Wire Mesh may woven from a number of alloys which impart heat-resistant properties to the finished product. Here are a few examples which Cleveland Wire Cloth regularly weaves:
HASTELLOY® alloy X (HX) [(UNS N06002) Ni rem, Cr 20.5-23%, Fe 17-20%, Mo 8-10%]
Provides optimium balance of strength, oxidation resistance, welding characteristics and fabricability, at temperatures up to 2200° F. Particularly suitable in reducing and neutral atmospheres, and where ductility is required after prolonged service at elevated temperatures. Resists stress-corrosion cracking in petrochemical applications. Used in gas turbine engine combustors, heat treating equipment, flame holders, furnace baffles, and aircraft and marine applications.
HAYNES® alloy 25 (L605) [(UNS R30605) Co rem(50%), Cr 19-21%, W 14-16%, Ni 9-11%, Fe 3%max, Mn 2%max]
High-strength; resists oxidation and carburization up to 1900° F. Resists galling, acids and body fluids. At certain concentrations, will resist hydrochloric and nitric acid. Resistant to wet chlorine environments at room temperature. Widely used in gas turbine engine components, bearings, springs, marine environments and heart valves.
HAYNES® Alloy 230 [(UNS N06230) Cr 20-24%, W 13-15%, Co max. 5%, Mo 1-3%, Mn 0.3-1%]
Alloy 230 exhibits excellent oxidation resistance, high temperature strength, good fabricability, and long term stability up to 2100ºF. 230 has excellent forming and welding characteristics. Often used for a wide variety of components in aerospace, chemical processing, and power industry applications.
INCOLOY® alloy 800 [(UNS N08800) Ni 30-35%, Cr 19-23%, Fe 39.5% min]
This nickel – iron – chromium alloy has good strength and excellent resistance to oxidation and carburization in high temperature atmospheres. It also resists corrosion in many aqueous environments. The low carbon content helps prevent sensitization and consequent intergranular corrosion of weld heat-affected zones. Used for flue-gas scrubbers and for handling phosphoric and sulfuric acids.
INCOLOY® alloy 800H & 800HT [(UNS N08810 & UNS N08811)]
The Incoloy 800H and 800HT nickel – iron – chromium alloys are the same basic alloys as Incoloy 800 but with significantly higher creep-rupture strength. This is achieved by close control of carbon, aluminum and titanium contents in conjunction with a high-temperature anneal. These alloys are used in chemical and petrochemical processing, in power plants, industrial furnaces and heat treating equipment.
INCOLOY® alloy 825 [(UNS N08825) Ni 38-46%, Cr 19.5-23.5%, Fe 22% min, Mo 2.5-3.5%, Cu 1.5-3%]
This is a nickel – iron – chromium alloy with additions of molybdenum and copper. It has excellent resistance to both reducing and oxidizing acids, to stress cracking, and to localized attack such as pitting and crevice corrosion. Incoloy 825 is especially resistant to sulfuric and phosphoric acids. Often used in chemical processing, pollution-control equipment, oil and gas well piping, nuclear processing, acid production and pickling equipment.
INCONEL® alloy 600 [(UNS N06600) Ni 72% min, Cr 14.0-17.0%, Fe 6.0-10.0%]
Ideal for use in high-temperature environments (up to 2150° F) that also pose the threat of oxidizing, reducing and corrosion. Offers superior resistance due to its high nickel and chromium content. Because of these properties, it is often specified for nuclear steam generator equipment, heat treating equipment and furnace muffles. Also used for electronic components and chemical and food processing.
INCONEL® alloy 601 [(UNS N06601) Ni 58.0-63.0%, Cr 21.0-25.0%, Al 1.0-1.7%, Fe rem]
With the addition of aluminum, Inconel 601 has outstanding resistance to oxidation and other forms of high temperature corrosion. It also has high mechanical properties at elevated temperatures. Used for industrial furnaces, heat-treating equipment such as baskets, muffles and retorts, petrochemical and other process equipment, and gas turbine components.
INCONEL® alloy 617 [(UNS N06617) Ni 44.5% min, Cr 20.0-24.0%, Co 10-15%, Mo 8-10%, Fe 3% max]
Inconel 617 is a nickel – chromium -cobalt – molybdenum alloy with exceptional combination of metallurgical stability, strength and oxidation resistance at high temperatures. It exhibits corrosion resistance to a wide variety of aqueous solutions. Often used in applications for aircrafts, ducting, gas turbines, chemical processing, combustion cans, and industrial furnace components.
INCONEL® alloy 625 [(UNS N06625) Ni 61%, Cr 21.5%, Mo 9%, Nb+Ta 3.6%]
Retains its strength and toughness across a wide range of operating temperatures, from cryogenic through 1800° F. This nickel – chromium – molybdenum alloy provides outstanding fatigue strength, good oxidation and corrosion resistance. Used in nuclear reactors, ash pit seals, marine equipment, fuel nozzles, afterburners, and chemical and pollution control equipment.
INCONEL® alloy 718 [(UNS N07718) Ni 52.5%, Cr 19%, Fe 18.5%, Mo 3.0%, Nb+Ta 3.6%]
For use across temperatures ranging from -423° F to 1300° F, with excellent oxidation resistance up to 1800° F. Found in jet engines, fuel elements, pump parts, nuclear fuel elements and hot extrusion applications.
INCONEL® alloy X-750 [(UNS N07750) Ni+Co 70% min, Cr 14-17%, Fe 5-9%, Ti 2.25-2.75%]
Similar to Inconel 600 but made precipitation hardenable by additions of aluminum and titanium. X750 has good resistance to corrosion and oxidation along with high tensile and creep rupture properties at about 1300ºF. It has excellent relaxation resistance which is useful for high-temperature applications. Used in gas turbines, rocket engines, nuclear reactors, pressure vessels, tooling, and aircraft structures.
Kanthal-D® [(UNS ) Cr 22%, Al 4.8 %, Fe bal.]
Kanthal-D is heat resistant up to 2370ºF. The alloy is suitable for appliances in most applications due to its high resistivity, low density, and superior heat resistance. Kanthal has excellent corrosion resistance in the hot state, and specific resistance to sulfur and carburizing environments.
Nichrome V [(UNS N06003) Ni rem(80%), Cr 19-21%, Fe 1% max, Mn 2.5% max]
Also known as Nichrome 80-20, this nickel-chromium alloy it is well-suited for resistors at high operating temperatures. It has found wide application for resistances due to the combination of high electrical resistance and a low temperature coefficient of resistance. Often seen in electric furnaces, radiant heaters, and other electrical industry applications.
Nichrome 60-16 [(UNS N06004) Ni 57% min, Cr 14-18%, Fe rem, Mn 1% max]
60-16 is well-suited to high operating temperatures up to 1950°F. This nichrome alloy exhibits excellent corrosion resistance in oxidizing and reducing atmospheres. Often used in electrical heating, industrial resistance units, acid dipping baskets, filter cloth, and other applications.
Nichrome 35-20 [(UNS N060??) Ni 34-37% min, Cr 18-21%, Fe rem, Mn 1% max]
35-20 is well-suited to high operating temperatures, exhibiting good strength up to approximately 1900°F. It is superior for use in sulfur, lead, or zinc contaminated atmospheres. Used more often from mechanical purposes than resistance purposes.
Stainless Steel
Several Stainless Steel alloys are also useful in high temperature applications:
Hastelloy B, Hastelloy C, Hastelloy X and Haynes 25 are registered trademark names of Haynes International, Inc.
Inconel 600, Inconel 625, Inconel 718 and Monel 400 are registered trademark names of Inco Companies.