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.

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 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.