IMPROVEMENT ON COLD-ROLLING（DRAWING）PROCESS FOR EXTRA-LOW CARBON STAINLESS STEEL SEAMLESS TUBE

Presented in the article is a description regarding the improvement on the manufacture process for final tubular products under 57mm in O.D. made from the extra-low carbon stainless steel blooms of 80mm in Dia., covering such operational steps as bloom peeling,piercing and cold-rolling （drawing）.Also dealt with here is a preliminary invesigation on the effectiveness of the said improved process.