From advanced technology to daily necessaries The heat resisting material of Nippon Koshuha Steel is in the base of the society. The heat resisting material is a base of the high technology that supports the next generation like the aviation space industry and the atomic industry, etc. Nippon Koshuha Steel is delivering the high quality heat-resistant materials that stand high temperature and high pressure, and that have corrosion resistant, toughness, and workability. Heat resisting materials processed to forgings, bars, and wire rod can be widely used for parts such as automobiles, ships and vessels, chemical equipments, and precision machineries. Turbine shaft Turbine disk

Heat resisting material Class Grade Equivalent alloy Principal Chemical Composition Example of usage Iron-base Alloy KTA286 A 286 26Ni-15Cr-2Ti-1.3Mo-Fe Gas turbine (desk and rotor), Corrosion and heat resisting bolts KTA800 INCOLOY 800 32Ni-21Cr-Fe Heat exchanger, Parts for various heating unit KTA801 INCOLOY 801 32Ni-21Cr-1.1Ti-0.5Cu-Fe Heat exchanger, Steam generator, Jet engine parts. KTA802 INCOLOY 802 0.3C-32Ni-21Cr-0.75Cu-Fe Heat-treatment furnace, Die for hot working. KTA804 INCOLOY 804 30Ni-41Cr-0.6Ti-0.3Al-Fe Parts for heating furnace, Instrument for carburization KTA825 INCOLOY 825 42Ni-22Cr-3Mo-0.9Ti-0.1Al-Fe Chemical equipment, Fastener, Instruments foe pickling。 KTA901 INCOLOY 901 43Ni-14Cr-6Mo-2.5Ti-0.3Al-Fe Gas turbine parts KTA155 LCN 155 20Ni-21Cr-3Mo-20Co-1Nb-3W-Fe Rocket engine parts, Aircraft components. Nickel-base alloy KTA600 INCONEL 600 76Ni-16Cr-8Fe Heat exchanger, Chemical equipment, Bolts. KTA601 INCONEL 601 61Ni-23Cr-1.4Al-14Fe Parts for heating furnace KTA606 INCONEL 606 70Ni-20Cr-3.2Mn-2.5Nb Welding rod, Parts for heating furnace KTA625 INCONEL 625 61Ni-22Cr-9Mo-3.5Nb-2Fe Chemical equipment, Parts for resisting seawater KTA718 INCONEL 718 52Ni-19Cr-5Nb-3Mo-1Ti-19Fe Jet engine parts, Nuclear power plant KTAX-750 INCONELX 750 73Ni-16Cr-2.5Ti-1Nb-7Fe Heat resisting spring, Gas turbine parts. KTAN-75 NIMONIC 75 75Ni-20Cr-4.5Fe Jet engine parts, Gas turbine parts. KTAN-80A NIMONIC 80A 70Ni-20Cr-2.3Ti-1.2Al-4.5Fe Exhaust valve, Gas turbine parts. KTAN-90 NIMONIC 90 58Ni-20Cr-16Co-2.3Ti-1.4Al Jet engine parts, Exhaust valves. KTA-HC HASTELLOYC 55Ni-15Cr-2.5Co-16Mo-4W-5Fe Chemical equipment, Jet engine parts KTA-HX HASTELLOYX 46Ni-22Cr-1.5Co-9Mo-18Fe Parts for heating furnace, Jet engine parts Cobalt-base alloy KTA816 S 816 43Co-20Ni-20Cr-4Mo-4W-4Nb Gas turbine parts, Bolts, Shafts, Parts for heating furnaces KTA-KU50 UMCO 50 50Co-30Cr-20Fe Parts for heating furnaces, Device for heat-treatment. Class Grade Equivalent alloy Principal Chemical Composition Example of usage

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