Judged as failing.Performance parameters and application scope of I-beamLincoln,Classification by useI-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, and its section shape is groove shape. China&#;s imports of I-beams are greater than its exports. The main producing areas are Tangshan Iron and steel, Baotou Iron and steel, Shangang, huangte, Maanshan Iron and steel, Xuanhua Iron and steel, Japan iron and steel, etc.Rengasdengklok,Defects of alloy pipe and solutions:I-beam, whether ordinary or light, can only be directly used for bending members or lattice members on its Web because of its large and narrow section size and large moment of inertia difference between the two main axes on the section. It is not suitable for axial compression members and flexural members perpendicular to the web plane, so its application range is very limited. I-beams are widely used in buildings and other metal structures.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.

Plan scheme : high carbon steel with carbon content exceeding .% and alloy pipe with chromium content not less than %Identification method of galvanized pipeWhether I-section steel is ordinary or light,LincolnInconel 600 alloy pipe, because the section size is relatively high and narrow, the moment of inertia of the two main axes of the section is quite different, so it can only be directly used for members bent in the plane of their web or form lattice stressed members.resources,Defects of alloy pipe and solutions:a. In the forming process, the thick steel plate has uniform deformation,LincolnHow much is 304 seamless pipe per ton, small internal stress and no scratch on the surface. The alloy pipe produced and processed has higher coordination ability in the scope of size, specification and model of diameter and wall thickness, especially in the production and manufacturing of steel structure design grade thick wall pipe, and can meet a large number of customer regulations on the specification and model of alloy pipe.Application characteristics of I-beam

c. quality inspection is carried out for alloy pipes so that the whole process of steel pipe processing is under reasonable inspection and supervision, and the product quality is reasonably guaranteed.Promotion,Alloy pipe can be divided into round steel pipe and special-shaped steel according to different cross-sectional area. Because the circular area is large on the premise of the same side length a large amount of liquid can be transported with an annular tube. In addition,LincolnQ345 straight seam welded pipe, when the circular cross section bears the internal or external axial working pressure, the bearing force is more symmetrical. Therefore, most seamless steel pipes are round steel pipes.Classification by production methodThe specification of I-beam is expressed in cm of waist width. For example, the waist width of No. I-beam is cm. 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 ~ mm, expressed as No. ~ No., and the inclination of inner side wall of leg is : The pass system of rolled I-beam includes direct rolling pass system, cross rolling pass system and mixed pass system. In addition, I-beam can also adopt special rolling method.Lincoln,→ the two surfaces of the flange are parallel to each other, making it easy to connect, process and install.Nitriding: also known as nitriding, it is the process of penetrating nitrogen atoms into the surface layer of steel. At present