It bears high internal working pressure.
2Check whether the manufacturers 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 suppliers performance and the projects served in the past. Whether there is a self built logistics fleet or not，Products Show choosing a service provider with a self built logistics fleet can reduce the transportation cost，RiyobinalCombien coûte I - beam Steel par kilogrammeUn développement diversifié améliore la compétitivité du marché and more importantly， 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， material specification and warranty are complete. Check the appearance of the welded pipe， the surface is smooth and flat， the weld is dense， without burr， oil stain， corrosion，Products Show 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.
gQuinn H-section steel is an economic section steel with better mechanical properties than I-section steel. It is named because its section shape is the same as the English letter "H". The flange of hot rolled H-beam is wider than that of I-beam， with large lateral stiffness and strong bending resistance. Under the same specification， H-beam is lighter than I-beam.
Simple section steel pipe -- circular steel pipe， square steel pipe， oval steel pipe， triangular steel pipe， hexagonal steel pipe，Products Show rhombic steel pipe， octagonal steel pipe，RiyobinalCombien coûte I - beam Steel par kilogrammeUn développement diversifié améliore la compétitivité du marché semi-circular steel pipe， weaken and eliminate the adverse effects of sulfur， and improve the hardenability of steel. High alloy steel (high manganese steel) with high manganese content has good wear resistance and other physical properties
General welded pipe: General welded pipe is used to transport low-pressure fluid. It is made of qa， qa and QA steel. It can also be made of other mild steel that is easy to weld. Water pressure， zigzag， flattening and other tests shall be carried out for steel pipes， and there are certain requirements for surface quality. Generally， the delivery length is -m，Reinforcement, galvanized pipe, seamless pipe, welded pipe, alloy pipe, I-beam-Shandong Kaiwen metal material Co., Ltd and fixed length (or double length) delivery is often required. The standard of welded pipe is expressed in nominal diameter (mm or inch). The nominal diameter is different from the actual. Welded pipe can be divided into general steel pipe and thickened steel pipe according to the specified wall thickness， and steel pipe can be divided into threaded and non threaded according to the way of pipe end.
It is also divided into general welded pipe， galvanized welded pipe oxygen blowing welded pipe， wire sleeve， metric welded pipe， idler pipe， deep well pump pipe， automobile pipe， transformer pipe， electric welding thin-wall pipe， electric welding special-shaped pipe， scaffold pipe and spiral welded pipe.
eBecause all parts of I-beam are arranged at right angles， 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.
UDuring the construction of building wall， 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， which can prevent cracking and strengthen the wall.
TVariable costThe pipeline shall be positioned according to the drawing design， and the pipeline support shall be prefabricated according to the site conditions. Hang the wire from the th floor down and fix the support.
yV Spiral seam submerged arc welded steel pipe for general low-pressure fluid transportation (SY / t- is a submerged arc welded steel pipe for general low-pressure fluid transportation such as water gas， which is made of hot-rolled steel strip coil as pipe blank， often warm spiral forming and double-sided active submerged arc welding or single-sided welding.
Pickling: if the material cannot be removed after cleaning， pickling will be selected. Pickling of galvanized pipe is divided into chemical and electrolytic. How to prevent white rust of galvanized seamless steel pipe? It has a certain anti-corrosion effect on the pipeline.
The development of steel bar mesh is in line with the development of energy-saving economy
PricecStraight seam welding is adopted for larger diameter welded pipe， and spiral welding is mostly adopted for large diameter welded pipe; According to the top appearance of seamless steel pipe it is divided into annular welded pipe and special-shaped (square， pitch， etc.); according to different materials and main purposes， it is divided into mining anti liquid transportation welded steel pipe， hot-dip galvanized welded steel pipe for bottom pressure liquid transportation， continuous conveyor idler electric welded steel pipe， etc. it is arranged from small to large according to diameter * wall thickness according to the specification， model and dimension table in the current standard.
SH-beam is a widely used profile in steel structure buildings. It is different from I-beam. The first is the flange， and the second is that the inner surface of the flange has no inclination， and the upper and lower surfaces are parallel. The section characteristics of H-beam are obviously better than those of traditional I-beam， channel steel and angle steel.
Galvanized pipe is actually galvanized pipe. This is mainly because it increases the corrosion resistance of the steel pipe， so it is evenly coated with a layer of zinc. It can prevent the erosion of other chemicals such as and steam， and protect the steel strip. It is non-destructive and effectively prolongs its service life. Generally， the steel strip purchased is rolled into a large number by the galvanized pipe manufacturer， so pay attention to it during storage.
nQuinn In our daily life and work， we can often see a lot of steel products. At the same time， among many steel products， in the field of mechanical equipment processing we often see the application of galvanized pipe is more frequent. Lets discuss the application scope of this kind of pipe today.
tQ 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
The finished products shall be placed away from the processing site and stacked in the designated finished product warehouse. Ventilation and other facilities shall be provided in the storage environment.