Achievement of various characteristics in addition to corrosion resistance Nippon Koshuha’s corrosion resisting materials that came into existence by original technology. Advanced corrosion resistance is requested from the materials that supports a present technology like electronics and the chemical industry, etc. It is Nippon Koshuha’s corrosion resisting materials to respond such a request from the front. It is materials that have corrosion resistance to various corrosive environments, the mechanical property and the physical property. The application to a wide usage such as parts of the food industry device, the chemical plant, and the electronic equipment is possible. Glasses material Bolt, screw, and nuts manufactured from special alloys

Corrosion resisting material Class Grade Equivalent alloy Principal chemical composition Characteristic Example of usage Pure nickel KTA200 Nickel 200 99Ni Good cold workability Good corrosion resistance Device for food industry, Electronic part, Use for caustic soda industry KTA201 Nickel 201 99Ni-Low C Good cold workability Good corrosion resistance in corrosive environment Use for caustic soda industry, Electronic parts, Plating board. Nickel -copper alloy KTA-M400 MONEL 400 67Ni-32Cu Excellent corrosion resistance to chloride, sulfuric acid, and alkali. 。 Equipment for seawater plant and ship, Use for glass. KTA-K500 MONELK 500 67Ni-30Cu-2.5Al-0.5Ti Higher strength than M400 Corrosion resistance equal with M400 Seawater plant equipment, Vane, Spring, Pump shaft, Bolts Iron-base alloy KTA800 INCOLOY 800 32Ni-21Cr-Fe Strong in stress corrosion cracking and the sulfur attack Heat exchanger, Parts for petrochemistry and heating furnace. KTA825 INCOLOY 825 42Ni-22Cr-3Mo-Fe Good corrosion resistance in a severe corrosive environment such as sulfuric acid and seawater Equipment for chemical industry and seawater dealings Nickel radical alloy KTA625 INCONEL 625 61Ni-22Cr-9Mo-3.5Nb-2Fe Excellent corrosion resistance in a severe corrosive environment such as sulfuric acid and seawater Equipment for chemical industry and seawater dealings KTA-HB HASTELLOY B 65Ni-28Mo-5Fe Excellent corrosion resistance in hydrochloric acid and reducing atmosphere Petrochemistry equipment, Acid tanks. KTA-HC276 HASTELLOY C 55Ni-15Cr-2.5Co-16Mo-4W-5Fe Good corrosion resistance in oxidizing and reducing atmosphere Chemical industry equipment KTA-HG HASTELLOY G 45Ni-22Cr-6.5Mo-2Cu-2Nb-20Fe Excellent corrosion resistance for a hot hydrochloric acid Equipment for chemical industry and pollution control equipment

The trademark quoted on this page and the proprietary rights are as shown in the following. Trade mark Name of the company Trade mark Name of the company DISCALOY Westinghouse Electric KOVAR Carpenter technology ELINVAR Imphy Alloys MONEL INCO Alloys HASTELLOY Haynes International NIMONIC INCO Alloys INCONEL INCO Alloys NISPANC INCO Alloys INCOLOY INCO Alloys WASPALOY United Technologies. INVAR Imphy Alloys

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