Cast steel alloy

Materials of construction depend on the metallurgical requirements and pressure of the gas being compressed hut usually the more popular materials include cast iron, cast steel, alloy steel, or forged steel (high pressure). Figure 12-42 illustrates the extent of damage internally when materials of construction are not resistant to possible effects of internal corrosion. 

A surveillance programme has been established to follow the behaviour of the pipes made of duplex cast steel alloy. 

Depending upon the specific relevant criteria, the materials cast aluminum, cast steel alloy, ureol, obo wood and Rohacell are considered suitable for original surfaces. In the case of slightly curved contours, a welded aluminum or steel construction shows substantial advantages. 

Alloy cast irons. Alloy additions are made to cast irons to improve the properties for particular purposes. Alloy cast irons can be used in engineering applications where plain cast iron is unsuitable and may even replace steel for some components such as crankshafts. 

Gaseous Hydrogen Chloride. Cast Hon (qv), mild steel, and steel alloys are resistant to attack by dry, pure HCl at ambient conditions and can be used at temperatures up to the dissociation temperature of HCl. The corrosion rate at 300°C is reported to be 0.25 cm/yr and no ignition point has been found for mild steel at 760°C, at which temperature HCl is dissociated to the extent of 0.2%. 

Lead and its alloys are generally melted, handled, and refined in cast-iron, cast-steel, welded-steel, or spun-steel melting ketdes without fear of contamination by iron (qv). Normal melting procedures require no dux cover for lead. Special reactive metal alloys require special alloying elements, duxes, or covers to prevent dross formation and loss of the alloying elements. 

A wide range of cutting-tool materials is available. Properties, performance capabilities, and cost vary widely (2,7). Various steels (see Steel) cast cobalt alloys (see Cobalt and cobalt alloys) cemented, cast, and coated carbides (qv) ceramics (qv), sintered polycrystalline cubic boron nitride (cBN) (see Boron compounds) and sintered polycrystalline diamond tbin diamond coatings on cemented carbides and ceramics and single-crystal natural diamond (see Carbon) are all used as tool materials. Most tool materials used in the 1990s were developed during the twentieth century. The tool materials of the 1990s... 

Parameter Carbon and low—medium aHoy steels High speed steels Cast cobalt alloys Carbides Cemented Coated Ceramics Polycrystalline cBN Diamond... 

Carbon disulfide is normally stored and handled in mild steel equipment. Tanks and pipes are usually made from steel. Valves are typically cast-steel bodies with chrome steel trim. Lead is sometimes used, particularly for pressure reUef disks. Copper and copper alloys are attacked by carbon disulfide and must be avoided. Carbon disulfide Hquid and vapor become very corrosive to iron and steel at temperatures above about 250°C. High chromium stainless steels, glass, and ceramics maybe suitable at elevated temperatures. 

Piping—carbon steel, alloy, cast iron, lead-lined, aluminum, copper. Purchasing, expediting, and traffic... 

Casing Connections. Connections shall he A.N.S.I. flat-faced flanges. [Cast iron (125) (250) psig rated] [Duron metal, steel, alloy steel (150) (300) psig rated]... 

Ejectors are available in many materials of construction to suit process requirements. If the gases or vapors are not corrosive, the diffuser is usually constructed of cast iron and the steam nozzle of stainless steel. For more corrosive gases and vapors, many combinations of materials such as bronze, various stainless-steel alloys, and other corrosion-resistant metals, carbon, and glass can be used. 

Tube material includes any that can be formed into a coil, but usually copper, copper alloys, and stainless steel are most common. The casing or shell material can be cast iron, cast steel, cast bronze, fabri-catea steel, stainless, and other high-alloy materials. Units are available with pressure vessel code conformance. 

Grinding balls can be made of forged steel, cast steel, or cast iron. (See under Wear for more information on alloys.)... 

Cast high-alloyed austenitic steel with 19-21% Cr, 24-26%... 

Discussion. Neo-cuproin (2,9-dimethyl-l,10-phenanthroline) can, under certain conditions, behave as an almost specific reagent for copper(I). The complex is soluble in chloroform and absorbs at 457 nm. It may be applied to the determination of copper in cast iron, alloy steels, lead-tin solder, and various metals. 

Ferrous Metals Cast iron, carbon steel, BS970, replacing en steel, alloy steel, spring steel, and casting steel. 

The classical, naturally fragmenting munition consists of an explosive-filled cylindrical shell. The case is generally machined or cast from a steel alloy. 

Stainless steels Alloy 2C cast and wrought in galvanic series, 7 805t Stainless steel surgical needles, 24 206 Stain removal... 

The distribution of nickel consumption by use in 1988 was as follows stainless and heat-resistant steel, 40% nonferrous alloys, excluding superalloys, 21% electroplating, 17% superalloys, 12% and other, 10%. Other uses include cast iron chemicals and chemical use electric, magnet, expansion alloys steel alloys, other than stainless steel batteries and ceramics. Eighty percent of nickel consumption was for the production of nickel metal and alloys (Kirk 1988a). 

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