Alloy Grade UNS: HI – Strength, Ductility

  • Overview

    HI is a high-temperature alloy that offers a balanced combination of strength, ductility, and corrosion resistance. This alloy maintains its mechanical properties and resists degradation even under prolonged exposure to elevated temperatures. Its good strength ensures structural integrity and load-bearing capacity, while its ductility allows for some degree of deformation without fracturing. Furthermore, HI exhibits good corrosion resistance, protecting it from environmental degradation in demanding applications. With a service limit of 980 degrees Celsius (1800 degrees Fahrenheit), HI provides reliable performance in high-temperature environments where a combination of strength, ductility, and corrosion resistance is essential.

  • Typical Uses

    Billet skids, conveyor rollers, rails tube spacers, retorts.

  • MetalTek Grade

    MTEK 29-17

  • Poured At:

    Carondelet Division, Sandusky International Division, Wisconsin Centrifugal Division, Wisconsin Investcast Division

Similar Specifications

Cast UNS: J94003

Cast Grade: HI

Cast ASTM: A297, A608

Typical Chemical Composition (% by wt.)

Aluminum: n/a

Carbon: 0.20-0.50

Chromium: 26-30

Manganese: 2

Iron: n/a

Copper: n/a

Nickel: 14-18

Lead: n/a

Tin: n/a

Silicon: 2

Zinc: n/a

Minimum Mechanical Properties

Tensile, ksi

0

Tensile, MPa

0

Calculated PREn (Minimum)

0

Yield, ksi

0

Yield, MPa

0

Elongation

0%

Heat Treatment: Not Heat Treated

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