Pure cold drawn steel tube main use: automobile, machinery, motorcycles, refrigeration equipment, pneumatic cylinder, hydraulic parts, bearings, and other mechanical properties of steel precision, smoothness, cleanliness, have high requirements of the customers. Precision cold drawn pipe (finishing) is to use cold drawn pipe seamless pipe as a raw side impact door beams material processing control the tolerance and surface brightness and the high precision of steel tube material.
Precision cold drawn pipe has high precision, high finish, good internal cleanliness, steel pipe under high pressure without leakage, cold bending deformation, flaring, flattening without cracks and other characteristics, can make all kinds of complex deformation and mechanical processing. The chemical composition of the precision cold drawn pipe with carbon sulfur C, Si, Si, Mn, Mn, S, P, P, chromium Cr.
Precision cold drawn steel tube packing requirements in three kinds: bundling, packing, painting oil strapping or oil packing.
Packing general provisions, the steel tube packing should beam impact tubes be able to guarantee the normal discharge, not loose, do not damage during transport and storage, steel pipe are banding bundles with steel belt card buckle type packing way, each strip must be taut, are not allowed to loose, taut strip after do not allow the axial and radial motion, steel belt buckle with card and card of each point card printing are to make the steel belt buckle side deformation to steel belt buckle, the buyer of steel tube packaging materials and packaging have special requirements, should be both sides talks things over, and indicate in the contract.
The advantages of cold drawn steel tube (cold rolled steel tube):
1. The outer diameter was smaller.
2. High precision to do small batch
3. The cold drawing (rolling) finished impact beam tubes products of high precision, good surface quality.
4. The steel pipe transverse area is more complex.
5. Steel pipe is superior performance, compared to metal.