Alloy Grade UNS: HL –  Corrosion Resistance to Hot Gases

  • Overview

    Provides strength levels of HK with improved corrosion resistance to hot gases. Service limit 1025 degrees Celsius (1875 degrees Fahrenheit).

  • Typical Uses

    Calcining tubes, pier caps with temperature fixtures and hardware.

  • MetalTek Grade

    MTEK 30-20

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

Yield, ksi

0

Yield, MPa

0

Elongation

0%

Heat Treatment: Not Heat Treated

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Non-ferrous alloys are, literally, materials that are not iron-based. While others may provide non-ferrous materials of other materials, the MetalTek family of non-ferrous alloys are copper-based. In general, these materials deliver high strength, and excellent wear and corrosion resistance. They are often found in marine applications and also bushing, bearing, and gear environments.
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Stainless steels owe their ability to resist corrosion primarily to the presence of a passive film on their surface. Chromium is chiefly responsible for formation of the passive film. Iron ceases to rust at approximately 12% chromium content and resistance to oxidizing corrosives increases rapidly with chromium content up to approximately 20%.
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