Production method of high-temperature high-nickel alloy seamless pipe

The invention relates to a production method of a high-temperature high-nickel alloy seamless pipe. The production method is characterized by including the steps of firstly, smelting metal; secondly, cogging steel ingots, and detecting flaws and grinding; thirdly, hot rolling; fourthly, machining into a pipe billet; fifthly, cold rolling or cold drawing; sixthly, performing solution treatment; seventhly, detecting flaws; eighthly, pickling; ninthly, inspecting and storing. The production method has the advantages that vacuum smelting and electroslag remelting are used, the evacuation operation procedure of a feeding chamber is simplified, molten steel components are even, purity is increased, the mechanical property of the high-temperature high-nickel alloy seamless pipe is increased greatly, and the heat machining performance is increased.