On August 10-11, American Petroleum Institute (API) officials carried out inspections at the request of Chinese tubemaker Hengyang Valin Steel Tube Co., Ltd which is seeking to extend its API5CT certification to include additional production specification levels (PSLs).
Currently, market demand for PSL2 and PSL3 casing tubes is increasing, but Hengyang Valin Steel Tube's present API5CT certification only covers PSL1 products.
Following inspections, the API officials announced that Hengyang Valin Steel Tube has the capability to produce PSL2 and PSL3 casing tubes. After a final report is made to API headquarters, a new extended certification is expected to be awarded to Hengyang Valin Steel Tube.