JSC “Russian Scientific and Research Institute of the Tube and Pipe Industries” (Chelyabinsk, Russia):

Barichko B. V., Cand. Eng., Head of the Department of Seamless Pipes, barichko@rosniti.ru
Bakunova A. A., Acting Head of a Thermal Processing Sector
Kosmatskiy Ya. I., Researcher of Wire Drawing and Pressing Laboratory

Central Scientific and Research Institute of Ferrous Metallurgy, named after I. P. Bardin (Moscow, Russia):

Shlyamnev A. P., Cand. Eng., Deputy Director

“Pipe Metallurgical Company-INOKS” LLC (Russia, Kamensk-Uralskiy):

Buvaev D. N., Head of the Department on Technology and Engineering Development

Increased corrosion resistance of tube steels can be considered as a result of aimed designing of steel composition with assistance of nano-structuring effect at the stage of billet production, as a part of technological cycle of tube manufacturing. Investigations have been conducted on the specimens of cold-deformed tubes from 03Kh17N9AM3 steel and their results have confirmed the conclusions done by the specialists of the Central Scientific and Research Institute of Ferrous Metallurgy (TsNIIchermet) that new steel is characterized by high corrosion resistance against pitting forming and corrosion under stresses, in addition to the good complex of strength and ductile properties as well as sufficient workability during metal forming. Typical microstructure and austenite grain size are analyzed, the resulting histogram is built. Therefore, the new 03Kh17N9AM3 steel can be recommended for manufacture of tubes for special applications, including those for operation under pressure in unfavourable conditions with effect of different corrosion media. These recommendations have been practically used in production of cold-deformed tubes with size 32×3.0 mm, 25×2.0 mm, 16×1.5 mm in the tube rolling shop No. 2 at Volzhsky Tupe Works.

1. Shakhpazov E. Kh., Shlyamnev A. P., Fillipov G. A. et al. Austenitnaya korrozionnostoykaya stal dlya khloridsoderzhashchikh sred i izdelie, vypolnennoe iz nee (Austenitic corrosion-resistant steel for chlorine-containing mediums and product, made from it). Patent RF, No. 2413031, MPK7 С 22 С 38/58, С 22 С 38/54. No. 2009137647/02. Applied: October 13, 2009. Published: February 27, 2011. Bulletin No. 6. 8 p. 
2. Pyshmintsev I. Yu., Vydrin A. V., Kosmatskiy Ya. I. et al. Byulleten nauchno-tekhnicheskoy i ekonomicheskoy informatsii “Chernaya metallurgiya” — Bulletin of Scientific, Engineering and Economic
Information “Ferrous Metallurgy”. 2011. No. 7. pp. 66–69.
3. Medvedev M. I., Bespalova N. A., Tsarkov A. K. Metallurgicheskaya i Gornorudnaya Promyshlennost — Metallurgical and Mining Industry. 2007. No. 3. pp. 56–59.
4. Xie M. S., Wu I. Ch., Huang P. T. et al. Khromonikel-margantsevomednaya austenitnaya nerzhaveyushchaya stal s nizkim soderzhaniem nikelya (Chromium-nickel and magnesium-copper austenitic stainless steel with low content of nickel). Patent RF, No. 2246554, MPK7 С 22 С 38/58. No. 2003102604/02. Applied: January 30, 2003. Published: February: 20, 2005. Bulletin No. 5. 6 p.