Description
Product Description
Product Description
The stainless steel square tube is a hollow long steel bar. Because the cross section is square, it is called a square tube. A large number of pipelines used to transport fluids, such as petroleum, natural gas, water, gas, steam, etc. In addition, when the bending and torsional strength are the same, the weight is light, so it is also widely used in the manufacture of mechanical parts and engineering structures.
| | /S30400 | C | Mn | P | S | Si | Cr | Ni | N | Cu |
| 1 | ASTM A276/A276M-15 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 18.0-20.0 | 8.0-11.0 | | |
| 2 | ASTM A959-11 | 0.07 | 2.00 | 0.045 | 0.030 | 1.00 | 17.5-19.5 | 8.0-11.0 | | |
| 3 | ASTM A240/A240M-15a | 0.07 | 2.00 | 0.045 | 0.030 | 0.75 | 17.5-19.5 | 8.0-10.5 | | |
| 4 | ASTM A182/A182M-15 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 18.0-20.0 | 8.0-11.0 | 0.10 | |
| 5 | ASTM A193/A193M-15 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 18.0-20.0 | 8.0-11.0 | | |
| 6 | ASTM A269/A269M-15 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 18.0-20.0 | 8.0-11.0 | | |
| 7 | ASTM A312/A312M-15a | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 18.0-20.0 | 8.0-11.0 | | |
| 8 | ASTM A320/A320M-15a | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 18.0-20.0 | 8.0-11.0 | | |
| 9 | ASTM A403/A403M-15 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 18.0-20.0 | 8.0-11.0 | | |
| 10 | ASTM A493-09(2013) | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 18.0-20.0 | 8.0-10.5 | 0.10 | 1.00 |
| 11 | ASTM A554-15a (MT-304) | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 18.0-20.0 | 8.0-11.0 | | |
| 12 | JIS G4303:2012 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 18.0-20.0 | 8.0-10.5 | | |
| 13 | JIS G4304:2012 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 18.0-20.0 | 8.0-10.5 | | |
| 14 | JIS G4305:2012 | 0.008 | 2.00 | 0.045 | 0.030 | 1.00 | 18.0-20.0 | 8.0-11.0 | | |
| 15 | GB/T 20878-2007 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 18.0-20.0 | 8.0-11.0 | | |
Scope Of ApplicationStainless steel square tube classification: square tube is divided into seamless steel pipe and welded steel pipe (seam pipe). According to the shape of the section, it can be divided into square and rectangular tubes. Round steel tubes are widely used, but there are also some semi-circular, hexagonal, equilateral triangle, octagonal and other special-shaped steel tubes.For stainless steel square pipes that are subjected to fluid pressure, hydraulic tests are required to check their pressure resistance and quality. No leakage, wetting or expansion under the specified pressure is qualified. Some steel pipes are also rolled according to standards or demander requirements Side test, flaring test, flattening test, etc.Square tube specification: 5*5~150*150 mm thickness: 0.4~6.0 mmMaterial of square tube: 304, 304L, TP304, TP316L, 316, 316L, 316Ti, 321, 347H, 310SProduction Process:Round steel preparation → heating → hot rolling piercing → cutting head → pickling → grinding → lubrication → cold rolling → degreasing → solution heat treatment → straightening → pipe cutting → pickling → finished product inspection.Performance analysis:Metals can react with oxygen in the atmosphere to form an oxide film on the surface. The iron oxide formed on ordinary carbon steel will continue to oxidize, causing rust to continue to expand and eventually form holes. This can use paint or oxidation-resistant metal for electroplating to protect the carbon steel surface, but this protective layer is just a thin film, if the protective layer is damaged, the underlying steel will begin to rust again. Whether the stainless steel pipe is corroded is related to the chromium content in the steel. When the chromium content in the steel reaches 12%, a layer of passivated, dense chromium-rich oxide is formed on the surface of the stainless steel pipe in the atmosphere to protect the surface and prevent it Further reoxidized. This oxide layer is extremely thin, through which you can see the natural luster of the steel surface, giving stainless steel a unique surface. If the chromium film is destroyed, the chromium in the steel and the oxygen in the atmosphere regenerate a passive film and continue to play a protective role. In some special environments, stainless steel will also fail due to some local corrosion, but stainless steel and carbon steel will not fail due to uniform corrosion, so the corrosion margin is meaningless for stainless steel pipes. Detailed Photos
Detailed Photos
Product Parameters
Product Parameters
| ASTM 304/304L Stainless Steel Tube/Pipe |
| Product: | ASTM 304/304L Stainless Steel Tube/Pipe |
| Material: | Stainless Steel 200 series,300series,400series |
| Standard: | ASTM/AISI/DIN/JIS/GB…. |
| Dimension: | Thickness:0.3MM-6MM,OD:8MM-325MM |
| Length: | Random Length |
| Surface Finish: | No.1/2B/No.4/4K/6K/8K/HL/Matt |
| Tchnology: | Cold Rolled ,Hot Rolled |
| MOQ: | 1TON |
| Package: | Standard Export Packing,Or As Per Your Requirement |
| Application: | Railings,Staircase Railing Balustrade,Windows,Balustrsde System,Equipment Manufacturing and Maintenance,etc. |
Company Profile
Company Profile
Shandong Zinc-plastic Moment Steel Co., Ltd., located in Liaocheng, Shandong, the largest steel pipe production base in China, is the earliest subsidiary of Shandong Iron and Steel Group. Founded in 2005, the company has now developed into a large enterprise with 12 stainless steel pipe production lines and an annual production capacity of 1 million tons. In 2017, the company built a new production workshop with an investment of 250 million yuan in the first phase, covering an area of 150 mu. The ERW straight seam high frequency resistance process was used to produce welded pipes for oil and natural gas engineering, with an annual output of about 300000 tons. It was put into production on June 19, 2008. The company has more than 900 employees, including 67 middle and senior technicians and 16 with senior titles.Shandong Zinc-plastic Moment Steel Co., Ltd., has been rated as the first batch of China's national inspection-free product enterprises, the first batch of China's well-known trademark enterprises and the first China's top 500 enterprises in the industry. The products sell well all over the country and are exported to more than 50 countries such as the European Union, the United States, Australia, Southeast Asia and the Middle East. They are widely used in many national key projects such as the Three Gorges Project, the Capital International Airport, Shanghai Pudong International Airport, the Natural Gas Reconstruction Project of China (Hong Kong) Gas International Co., Ltd., and the Jin-Jin Expressway.Main business: stainless steel pipe, hot-dip galvanized steel pipe, oil casing, spiral welded pipe, square pipe, steel-plastic composite pipe welded pipe, etcFAQ
FAQ
Q:What is your advantage?A:Honest business with competitive price and professional service on export process.
Q:Can you give warranty of your products?A:Yes,we extend a 100% satisfaction guarantee on all items.Please feel free to feedback immediately if you are not pleased with our quality or service.
Q:How to get a sample?A:All the samples we are charged. You need to tell us your specific address then we will send by DHL or Fedex to you. All the fees should be charged by yourself.Q:Does the product have quality inspection before loading?
A:Of course, all our products are strictly tested for quality before packaging, and unqualified products will be destroyed.
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