| Type: | Stainless Steel Pipes |
|---|---|
| Standard: | ASTM |
| Grade: | 300 Series |
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What is differences between TP304/304L?
TP304/304L is to indicate the material grade, where T and P are Tube and Pipe, which means tube.TP304/TP304L is a double grade material, and the common ones are TP316/316L.TP304 and TP304L are two kinds of materials, and the main difference of their chemical composition is the range of carbon content and nickel content.TP304L (where the L is Low) has an upper limit of 0.035% carbon content, which is lower (Low) than TP304. Carbon in steel provides strength, but according to the chromium depletion principle, chromium carbide precipitation will affect corrosion resistance; the higher the chromium carbide precipitation, the worse the corrosion resistance. Because of the low carbon content can reduce the precipitation of chromium carbide, so the corrosion resistance of TP304L is higher than TP304. but the mechanical properties of the comparison, TP304 yield strength and tensile strength of the lowest value is higher than TP304L. TP304 / TP304L dual grade requirements is that the chemical composition of the material, the mechanical properties of the material can be simultaneously meet the TP304 and TP304L, which means that to take the intersection, the strength to meet the TP304 and TP304L, and the strength of the material to meet the TP304 and TP304L. That is to say to take the intersection, strength to TP304, and corrosion resistance to TP304L.
The characteristics of ASTM A249 TP304 Stainless Steel Welded Tubes
High corrosion resistance: excellent corrosion resistance, especially for chloride media and acidic environments with good corrosion resistance.
Excellent mechanical properties: good mechanical properties, including tensile strength, yield strength and elongation and other indicators.
Easy to weld and process: good welding properties and can be welded by conventional welding methods. It is also relatively easy to process and form.
Chemical Composition of ASTM A249 TP304 Stainless Steel Welded Tubes
| Grade | C | Ni | Si | N | S | Mn | P | Cr | Mo | |
| SS 304 | min. | - | 8.0 | - | - | - | - | - | 18.0 | - |
| max. | 0.08 | 10.5 | 0.75 | 0.10 | 0.030 | 2.0 | 0.045 | 20.0 |
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Mechanical Property of ASTM A249 TP304 Stainless Steel Welded Tubes
| Grade | Tensile Strength (MPa) min | Elongation (% in 50mm) min | Yield Strength 0.2% Proof (MPa) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| SS 304 | 515 | 40 | 205 | 92 | 201 |
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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