In order to prevent water from serious pollution during storage and transportation， the water industry now generally uses stainless steel pipes to store and transport water. Because stainless steel pipes have anti rust， high temperature and high pressure resistance and good sanitary performance， stainless steel pipes are slowly used in the industrial field!.
uAll steel with openings at both ends and hollow sections， and with a large ratio of length to section perimeter， can be called steel pipe. When the ratio of length to section perimeter is small，Stainless steel coil it can be called pipe section or tubular fittings，BA stainless steel pipeOf processing and sales output which belong to the category of pipe products.
The stainless steel strip is supplied in coils， also known as strip steel. It is divided into hot rolling and cold rolling， as well as ordinary steel strip and high-quality steel strip. There are many kinds of stainless steel belts! Wide use! There are: stainless steel belt， stainless steel belt， stainless steel belt， stainless steel belt， stainless steel belt， stainless steel belt， stainless steel belt，Stainless steel coil J stainless steel belt， S stainless steel belt， L stainless steel belt， L stainless steel belt， S stainless steel belt， stainless steel iron belt， etc! Thickness: .mm-mm， width: mm-mm， can be customized without standard!
FCampbellMoreover， the cost of packaging requires labor costs，Stainless steel coil the sum of which exceeds the weight of a single bag.
EhAfter hot rolling， it is subject to heat treatment and pickling treatment.
The inventory of stainless steel pipes may be an important factor in market conditions. This is because at this stage，BA stainless steel pipeOf processing and sales output steel inventory has become an important index to investigate and judge the situation of stainless steel pipeline shopping malls and has become a wind vane to judge the future market trend. What was the stock of stainless steel tubes at that time? It directly affects the air in the mall， and then distributes the business behavior of participants in the mall. The agitation in the futures market is more direct. If there is an abnormal change in inventory， whether it increases or decreases， it will become a speculative type of mall participants.
The stainless steel pipe installed on the pipeline support can be corroded by ppm chloride ion and ppm residual chlorine in an aerobic environment. For carbon steel structural supports， and the external insulation cotton shall be wrapped for anti-corrosion treatment. Remember， never use glue and other materials that contain chloride ions， halogens and other corrosive effects on stainless steel pipes.
pStainless steel pipe factory stainless steel products are widely used in hardware products， furniture，tisco stainless steel sheet,taigang stainless steel sheet,stainless steel sheet,stainless steel coil,stainless steel strip,stainless steel tube-TISCO Stainless Steel Co.,Ltd mechanical structure， mechanical accessories， precision medical instruments， fluid transmission pipelines， such as furniture， machinery， medical oil， natural gas， water， gas， steam and other industries.
GCold rolled oriented silicon steel strip (sheet) represents: times of DQ + iron loss value (at the frequency of Hz， the waveform is sinusoidal， G is added after the iron loss value to represent high magnetic induction. For example， dq represents cold rolled oriented silicon steel strip (sheet) with iron loss value of and thickness of .mm. Now the new model is q.
ZPursuit of excellence SPCDSPCD—& mdash; Cold rolled carbon steel sheet and strip for stamping， equivalent to China Al () high quality carbon structural steel.
hTThe specification and appearance quality shall comply with the provisions of gb- stainless steel seamless steel pipe. The steel pipe is usually ~ m long (indefinite length) hot rolled steel pipe， and the hot extruded steel pipe is equal to or greater than m. The wall thickness of cold drawn (rolled) steel pipe is . ~ mm， ~ m; the wall thickness is greater than mm， ~ m.
Manufacturing process of stainless steel pipe hot rolled (extruded seamless steel pipe): round tube blank & rarr; Heating → Perforation & rarr; Three roll cross rolling， continuous rolling or extrusion → Off pipe & rarr; Sizing (or reducing) → Cooling → Straightening & rarr; Hydrostatic test (or flaw detection) → Mark & rarr; The raw material for warehousing and rolling seamless pipe is round pipe blank. The round pipe blank shall be cut and processed by the cutter， and the blank with a growth of about m shall be sent to the furnace for heating through the conveyor belt. The billet is sent to the furnace for heating at a temperature of about degrees Celsius. The fuel is hydrogen or acetylene. The temperature in the furnace is the key problem. After the round tube billet is discharged from the furnace， it should be pierced through the pressure piercer. Generally， the more common piercer is cone roll piercer. This piercer has high production efficiency and good product quality. It specializes in selling stainless steel plate， stainless steel coil， stainless steel belt and stainless steel pipe， with high pressure resistance grade， good waterproof performance， strong overload capacity， corrosion resistance， radiation protection， long service life， and can wear a variety of steel grades. After perforation， continuous rolling or extrusion. After extrusion， take off the pipe for sizing. The sizing machine rotates into the steel embryo at high speed through the conical drill to form a steel pipe. The inner diameter of the steel pipe is determined by the outer diameter length of the sizing machine bit. After sizing， the steel pipe enters the cooling tower and is cooled by water spray. After cooling， the steel pipe will be straightened. After straightening the steel pipe is sent to the metal flaw detector (or hydrostatic test) by the conveyor belt for internal flaw detection. If there are cracks， bubbles and other problems inside the steel pipe， they will be detected. Steel pipes should be strictly selected by hand after quality inspection. After the steel pipe is inspected， the number， specification， production batch number， etc. shall be sprayed with paint. And hoisted into the warehouse by crane.
after deep drawing， small black spots and RI high imitation dging will also appear on the surface of the area with large deformation， which will affect the BQ attribute.
technological innovationjRemarks: to ensure the nickel content of stainless steel strip and the mechanical properties of stainless steel strip， material certificate (Baogang material)， Japan Nippon Steel Material Certificate (Nippon Steel material) SGS report， etc. can be provided.
GThe numbering rules adopt element symbols; Pinyin open hearth steel: p; Boiling steel: F; Killed steel: B; Class a steel: a; T: special GCr: ball.
xL stainless steel pipe is a kind of hollow long round steel， which is mainly used for industrial transmission pipelines and mechanical structural components such as petroleum， chemical industry， medical treatment food， machinery and instruments， etc. In addition， when the bending and torsional strength are the same the weight is light， so it is also widely used in all kinds of manufacturing mechanical parts and engineering structures.
lD(II) low steel prices. The overall performance of the domestic steel market was sluggish from to June . With the substantial release of crude steel production capacity， the market supply and demand fell into an imbalance， and the steel price entered a downward channel， which has been weak for more than months. As of June ， ， the steel price index had dropped to . points， lower than the initial points. The prices of the eight steel varieties mainly counted by the iron and Steel Industry Association decreased to varying degrees， with an average decrease of %. In terms of varieties， the prices of construction wire rod and rebar， which account for a large proportion of Chinas steel output， fell by % and % respectively， and the prices of medium and heavy plate and hot rolled coil fell by % and % respectively.
The allowable depth of stainless steel straight track is also required. For hot rolled and hot extruded steel pipes， stainless steel pipes with diameter less than or equal to mm and not greater than % of the nominal wall thickness， the large depth is less than or equal to .mm， and the cold drawn (rolled) stainless steel pipes are not greater than % of the nominal wall thickness， and the large depth is less than or equal to .mm.