Our tube billets are mainly used for the manufacture of high, medium and low-pressure boiler tubes, pressure vessel tubes，drill collars and casing couplings for oilfields. Our round tube billet products for high, medium and low-pressure boiler tubes, pressurized vessel tubes are compliant with YB/T5137, the U.S. ASME SA-213, SA-210 and other related standards, with relevant production licenses granted by a Chinese government agency. Round tube billets for the petroleum industry are mainly used for the manufacture of drill collars and casing couplings. The U.S. API standard and customer technical requirements are applied in our production.
 
Typical steel / performance standards

Product Size Range


Description:
(1) Delivery state: hot-rolled, annealed and bright bars.
(2) Listed specifications are only typical grades; products of required specifications can be developed/produced per international, Chinese or industry standards, or based on agreements with customers.