Alloy Grade UNS: R30155 – Heat Resistant Alloy

  • Overview

    R30155 is a high-performance alloy specifically formulated to withstand extreme environments where both heat and corrosion resistance are paramount. This alloy exhibits exceptional strength at elevated temperatures, maintaining its structural integrity and resisting deformation even under prolonged exposure to heat. It offers good oxidation resistance, preventing degradation and ensuring long-term performance in high-temperature applications. Furthermore, R30155 demonstrates good resistance to corrosive attack by sulfuric and nitric acids, making it suitable for challenging chemical environments. This combination of high-temperature strength, oxidation resistance, and corrosion resistance makes R30155 a valuable choice for demanding applications in industries where components must withstand extreme conditions.

  • Typical Uses

    Turbine engine parts, exhaust manifolds, and furnace components.

  • MetalTek Grade

    MTEK N155

  • Poured At:

    Sandusky International Division, Wisconsin Centrifugal Division, Wisconsin Investcast Division

Similar Specifications

Cast UNS: R30155

Wrought UNS: R30155

Cast Grade:

Military/AMS: AMS 5376

* AMS specifying investment casting.

Typical Chemical Composition (% by wt.)

Aluminum: n/a

Carbon: 0.2

Chromium: 20.0-22.5

Manganese: 1-2

Iron: n/a

Copper: n/a

Nickel: 19-21

Lead: n/a

Tin: n/a

Silicon: 1

Zinc: n/a

Other: Co 18.5-21.0; Mo 2.5-3.5; W 2-3; Nb

Minimum Mechanical Properties

Tensile, ksi

0

Tensile, MPa

0

Calculated PREn (Minimum)

0

Yield, ksi

0

Yield, MPa

0

Elongation

0%

Heat Treatment: Normally Used As Cast

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.

Explore Other Alloys

Gears

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%.
Petrochemical Fittings

Specialty Alloys

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.