Alloy Grade UNS: N-12MV – Nickel-Molybdenum Alloy

  • Overview

    N-12MV, also known as N30012, is a nickel-molybdenum alloy specifically engineered for exceptional resistance to hydrochloric acid. This alloy excels in handling hydrochloric acid across all concentrations and temperatures, even up to its boiling point. It's remarkable resistance to this highly corrosive acid makes it a valuable choice for demanding chemical processing applications. Furthermore, N-12MV exhibits excellent strength and ductility at both room and elevated temperatures, making it suitable for high-temperature environments up to 1400 degrees Fahrenheit (760 degrees Celsius) under oxidizing conditions, and even higher in reducing atmospheres. This alloy is also readily machinable and weldable, providing flexibility in fabrication and design.

  • Typical Uses

    Gas turbine engine components and chemical processing equipment.

  • MetalTek Designation

    MTEK N-12MV

  • Poured At:

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

Similar Specifications

Cast UNS: N30012

Wrought UNS: N10665

Cast Grade: N-12MV

Cast ASTM: A494

Military/AMS: AMS 5396

* AMS specifying investment casting.

Typical Chemical Composition (% by wt.)

Aluminum: n/a

Carbon: 0.12

Chromium: 1

Manganese: 1

Iron: 4.0-6.0

Copper: n/a

Nickel: BAL

Lead: n/a

Tin: n/a

Silicon: 1

Zinc: n/a

Other: Mo 26-30; V 0.20-0.60

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

Frequently Asked Questions

Severe corrosion and heat resistant steel is engineered to withstand extreme environments, including high temperatures, chemical exposure, and acidic conditions.

Applications include chemical reactors, flue gas scrubbers, incinerators, and heat treatment fixtures exposed to corrosive and thermal stress.

Alloys such as Inconel, Hastelloy, Alloy 20, and super austenitic or duplex stainless steels are ideal for high-heat and corrosion-prone conditions.

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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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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.