How to test the quality of hot rolled seamless steel pipe? 1. High quality inspection of permeable layer and core. Check whether the strength of the surface and the core meets the technical standards, whether the gradient direction of the intensity conversion from the surface to the interior is effective, and whether the surface strength is consistent; 2. Check…
Read MoreThe outer galvanized and inner plastic coated steel pipe of seamless steel pipe, like the plastic coated steel pipe, takes the steel pipe as the base pipe. The pipe is a steel pipe with internal and external coating. Generally, the inner coating is plastic for anti-corrosion. The outer coating can be about the galvanized layer of plastic according to…
Read MorePipe rolling – the processing of the wall thickness of the capillary is usually called pipe rolling. Pipe rolling is the most important process in the process of steel pipe forming. The main task of this link is to reduce the thick wall capillary to the extent suitable for the finished steel pipe according to the requirements of the…
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 MoreUnder the background of advocating low-carbon, energy conservation and environmental protection, all kinds of transportation machinery are also developing in the direction of lightweight. In this paper, the mature TRIP steel production technology is applied to the production of steel pipe, and the thin-walled TRIP steel seamless pipe with ferrite, bainite, residual austenite and a small amount of martensite…
Read MoreThe mechanical properties of steel are important indicators to ensure the final performance of seamless pipe, which depends on the chemical composition and heat treatment system of the steel. In the seamless pipe standard, according to different use requirements, the tensile properties, hardness and toughness indicators, as well as the high and low temperature properties required by users, are…
Read MoreAlloy seamless pipe is a pearlite heat-resistant alloy structural steel, which has good high-temperature mechanical properties, high plasticity during cold deformation, no tempering brittleness tendency, good machinability and acceptable weldability. It is generally used under high-temperature normalizing and high-temperature tempering; It is mainly used for superheater tubes with working temperature of 570 ~ 585 ℃ in pressure boiler, pipeline…
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.
