GB 8162-2008 Seamless Steel Tube

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GB 8162-2008 Seamless Steel Tube

Details of GB/T8162-2008 Seamless Steel Tube

The seamless structural tube (GB 8162-2008) is a kind of tube for general structure and mechanical structure. It is a variety of seamless steel pipe because of its different uses.    

Outer diameter:1/2" to 36" 

Wall thickness:SCH 40, SCH 80, SCH 160, SCH XS, SCH XXS, All Schedules

Producing Process of GB/T8162-2008 Seamless Steel Tube

Hot rolled

round tube billet → heating  → piercing→ three roll skew rolling ,continuous rolling or extrusiong → pipe striping → diameter setting or reducing→ cooling→ straightening→ hydraulic pressure test→ non-destructive test→ marking → storage

cold drawn

round tube billet → heating→ piercing→ heating annealing → acid  pickling→ oiling （copper plating）→ multi cold drawing tube→ heat treatment→ straightening → hydraulic pressure test → nondestructive test → marking → storage

Package：

6" below are bundled with steel strips at both ends of the steel pipe,

6"  and above in loose

Prduct Show of GB/T8162-2008 Seamless Steel Tube

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