so it has excellent rolling fatigue characteristics and corrosion resistance. Therefore, this kind of steel has been widely used as the material of rolling mill flap ball screw in rolling mill manufacturers. In addition to the excellent properties of cronidur steel, the modified LNs steel of case hardening steel also has the surface compressive stress characteristics obtained by heat treatment, and its application range is expected to be further expanded.Greatly reduce the environmental pollution caused by abrasion,ChernikovHow much is the alloy tube, damage and blanking, and increase the labor cost of material cleaningChernikov, Spiral seam high-frequency welded steel pipe (sy- for pressure fluid transportation is a spiral seam high-frequency welded steel pipe used for pressure fluid transportation, which takes hot-rolled steel strip as pipe blank, often warm spiral forming and high-frequency lap welding method. The steel pipe has strong pressure bearing capacity and good plasticity, which is convenient for welding and processing; After various strict and scientific inspections and tests, the diameter of steel pipe is large, the transportation efficiency is high, and the investment in laying pipeline can be saved. It is mainly used for laying pipelines for transporting oil natural gas, etc.Application characteristics of I-beamAbengourou,Due to the relatively high and narrow section size of ordinary I-beam and light I-beam, the moment of inertia of the two main sleeves of the section is quite different, which makes it very limited in the scope of application. The use of I-beam shall be selected according to the requirements of design drawings.Using alloy pipe to produce ring parts can improve the utilization rate of raw materials, and save raw materials and production and processing construction time, such as roller bearing ring throwing Nowadays seamless steel pipe has been widely used to produce hydraulic jack sleeve.The specification of pass design I-beam is expressed in cm of waist width. For example, the waist width of No. I-beam is. The types of I-beam include hot-rolled ordinary I-beam, light I-beam and wide parallel leg I-beam (H-beam). The waist width of hot-rolled ordinary I-beam in China is ~, expressed as No. ~ No., and the inclination of inner wall of leg is : The pass system of rolled I-beam includes direct pass system, cross pass system and mixed pass system. In addition, I-beam can also adopt special rolling method.

I-beam is a kind of economical section steel with better section mechanical properties. Its characteristics are as follows:Galvanized; hot-rolling;What is the purpose of flat steelInspection environment,ChernikovHow many inches is the 219 seamless pipe, Miscellaneous scabStages needing attention in the production and manufacture of alloy tubesThe import and export order of I-beam is generally based on the specifications required in use after determining the corresponding carbon structure steel (or low alloy steel) steel grade. Except for the specification number, I-beam has no specific composition and performance series.

I-beam has the dual properties of high hardness and toughness materials. Compared with other engineering wear-resistant materials in China, such as various alloy steel plates, cast stones, rubber, polyurethane, etc., it has irreplaceable comprehensive excellent properties.Where is good,Plan scheme : high carbon steel with carbon content exceeding .% and alloy pipe with chromium content not less than % Seamless pipe is resistant to corrosion, acid, alkali, salt and atmospheric environment, high temperature impact and fatigue, does not need regular maintenance, and the effective life is more than years; Hot stamping. Fix the plan product workpiece or preformed vacancy on the rotating journal, with the wheel working pressure vacancy,ChernikovPrice list of I-shaped steel, radial wheel. After one or several solutions, there can also be a variety of methods for the whole process of hollow thick wall rotating body products. Products manufactured by high-precision processing method have excellent physical properties, specification scope, mold shell and software requirements, which are very simple, very easy to be replaced, and relatively low product cost. The processing time is not long enough, the processing capacity is not high the total length of processing pipeline is limited, and the size of machinery and equipment is generally short.Chernikov,Generally, the process of pickling and passivation will be carried out for alloy pipes, but the alloy pipes after pickling and passivation are very easy to rust. Therefore, the way to find a solution to wiredrawing corrosion is 'grinding and polishing'. Due to grinding and polishing, there is no harm to carry out hot galvanizing in the middle and later stage.The system is mainly composed of control box, finishing roller, pre leveling unit, finishing unit and straightening unit.The shape of small longitudinal crack on the surface of alloy pipe is less than mm The overall width is less than mm The depth is lower than .mm.