Iron-chromium-nickel steels, high-temperature

Jt has recently been stated that iron-aluminium alloys, containing up to about 20 per cent, aluminium and about L per cent, each of nickel and chromium, compare in appearance with high chromium nickel steels, and have been produced in sheet form. Those alloys arc brittle as cast," hut may he made ductile by low-temperature annealing. V idr Journal of Uu Royal Society of Arts, Vol. XC11, No. 4603, p. 240.)... 

Tube O.D. Carbon Steel High Alloy Steel (750) Low Alloy Steel (850) Nickel-Cooper (600) Nickel (850) Nickel-Chromium-Iron (1000) Alum mum Almninmn Alloys, Copper Copper Alloys, Titanimn Alloys at Code Maximmn Allowable Temperature... 

INMETCO s High Temperature Metals Recovery process reclaims the nickel, chromium, iron, molybdenum and cobalt fi om the secondary wastes indicated above and produces a remelt alloy in cast pig form, weighing 25-30 pounds. The remelt alloy is shipped to most of the stainless steel manufacturers in the United States, as well as certain other international companies, for use as raw material feedstock in the production of more stainless steel. As an ISO 9002 certified facility, INMETCO, a fully permitted facility, is the only High Temperature Metals Recovery facility in North America dedicated to the recovery of nickel, chromium, iron and molybdenum from both hazardous and non-hazardous wastes. 

Sodium oxide is the most objectionable impurity in sodium, in so far as high-temperature heat-transfer systems are concerned. Even though great care may be taken in keeping sodium free of sodium oxide during its preparation, sodium may easily be contaminated with the oxide, even in a gas-tight system. Oxides of nickel, iron, and chromium on the walls of a stainless steel system, for example. 

Emission spectroscopy with arc and spark excitation has been used since the 1930s for many industrial analyses. In metaUurgy, for example, the presence in iron and steel of the elements nickel, chromium, sihcon, manganese, molybdenum, copper, aluminum, arsenic, tin, cobalt, vanadium, lead, titanium, phosphoms, and bismuth have been determined on a routine basis. Modem instruments can also measure oxygen, nitrogen, and carbon in metals, which used to require separate measurements with dedicated high-temperature... 

Jen] Jenkins, C.H.M., Bucknall, E.H., Austin, C.R., Mellor, G.A., Some Alloys for Use at High Temperatures. Part IV The Constitution of the Alloys of Nickel, Chromium and Iron , J. Iron Steel Inst, 136, 187-222 (1937) (Phase Diagram, Phase Relations, Review, Experimental, 36)... 

Steel An alloy of iron. Other elements are added to form steel of different characters. Mild steel is used for car bodies and household appliances. It rusts easily and is galvanized, enameled, or painted to protect the surface. Stainless steel consists of 74% iron, 18% chromium, 8% nickel. It does not rust and has many uses. Steel used for cutting contains tungsten steels used at high temperature contain molybdenum. 

---