Cold Drawn Seamless Tubing is used for mechanical structures and hydraulic equipment with high dimensional accuracy and good surface finish. It can greatly save machining hours, increase material utilization, and help improve product quality at the same time .
Length:5.8m,6m,11.85m,12m or custermized length
Materials:ASTM A106B, A53A,A53B,API 5L GrB,304,316,316L
Package:Wooden Box or customized
Appearance quality:Shall not have cracks, folds, folds, delamination, hair lines and scars. These defects should be completely removed, and the wall thickness and outer diameter must not exceed the negative deviation after removal.
Both ends:To be cut at right angles and burrs removed.
Package: Strapping, boxing, oil-coated strapping or oil-coated boxing.
The production process:
Pipe billets-Angular hearth furnace-2 roll piercing mill-tube mill-Punch unit-Acid picking-Cold drawn bench-Annealing furnace-Straightener-End saws-Eddy detector-Marking/coating/packing-Fineshed pipes
Cold Drawn Seamless Tubing is a high-precision steel pipe processed by cold drawn or cold rolled or a combination of the two methods. Since the inner and outer walls don’t have oxide layer, It has high pressure without leakage, high precision, high finish, cold bending without deformation, flaring, flattening without cracks, etc.