Exotic Materials

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Alloy 20 - A nickel-iron-chromium alloy with additions of molybdenum and copper. Alloy 20 has great resistance to pitting, general corrosion, and crevice corrosion in chemicals containing sulfuric, nitric, and phosphoric acids as well as chlorides. It also contains niobium for stabilization and is used for piping, tanks, pumps, valves, heat exchangers, and other process equipment.

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Duplex 2205 - A chromium molybdenum blend which combines properties of both ferritic and austenitic steels. Having both a high resistance to corrosion fatigue, corrosion cracking, and erosion, Duplex 2205 is used in oil and gas, desalination plants, and industries handling chlorides.

 

Super Duplex 2507 - A nickel-molybdenum-chromium alloy designed for applications demanding outstanding strength and corrosion resistance. The nitrogen, chromium, and high molybdenum content results in excellent resistance to crevice corrosion and chloride pitting. Super Duplex 2507 is often found in offshore platforms, heat exchangers, chemical processing, seawater equipment, and in the petrochemical industry.

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317L - A molybdenum-bearing steel that offers a higher stress-to-rupture, creep, and tensile strength at elevated

temperatures. 317L is a low carbon version of 317 and is non-magnetic in the annealed condition. 317L can often be found in pulp and paper plants, food processing plants, chemical and petrochemical processing equipment, and textile equipment.

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310H - Alloy 310H (UNS S31009) has a carbon content restricted to exclude the lower end of the 310 range. This makes 310H the grade of choice for high temperature applications. This steel has good resistance to oxidation at temperatures of up to 1040°C (1904°F) in intermittent service and 1150°C (2102°F) in continuous service. It is widely used in environments where sulfur dioxide gas is present at high temperatures; however it is recommended that this steel should not be continuously used at 425-860°C (797-1580°F) range due to carbide precipitation.

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321/321H - A titanium bearing steel not sensitive to intergranular corrosion after heating within the range of carbide precipitation. This stainless steel grade is often used in refineries as well as high temperature chemical processing, heat exchanger tubes and high temperature steam service.

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347/347H - An austenitic chromium steel containing columbium is often used in refineries, high temperature chemical processing, and high temperature steam service. This columbium bearing steel is not sensitive to intergranular corrosion after heating within the range of carbide precipitation but elevated properties may be achieved through cold reduction.

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Alloy C276 (Hastelloy) - A nickel-molybdenum-chromium alloy with an addition of tungsten used in chemical processing, pollution control, waste treatment, and pulp and paper production. The carbon content in alloy C-276 minimizes the carbide precipitation during welding to keep corrosion resistance in as-welded structures. The high molybdenum content makes C-276 particularly resistant to pitting and crevice corrosion.

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Incolloy 800H/HT – A nickel-iron-chromium alloy with the same basic composition as INCOLOY 800 but with much higher creep-rupture strength. The close control of the aluminum, titanium, and carbon contents in conjunction with a high-temperature anneal result in the higher strength. Incolloy 800 H/HT is used in industrial furnaces, chemical and petrochemical processing, power plants for super-heater and re heater tubing, and heat-treating equipment.

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Incolloy 600 - A nickel-chromium alloy used in chemical and food processing, nuclear engineering, sparking electrodes, and furnace components. Inconel 600 is created with a resistance to chloride-ion stress-corrosion cracking, caustic corrosion, corrosion by high-purity water, and good oxidation resistance at high temperatures.

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Inconel 625 - Used in aerospace and marine engineering, pollution-control equipment, chemical processing, and nuclear reactors, Inconel 625 is especially resistant to pitting and crevice corrosion. A nickel-chromium-molybdenum alloy with an addition of niobium that works with the molybdenum to stiffen the alloys matrix providing high strength without a strengthening heat treatment.

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Monel 400 - Used for chemical and hydrocarbon processing equipment, marine engineering, valves, pump, shafts, and fittings, Monel 400 is a nickel-copper alloy with excellent corrosion resistance and high strength in a range of media. Some media include: hydrofluoric acid, sulfuric acid, alkalies, and sea water.

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Nickel 200/201 - Commercially pure (99.6%) wrought nickel with good mechanical properties and resistance to a range of corrosive media. Nickel 200/201 has a lower carbon content to prevent embrittlement by intergranular carbon at temperatures over 600°F (315°C), making it particularly suitable for cold-formed items.

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Titanium GR2 - Titanium’s C.P. grades corrosion resistance comes from a strongly adherent, stable, protective oxide film, which forms in the presence of oxygen. This film makes the commercially pure titanium grades resistant to most oxidizing, neutral and inhibited reducing as well as mildly reducing environments. Strong reducing media may cause heavy corrosion.

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Chrome Moly Pipe (A335) - ASTM A335 Pipe (ASME S/A335, Chrome-Moly) is a seamless ferritic Alloy-Steel Pipe for high temperature service. Pipe ordered to this specification shall be suitable for bending, flanging (van-stoning), and similar forming operations, and for fusion welding.  Sometimes referred to as “P Grade”, chrome moly pipe is popular in P-Grades P5, P9, P11, P22, and P91.  The most common use of grades P11, P22, and P91 is in the power industry and petro-chemical plants, Grades P5 and P9 are commonly used in refineries. A335 is often called chrome moly pipe because of the chemical makeup of Molybdenum (Mo) and Chromium (Cr). Molybdenum increases the strength of steel as well as the elastic limit, resistance to wear, impact qualities, and hardenability.  Moly increases the resistance to softening, restrains grain growth and makes chromium steel less susceptible to embrittlement.  Moly is the most effective single additive that increases high temperature creep strength.  It also enhances the corrosion resistance of steel, and inhibits pitting.  Chromium (or chrome) is the essential constituent of stainless steel.  Any steel with 12% or more Chrome is considered stainless.  Chrome is virtually irreplaceable in resisting oxidation at elevated temperatures. Chrome raises the tensile, yield, and hardness at room temperatures.  The composition chrome moly alloy steel pipe make it ideal for use in power plants, refineries, petro chemical plants, and oil field services where fluids and gases are transported at extremely high temperatures and pressures.