1. Pipe for pipeline. Such as seamless pipes for water, gas and steam pipelines, oil transmission pipes and pipes for oil and gas trunk lines. Faucet with pipe for agricultural irrigation and pipe for sprinkler irrigation, etc. 2. Pipes for thermal equipment. Such as boiling water pipes and superheated steam pipes for general boilers, superheated pipes, large smoke pipes,…
Read MoreWhen the carbon seamless steel pipe is cold drawn, there are defects such as cracks in the hot rolled tube blank. For example, after the high-precision cold-drawn tube is made into an oil cylinder, the fracture that occurs during use has almost no plastic deformation, and is generally brittle fracture. Brittle fracture is caused by a variety of reasons….
Read More1. Large diameter thick wall seamless steel pipe is used for the manufacture of large shaft and roller assemblies, oil cylinder and hydraulic oil cylinder, mechanical spare parts, mechanical structure, large airports, bridges, wharfs and building structures 2. In our daily life, large-diameter seamless steel pipe is a very common channel, which is mainly used in sewers and water…
Read More1. The thickness of capillary wall shall be uniform and there shall be few internal and external surface defects; External surface polishing and internal hole defect cleaning equipment shall be equipped. 2. Compared with the ordinary cold drawn steel pipe, the cold drawn precision seamless pipe production increases the pickling and re inspection process of hot-rolled capillary, which is…
Read MoreThe biggest difference between seamless steel pipe and other long strips is that there is no joint around it, and the section of steel pipe is hollow. Due to different cross-sectional shapes, it is often classified as circular steel pipe and heterosexual steel pipe. Of course, circular steel pipe is more common in terms of actual use efficiency. Wonder…
Read MoreThere are many kinds of quality inspection methods for large-diameter seamless pipes, and physical methods are also the most common inspection methods. Physical inspection is a method of using some physical changes to carry out measurement or inspection. The inspection of the internal defects of raw materials or large-diameter seamless steel pipes is generally carried out by non-destructive testing….
Read MoreThe basic manufacturing process of thick wall P22 seamless alloy pipe is: melting, blank making, extrusion and annealing heat treatment. (1) Smelting P91 steel has high alloy content. How to complete the alloying of steel in a short time is the key of smelting process. P22 seamless alloy pipe is smelted by 50t power electric arc furnace + 5T…
Read MoreDefinition of carbon steel seamless steel pipe: carbon steel seamless steel pipe is a kind of long steel with hollow section, which is widely used as pipeline for conveying fluid, such as pipeline for conveying water, natural gas, oil, gas and some solid materials. Compared with solid steel such as round steel, steel pipe has the same flexural and…
Read MoreXINYUE STEEL GROUP set up several production bases in Tianjin & Hebei Province, manufacturing ERW Steel Pipe, SSAW Steel Pipe, LSAW Steel Pipe, Seamless Steel Pipe, Scaffolding system and couplers, RHS, SHS, etc.