Yield Strength Steel Tube Application:Oil/fluid pipe Certification:ISO,API Stock At Present:2431.72MT Yield Strength Testing Yield Strength Steel Tube Product NameYield Strength Steel Tubes SizeOD219---2020mmWT5 -- 18mmLength6- 12mStandardBS EN 10296, BS EN 10025,BS EN 10297,BS6323, GB/T 13793-1992,GB/T 14291-2006, GB/T 3091-1993,API5L,SY/T5037,CJ/T3022,ASTM A252Ends1) Plain2) Beveled3) ThreadEnd ...