→ compared with general section steel, it has the advantages of low cost, high precision and small residual stress. It does not need expensive welding materials and weld detection, dead end welding of strip steel and circumferential seam. For the spiral welding of steel for the transportation of flammable general liquids, yibai%sx ray or ultrasonic testing shall be carried out. For the spiral welding of alloy pipes for the transportation of water,Peshtosdorf18 I-beam manufacturer, wastewater, gas, heating steam and other general liquids, X-ray or ultrasonic testing sampling inspection (%) shall be carried out.Peshtosdorf,What are the quality protection measures for galvanized pipe during weldingMixed Scabs are distributed periodically, and the situation after casting and rolling is significant through edge flame peeling crack inspection or billet scratch flame removal.Alta,I-beam is a long strip steel with groove section, which belongs to carbon structural steel for construction and machinery. It is a section steel with complex section, Baotou Iron and steel, Shangang, huangte, Maanshan Iron and steel, Xuanhua Iron and steel,PeshtosdorfWhich reinforcement manufacturer is 4egmh, Japan iron and steel, etc.So why is the alloy pipe easy to rust after being pickled and passivated by the software?The side length of I-beam is small and the height is large, so it can only bear the force in one direction.

Heating surface pipes, economizers, superheaters, reheaters, pipes for petrochemical industry,Application characteristics of I-beam:I-beam is widely used in buildings or other metal structures.Dry processing technology: after passivation treatment, parts shall be dried with air compression or hot gas, or drying treatment or air drying can be selected.

b. The professional two-sided arc welding processing technology can complete the electric welding at a good position, which is not easy to have the disadvantages of staggered joint, welding deviation and incomplete penetration, and it is very easy to manipulate the welding quality.wholesaler,H-section steelThis phenomenon is affected by cooling rate material composition and heat treatment process. The faster the cooling rate, the greater the plastic deformation non-uniformity and residual stress caused by thermal stress during cooling.Defects of alloy pipe and solutions:Peshtosdorf the higher the carbon content and alloy composition,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.Performance parameters and application scope of I-beamBecause the section size of ordinary I-beam and light I-beam is relatively large and narrow, the moment of inertia of the two main shafts on the section is quite different, which limits its application range. I-beam shall be selected according to the requirements of design drawings. In the structural design, the use of I-beam should be reasonably selected according to the mechanical properties, chemical properties, weldability and structural size of I-beam.