Technology
Technology of Beite Steel Pipe
Product Specification Range:
Technological Process
Condition On Delivery:
It refers to the state of final plastic deformation or final heat treatment of the delivered product. The hot-rolled or cold drawn (rolled) state or manufacturing state generally delivered without heat treatment; the heat-treated state after heat treatment delivery, or the normalizing, tempering, solid solution, annealing according to the type of heat treatment status.
| Delivery status | Abbreviation | Description |
|
Cold-finished/hard
(cold-finished as-drawn)
|
BK | No heat treatment after the last cold-forming process. The tubes therefore have only low deformability. |
|
Cold-finished/soft
(lightly cold-worked)
|
BKW | After the last heat treatment there is a light finishing pass (cold drawing) With proper subsequent processing, the tube can be cold-formed (e.g. bent, expanded) within certain limits. |
| Annealed | GBK | After the final cold-forming process the tubes are annealed in a controlled atmosphere or under vacuum. |
| Normalized | NBK | The tubes are annealed above the upper transformation point in a controlled atmosphere or under vacuum. |
Delivery according to actual weight or delivery according to theoretical weight
Actual weight - at the time of delivery, the weight of its product is delivered according to the weighing (weighing) weight;
Theoretical weight - The weight of the product at the time of delivery is calculated from the nominal size of the steel.
ASME ANSI B36.10/ASME ANSI B36.19 Specifications
ANSI: American standard system
B36.10: seamless steel pipe and welded steel pipe
ANSI B36.10 Wall thickness levels are:
Sch10, Sch20, Sch30, Sch40, Sch60, Sch80, Sch100, Sch120, Sch140, Sch160 ten levels.
B36.19: stainless steel tube
ANSI B36.19 Wall thickness grade: Sch5s, Sch10s, Sch40s, Sch80s four grades.
ASME / ANSI B36.10 seamless steel pipe and welded steel pipe and ASME / ANSI B36.19 stainless steel pipe: steel pipe size, diameter, wall thickness, pressure, and other work.
ASME / ANSI B36.10 / 19 outer diameter and wall thickness table:
