Titanium seamless tube made by extrusion process, welded titanium pipe with curled sheet welded after. General titanium seamless tube wall thickness is relatively small, relatively small caliber. Titanium tube titanium tube Executive standard: ASTM B337, ASTM B338, ASTM B338B861 Titanium seamless tube: Diameter: O.D6-108mm Wall thickness:0.5-8mm Length: the length 15000mm Welding of titanium tube: Diameter: O.D100-610mm titanium seamless tube Wall thickness:2-6mm As long as the welding process of clearance, there is not much difference in the use of. Galvanized steel pipe steel pipe: in order to improve the corrosion resistance of steel, general ( clarinet ) galvanized. Galvanized steel galvanized electrical steel and zinc in two, hot galvanized zinc layer thickness, electric galvanized low cost. Oxygen blowing pipe: used for steel-smelting blowing tube, usually with small diameter welded steel pipe, specifications from 3/ 8inch - 2 inch eight. In 08,10,15,20 or Q195-Q235steel strips. For corrosion resistance, some aluminizing. Wire casing: ordinary carbon steel welded steel pipe is used in concrete structure, and various distribution engineering, commonly used nominal diameter from 13-76mm. Wire sleeve tube with thin wall, mostly for coating or galvanized after use, requirements for cold bending test. Metric pipe: specifications seamless tube form, with outer diameter * wall thickness in mm welded steel pipe, using common carbon steel, high carbon steel or low alloy steel to tropical, with cold welding, or tropical welding after cold drawing method. Metric pipe branch and thin-walled, common used to structure, such as a drive shaft, or transmission fluid, thin wall used in the production of furniture, lamps and so on, to ensure that the steel strength and bending test. Roller tube: used for belt conveyor idler steel pipe, generally with Q215, Q235A, B steel and20steel, diameter 63.5-219.0mm. The canal curvature, surface and centre line, ellipse has certain requirements, the general water and flattening test. Transformer tube: used in the manufacture of transformer radiator tube and other heat exchangers, uses the ordinary carbon steel manufacturing, requirements for compressed, flaring, bending, hydraulic test. Steel tube length or double length delivery, for steel pipe bending degree requirements. Shaped tube: ordinary carbon structural steel and by16Mn steel welded square tube, rectangular tube, pipe, air cap plastic steel doors and windows with steel, mainly used for agriculture machinery components, steel window doors. Welding of thin-walled tube: mainly used to make furniture, toys, lamps and other. In recent years with stainless steel production of thin walled tube is widely applied, senior furniture, decoration, fences etc.. Spiral welded pipe: low carbon carbon steel or low alloy structural steel strip by certain helix angle ( called forming angle ) rolled into a tube, and the pipe joint welding material, it can use a narrow strip production of large diameter steel pipe. Spiral welded pipe is mainly used in oil, natural gas pipelines, the specification of wall thickness of said outer diameter *. Spiral welded pipe with one side welding and double welding, pipe should ensure that the hydraulic pressure test, the tensile strength of the welding seam and the cold bending property shall comply with the provisions of.