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Help CenterHigh Quality Q235 Q345 Hot Rolled Carbon Seamless Structure Pipe
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Seamless Structure Pipe(GB/T8162-2008) is a seamless tube for general structure and mechanical structure. It is a kind of seamless steel pipe which is divided into different kinds because of its different uses.GB/T8162-2008 (seamless pipe for structure) is mainly used in general structure and mechanical structure. Its representative materials (grades): carbon steel 20, 45 steel, Q235, alloy steel Q345, 20Cr, 40Cr, 20CrMo, 30-35CrMo, 42CrMo, etc.Because of its different manufacturing process, it can be divided into hot-rolled (extruded) seamless steel pipe and cold-drawn (rolled) seamless steel pipe. Cold-drawn (rolled) pipes are divided into circular pipes and special-shaped pipes.
Product Specification
Product name |
Seamless Structure Pipe |
Technique |
Cold drawn/Hot Rolled |
Grade Group |
10#-45#, 10Cr9Mo1VNb, 15NiCuMoNb5, 16Mn, API J55-API P110 16Mn, A53-A369, Q195-Q345, ST35-ST52 |
Surface treatment |
black, mill,lacquer,or others |
Specification |
OD: 6mm~914.4mm WT:1mm~66mm LENGTH:6m~12m |
Application |
structural/fluid pipe/gas/oil/and more |
Sample |
Free sample and shipping fee paid by customer first,return in the order |
Production Process
Hot Rolled Seamless Steel Pipe Crafts Process
Billet Inspection→Cutting of Qualified Billet→Heating→Hot Piercing→Rolling→Heating→
Sizing→Cooling Bed→Straightening&Cutting→Cutting→NDT→Surface Inspection→Packing
Hot Expanding Seamless Steel Pipe Crafts Process
Choosing material→Steel Pipe Inspection→Cutting Material→Cleaning Pipe→On shelf→Hot Expanding→Sizing→Cooling Bed→Size Test→Straightening&Cutting
→Mechanical Properties→Bevel→Hydro test→Blasting→Nondestructive test→Packing
3. Packing in wooden case,
4. Delivery in containers,5. Delivery in bulk cargo.
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