Alloy Grade UNS: ALLOY 86 – Duplex Stainless Steel

  • Overview

    Alloy 86 is a high-performance duplex stainless steel that combines approximately 50% austenite and 50% ferrite, offering exceptional mechanical properties and corrosion resistance. Its composition includes high chromium for enhanced corrosion resistance, nickel and molybdenum for improved pitting resistance, and nitrogen to strengthen the austenite phase. This results in excellent resistance to pitting and stress corrosion cracking, along with high yield strength and good ductility. Widely used in industries such as pulp and paper, chemical processing, oil and gas, and marine applications, Alloy 86 is ideal for demanding environments. Although its initial cost may be higher than standard stainless steels, it provides long-term economic benefits through reduced material thickness, extended service life, and lower maintenance costs. Overall, Alloy 86 is a robust solution for applications requiring both strength and corrosion resistance.

  • Typical Uses

    Pulp and paper suction rolls.

  • MetalTek Grade

    ALLOY 86

Similar Specifications

Typical Chemical Composition (% by wt.)

Aluminum: n/a

Carbon: 0.02

Chromium: 26

Manganese: 0.8

Iron: BAL

Copper: 2.8

Nickel: 6.8

Lead: n/a

Tin: n/a

Silicon: 0.7

Zinc: n/a

Minimum Mechanical Properties

Tensile, ksi

0

Tensile, MPa

0

Yield, ksi

0

Yield, MPa

0

Elongation

0%

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Non-Ferrous

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 Steel

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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