KR850007098A - High strength alloy used in industrial container and manufacturing method thereof - Google Patents

Abstract

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Description

High strength alloy used in industrial container and manufacturing method thereof

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Graph showing yield stress vs. section shrinkage.

Claims (27)

Essentially about 24-32% nickel, about 12-19% chromium, about 1-3.5% molybdenum, about 2-5.5% copper, about 2.5% titanium, about 1.5% manganese, about 1.5% silicon, about 1.5% And tantalum up to about 1%, aluminum up to about 0.2%, cerium up to about 0.1%, boron up to about 0.01%, nitrogen up to about 0.2%, the rest is almost iron and contains high traces of impurities and corrosion resistance Nitride nickel-chromium alloy. The method of claim 1, wherein about 28% nickel, about 16% chromium, about 2% molybdenum, about 4% copper, about 1.8% titanium, up to about 0.1% cerium are almost iron and trace impurities Containing alloys. The alloy of claim 1, which contains at least about 0.8 titanium and is age hardenable. According to claim 1 essentially about nickel about 28%, chromium about 16%, molybdenum about 2%, copper about 4%, titanium up to about 0.8%, manganese about 1%, silicon about 0.4%, colombium and tantalum top About 0.4%, up to about 0.2%, up to about 0.1% of cerium; the remainder is almost iron and contains trace impurities. The alloy of claim 1, wherein the alloy contains less than about 0.8% titanium and is not age hardenable. The alloy of claim 1, wherein the alloy is heat treated for up to about 16 hours in a temperature range of about 1100 to about 1400 ° F. 6. The alloy of claim 1 characterized by an alloy in tubular form. 8. The alloy of claim 7, wherein the tube is heat treated for up to about 16 hours in a temperature range of about 1100 to about 1400 degrees Fahrenheit. Essentially about 24-32% nickel, about 12-19% chromium, about 1-3.5% molybdenum, about 2-5.5% copper, about 2.5% titanium, about 1.5% manganese, about 1.5% silicon, colombium And up to about 1% of tantalum, up to about 0.2% of aluminum, up to about 0.1% of cerium, up to about 0.01% of boron, up to about 0.2% of nitrogen; the remainder is almost iron and contains high-strength impurities. Industrial containers made of alloys. 10. The method of claim 9, wherein about 28% nickel, about 16% chromium, about 2% molybdenum, about 4% copper, about 1.8% titanium, up to about 0.1% cerium, most of which is iron and trace impurities Containers made of alloys containing these. 10. The method of claim 9, wherein about 28% nickel, about 16% chromium, about 2% molybdenum, about 4% copper, about 0.8% titanium, about 1% manganese, about 0.4% silicon, colombium and tantalum A container of an alloy containing about 0.4%, up to about 0.2% nitrogen, about 0.1% cerium and trace amounts of impurities. 10. The container of claim 9, wherein the container contains at least about 0.8 titanium and is an age hardening alloy. 10. The container of claim 9, wherein the container contains titanium of about 0.8 or less and is an unaging curable alloy. The container of claim 9 which is used as a heat exchanger. 10. The container of claim 9 used as a feed water heater. 10. The container of claim 9, wherein a tube of alloy is formed in the container. The container of claim 9 used in the chemical and petrochemical fields. 10. The container of claim 9, wherein the alloy is tubularly reduced by about 20% of its original size. 10. The container of claim 9, wherein the alloy is heat treated at temperatures ranging from about 1100 to about 1400 [deg.] F. for up to about 16 hours. 10. The container of claim 9, wherein the tube made of alloy is heat treated for up to about 16 hours in a temperature range of about 1100-1400 ° F. Essentially about 26-29% nickel, about 15-18% chromium, about 3% molybdenum, about 5% copper, about 2.5% titanium, about 1.5% manganese, about 1.5% silicon, about 0.2% aluminum Austenitic nickel-iron-chromium alloys having high copper, corrosion resistance and extremely low loss of copper in fluid flows with up to about 0.1% cerium and almost all iron and trace impurities. About 24-32% nickel, about 12-19% chromium, about 1-3.5% molybdenum, about 2-5.5% copper, about 2.5% titanium, about 1.5% titanium, about 1.5% silicon, about 1.5% silicon, colombium and tantalum Up to about 1%, up to about 0.2% of aluminum, up to about 0.1% of cerium, up to about 0.01% of boron, up to about 0.2% of nitrogen; the remainder is almost iron and contains alloys containing trace trace impurities of about 1100 ° -1400 ° F A method for producing high strength and corrosion resistant austenite alloys by heat treatment for a suitable time in the temperature range of. About 24-32% nickel, about 12-19% chromium, about 1-3.5% molybdenum, about 2-5.5% copper, about 2.5% titanium, about 1.5% titanium, about 1.5% silicon, about 1.5% silicon, colombium and tantalum Up to about 1%, up to about 0.2% aluminum, up to about 0.1% cerium, up to about 0.01% boron, up to about 0.2% nitrogen, the remainder is almost iron and contains tubes with trace impurities A method for producing a tube in which the tube is heat treated by annealing and calibrating the tube and then heat-treating the tube for a suitable time in a temperature range of about 1100 to about 1400 ℉. The method for producing a tube according to claim 21, wherein the tube is subjected to an age hardening treatment. The method for producing a tube according to claim 21, wherein the tube is curved in a constant shape. The process according to claim 25, wherein the tube is subjected to stress relaxation treatment after bending. The method of claim 21 wherein the annealing step is carried out at a temperature of about 1700-2800 ° F. for a suitable time. ※ Note: The disclosure is based on the initial application.