Al-Arham Engineering Co.

HASTELLOY are widely used by the chemical processing industries. The need for reliable performance leads to their acceptance and growth in the areas of energy, health and environmental, oil and gas, pharmaceutical and flue gas desulfurization industries. The attributes of HASTELLOY include high resistance to uniform attack, outstanding localized corrosion resistance, excellent stress corrosion cracking resistance, and ease of welding and fabrication.

Hastelloy possesses outstanding resistance to non-oxidizing acids, such as hydrochloric acid and sulfuric acid. The advantages of Hastelloy B-3 alloy over previous B-family alloys are enhanced thermal stability and improved fabrication characteristics.

The most versatile of the HASTELLOY are the “C-type” alloys. Alloy C-276 a Versatile, corrosion resistant alloy. Very good resistance to reducing, and mildly oxidizing corrosives. Excellent stress corrosion cracking resistance with very good resistance to localized attack. C-2000 alloy combines outstanding resistance to oxidizing media with superior resistance to non-oxidizing environments and represents a true performance breakthrough for chemical process equipment applications.  C-22 alloy is particularly resistant to pitting and crevice corrosion; it has been used extensively to protect against the most corrosive FGD systems and the most sophisticated pharmaceutical reaction vessels.

Information on the physical and mechanical properties of these products, the most comprehensive range of alloy compositions and product forms available from a single Distributor, can be accessed below.

Products includes super alloys in Pipe, Tube, Fitting, Flange, Sheet, Strip, Plate, Round Bar, Flat Bar, Fastener, Forging Stock, Hexagon and Wire.

Alloy L605

Alloy L605 UNS R30605, Excellent strength, good oxidation resistance to 1800°F (980°C), very good sulfidation resistance, and relatively good resistance to wear and galling. Used in gas turbine parts, bearings, and various industrial applications.

Alloy L605 alloy is a cobalt nickel-chromium-tungsten alloy that combines excellent high-temperature strength with good resistance to oxidizing environments up to 1800° F (980° C) for prolonged exposures, and excellent resistance to sulfidation. It can be fabricated and formed by conventional techniques, and has been used for cast components. Other attractive features include excellent resistance to metal galling.

Available Product Forms:
Material is produced in the form of plate, sheet, strip, billet, bar, wire, coated electrodes, pipe and tubing.

Hastelloy B-2 Alloy

Alloy B2 (UNS N10665 / W.Nr. 2.4617) is a solid solution strengthened, nickel-molybdenum alloy, typically used in extreme reducing conditions. B2 has significantly lower carbon, silicon and iron compared to its’ predecessor, Alloy B (UNS N10001), making the alloy less susceptible to decreased corrosion resistance in the weld zone, in the as-welded condition. Controlling other alloying elements such as iron and chromium
solved other issues concerning fabricability.

Stringent chemistry control along with years of development has resulted in the alloy used today, both in Alloy B2 and Alloy B-3 Today, Alloy B2 with restricted chemistry can be used in the welded condition and is less susceptible to SCC under many conditions. As always, care must taken in selecting the right alloy for the desired application.

Alloy B2 should not be used at temperatures between 1000°F and 1600°F as the alloy forms secondary phases that could decrease the ductility of the material.

Available Product Forms:
Plate, Sheet, Bar, Pipe

Hastelloy B3 Alloy

HASTELLOY B-3 alloy (UNS N10675) is an excellent resistance alloy to hydrochloric acid at all concentrations and temperatures. It also withstands sulfuric, acetic, formic and phosphoric acids, and other nonoxidizing media. B-3 alloy has a special chemistry designed to achieve a level of thermal stability greatly superior to that of its predecessors, e.g. HASTELLOY B-2 alloy. B-3 alloy has excellent resistance to pitting corrosion, to stress-corrosion cracking and to knife-line and heat-affected zone attack.

Available Product Forms:
HASTELLOY B-3 alloy is available in the form of plate, sheet, strip, billet, bar, wire, pipe and tubing.

