The following is an indicative list of different INCOLOY® Alloy grades, their characteristics and typical applications:
INCOLOY® Alloy 020 exhibits excellent corrosion resistance in chemical environments that contain sulphuric acid, chlorides, phosphoric acid and nitric acid.
INCOLOY® Alloy 028 is resistant to both acids and salts. The copper content makes it resistant to sulfuric acid.
INCOLOY® Alloy 330 features good strength at high temperatures and good resistance to oxidation and reduction environments.
INCOLOY® Alloy 800 is capable of remaining stable and maintaining its austenitic structure even after long time exposures to high temperatures.
INCOLOY® Alloy 803 is designed for sulphur-rich environments.
INCOLOY® Alloy 825 is suitable for use in heat exchanger tubes by ASTM B163, and pressure vessels operating temperatures up to 525°C or up to 538°C. The alloy's nickel-iron-chromium chemical composition offers exceptional resistance to corrosion by sulphuric acid and phosphoric acid. Typical applications: sulphuric acid piping and vessels, phosphoric acid evaporators, pickling tanks, tank heaters and equipment, chemical process equipment, propeller shafts. truck tanks, hot vessels for food, water and seawater, marine exhaust systems and others.
INCOLOY® Alloy 908 "has high tensile strength, fatigue crack growth resistance, good weldability, metallurgical stability and ductility, high fracture and impact toughness and a low coefficient of thermal expansion.
INCOLOY® Alloy 907 has high strength and low thermal expansion coefficient at temperatures up to 800°F.
INCOLOY® Alloy 945X is designed for chlorine-rich environments. Molybdenum adds crevice corrosion and pitting to Incoloy 945.
INCOLOY® Alloy MA956 is made by a mechanical alloying rather than a bulk-melting process. It is difficult to weld and needs to be heated to 200C for forming processes.
Special Metals Incoloy® Grades & their Respective Number in the Unified Numbering System (UNS) (*) and DIN/EN:
INCOLOY® Alloy 800 UNS N08800
INCOLOY® Alloy 800H/800HT UNS N08810/(UNS N08811
INCOLOY® Alloy 803 UNS S35045
INCOLOY® Alloy 825 UNS N08825/W.Nr. 2.4858
INCOLOY® Alloy 890 UNS N08890
INCOLOY® Alloy 903 UNS N19903
INCOLOY® Alloy 907 UNS N19907
INCOLOY® Alloy 909 UNS N19909
INCOLOY® Alloy 925 UNS N09925
INCOLOY® Alloy 945 UNS N09945
INCOLOY® Alloy 945x UNS N09946
INCOLOY® 945x
INCOLOY® Alloy DS W. Nr. 1.4862
INCOLOY® Alloy 020 UNS N08020
INCOLOY® 27-7MO UNS S31277; EP 1,263,999 B1
(*) The UNS number (short for "Unified Numbering System for Metals and Alloys") is a systematic scheme in which each metal is designated by a letter followed by five numbers. It is a composition-based system of commercial materials and does not guarantee any performance specifications or exact composition with impurity limits.