Tube forming die
Tube forming dies are essential hardware components for manufacturing metal straight seam welded pipes. Under the external force of the welding die, steel coils undergo progressive cold rolling and curling within the die's arc to form the desired shape, followed by welding to produce a closed welded pipe. Dies can be custom-designed according to customer requirements, including round, oval, square, rectangular, and other special shapes. Welded tube dies are widely used in decorative piping and industrial applications.
Product Details

Tube forming dies are essential hardware components for manufacturing straight-seam welded metal pipes.A steel coil is gradually cold-rolled and curved into shape within the mold's arc under external force, then welded to form a closed welded pipe.Molds can be customized to meet customer requirements, including circular, oval, square, rectangular, and special shapes. Welded tube molds are widely used in the production of decorative tubes, industrial tubes, ERW welded tubes, and other types of tubing.
Mold Material:Cr12MoV/SKD11/D2/Cu-Cr alloy/Cr12, etc.
Tubular:Round, square, rectangular, or custom shapes
Hardness:HRC58-63
Features: RelativeStandard tubular design with minimal pull force and extended service life.

Production Process

Product Model Specifications
|
Tube forming die |
|||||
|
Tubular |
Pipe Diameter Range (mm)
|
Wall Thickness Range (mm) |
Hardness (mm |
Heat treatment |
Material |
|
Round tube
|
Ø5—325 |
0.2—10 |
HRC 58—63
|
Vacuum
|
Cr12MoV, KSD11, D2
|
|
square tube
|
5*5—250*250
|
0.3—8 |
HRC 58—63
|
Nitriding
|
Cu-Cr alloy
|
|
Rectangular Tube |
5*10—200*300
|
0.3—8 |
HRC 58—63 |
Cryogenic
|
Cr12 and others
|
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