904l Stainless Steel Seamless Pipe in Wuxi ,China
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- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 3 m.t.
- Supply Capability:
- 25000 m.t./month
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Item specifice
904L STAINESS STEEL
UNSN08904
DIN W.NR.1.4539
(Introduction of Commodity)
Similar Grade
UNS | ASTM A240 | Trademark |
UNS N08904 | SUS890L | 904L |
(Chemical Component)
Alloy | % | Ni | Cr | Cu | Mo | C | Mn | Fe | Si | P | S |
904L | Min | 23 | 19 | 1 | 4 | Balance | |||||
Max | 28 | 23 | 2 | 5.0 | 2 | 1 | Balance | 0.045 | 0.035 |
(Physical Properties)
Density | Fusion Point |
8.0g/cm3 | 1300-1390°C |
Mechanical Property
Alloy and state | Tensile Strength | Yield Strength | Elongation |
RM N/MM2 | RP0.2N/MM2 | A5% | |
904L | 490 | 216 | 35 |
904L is a fully austenitic structure, and the general content of high molybdenum austenitic stainless steel, 904L is not sensitive to the precipitation of the ferrite and the alpha phase.
Application
1. petroleum, petrochemical equipment, such as petrochemical equipment in the reactor, etc..
2. Storage and transportation equipment, such as heat exchangers, etc..
3. Power plant flue gas desulfurization device, the main use of the site are: absorption tower body, flue, file door, interior, spray system, etc..
4. Organic acid treatment system of scrubber and fan.
5. Seawater treatment plant, sea water heat exchanger, paper industry equipment, sulfuric acid, nitric acid equipment, acid, pharmaceutical industry and other chemical equipment, pressure vessels, food equipment.
6 .Pharmaceutical factory: centrifuge, reactor, etc..
7. Plant food: cans of soy sauce, cooking wine, salt, and dressing equipment.
8. Most suitable for dilute sulfuric acid and strong corrosive medium
Surface Finish :
Surface finish | Characteristics and application |
No.2B | The surface brightness and flatness of no2B is better than no2D. then through a special surface treatment to improve its mechanical properties, No2B could nearly satisfy comprehensive uses. |
No.3 | Polished with abrasive belt of git#100-#200, have better brightness with discontinuous coarse stria, used as inner and external ornaments for building, electrical appliances and kitchen utensils etc. |
No.4 | Polished with abrasive belt of grit #150-#180,have better brightness with discontinuous coarse stria, but thinner than No3, are used as bathtub buildings inner and external ornaments electrical appliances kitchen utensils and food processing equipment etc. |
HL | Polished with abrasive belt of grit #150-#320 on the NO.4 finish and has continuous streaks, mainly used as buildings ornaments elevators, door of building, frontal plate etc. |
BA | Cold rolled, bright annealed and skin-passed, the product have excellent brightness and good reflexivity like mirror, kitchen apparatus, ornament etc. |
8K | The product have excellent brightness and prefer reflexivity can to be the mirror. |
- Q:
- Yes, stainless steel pipes are suitable for underground installations. Stainless steel is highly resistant to corrosion and is known for its durability and strength. It can withstand harsh underground conditions, including moisture, soil movement, and chemical exposure. Stainless steel pipes are also immune to rust and do not require protective coatings, making them ideal for long-term underground use. Additionally, stainless steel pipes have a long lifespan and require minimal maintenance, further enhancing their suitability for underground installations.
- Q:
- Yes, stainless steel pipes can be used for rainwater harvesting systems. Stainless steel is a durable and corrosion-resistant material, making it an excellent choice for collecting and storing rainwater. Furthermore, stainless steel pipes are easy to maintain and have a long lifespan, ensuring the longevity and effectiveness of the rainwater harvesting system. Additionally, stainless steel pipes are hygienic and do not contaminate the collected rainwater, making them a safe option for storing water for various purposes such as irrigation, cleaning, or even drinking in some cases.
- Q:Can stainless steel water pipes be cooled and bent?
- Stainless steel water pipes can be cooled and bent.
- Q:What's the difference between cold drawn steel tube and hot rolled steel tube?
