Частное Акционерное Общество "Сентравис Продакшн Юкрейн"
Государственное Предприятие "Научно-Исследовательский И Конструкторско-Технологический Институт Трубной Промышленности Им. Я.Ю. Осады"
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Publication of UA77963UpublicationCriticalpatent/UA77963U/en
A method for manufacturing pipes of austenitic steels includes heating pre-drilled pieces, expansion thereof, heating the obtained hollow pipes, pressing, further cooling in water. Heating the billets prior to expansion is carried out to a temperature, which is determined by the formula. Heating the hollow pipes before pressing is carried to a temperature, which is by 1.017-1.034 times higher than the heating temperature of the billets prior expansion.
UAU201206408U2012-05-282012-05-28Method for manufacturing pipes of austenitic steels
UA77963U
(en)
High yield ratio hot rolled steel sheet which has excellent low temperature impact energy absorption and haz softening resistance and method of production of same