Stainless steel can use, chemical composition and microstructure to the general classification. In the class of austenitic steel of 18% chromium and 8% nickel as a basic component, an amount of variation of the different elements, while the development of various applications of steel. In chemical composition: (1) CR series, ferrite series, martensite series: (2) CR-NI series austenitic series, abnormal series, folding series with microstructure hardening classification: (1 ) austenitic stainless steel (2) ferritic stainless steel: (3) martensitic stainless steel (4) duplex stainless steel (5) precipitation hardening stainless steel with a thickness tolerance: Generally different stainless steel products, which requires material thickness tolerance also different, like second-class cutlery and insulation Cup thickness tolerance is generally higher, -3% to 5%, while a thickness tolerance tableware general requirements -5%, -10% steel such requests, hotels with a freezer timber thickness tolerance requirements for 8%, dealers on the thickness tolerance requirements generally between 4% to 6%. At the same time export products of different raw materials will lead to customer requirements thickness tolerance. Generally higher exports thickness tolerance requirements of customers, while domestic enterprises thickness tolerance requirements are relatively low (mostly because of cost considerations), some customers even require 15%. (4) Welding: different requirements Usage of the welding performance is also different. A tableware welding performance in general is not required, even including some pot enterprises. But most products require materials welding properties, such as second-class cutlery, mug, steel pipes, water heaters, drinking fountains. (5) corrosion resistance: the vast majority of stainless steel products require good corrosion resistance, like a second class tableware, kitchen utensils, water heaters, drinking fountains, and some foreign businessmen to products also make corrosion test: NACL water heating to a boil, pour the solution after a period of time, washing and drying, said the weight loss to determine the extent of corrosion (Note: When polishing products, because of emery cloth or sandpaper containing Fe component, can cause the surface rust test) ( 6) polished performance (BQ property): the current production of stainless steel products in general have been polishing this process, only a few products such as food, drinking fountains interior, etc. do not need polishing. Therefore, the performance of which requires a good polishing materials. Factors affecting polishing performance are mainly the following points: ① raw materials surface defects. Such as scratches, pitting, excessive pickling. ② raw material problem. Hardness is too low, it is not easy to throw light (BQ bad) is polished, and the hardness is too low, in the deep stretch prone to orange peel surface, thus affecting BQ sexual. BQ high hardness relatively good. ③ after deep drawing of products, areas of extreme deformation of the surface will be a small black dot and RIDGING, thus affecting BQ sexual. Foshan 荣兴源 Stainless Steel Co. (15899554098 Mr Chan) is located in Foshan City, Guangdong Province, the factory covers an area of ??over 20,000 square meters, production, research and development and sales of stainless steel professional production companies. Our use of 316L, 316,304,301,202,201,409,430 other materials production, the main products: stainless steel products, pipes / industrial pipes / food hygiene tube / mechanical structure tube / Precision Pipe / Pipes / Special specifications decorative tube and common decorative tube / chemical corrosion of stainless steel pipe / stainless steel pipe and other metal furniture; a, mechanical structure with stainless steel tubing and products quality: SUS304,316,316L, 201,202,409 and so on 1, tube: 3.0-273mm Thickness: 0.3-5.0 mm 2, square tube: 3 * 3-200 * 200mm thickness of 0.3-5.0mm 3, rectangular tube: 4 * 6-125 * 200mm thickness: 0.35.0mm 4, flower tube: 15.9- 76.2mm thickness: 0.3-1.5mm 5, oval tube: 6 * 10-155 * 270mm thickness: 0.3-5.0mm 6, flat oval tube: 4 * 18-63 * 172mm thickness: 0.3-5.0mm Application: 316, 316L for heavy polluted, the sea salt spray environment, atmospheric environment severe acid rain. Second, stainless steel pipe industry with effective implementation of the standards: ASTM A312 ASTM A778 GB / T12771 Material: 304 304L 316 316L 202 201 Specifications: φ13.7-300mm Thickness: 1.6-10mm Length: 6 m / disbursed way: chemical, petrochemical, water treatment, paper making, food hygiene and other piping equipment. Third, boiler heat exchangers, condensers with stainless steel pipe Executive standard: ASTM A249 JIS G3463 or DIN 17457 Material: 304 304L 316 316L 201 202 Spec: φ9.5 ~ φ159mm Thickness: 0.4-4.0mm Length: 6 m / disbursement purposes: to build high-voltage and extra high voltage power station boilers, construction of superheated steam pipes, boiling water pipes and superheated steam locomotive boiler tubes. Fourth, food hygiene stainless steel pipe Executive standard: ASTM A249 ASTM A270 JISG3347 Material: 304 316 316L 202 201 Specifications: φ19 ~ φ114mm Thickness: 0.5-2.5mm Length: 6 m / Expenses Use: food industry, milk , liquor, pharmaceutical industry equipment piping. Fifth, thin-walled stainless steel pipes Executive Standard: GB / T12771-2000 Material: 304 316 316L Specification: φ10 ~ φ159mm Thickness: 0.5-3.0mm Length: 6 m / Expenses way: drinking water projects, drinking water , drinking water, hot water pipes. Six dedicated pipe quality automobile exhaust pipe: 409 409L 410L 436L 441 444 201 Specification: φ25 ~ φ159mm Thickness: 0.5-3.0mm Length: 6 m / expended Uses: automotive exhaust system flow manifold muffler. Seven shaped stainless steel pipe quality: 316L, 316,304,301,201,202 Specifications: triangle tube, pentagonal tube, hexagonal tube, oval tube, flat oval tube, pipe arch, two arch pipe, half-pipe, D shaped tube, bread-shaped pipe, handrails, tapered tube, threaded pipe, embossed pipe, groove tube, rectangular tube, etc; Uses: building materials, machinery parts, frame, home / equipment, sanitary, hardware and other ; Eight, stainless steel tube technology: internal and external polishing (surface level: polished 180 #, 220 #, 240 #, 320 #, 400 #, 600 #); Scrub (80 # -400 #); drawing; acid; inner bead leveling; Live brilliant heat treatment. Sales Hotline: 0757-29303128 / 29303129 Sales Fax: 0757-29303123 The Division of stainless steel products are widely used in: Construction Construction pipe, tube metal products, decoration pipes, industrial piping tube, mechanical structure tube, food hygiene tubes, car exhaust / muffler Used for pipe, fluid delivery tubes, heat exchanger tubes, furniture, bathroom with a tube! Welcome customers and friends to inquire / discuss / Order.