SIGN IN
News
Shanghai University Successfully Develops the World's First Grade 19.8 Bolt
Add to my favorite
2021-12-08
After more than a year of trial and error, the team working on high performance steel at Shanghai University of Material Science and Engineering worked with 7 other collaborators, and successfully developed the world's first Grade 19.8 ultra-high strength bolt dubbed as the world's strongest fastener. By optimizing the material and heat treatment, the Grade 19.8 bolt achieves a tensile strength of 1900~2070MPa under room temperature. A shear test compliant to GJB 3376-1998 standard reveals the bolt's shear at 115KN. A room temperature tensile fatigue strength test compliant to GJB 3376-1998 and GJB715.30A-2002 standards reveals that the bolt didn't break during the test and didn't crack on the bolt's surface and threads after its removal. This newly-developed ultra-high strength bolt can meet requirements with its combined performance.
Shanghai University of Material Science and Engineering
Grade 19.8
ultra-high strength bolt
上海材料學院
19.8等級
超高強度螺栓
扣件
國際展會
惠達雜誌
匯達實業
外銷媒合
廣告刊登
螺絲五金
五金工具
紧固件
台灣扣件展
印度新德里螺絲展
越南河內螺絲展
墨西哥瓜達拉哈拉螺絲展
美國拉斯維加斯螺絲暨機械設備展
波蘭克拉科夫螺絲展
義大利米蘭螺絲展
德國司徒加特螺絲展
wire Dusseldorf
FASTENER FAIR INDIA
FASTENER FAIR VIETNAM
FASTENER FAIR MEXICO
FASTENER POLAND
FASTENER FAIR ITALY
FASTENER FAIR GLOBAL
FASTENER WORLD
READ NEXT
Subscribe
