Applicationt:
universal
Production Description:
seamless precision steel tube with bright and smooth surface
DIN2391 seamless precision steel tube
Material: ST35,ST45,ST52.
Manufacturing method: cold-rolled/cold-drawn
Delivery condition:BK,BKS,SR,GBK,NBK.
Size tolerance:
OD below 10mm, size tolerance: +/-0.025mm OD between 10mm-18mm, size tolerance:+/0.05mm
Wall thickness or internal diameter can be ensured.
NBK means protective heat-treating under the non-oxidation enviroment to get a bright and smooth surface for the tubes.
Packing: in bundles tied with steel strips. External packing by wooden cases if the wall thickness/OD ratio is low.
Oil-coating is generally necessary especially for export.
Application: fuel injection pipe,or other precision application.