Hitachi Metals MMC Superalloy

Hitachi Metals MMC Superalloy's materials used in the Chemical industry process. The chemical industry is generally defined as "an industry that manufactures products from various materials for various purposes by using chemical technology". Chemical products are classified broadly as inorganic chemical products, gas products, organic chemical products, and petrochemical products, etc.

In the chemical industry process, amorphous solids (powder and grain) and fluids (liquids and gases) are put into devices (containers) under certain conditions (temperature, pressure and catalysts), which perform chemical alterations (chemical technology).

As the markets needs grow more sophisticated, the demand of development for new products is rising. On the other hand, it is now a prime task for manufacturers to improve productivity and to reduce investment and maintenance costs.

Consequently, demands for corrosion-resistant alloys are growing due to the following needs: improvement in product reliability; consistency in equipments for new processes; improvement in the simplification of repair and maintenance; reduction of equipment maintenance frequency span; reduction of total investment costs by taking into consideration of running and maintenance costs, etc...

Based on 40 and more years of accumulated experience in melting technology, processing technology, quality control system, and corrosion-resistance data for various environments, Hitachi Metals MMC Superalloy provides various types of corrosion-resistant alloy products as well as advice on deciding materials, and offers a wide variety of services.

The following list, for reference, is a comprehensive introduction of the various types of alloys. Please note that each data is an average value based on experimental data, and is not a guaranteed value.

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Material Property and Application Equivalent Alloy
MAT21 New alloy with improved local corrosion resistance by adding Ta to Ni-Cr-Mo type alloys.
MA22 Better corrosion resistance under oxidizing conditions than MA276. Hastelloy C-22
MA276 Excellent corrosion resistance under both oxidizing and reducing conditions. Hastelloy C-276
MA-C4 An improved MA276 alloy, with more stability in higher temperature.
MA-B Outclassing corrosion resistance in reducing conditions such as hydrochloric acid. Hastelloy B
MA-B2 An improved MA-B alloy, with higher corrosion resistance in welding heat-affected zone. Hastelloy B-2
MA-G Excellent corrosion resistance to sulfuric acid and phosphoric acid at high temperatures. Hastelloy G
MA-G3 Excellent corrosion resistance to sulfuric acid and phosphoric acid at high temperatures. Hastelloy G-3
MC-Alloy Excellent corrosion resistance to ammonium fluorinated acid, phosphoric acid, and sulfuric acid. Superior high-temperature corrosion resistance.
NC-Ni, LC-Ni Commercially Pure nickel for industrial use. Superior corrosion resistance against caustic soda and halogen gas. NC-Ni:Nickel
LC-Ni:Nickel 201
MA Plasthard S,B-2 Screw and cylinder material. It is used for devices which require corrosion resistance and abrasion
MA600, MA600T Excellent oxidation resistance. It is used as material for industrial furnaces, aircrafts , and nuclear power plants. Inconel 600
MA625 Excellent resistance to oxidation and various acid corrosion . It has high fatigue strength. Inconel 625
MA20NB3 Excellent corrosion resistance to sulfuric acid and oxidizing acids. Carpenter 20Cb3
MA825 Excellent corrosion resistance. It is used for oilfield gas treatment equipments Incoloy 825