GB/T8162 20# mainly used for general structure and mechanical structure, can not be used for pressure pipeline steel tubes.
GB/T 8162 20# Seamless steel tube process:
Tube billet heating - inspection - skin - - - perforation, pickling, grinding, dry lubrication, welding head, cold drawing, solid solution treatment, pickling, pickling passivation - inspection - cold rolled - oil - cutting head - dry - polishing, polishing, inspection, identification, finished product packaging
GB/T 8162 20# Industrial pipe process flow
Tube billet heating - inspection - skin - - - perforation, pickling, fix the mushroom - lubrication dry - welding head - cold drawn - solid solution treatment, pickling, pickling passivation - inspection
GB/T 8162 20# Steel Chemical Composition:
|
Standard |
Grade |
C |
Si |
Mn |
P< |
S< |
Cu< |
Ni< |
Cr< |
|
GB/T8162 |
20# |
0.17-0.24 |
0.17-0.37 |
0.35-0.65 |
0.035 |
0.035 |
0.25 |
0.25 |
0.25 |
GB/T 8162 20# steel Mechanical Property:
|
Grade |
Yield Strength (Mpa) |
Tensile Strength (MPa) |
Elongation (%) |
|
20# |
≤16mm |
＞16mm-30mm |
≥30mm |
≥390 |
≥20 |
|
≥245 |
≥235 |
≥225 |
If you want to know more about #20 structural steel, please feel free to contact us.
