Precision Cold-rolled Seamless Tube with Bright Annealling
Production Process:
DIN highly acurate, cold rolled and bright seamless steel tube is used as the tube to be galvanized. The outer wall of tube is electroplated. The caps are covered at two ends of tube to prevent from the dust.
Main Features:
White galvanized, color galvanized (yellow galvanized). The outer wall of tube has good property for antirust and anticorrosion.
Main Application:
used in hydraulic system, in the occasion where the requirement for antirust and anticorrosion of outer wall is relatively high.
In spection and test:
Mandatory:
Chemical compostion
Tensile test Dimensional inspection
Visual examination
Optional:
Flattening test or drift expanding test
Roughness measurement
NDT for longitudinal imperfections
NDT for verification of leak tightness