Seamless titanium tube is made by extrusion process, and welded titanium tube is made by plate crimping. Generally, the wall thickness of seamless titanium pipe is relatively small, and the diameter is also relatively small. Diameter: O.D-6-108mm Wall thickness: 0.5-8mm Length: maximum 15000mm welded titanium pipe: diameter: O.D-100-610mm Wall thickness: 2-6mm As long as the welding process passes, there is no significant difference in use. Galvanized steel pipe: To improve the corrosion resistance of steel pipe, galvanized general steel pipe (clarion). Galvanized steel pipe is divided into two types: hot dip galvanizing and electric dip galvanizing. Oxygen blowing pipe: used as oxygen blowing pipe for steelmaking, generally small diameter welded steel pipe, specifications from 3/8 inch to 2 inch eight. Made of strips of 08, 10, 15, 20 or Q195-Q235. To prevent corrosion, some are aluminized. Wire sleeve: also common carbon steel welded steel tube, used in concrete and various structural distribution projects, commonly used nominal diameter from 13-76mm. Wire sheath tube wall is thin, most of them are coated or galvanized after use, cold bending test is required. Metric welded pipe: welded steel pipe in the form of seamless pipe with outer diameter * wall thickness of mm, welded with tropical and cold belt of ordinary carbon steel, high quality carbon steel or general energy low alloy steel, or welded with tropical and then cold-rolled. Metric welded pipe can be divided into general energy and thin-walled, commonly used as structural parts, such as transmission shaft, or transport fluid, thin-walled for the production of furniture, lamps, etc., to ensure the strength of steel pipe and bending tests. Roller pipe: used for belt conveyor roller electric welding steel pipe, generally made of Q215, Q235A, B and 20 steel, diameter 63.5-219.0mm.
The bending degree and the end face of the pipe should be perpendicular to the center line, and the ellipticity should have certain requirements.Transformer tube: used for manufacturing transformer heat pipes and other heat exchangers. It is made of ordinary carbon steel. Flattening, flaring, bending and hydraulic testing are required. The steel pipe is delivered in fixed size or times size, which requires the bending degree of the steel pipe. Special-shaped pipe: square pipe, rectangular pipe, cap pipe, hollow rubber steel door and window steel pipe welded by common carbon structure steel and 16Mn steel strip, mainly used as agricultural machinery components, steel window doors and so on. Welding thin-walled tube: mainly used for making furniture, toys, lamps and lanterns. In recent years the thin wall pipe that stainless steel belt makes is applied very widely, high-grade furniture, adornment, grille waits. Spiral welded pipe: it is to roll the steel strip of low-carbon carbon structural steel or low alloy structural steel into a blank according to a certain spiral Angle (called forming Angle), and then weld the joint of the pipe to make. It can produce large diameter steel pipe with narrow strip steel. Spiral welded pipe is mainly used for oil and natural gas pipelines, and its specification is expressed by outer diameter * wall thickness. Spiral welded pipe has single side welding and double side welding, the welded pipe should ensure that the hydraulic test, weld tensile strength and cold bending performance to meet the requirements.
