Production method of ultra-large-diameter duplex stainless steel diameter-forged pipe blank

• Main Authors: LI JUN, WEI HAIRUI, PEI MINGDE, LIANG XIANGXIANG, HAO WENHUI, HOU WENJUN, LI GUOPING, QIN YUHANG
• Format: Patent
• Language: Chinese; English
• Published: 16.07.2024
• Subjects: FORGE FURNACES; FORGING; HAMMERING; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; PERFORMING OPERATIONS; PRESSING METAL; PUNCHING METAL; RIVETING; TRANSPORTING

The invention discloses a production method of an ultra-large-diameter duplex stainless steel diameter-forged tube blank, which comprises the following steps: selecting a 8.4 t square billet as a blank, heating the square billet at 1250 +/-10 DEG C for 2.0-8.0 hours, and upsetting the square billet...