The chemical composition of cold-rolled ribbed strip is the same as that of hot-rolled smooth round strip. It is rolled at room temperature with hot-rolled smooth disc strip， which is called cold rolling. Due to the reorganization of steel crystal structure by cold rolling process， high tensile strength (LL， ll， ll， etc.) is obtained which has poor ductility and cannot be welded. If there are double-sided ribs and three-sided ribs，Products Show the specification allows LL to be used as stirrup. The design value of strength is limited to n / mm?.
7Why are galvanized pipes so good?
qGuihuBecause all parts of I-beam are arranged at right angles，Sanhe254SMO alloy pipeHow to improve production efficiency I-beam has the advantages of strong bending resistance， simple construction， cost saving and light structural weight in all directions， and has been widely used. The inner and outer sides of the flange of the I-beam are parallel or close to parallel， and the end of the flange is at a right angle， so it is named parallel flange I-beam. The web thickness of I-beam is smaller than that of ordinary I-beam with the same height of web， and the flange width is larger than that of ordinary I-beam with the same height of web， so it is also named wide edge I-beam.
General carbon steel wire sleeve (GB / t- is a steel pipe used to protect wires in electrical installation projects such as industrial and civil buildings and installation of machinery and equipment.
BHenifraIn the production process， the stainless glittering pipe is affected by the outside and product surface. Due to galvanizing，Products Show the corrosion protection is not corroded. This is the thickness of zinc， and the quality and strength of its coating depend on longevity.
ZjCheck whether the manufacturer&#;s qualification， business license， organization code certificate， tax registration certificate， production and operation license and other qualification materials are complete. Look at the case investigate the supplier&#;s performance and the projects served in the past. Whether there is a self built logistics fleet or not， and more importantly choosing a service provider with a self built logistics fleet can reduce the transportation cost， ensure the timeliness of delivery. After sales service， whether there is a sound and reliable after-sales service guarantee system， and timely solve quality problems in arrival acceptance and subsequent use. Check whether the quality assurance materials such as product quality certificate，Products Show material specification and warranty are complete. Check the appearance of the welded pipe， the surface is smooth and flat the weld is dense，Sanhe254SMO alloy pipeHow to improve production efficiency without burr， oil stain， corrosion， extrusion deformation and flat cross section. Use a micrometer to check whether the outer diameter and wall thickness of the welded pipe meet the requirements， and the standard wall thickness deviation shall not exceed % - %. NDT shall be carried out for welded pipe with flaw detector. Conduct bending tensile strength test according to the requirements， bend the welded pipe for degrees， and there is no crack at the bend.
East West derusting: if the galvanized pipe surface is rusty， the manufacturer will choose East West derusting and polish it with a steel wire brush
Seismic and cracking performance the longitudinal and transverse bars of the welded reinforcement mesh form a network structure，Reinforcement, galvanized pipe, seamless pipe, welded pipe, alloy pipe, I-beam-Shandong Kaiwen metal material Co., Ltd so it has good bonding and anchorage with the concrete， which obviously shows the seismic cracking performance of the reinforced concrete structure. According to the actual test， the welded reinforcement mesh laid on the road can reduce the occurrence of cracks than the manual binding mesh. It greatly reduces the unnecessary cost generated manually in the construction and shortens the construction period. The use of reinforcement mesh is simple and convenient， and the reinforcement mesh is convenient for transportation.
nDifference and application description between H-beam and I-beam
ADuring the construction of building wall， cracks and hollows show that the construction materials are unqualified， the construction at the matrix junction is not in place， and the construction personnel are poor. The external wall plastering adopts electric welding steel wire mesh， especially in some construction sites. This product has the advantage of durability when used. It also has the characteristics of surface gloss， uniform zinc layer and no missing plating. Moreover， the cost of hot-dip galvanizing for rust prevention is lower than that of other paint coatings. In addition， strong adhesion， breaking the clean Legion and strong corrosion resistance. Even if it is used in some places where the environment is not good， its service life is also very long， and it also has the characteristics of corrosion resistance. The standard anti rust thickness of hot-dip galvanizing can be maintained for more than years without repair. This is used in some suburban environments. However， in urban or offshore areas， standard urban or offshore areas can be maintained for years without repair. The products produced by our company must meet these requirements. Friends who need to order can call us directly.
rL Seamless tube has high elasticity， can be reused on mechanical equipment， no memory， no deformation， anti-static.
There are several ways to clean galvanized pipes
However， compared with plastics， these pipes， like other metals， remain stable and will not be affected by high temperature.
Inspection requirementslAre there many welded types of mesh produced? According to the welding type and overall improvement， the difference between the reinforcement mesh and the welded mesh is not particularly large. It is still due to the scattered quality of the southern city. From the perspective of development to the longitudinal and transverse interleaving devices of the reinforcement mesh， the bound or welded mesh has better application quality.
WPerformance parameters and application scope of I-beam
Operating conditions
eGuihuHigh percentage of metal strength.
gSSeamless pipe
Classification by production method