ASTM AISI ISO Hot Cold Rolled 201 202 304 316 410 420 430 Round Tube Polished Precision Line Seamless Galvanized/Stainless Steel Pipe Industry for Construction

  Product ParametersStainless steel is an alloy of Iron with a minimum of 10.5% Chromium. Chromium produces a thin layer of oxide on the surface of the steel known as the passive layer. This prevents any further corrosion of the surface. Increasing the amount of Chromium gives an increased resistance to corrosion.Stainless steel also contains varying amounts of Carbon, Silicon and Manganese. Other elements such as Nickel and Molybdenum may be added to impart other useful properties such as enhanced formability and increased corrosion resistance.Product NameStainless steel tubes/pipesStandardASTM A213, ASTM A312, ASTM A789, ASTM A790Material Grade201/202/304/316/S31803/S32750 Outer Diameter0.1mm-219.1mmThickness0.05mm-20mmLength≤12000mm or as per customer requestTolerancea) Outer Diameter: +/-0.2mmb) Thickness: +/- 10% OR as customer requestc) Length: +/- 10mmSurfaceSatin / Hairline: 180#, 320#Polish: 400#, 600#, 800# or Mirro surfaceApplicationDecoration (Processed into raillings, handrails, doors and Windows)medical, industry, etcpackingPlastic bag/woven packingProduct DisplaySurfaceDescriptionPlug DrawThe surface roughness is improved by precise cold drawing of the plug, which can improve the surface structureMechanically PolishedSurface roughness enhanced by precision grindingPickled & PassivatedPickled or passivated to remove particles remaining on the surfaceBuffed Polisheduse polishing paste to improve surface brightness, often used in decoration industryBright AnnealingUse high temperature heat treatment in a vacuum state to form a passivation film on the surfaceAnodical CleaningOn the basis of BA, add a mild electrolytic polishing process and thicken the passivation filmElectro-PolishedThrough electrochemical polishing, the surface has a closed and thick chromium oxide filmProduct ApplicationIf you have any needs, Please click this to contact us !Company ProfileBAOTOU STEEL (SHANDONG) GROUP Co., Ltd is a multi-specialty supplier who was founded in 2021 year, registered Capital of 66.88 Million Yuan. It is Specialized in steel plate, steel pipe, steel coil, GI steel, PPGI&PPGL, Steel Profile, Alloy Steel Series, Aluminium&Copper series product etc.BAOTOU STEEL SHANDONG GROUP is a leading steel structure company in China. At present, We have passed ISO, CE and other system certification and successfully passed SGS, TUV, BV and other samples testing, PSI, PMI. 3.1.3.2 Testing etc. Our products has been exported to more than 100 countries almost the world including Asia Market, European Market, South America Market, Africa Market, Oceania Market, Middle East etc. And have been widely recognized!BAOTOU STEEL SHANDONG GROUP is located in Jinan city of Shandong Province, With Convenient transportation, close to Qingdao&Tianjin Sea Port. The Cooperative factory covers an area of more than 300Mu, has more than 500 employees including export market department, Domestic Market department, R&D department, Processing center, After-sales service center etc. It has several production lines including picking plate production line, cold rolled sheet line, hot rolled sheet line, zinc sheet line, PPGI production line etc.We adhere to the quality of basis survival, with competitive price advance, stable upstream and downstream industry chain, fast delivery and transportation system, Responsible after-sale service. We warmly welcome guests from home and abroad to come to our company for negotiating business. Welcome to China! Welcome to Baotou steel Shandong group!Our Advantages  Packaging & Shipping FAQQ1:Why choose us? A1: We are a multi-specialty supplier which has deeply engaged in steelmarket more than 15 years , our major product is including steel plate ,steel coil ,steel pipe ,GI steel ,PPGI,PPGL ,steel profile,and aluminum&copper alloy series etc Q2. How do you control quality ?A2: Our factory has special QA/QC department , each order will be inspection before delivery ,also we will issue the original MTC to customer .Third Party Inspection Included SGS,TUV,BV  is available.Q3. What is your payment terms ?A3:Normally our payment terms is 30%T/T in advance , balance paymentwill be paid before delivery , but we also can accept L/C at sight , Payment again copy of bill of lading etc ,western union MoneyGram, payment methods can be negotiated and customized with customersQ4. What is your trade terms ?A4: EXW ,FOB,CFR,CIF ,CIP ,DAP ,DDP etc Q5. Can you provide sample ?A5: of course , if it is normal size and we have stock in warehouse , we will supply sample free of charge , but the courier freight will be borne by your company Q6: Can i visit your factory ?A6: For sure , warmly welcome to visit our factory at your convenience, We will have special staff to pick you up at the airport ,rail station ,also will drive you to visit our factory . we will provide you with necessary assistance with accommodation .Q7: What product information do i need to provide for inquiry ?A7:Normally ,you'd better send us the material,gr