Alloy Grade UNS: GTD 222® – Cast Nickel-Based Alloy

  • Overview

    GTD-222® is a cutting-edge cast nickel-based alloy developed by GE as a superior alternative to FSX-414. Designed specifically for the demanding conditions encountered in land-based gas turbine engines, this alloy exhibits exceptional tensile strength at high temperatures, making it capable of withstanding the extreme stresses and thermal cycling present in these applications. Its composition, which includes 22% chromium, contributes to enhanced corrosion resistance, ensuring long-term performance and durability in harsh environments. GTD-222® represents a significant advancement in materials technology for gas turbine applications, offering a combination of high-temperature strength and corrosion resistance to meet the evolving needs of the power generation industry.

  • Typical Uses

    Turbine engine components.

  • MetalTek Grade

    GTD 222®

  • Poured At:

    Wisconsin Centrifugal Division, Wisconsin Investcast Division

Similar Specifications

Typical Chemical Composition (% by wt.)

Aluminum: n/a

Carbon: 0.08-0.12

Chromium: 22.2-22.8

Manganese: 0.1

Iron: n/a

Copper: n/a

Nickel: BAL

Lead: n/a

Tin: n/a

Silicon: 0.25

Zinc: n/a

Other: Co 18.5-19.5; W 1.8-2.2; Ti; AI; Ta; Nb; Zr; B

Minimum Mechanical Properties

Tensile, ksi

0

Tensile, MPa

0

Calculated PREn (Minimum)

0

Yield, ksi

0

Yield, MPa

0

Elongation

0%

Heat Treatment: Solution Anneal And Age

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