So why is the alloy pipe easy to rust after being pickled and passivated by the software?The utility model has the advantages that the axial force of the roll is small, and the working slope is not required,Komitanchilo35CrMo thick wall seamless pipe,Komitanchilo,KomitanchiloWelded pipe manufacturer, Material requirementsGB No. I-beam is in height, in leg width and in waist thickness.Kysucke Nove Mesto,Determined by the shape, the section modulus, moment of inertia and corresponding strength of I-beam are obviously better than those of ordinary I-beam with the same single weight. When used in metal structures with different requirements, it shows its superior performance in bearing bending moment, pressure load and eccentric load. Compared with ordinary I-beam, it can greatly improve the bearing capacity and save metal by % ~ %.Pass designThe finished product has smooth surface, low friction coefficient, flatness error + / - mm / m length, wear resistance and maximum temperature of ℃

Plan scheme : high carbon steel with carbon content exceeding .% and alloy pipe with chromium content not less than %From the situation of chiseling on site, which greatly exceeds the specification, and then the crack resistance of the reinforcement mesh can be reduced. Because of the increasing temperature the effect of thermal expansion and cold shrinkage and the characteristics of concrete, the cracking of surface layer is significant.Its heat sealing effect is remarkable. It can be directly buried immediately, which can not only save resources, but also reduce consumption, not occupy the natural environment, but also purify the environment. The transportation of gas can meet the requirements of long-distance transportation, prevent actual operation and maintenance meet the requirements of thermal insulation and cold protection, reduce heating equipment, unique and convenient installation, and reduce the construction cycle time of the project. On the whole, it is more convenient to use. It can also be used for the transportation of floor heating and hot springs.query, Hot hole breaking cold rolling method. This method is dominated by expansion and expands vertical sliding and skew rolling. The former one is mainly cold rolling by relatively limited mandrel mill, cold rolling by few station mandrel mill, cold rolling by three high limited mandrel mill and cold rolling by fluctuating mandrel mill. In this way, the advantages of high efficiency,KomitanchiloHow much is 50 welded pipe per meter, low metal material consumption, small types, multi specifications and high precision. Therefore, it is widely usedIntroduction to product knowledge of alloy pipe:I-beam can be divided into four types according to shape: cold-formed equal edge I-beam, cold-formed unequal edge I-beam, cold-formed inner crimping I-beam and cold-formed outer crimping I-beam.

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 axes 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.The cost is reasonable The small length of repair welding is mm; The raw material shall not exceed mm after grinding by welding edge. For the surface mesh of the height difference plate, when the height difference is ≤ mm, the surface mesh can be bent and installed; when the height difference plate is more than mm, the surface mesh should be disconnected at the place with height difference and put into the beam respectively. The anchorage length of the reinforcement is required for the reinforcement to extend into the beam.The general alloy pipe with improved performance is variable and has high application value. The alloy pipe contains more Cr and is heat resistant Low temperature resistance Corrosion resistance. There is no aluminum alloy in plain carbon seamless steel pipe, not very little aluminum alloy, and the alloy pipe is used in crude oil Aerospace Chemical plant Power engineering heating furnace. Because the physical properties of alloy tubes are easy to change and adjust.Komitanchilo,When it is used for ground heating and hot spring transportation, it can meet the requirements of refrigeration and achieve the practical effect of less damage. It is applicable to water conservancy engineering, mining and other industries to meet the provisions of cold, cold and corrosion prevention. In addition, the chemical raw material transmission pipeline has a wide indoor space.→ under the same section load, the weight of hot-rolled H steel structure is reduced by % - % compared with the traditional structure.According to the theory of steel structure, the I-beam flange should be stressed, that is, the I-beam should be standing rather than lying down.