Alloy Grade UNS: MTEK 35-45MA – Micro Alloy

  • Overview

    MTEK 35-45MA is a specialized micro-alloyed high-temperature material specifically formulated to excel in extremely harsh environments. Primarily composed of nickel and chromium, this alloy incorporates carefully controlled additions of micro-alloying elements to enhance its performance at elevated temperatures. MTEK 35-45MA exhibits outstanding resistance to carburization and coking, making it suitable for applications where components are exposed to carbon-rich atmospheres and high temperatures. Its high melting point of 2380 degrees Fahrenheit further underscores its ability to withstand extreme heat. This combination of properties makes MTEK 35-45MA a valuable choice for demanding applications in industries where resistance to carburization, coking, and high temperatures is critical.

  • Typical Uses

    Petrochemical furnaces and furnace coil assemblies.

  • MetalTek Designation

    MTEK 35-45MA

  • Poured At:

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

Similar Specifications

Typical Chemical Composition (% by wt.)

Aluminum: n/a

Carbon: 0.35-0.47

Chromium: 33-36

Manganese: 2

Iron: BAL

Copper: n/a

Nickel: 43-47

Lead: n/a

Tin: n/a

Silicon: 2

Zinc: n/a

Other: Mo 0.50 MAX; Nb 1.00 MAX

Minimum Mechanical Properties

Tensile, ksi

0

Tensile, MPa

0

Calculated PREn (Minimum)

0

Yield, ksi

0

Yield, MPa

0

Elongation

0%

Heat Treatment: Not Heat Treated

Frequently Asked Questions

Heat resistant stainless steel refers to alloys designed to maintain mechanical properties and resist oxidation at elevated temperatures.

Applications include furnace parts, heat exchangers, and components in petrochemical plants.

Heat resistant stainless steels can withstand temperatures up to 1,150°C (2,100°F), depending on the grade and exposure time.

High chromium and nickel contents stabilize the austenitic structure and form a protective oxide layer, resisting scale and oxidation.

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