity at temperatures up to 1500°F (816°C) and resist oxidation up to 1750°F (954°C).
Lork Group supplies AMS 5708 Waspaloy round bars, sheets, and plates, ensuring high-quality material with no minimum order restrictions on stock items.
Chemical Composition
| Element | Percent by Weight |
|---|---|
| C | 0.02 - 0.10% |
| Mn | 0.10% max |
| Si | 0.15% max |
| P | 0.015% max |
| S | 0.015% max |
| Cr | 18.00 - 21.00% |
| Co | 12.00 - 15.00% |
| Mo | 3.50 - 5.00% |
| Ti | 2.75 - 3.25% |
| Al | 1.20 - 1.60% |
Mechanical Properties
| Hardness | BHN 302 max / Rockwell C 34-44 |
| Density | 0.296 lbs/in3, 8.19 g/cm3 |
Manufacturing Process
Waspaloy round bars are produced using advanced melting techniques to ensure purity and uniformity. The most common methods include:
- Vacuum Induction Melting (VIM) followed by Vacuum Arc Remelting (VAR)
- Vacuum Induction Melting (VIM) followed by Electroslag Remelting (ESR)
These processes eliminate impurities and enhance mechanical properties, making the alloy suitable for critical high-temperature applications.
AMS 5708 Heat Treatment
To achieve optimal hardness and strength, AMS 5708 Waspaloy undergoes a precise heat treatment process:
Solution Treatment
- Heat to 1975°F (1079°C) in a vacuum induction furnace.
- Air cool for 4 hours to achieve a hardness of 20-25 HRC.
Stabilization
- Reheat to 1550°F (845°C) using VAR or ESR methods.
- Air cool for 24 hours to stabilize the microstructure.
Age Hardening
- Reheat to 1400°F (760°C).
- Air cool for 16 hours to achieve a final hardness of 34-40 HRC.
Note: Scale may form during heat treatment in oxidizing environments, but it does not affect material properties. It can be removed via acid pickling or mechanical methods.
Weldability and Fabrication
- Welding: AMS 5708 can be welded using argon-arc methods with AMS 5828 Waspaloy filler metal. However, welding is not recommended for high-stress applications due to potential cracking.
- Hot Working: Performed at 2140-1800°F (1170-980°C).
- Cold Working: Includes hydroforming, drawing, spinning, bending, and rolling.
Applications of AMS 5708 Waspaloy
Due to its superior high-temperature performance, AMS 5708 is used in:
- Aircraft engine components (turbine blades, discs, fasteners)
- Gas turbine parts
- High-stress bolts and fasteners
- Power generation equipment
AMS 5708 Waspaloy round bar is a premium nickel-based superalloy offering outstanding strength, oxidation resistance, and thermal stability. Its rigorous heat treatment and advanced manufacturing processes ensure reliability in extreme environments. For high-quality Waspaloy bars, sheets, and plates, Lork Group provides industry-leading materials with flexible ordering options.
For more details on AMS 5708 specifications and availability, contact Lork Group today.
