gb t 9711 l210 steel strip
GB / T 9711.1 L175,L210,L245,L290,L320,L360 GB / T 9711.2 L245NB,L290NB,L360NB GB / T 9711.3 L245NC,L290NC,L360NC.Casing characteristics.The casing is important for oil drilling equipment,and its main equipment includes drills,core tubes and casings,drill collars and drilled small diameter steel pipes.
GB/T 9711-2011:PDF in English (GBT 9711-2011) GB/T 9711-2011 GB NATIONAL STANDARD OF THE PEOPLES REPUBLIC OF CHINA ICS 75.200 E 98 Replacing GB/T 9711.1-1996, GB/T 9711.2-1999, GB/T 9711.3-2005 Petroleum and Natural Gas Industries - Steel Pipe for Pipeline Transportation Systems (ISO 3183.2007, MOD) ISSUED ON. SSAW Steel Pipe/Spiral Steel Pipe SuncoSpiral steel pipe will strip into the pipe unit, the multi-roll rolling, strip rolled up, forming a circular gap opening gap, adjust the squeeze roll reduction, the weld gap control in the 1 ~ 3mm, and make both ends of the weld flush. GB/T 9711.1:L210
Spiral welded steel pipe is made of the raw material of steel strip coil, formed to round shape by roll molding, automatic double submerged arc welding process to weld the seam, then the pipe will be tested by UT, HT and other inspection to guarantee the quality. Standard:GB/T 9711 , SY/T 5037 , SY/T5040,API 5L . Steel Grade: GB/T 9711 LSAW steel pipeGB/T 9711 LSAW steel pipe. Process:LSAW - UO(UOE)RB(RBE)JCO(JCOE,COE) GB/T9711 L175, L210, L245, L290, L320, L360, L290, L320, L360, L390, L415, L450, L485, L555 168-1820mm 5-50mm 3-18M Petroleum and natural gas industries