With excellent resistance to sulfuric acid dew-point corrosion, NAS 155N (UNS S31727) is a stainless steel custom made for the heat exchangers, flues, and chimneys of heavy oil-fired boilers. This alloy is suitable in a wide range of material applications for antipollution equipment and other devices exposed to a sulfuric acid environment. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, and joining. Filing Code: SS-1059. Producer or source: Nippon Yakin Kogyo Company Ltd.

Boehler L330 VMR is a Ni-Mo-Cr-W alloy with outstanding corrosion resistance that is maintained even in the welded condition. It also has excellent resistance to oxidizing media. It is widely used in the severest environments encountered in chemical processing, pollution control, industrial and municipal waste treatment, and pulp and paper production. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as fracture toughness. It also includes information on high temperature performance as well as forming, heat treating, and machining. Filing Code: Ni-642. Producer or source: Böhler-Uddeholm Specialty Metals Inc.

MAT 21 is a nickel-20 chromium-20 molybdenum-2 tantalum alloy. The very high molybdenum and tantalum content gives excellent general, pitting, and crevice corrosion resistance. The alloy was developed to be resistant to sulfuric acid dew point corrosion. Applications include scrubbers for flue gas desulfurization and heat exchangers to recover waste heat at low temperatures in fossil fuel fired plants. The corrosion resistance of welded joints does not degrade in the as-welded condition. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and shear strength as well as fracture toughness. It also includes information on low and high temperature performance, and corrosion resistance. Filing Code: Ni-532. Producer or source: Mitsubishi Materials Corporation, Okegawa Plant.

CLI-50A is a Korean 6 Mo superaustenitic stainless steel with improved corrosion resistance properties. The chromium additions have been increased up to 22% together with high nitrogen additions. The PREN value [%Cr] + 3.3 [%Mo] + 16[%N] is higher than 45. The alloy is copper free. This alloy is particularly well designed for seawater applications and pollution control equipment. The chemistry is balanced to obtain an austenitic microstructure that explains the high toughness properties, including those at -196deg C (-320 deg F). This datasheet provides information on composition, physical properties, elasticity, tensile properties, and shear strength. It also includes information on forming, heat treating, and joining. Filing Code: SS-660. Producer or source: Cruesot-Loire Industrie.

Allegheny Ludlum AL276 is widely used in the most severe environments found in chemical plants and in power plant desulfurization systems. The high molybdenum level with tungsten gives excellent pitting and crevice corrosion resistance. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on low and high temperature performance, and corrosion resistance as well as forming, heat treating, joining, and surface treatment. Filing Code: Ni-497. Producer or source: Allegheny Ludlum Corporation.

TYPE 317L, 317LX, and 317LXN are austenitic alloys with varying molybdenum and nitrogen contents and thus have varying levels of resistance to pitting corrosion. All are low carbon to resist sensitization. All three alloys are intended for severe service conditions such as flue gas desulfurization systems. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, and joining. Filing Code: SS-542. Producer or source: Allegheny Ludlum Corporation.

INCONEL ALLOY 686 has a higher Cr + Mo + W content than the current generation of corrosion-resistant nickel-base alloys and exhibits improved corrosion resistance over them. The alloy could be used in reducing mineral acids and FGD equipment. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on high temperature performance, and corrosion resistance. Filing Code: Ni-421. Producer or source: Inco Alloys International Inc.

JESSOP JS Alloy 276 is a nickel-chromium alloy with high molybdenum and moderate tungsten but low iron and silicon contents. This composition provides superior corrosion resistance to a wide variety of environments. It has found wide acceptance in the chemical and petrochemical process industry, flue gas desulfurization systems and the pulp and paper industries. This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on high temperature performance and corrosion resistance as well as heat treating, machining, and joining. Filing Code: Ni-330. Producer or source: Jessop Steel Company. Originally published March 1986, revised April 1988.

JESSOP Type 316 is a molybdenum-bearing austenitic chromium-nickel stainless steel with greatly increased resistance to pitting and crevice corrosion in comparison with AISI Type 304 stainless steel. In addition, Jessop Type 316 offers superior creep, stress-to-rupture and tensile strengths at elevated temperatures. Type 316 is suitable for a wide range of applications in chemical and petroleum processing, power plants, pollution-control equipment, pulp and paper plants and food and pharmaceutical processing. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: SS-488. Producer or source: Jessop Steel Company.

JESSOP JS825 is a wrought nickel-iron-chromium-molybdenum-copper alloy for use in extremely corrosive environments. The many corrosion-resistant properties of JS825 make the alloy a suitable choice for a variety of difficult applications. It is suitable for such applications as chemical and petrochemical processing, pulp and paper manufacturing, flue gas desulfurization systems and metal pickling operations. This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Ni-293. Producer or source: Jessop Steel Company.