China GOST 8732 Steel 20 Hot Formed Carbon Seamless Steel Pipe

GOST 8732 steel 20 hot formed carbon seamless steel pipe
Seamless carbon steel pipe
OD: 10mm-610mm
W. T.: 1.65-60mm
Standard: GOST8731,GOST 8732,GOST 8734-78,GOST 8733-74,GOST 550-75,et
Material: 10#,20#,Q195,Q235,Q345,Gr.A,Gr.B etc.
Dimensions of pipes and tolerances according to GOST 8732-78.
Technical requirements according to GOST 8731-74.
Length from 4 up to 11.7 m depending on diameter and wall thickness.
Groups of metrics of quality:
BВ - with rate setting of chemical composition for killed steel (grades according to GOST 1050-88, GOST 4543-71, GOST 19281-89);
V - with rate setting of mechanical properties and chemical composition;
G - with rate setting of chemical composition and control of mechanical properties for heat-treated samples. Mechanical properties are according to steel standards.

DeminsionOD, mmWT, mmOD, mmWT, mmOD, mmWT, mm32 - 33,72,8 - 4,089 - 953,5 - 241465 - 3838 - 42,43 - 4,5102 - 1084 - 281525 - 4045 - 543,5 - 6,01144,5 - 281595 - 4257 - 683,5 - 141215 - 30168 - 1946 - 45703,5 - 161275 - 32203 - 2198 - 4573 - 763,5 - 201335 - 35 82,5 - 833,5 - 221405 - 36

Mechanical propertiesSteel GradeTS, N/mm2(min)YS,N/mm2 (min)E, % (min)103532162420412245213551029417455883231410Mn24212652120Cr431-1640Cr657-930CrMnSi686-1115CrMo4312252130CrMn58839213

Chemical composition (%, max)Steel GradeCSiMnCrNiMoSPCuN100,07-0,140,17-0,370,35-0,650,150,3-----200,17-0,240,17-0,370,35-0,650,250,25