Concrete Slick Line Life to Increase by 1,300%
NanoSteel ID clad wear pipe replaces unprotected mild steel pipe for improved slurry abrasion wear resistance
Saskatchewan government regulations require spent sections in uranium mines to be completely encased in concrete. The transport of massive amounts of concrete to spent mine locations underground and process of gradual encasement can go on for many years.
Historically, concrete has been transported from surface to underground operations through a vertical delivery system, or slick line, fabricated from L80 mild steel pipe. At a northern Saskatchewan uranium mine, severe wear from slurry abrasion results in costly down time from the pipe requiring replacement every 16 months.
Seeking an alternative which offers increased wear resistance and will last the remaining life of the project, a Saskatchewan uranium mine installed a delivery system with NanoSteel’s SHS 9800 alloy welded to the inside diameter (ID) of L80 pipe. Mine engineers have projected the NanoSteel ID clad wear pipe to last 17.5 years, an increase in wear life by a factor of 13x, which will save the mine millions in replacement costs.
Many vertical delivery systems are installed by welding pipe joints together, which is a slow joining method. For the Saskatchewan uranium mine, NanoSteel ID clad wear pipe was threaded during manufacture and connected on site with zero difference couplings, a faster joining method which greatly reduced installation time.
Vertical concrete delivery system
A uranium mine in Canada has installed a vertical concrete delivery system with NanoSteel’s SHS 9800 alloy welded to the inside diameter (ID) of L80 pipe
Superior abrasive wear resistance
In ASTM G65-04 sliding abrasion wear tests, NanoSteel's SHS 9800 alloy is more than 30 times more wear resistant than mild steel
Faster installation with threaded joints
Male and female ends of the NanoSteel ID clad wear pipe was threaded during manufacture and connected on site with zero difference couplings