- Hot rolling is relative to cold rolling, cold rolling is performed under recrystallization temperature, while hot rolling is rolling above recrystallization temperature.Seamless steel pipe, hot-rolled and cold-rolled (DIAL) seamless steel pipe two categories.Hot rolled steel tubes are divided into ordinary steel tubes, low and medium pressure boiler tubes, high pressure boiler tubes, alloy steel pipes, stainless steel pipes, oil cracking pipes, geological steel pipes and other steel pipes, etc..
- Q:
- Yes, stainless steel pipes are suitable for mining operations. Stainless steel is highly durable and resistant to corrosion, making it an ideal choice for use in the mining industry. The mining environment often involves exposure to harsh chemicals, high temperature, and abrasive materials, all of which can cause regular pipes to deteriorate quickly. However, stainless steel pipes are known for their excellent corrosion resistance, ensuring that they can withstand the challenging conditions present in mining operations. Additionally, stainless steel pipes have high tensile strength, which allows them to endure the stress and pressure that can occur during the mining process. Moreover, stainless steel pipes are easy to clean, which is crucial in mining operations to prevent contamination and maintain the efficiency of the system. Overall, stainless steel pipes provide a reliable and long-lasting solution for mining operations, making them highly suitable for this industry.
- Q:
- The chemical composition and resulting properties of 2205 and 316 stainless steel pipes differ significantly. Firstly, 2205 is a duplex stainless steel that combines austenitic and ferritic stainless steels. This unique composition grants it exceptional corrosion resistance, high strength, and weldability. It is specifically engineered to endure highly corrosive surroundings, thus making it suitable for applications in the oil and gas industry, chemical processing, and marine environments. In contrast, 316 stainless steel is an austenitic stainless steel with a higher proportion of chromium and nickel compared to 2205. Consequently, it possesses superior corrosion resistance, particularly against chlorides and other aggressive chemicals. It also exhibits commendable heat resistance and is widely employed in industries such as food processing, pharmaceuticals, and medical equipment. Regarding mechanical properties, 2205 stainless steel generally boasts greater tensile and yield strength than 316 stainless steel. This renders it more appropriate for applications where strength and durability are critical factors. However, 316 stainless steel offers better formability and is easier to work with during fabrication. In conclusion, while both 2205 and 316 stainless steel pipes provide corrosion resistance, the choice between them depends on the specific requirements of the application. 2205 is preferred for highly corrosive environments and applications necessitating high strength, whereas 316 is commonly utilized in industries where superior corrosion resistance and good formability are pivotal.
- Q:
- Indeed, oil pipelines can utilize stainless steel pipes. Renowned for its exceptional resistance to corrosion, stainless steel is an ideal material for the transfer of diverse fluids, such as oil. Moreover, its durability and ability to withstand high pressure and temperature circumstances further enhance its suitability for oil pipelines. Additionally, the smooth inner surface of stainless steel pipes aids in diminishing friction and enhancing the oil's flow. Nevertheless, it is vital to carefully contemplate the selection of stainless steel grade and appropriate coating to guarantee compatibility with the specific type of oil and the prevailing environmental conditions in which they will be employed.
- Q:
- Stainless steel pipes are indeed suitable for use in chemical processing plants. Their outstanding corrosion resistance makes them a favored choice for piping systems within these facilities. Given that chemical processing plants frequently handle corrosive substances and operate under high temperatures, stainless steel pipes are well-equipped to withstand such challenging environments. They exhibit resistance to various chemicals, including acids, bases, and chlorides, which are commonly encountered in chemical processing plants. Furthermore, stainless steel's smooth interior surface reduces the likelihood of corrosion and facilitates effortless cleaning and maintenance. All in all, stainless steel pipes provide a dependable and long-lasting solution for transporting chemicals in chemical processing plants.
- Q:
- The common shapes of stainless steel pipes include round, square, and rectangular.
- Q:
- Yes, stainless steel pipes can be used for gas supply. Stainless steel is known for its excellent corrosion resistance and high strength, making it a suitable material for transporting various gases, including natural gas and propane.
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