Hastelloy C-2000 Alloy

Hastelloy C-2000  UNS N06200, Mostversatile, corrosion resistant alloy with excellent resistance touniform corrosion in oxidizing or reducing environments. Excellentresistance to stress corrosion cracking and superior resistance tolocalized corrosion as compared to C-276 alloy.

The nickel-chromium-molybdenum(Ni-Cr-Mo) C-type alloys have a long history of use in the ChemicalProcess Industries and are known for their versatility. Not only do theyresist all acids (especially hydrochloric, sulfuric, and hydrofluoric)over large temperature ranges, but they also resist the insidious typesof attack induced by chlorides and other halide solutions, specificallypitting, crevice attack, and stress corrosion cracking.

Specifications

Rod, Bar, Wire and Forging Stock: ASTM B 462 (Rod, Bar and Forging Stock), ASTM B 564 & ASME SB 564 (Forgings), ASTM B 574 & ASME SB 574 (Rod, Bar and Wire).

Plate, Sheet and Strip: – ASTM B 575; ASME SB 575.

Pipe and Tube: – ASTM B 619; ASME SB 619 (Welded Pipe); ASTM B 622; ASME SB 622 (Seamless Pipe);  ASTM B626; ASME SB626 (Welded Tube).

Other Product Forms: – ASTM B 366 & ASME SB-366 (Fittings).

 

Hastelloy C-22 Alloy

Hastelloy C-22 Alloy 22 (UNS N06022; W. Nr. 2.4602; NiCr21Mo14W) is a fully austenitic advanced corrosion-resistant alloy that offers resistance to both aqueous corrosion and attack at elevated temperatures. This alloy provides exceptional resistance to general corrosion, pitting, crevice corrosion, intergranular attack, and stress corrosion cracking. Alloy 22 has found numerous applications in the chemical/petrochemical processing, pollution control (flue gas desulfurization), power, marine, pulp and paper processing, and waste disposal industries.

Alloy 22 is nickel-base and typically contains 22% chromium, 14% molybdenum, and 3% tungsten. Iron is normally limited to less than 3%. The alloy’s high content of chromium gives it good resistance to wet corrosion by oxidizing media (e.g., nitric acid and ferric and cupric salts). Its contents of molybdenum and tungsten give the alloy resistance to wet reducing media (e.g., sulfuric and hydrochloric acids). Alloy 22 exhibits excellent resistance to corrosive attack by seawater under stagnant and flowing conditions.

At elevated temperatures, the high chromium level of Hastelloy C-22 Alloy helps it resist oxidation, carburization, and sulfidation. Since it is nickel-base, alloy 22 resists high temperature attack by halides (e.g., chlorides and fluorides). With these attributes, the alloy is widely used to protect steel tubes and other components in coal-fired and waste-to-energy boilers.

Available Product Forms: 
Pipe, tube, fitting, flange, sheet, strip, plate, round bar, flat bar, fastener, forging stock, hexagon and wire

Hastelloy C-276 Alloy

Hastelloy C276, Alloy C-276, Nickel C-276; Nickelvac HC-276, Inconel C-276, Nicrofer 5716

Alloy  (UNS N10276, W.Nr. 2.4819) is known for its corrosion resistance in a wide range of aggressive media. The high molybdenum content imparts resistance to localized corrosion such as pitting. The low carbon minimizes carbide precipitation during welding to maintain resistance to intergranular attack in heat-affected zones of welded joints. It is used in chemical processing, pollution control, pulp and paper production, industrial and municipal waste treatment and the recovery of “sour” natural gas. Applications in air pollution control include stack liners, ducts, dampers, scrubbers, stack-gas re-heaters, fans and fan housings. In chemical processing, the alloy is used for components including heat exchangers, reaction vessels, evaporators and transfer piping.

