| Type: | Stainless Steel Pipes |
|---|---|
| Standard: | ASTM |
| Grade: | 300 Series |
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ASTM A270 covers grades of seamless, welded, and heavily cold worked austenitic and ferritic/austenitic stainless steel sanitary tubing. Seamless tubes shall be manufactured by a process that does not involve welding at any stage. Welded tubes shall be made using an automated welding process with no addition of filler metal during the welding process. Heavily cold worked tubes shall be made by applying cold working of not less than 35% reduction of thickness of both wall and weld to a welded tube prior to the final anneal. No filler shall be used in making the weld. All material shall be furnished in the heat-treated condition. A chemical analysis of either one length of flat-rolled stock or one tube shall be made for each heat. Each tube shall be subjected to mechanical tests like reverse flattening test, hydrostatic test or nondestructive electric test. Longitudinally polished finish shall be performed on the inside surface only while a circumferential polished finish shall be done on either the inside surface, outside surface, or both.
Sanitary Stainless Steel Tube is mainly made of 2 different austenitic stainless steel grades. Most sanitary tube is made of SS304 or SS316L. These are both of good strength and high temperature capable. SS316 have excellent ductility and so they could be formed into unusual shapes. Manufacturers use a low carbon version of the alloy to improve its weldability. However, in the case of A270 TP316L, the specification ASTM A270 does not include prerequisites for welding. Though if a welding operation is to take place, the welded SA270 TP316L Sanitary Stainless Steel Tube must be minus any filler metals. And the welding procedure carried out is to be an automatic one. The problem associated with welding is the formation of carbide precipitates which causes the component to corrode.
Therefore, the use of A270 TP316L Sanitary Tube solves the problem by eliminating intergranular corrosion. In industries like the food and beverage, that makes use of ASTM A270 Sanitary Tubing, the interior walls of the tube come in contact with certain actives present in food. Similarly, in the case of the pharma sector, there are various acid derivatives or highly volatile compounds that come in contact with the walls of the A270 TP316L Sanitary Stainless Tube.
ASTM A270 TP316L Chemical Composition
| Grade | Carbon | Manganese | Phosphorus | Sulfur | Silicon | Chromium | Nickel | Molybdenum |
| TP316L | 0.035 | 2 | 0.045 | 0.03 | 1 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 |
ASTM A270 TP316L Mechanical Properties
| Material | Temperure | Heat | Yield Strength | Tensile Strength | Elongation |
| Min. | Treatment | Ksi (MPa) | Ksi (MPa) | ||
| º F(º C) | |||||
| TP316L | 1900(1040) | Solution | 25(170) | 70(485) | 35 |
ASTM A270 TP316L Physical Properties
Grade |
Specific Heat 0-100°C (J/kg.K) | Density (kg/m3) | Elastic Modulus (GPa) | Thermal Conductivity (W/m.K) | Mean Coefficient of Thermal Expansion (μm/m/°C) | Electrical Resistivity (nΩ.m) | |||
| at 100°C | at 500°C | 0-100°C | 0-315°C | 0-538°C | |||||
| TP316L | 500 | 8000 | 193 | 16.2 | 21.5 | 17.2 | 17.8 | 18.4 | 720 |
Baowu Aluminum (Shandong) Co., Ltd. is located in Dongchangfu county, which is the largest aluminum manufacturing county in north China. The factory is only one kilometer from the Jiliao expressway, which make our transportation more convenient. Our total investment is more than one billion yuan for two large factories. The factory covers an area of 120, 000 Square Meters and The company employs more than 500 staff, including over 60 engineering technicians. Our annual output capacity is more than 120, 000 tons of aluminium profiles. Baowu has been awarded the honorary titles of "China Patent Shandong Star Enterprise", "Key Enterprise of Shandong Architectural Profile Industry", "Famous Brand of the Province Construction Machinery Industry", "Shandong Famous Brand", "Well-known Trade Mark of Shandong Province", "China Energy-saving Product Certification", etc. Our company was appraised as a national medium-sized enterprise by the Agricultural Ministry of China in 2004. As a professional aluminum profiles manufacturer, we specialized in manufacturing building door and window, decoration, curtain wall and industrial aluminum profiles.
We have imported advanced manufacturing, checking and testing equipment of aluminum profiles from USA, Germany, Japan, Italy and Switzerland. With advanced checking and testing method and perfect quality guarantee system, our products are produced in strict accordance with the GB/5237 standard and have passed the qualification of ISO9001: 2000 International Quality Management System, ISO14001: 2004 Environmental Management System, 18000: 2001 Occupational Health Management System and 8000: 2001 Social Responsibility Management system. Meanwhile, we provides our customer with many kinds of finishes, such as sand blasting, polishing, brush, anodizing, electrophoresis, ceramic electrophoresis, sparkling electroporesis, powder coating, thermal insulation, fluorocarbon spraying (PVDF COATING), wood grain, etc. With stable product quality and perfect after-sales service, Baowu has been recognized as qualified supplier by lots of domestic famous enterprises such as Country Garden, Haier, Goertek, etc. Our aluminum profiles have been exported to many countries, such as USA, Brazil, Vietnam, India, South Korea, Australia, Germany, Kenya, Russia, Israel, Japan, etc.
"Quick response to market development, never give up the principle of quality, continuously dedicate in brand promotion, improve and innovate our products, provide customers with high quality products and service". Baowu (Shandong) Aluminum Co., Ltd. is sincerely looking forward to cooperating with you to create a beautiful tomorrow together.
Q:Can I get samples before order ?
A:Yes, of course. Usually our samples are free,we can produce by your samples or technical drawings.
Q:Can I go to your factory to visit?
A:Of course, we welcome customers from all over the world to visit our factory.
Q:How can I get a quotation from you ?
A:You can leave us message, and we will reply every message in time. Or we may talk on line.
Q:What product information do I need to provide?
A:You need to provide the grade, width, thickness, coating and the number of tons you need to purchase.
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.we accept the third party inspection absolutely.
Q:How do we trust your company?
We specialise in exporting business for over 15 years as golden supplier, Headquarter locates in Liaocheng City, Shandong province, you are welcome to investigate in any ways, by all means.
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