Incoloy MA956 Introduction

Dispersion
Strengthened Alloy

Iron

Chromium

Aluminum

Corrosion
Resistance

60

Mechanical
Behavior

100

Purity

98

Overview

As a leading supplier & manufacturer in China, AEETHER supply cost-effective Incoloy MA956 Products.

INCOLOY® alloy MA956 (UNS S67956), first developed as an aerospace superalloy and now used in a range of industrial applications, combines excellent strength and fabricability with outstanding resistance to prolonged exposure up to 1300°C (2400°F). Its exceptional properties result from the mechanical alloying process by which it is made; a process which allows a fine distribution of yttrium oxide particles to be incorporated into a highly corrosion-resistant Fe-Cr-Al alloy.

The alloy has excellent oxidation resistance up to 1300°C (2400°F) and significant creep strength up to its unusually high melting point of 1482°C (2700°F). Thicker sections may be used up to 1370°C (2500°F). Typical industrial applications include hearth rollers, radiant tubes, furnace muffles, fluidized bed retorts, heat treatment baskets, mesh belts, heat shields, burner nozzles, sensor tubes for thermowells and combustion chamber components for diesel engines.

A full range of both hot and cold-worked mill products is available. The forming and machining characteristics are similar to those of conventional highchromium ferritic steels and Fe-Cr-Al alloys.

Corrosion Resistance

The high aluminum content of INCOLOY alloy MA956 allows the information of a thin, highly adherent and protective surface layer of alumina. This process occurs in a wide range of atmospheres, even when levels of oxygen are low. The layer is very effective in reducing the rates of further oxidation. Should the protective layer be mechanically damaged, the high aluminum content of the alloy allows the formation of fresh alumina which heals the affected area. INCOLOY alloy MA956 may be used under oxidizing conditions up to 1300°C (2370°F), much higher than conventional nickel-chromium alloys. For optimum environmental resistance of machined or cut surfaces, particularly in reducing atmospheres, it is recommended that all traces of lubricants and other foreign matter are removed prior to pre-oxidizing for service in air for 2 hours at 1100°C (2012°F).

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