Hastelloy C-276 Alloy has excellent resistance to a wide variety of chemical process environments, including strong oxidizers such as ferric and cupric chlorides, hot contaminated media (organic and inorganic), chlorine, formic and acetic acids, acetic anhydride, and seawater and brine solutions. It is used in flue gas desulfurization systems because of its excellent resistance to sulfur compounds and chloride ions encounted in most scrubbers. C-276 alloy has excellent resistance to pitting and to stress-corrosion cracking. It is also one of the few materials that withstands the corrosive effects of wet chlorine gas, hypochlorite, and chlorine dioxide.

Available Product Forms:

Pipe, tube, fitting, flange, sheet, strip, plate, round bar, flat bar, fastener, forging stock, hexagon and wire

Hastelloy X

Hastelloy X, Nickel X, Alloy X, Nickelvac HX, Microfer 4722, Altemp HX, Inconel HX

Hastelloy X Alloy (UNS N06002; W.Nr. 2.4665) is a high-temperature, matrix-stiffened, nickel-chromium- iron-molybdenum alloy with outstanding oxidation resistance, and exceptional strength at up to 2200°F (1200°C).

It is used for components such as combustion chambers, afterburners and tail pipes in aircraft and land-based gas turbine engines; for fans, roller hearths and support members in industrial furnaces, and in nuclear engineering.
Hastelloy X Alloy is readily fabricated and welded.

Available Product Forms:
The alloy is available as rod, bar, nuts, bolts, Flanges, plate, sheet, strip, wire, pipe and tube.

 

Haynes 188 Alloy

Haynes 188, Alloy 188, Udimet 188, Conicro 4023

Haynes 188 Alloy is a Cobalt-Nickel-Chromium-Tungsten Alloy that combines excellent high temperature strength with very good resistance to oxidizing environments up to 2000°F (1095°C).

HAYNES 188 Alloy is a solidsolution-strengthened material which combines excellent high temperature strength with good tabricability at room temperature. It is particularly effective for very long-term applications at temperatures of 1200°F (650°C) or more. It is stronger than nickel-base solid-solutionstrengthened alloys, and far stronger than simple nickel-chromium or iron-nickel-chromium heat-resistant alloys.

This can allow for significant section thickness reduction when it is substituted for these
materials.

Available Product Forms:
Plate, Sheet, and Bar

Haynes 230 Alloy

Haynes 230 UNS N06230, Best balance of strength, thermal stability, oxidation resistance, thermal cycling resistance and fabricability of any major high-temperature alloy. Used in gas turbine combustors and other key stationary components. Also used for heat treating and industrial heating applications, and in the chemical/petrochemical process industry and in fossil energy plants.

Haynes 230 alloy is a nickelchromium-tungsten-molybdenum alloy that combines excellent high-temperature strength, outstanding resistance to oxidizing environments up to 2100°F (1149°C) for prolonged exposures, premier resistance to nitriding environments, and excellent long-term thermal stability. It is readily fabricated and formed, and is castable. Other attractive features include lower thermal expansion characteristics than most high-temperature alloys, and a pronounced resistance to grain coarsening with prolonged exposure to high temperatures.

Available Product Forms:
Material is produced in the form of plate, sheet, strip, billet, bar, wire.

Haynes 25 Alloy

Haynes 25; Alloy L605;

Haynes 25 UNS R30605, Excellent strength, good oxidation resistance to 1800°F (980°C), very good sulfidation resistance, and relatively good resistance to wear and galling. Used in gas turbine parts, bearings, and various industrial applications.

Haynes 25 alloy is a cobaltnickel-chromium-tungsten alloy that combines excellent high-temperature strength with good resistance to oxidizing environments up to 1800° F (980° C) for prolonged exposures, and excellent resistance to sulfidation. It can be fabricated and formed by conventional techniques, and has been used for cast components. Other attractive features include excellent resistance to metal galling.

Available Product Forms:
Material is produced in the form of plate, sheet, strip, billet, bar, wire, coated electrodes, pipe and tubing.