GOST 8731 Steel Pipes

GOST 8731 steel pipes We are leading manufacturer and stockist of GOST 8731 steel pipes in China.GOST 8731 steel pipes Chemical CompositionStandard Grade C Mn Si P S Cu Ni Cr Mo V Al N Nb,Website:http://www.petrosteels.com,Ti,B,As and W GOST100,07-0,140,35-0,650,17-0,37≤0.035≤0.040.15GOST200,17-0,240,35-0,650,17-0,37≤0.035≤0.040.25GOST350,32-0,400,50-0,800,17-0,37≤0.035≤0.040.25GOST450,42-0,500,50-0,800,17-0,37≤0.035≤0.040.25GOST20X0,17-0,230,50-0,800,17-0,37≤0.035≤0.0350.70-1.00GOST 8731 steel pipes Mechanical PropertiesStandardGradeHeat Treatment Pour Point Re min. (Mpa)Tensile Strength Rm (MPa) Elongation            A5 min.            (%)Impact (J)t 0-16 mm 1 16-40 mm t 40-65 mm GOST1035320624GOST2041224521GOST3551029417GOST4558832314GOST20X431-16 GOST 8731 steel pipes ToleranceOutside DiameterTolerance (% as)ThicknessTolerance (% as)High AccuracyOrdinary AccuracyHigh AccuracyOrdinary Accuracy219 and lower+ / - 0,8+ / - 1,015 and lower+ / - 12.5- 15.0 / + 12.515-30 inter- 12.5 / +10+ / - 12.530 and top+ / - 10.0- 12.5 / + 10.5219 and top+ / - 1,0+ / - 1,2515 and lower- 15.0 / + 12.515-30 inter- / + 12.530 and top- 12.5 / + 10.00The types of GOST 8731 steel pipes  GOST RUSSIA STANDARD  Smooth Seamless Steel Tubes  GOST 8732 10 steel pipes  GOST 8732 20 steel pipes  GOST 8732 45 steel pipes  GOST 8731 10 steel tubes  GOST 8731 20 steel tubes  GOST 8731 45 steel tubes  GOST 8732 10 steel tubes  GOST 8732 20 steel tubes  GOST 8732 45 steel tubes  GOST 8731-74 Seamless Hot-Deformed Steel Tubes  GOST 8732-78 Seamless hot-deformed steel tubes  GOST 8733-74 Seamless cold and warm deformed steel tubes  GOST 8734-75 Seamless cold and warm deformed steel tubes  GOST 9567-75 Precision steel tubes  GOST 9940-72 Seamless hot deformed tubes made of corrosion resistant steel  GOST 9941-72 Seamless cold and warm deformed tubes made of corrosion Resistant steel  GOST 10498-63 Especially thin walled seamless tubes made of corrosion resistant (stainless) steel  GOST 1060-76 Steel seamless cold-deformed tubes for shipbuilding  GOST 5654-76 Steel seamless hot-deformed tubes for shipbuilding  GOST 550-75 Steel seamless steel tubes for petroleum processing and petrochemical industry  GOST 14162-69 Small-sizes steel tubes ( capillary )  GOST 10192-62 Bimetallic seamless tubes  GOST 21945-76 Seamless hot-deformed steel tubes made of alloys on the basis of titanium  GOST 21729-76 Seamless cold-deformed and hot-deformed tubes made of structural carbon and alloyed steel  GOST 22786-77 Bimetallic seamless tubes for shipbuilding  GOST 631-75 Internal-external upset drill tubes with couplings  GOST 8467-57 Drill tubes for geology-exploring with nipple connections  GOST 632-64 Casing tubes with couplings  GOST 6238-77 Casing and coring tubes for geology-exploring drilling and nipples to them  GOST 633-63 Tubing pipes with couplings  GOST 11249-73 Steel rolled up soldered double-layer tubes  GOST 3262-75 Steel tubes for water and gas supply with couplings  TU 14-3-460-74 SEAMLESS STEEL TUBES FOR ELEVATED TEMPERATURES (20)(12H1MF/15HM )  GOST 13663-68 Shaped steel tubes  GOST 3664-68 Steel tubes star-shaped  GOST 13665-68 Corrugated steel tubes.  GOST 13666-68 Many-ribbed steel tubes.  GOST 13667-68 Ribbed steel tubes  GOST 13668-68 Steel tubes with inside splines  GOST 8639-82 Square steel tubes.  GOST 8642-68 Oval steel tubes.  GOST 8644-68 Flat-sided oval steel tubes  GOST 8645-68 Rectangular steel tubes.  GOST 11681-65 Bended stainless steel tubes  GOST 11682-65 Bended stainless steel tubes  TU 14-3-190-82 SEAMLESS STEEL TUBES FOR ELEVATED TEMPERATURES (10)  TU 14-3-460-74 SEAMLESS STEEL TUBES FOR ELEVATED TEMPERATURES (20)(12H1MF/15HM )  GOST 10192-62 Bimetallic seamless tubes  GOST 21945-76 Seamless hot-deformed steel tubes made of alloys on the basis of titanium  GOST 21729-76 Seamless cold-deformed and hot-deformed tubes made of structural carbon and alloyed steel  GOST 22786-77 Bimetallic seamless tubes for shipbuilding  GOST 13663-68 Shaped steel tubes  GOST 3664-68 Steel tubes star-shaped  GOST 13665-68 Corrugated steel tubes  GOST 13666-68 Many-ribbed steel tubes  GOST 13667-68 Ribbed steel tubes  GOST 13668-68 Steel tubes with inside splines  GOST 8639-82 Square steel tubes  GOST 8642-68 Oval steel tubes  GOST 8644-68 Flat-sided oval steel tubes  GOST 8645-68 Rectangular steel tube  GOST 11681-65 Bended stainless steel tubes  GOST 11682-65 Bended stainless steel tubes  TU 14-3-190-82 SEAMLESS STEEL TUBES FOR ELEVATED TEMPERATURES (10)ONE OF THE KIND, MILLIONS OF CHOICES  SUPERIOR QUALITY  PROMPT DELIVERY  FAVORABLE FEEDBACK  ALL AVAILABLE IN PESCO  SELECT PESCO, YOU WILL BE RIGHT  For more info and price of GOST 8731 steel pipes, please send us inquiry and you will have quick reply soon.