Alloy Grade UNS: CE8MN, 2A – Stronger than common Stainless Steel

  • Overview

    CE8MN, also known as 2A, is a high-performance duplex stainless steel that offers a compelling combination of exceptional strength and corrosion resistance. This alloy boasts nearly twice the strength of common stainless steels, making it suitable for demanding applications where structural integrity is critical. Furthermore, CE8MN exhibits outstanding corrosion resistance, particularly in harsh environments like seawater. Its duplex microstructure, a balanced mix of austenite and ferrite phases, contributes to its enhanced mechanical properties and its ability to resist various forms of corrosion. This combination of high strength and superior corrosion resistance makes CE8MN a valuable choice for applications where components must withstand both mechanical stress and aggressive corrosive attack.

  • Typical Uses

    Centrifuge and dewatering equipment, couplings, heat exchangers, offshore piping systems, paper rolls, pulp digesters, pump and valve components, pressure vessels.

  • MetalTek Grade

    ESCOLOY 45D®

  • Poured At:

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

* Produced under license of ESCO Corp.

Similar Specifications

Cast UNS: J93345

Wrought UNS: S32750

Wrought Grade: ESCOLOY 45D®

Cast Grade: CE8MN, 2A

Cast ASTM: A890, A995

Typical Chemical Composition (% by wt.)

Aluminum: n/a

Carbon: 0.08

Chromium: 22.5-25.5

Manganese: 1.5

Iron: n/a

Copper: n/a

Nickel: 8.0-11.0

Lead: n/a

Tin: n/a

Silicon: 1.5

Zinc: n/a

Other: Mo 3-4.5; N 0.10-0.30

Minimum Mechanical Properties

Tensile, ksi

0

Tensile, MPa

0

Calculated PREn (Minimum)

0

Yield, ksi

0

Yield, MPa

0

Elongation

0%

Heat Treatment: Solution Anneal

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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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Specialty Alloys comprise a broad group of materials that deliver properties for more demanding applications, use more exotic or expensive materials, or require special processes to manufacture. Where standard materials may not offer desired performance, specialty alloys (including those that are modified further) may be a sensible selection.