Alloy Grade UNS: HD – Higher Nickel

  • Overview

    HD is a specialized alloy designed for high-temperature applications where resistance to sulfur-containing gases is crucial. Its higher nickel content contributes to enhanced strength, allowing it to maintain structural integrity and resist deformation at elevated temperatures. This alloy excels in environments with high-sulfur process gases, resisting corrosion and degradation even under prolonged exposure. With a service limit of 700 degrees Celsius (1300 degrees Fahrenheit), HD provides reliable performance in demanding conditions. Its combination of strength, high-temperature resistance, and resistance to sulfur-containing gases makes it a valuable choice for specialized applications in industries where these properties are critical.

  • Typical Uses

    Cement kiln parts, gas parts, holding pots, pour spouts, rabble arms.

  • MetalTek Grade

    MTEK 27-5

  • Poured At:

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

Similar Specifications

Cast UNS: J93015

Cast Grade: HD

Cast ASTM: A297, A608

Typical Chemical Composition (% by wt.)

Aluminum: n/a

Carbon: 0.5

Chromium: 26-30

Manganese: 1.5

Iron: n/a

Copper: n/a

Nickel: 4.0-7.0

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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