Alloy Grade UNS: HL –  Corrosion Resistance to Hot Gases

  • Overview

    HL is a high-temperature alloy that combines the strength of HK with enhanced corrosion resistance, particularly in the presence of hot gases. This alloy maintains its structural integrity and resists degradation even under prolonged exposure to elevated temperatures and corrosive environments. Its improved corrosion resistance makes it suitable for applications where components encounter hot gases containing sulfur, carbon, or other corrosive elements. With a service limit of 1025 degrees Celsius (1875 degrees Fahrenheit), HL offers reliable performance in demanding conditions. This combination of strength, high-temperature resistance, and enhanced corrosion resistance makes it a valuable choice for specialized applications in industries where these properties are critical.

  • Typical Uses

    Calcining tubes, pier caps with temperature fixtures and hardware.

  • MetalTek Grade

    MTEK 30-20

  • Poured At:

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

Similar Specifications

Cast UNS: N08604

Cast Grade: HL

Cast ASTM: A297, A608

Typical Chemical Composition (% by wt.)

Aluminum: n/a

Carbon: 0.20-0.60

Chromium: 28-32

Manganese: 2

Iron: n/a

Copper: n/a

Nickel: 18-22

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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