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304/304L stainless steel pipe Stainless steel has significant applications in industry due to its ability to resist rust from harmful chemicals and harsh environments. It exhibits incredible resistance when exposed to alloyed environments and components. Different stainless steels are used in industry for different purposes. Among all these stainless-steel products, 304/304L stainless steel pipe is preferred. Grade 310 steel pipe is basically a medium carbon stainless steel and can be used in high temperature applications such as heat treatment equipment and furnace components. Stainless Steel 321,347,904 Pipes In case of continuous use, it withstands a temperature of 1150 degrees Celsius, and in case of intermittent use, the temperature of the bearing is 1035 degrees Celsius. 310S is also known as low carbon version compared to 310 grades. Grade 316/316L is essentially a standard grade containing molybdenum, second in importance only to grade 304. Molybdenum provides general corrosion resistance, especially resistance to crevice and pitting corrosion in chloride environments. Grade 316L is often referred to as low carbon content 316. Not sensitizing. That is why it is widely used for heavy weldable parts. Stainless steel is generally known as super alloy steel. The chromium content of this product is approximately 4 to 30%. According to the crystal structure, they can be easily divided into ferritic, martensitic, and austenitic steels. Grade 317 is harder than other stainless steels. A chip breaker is recommended to improve machining grade. Constant feeding reduces hardness and therefore low speeds are used. Both 317 grade steel pipes can be welded by resistance and fusion methods. For this alloy, not all oxyacetylene is used. For good results, use 317L or AWS E/ER317 filler metal. Grade 321 is basically an austenitic 18/8 steel stabilized with titanium or niobium. They are not susceptible to inter granular corrosion when heated and are therefore used in the range of 425-850°C. Stainless Steel 304,310,316,317,321,347,904 Pipes Property

Stainless Steel 321,347,904 Pipes

An improved version of 321 called 321H has a higher carbon content to provide improved and increased temperature resistance. One limitation of the 321 is that the titanium content cannot deliver higher temperature arcs. That's why it's not recommended for soldering. Like the other grades, 321 has excellent welding and forming properties and is easy to roll or brake. It also has excellent welding properties. For these grades, post-weld annealing is not required. They exhibit excellent toughness at low temperatures. For decorative applications, grade 321 steel pipe is not recommended at all because it does not polish well. SS 347 pipe is dimensionally accurate, durable, and strong, and is available in highly corrosion resistant specifications. The 347 steel pipes are produced according to international and national standards. Grade 347 also provides reliable resistance to higher temperature sensitivity. 347 stainless steel pipe is an austenitic stainless steel grade containing niobium and tantalum for excellent resistance to intergranular corrosion. The maximum percentages for the chemical composition of Grade 347 are: Phosphorus (0.045), Molybdenum (0.50), Carbon (0.08), Manganese (2), Chromium (19), Sulfur (0.03) and Copper (0.50). 347 steel pipe has superior forming and welding capabilities. 904L stainless steel tube Grade 904L stainless steel pipes are generally unstable austenitic steels with small amounts of carbon. Adding high-alloy steel to copper helps improve resistance to strong acids such as sulfuric acid. Grade 904L stainless steel has crevice corrosion and stress cracking. It is generally non-magnetic and has excellent toughness, ductility, and weldability. 904L grades often contain surprising amounts of expensive materials such as nickel and molybdenum. Currently, most applications use grade 904L stainless steel pipe in place of duplex stainless steel. Stainless Steel 304,310,316,321,347 Pipes Grade

Stainless Steel 304,310,316,317,321,347,904 Pipes Property

This grade has lower mechanical properties than standard 304 grades. Like 304 stainless steels, it is also used in brewing and brewing beer. Its purpose is beyond the food industry. It is also ideal for metal parts such as bolts and nuts when exposed to salt water. 310/310 class performance These grades contain 20% nickel, 25% chromium. This is often what makes it profoundly safe to erosion and oxidation. Grade 310S is basically a low carb version that is less prone to brittleness. It also shows the sensitivity of the service. The highest and average contents of chromium and nickel, respectively, enable stainless steel to reduce the sulfuric acid atmosphere containing H2S. Physical properties of class 310/310S the physical properties of 310/310S stainless steel are summarized as room temperature density, strength, shear modulus, Poisson's ratio, electrical conductivity, and melting point, respectively. Other physical properties that make the products incredible are relative magnetic permeability, coefficient of expansion and thermal conductivity. characteristic Typical compositions of grade 321 are S, Cr, Si, Mn, C, N and Ni. The mechanical properties of grade 321 include moderate tensile strength, hardness, elongation, and yield strength. Physical properties may include specific heat, resistance, average coefficient of expansion, and density. 321/321H are suitable for extreme temperature service due to their good mechanical properties. These grades also offer higher stress rupture and creep properties. Intergranular corrosion and sensitive exposure can be considered. Both grades can be cold, hot, and machined. It can perform high-speed turning, high-speed cutting, high-speed drilling, and other operations. 347 and 347H stainless steel tubes are available in welded and seamless forms in NB and OD sizes. The length can be arbitrary length, double random and single random. Its end is slanted, patterned and smooth. The end guard can be made of plastic cover. Its exterior is number 8 and it is not. 1. Delivery mode can be cold drawn, baked and pickled or polished. Stainless Steel 304,310,316 Pipes Resistance

Stainless Steel 304,310,316,321,347 Pipes Grade

This grade has lower mechanical properties than standard 304 grades. Like 304 stainless steels, it is also used in wine making and brewing. Its purpose goes beyond the food industry. It is also ideal for metal parts like bolts and nuts when exposed to salt water. They are widely used in moderately carburizing atmospheres, such as petrochemical environments. Heat-resistant alloys are use d in harsher atmospheres. Quenching with Grade 310 is not recommended at all due to the frequent use of thermal shock fluids. Due to their low permeability and toughness, these grades are often used in low temperature applications. Grade 310/310S Chemical Composition Grade 310 stainless steel and grade 310S stainless steel have different chemical compositions, which are summarized in the following paragraphs. Grades 310 and 310 S contain carbon, silicon, sulfur, manganese, phosphorous, nickel and chromium. For each element, its chemical composition is different. Grade 316L is often referred to as low carbon content 316. It is immune to allergies. Therefore, it is widely used for heavy duty weldable parts. There is no price difference between 316 and 316L steel pipes. The austenitic structure provides excellent toughness. Stainless Steel 304,310,316,317,321 Process Compared to nickel-chromium stainless steel, 316L has the highest fracture, creep, and tensile strength at peak temperatures. Grade 317 is harder compared to other stainless steels. Chipbreakers are recommended for grade machining. Continuous feed reduces hardness, so use low speed. Both grade 317 steel pipes can be welded by resistance and welding methods. For this alloy, oxyacetylene is not used. For good results, use filler metal 317L or AWS E/ER317. Grade 317 can be heat treated by methods commonly used in hot working. At 1149-1260°C or 2100-2300°F, it can be heated, but should not be heated below 927°C. Grade 321 is essentially a stabilized 18/8 austenitic steel with the addition of titanium or niobium. They are insensitive to intergranular corrosion when heated and are therefore used in the 425-850°C range. For applications requiring a temperature range close to 900°C, Grade 321 is the most important choice, with a high strength, spall-resistant composition. and phase stability against water corrosion. Degree 347 SS 347 pipe is dimensionally accurate, durable, and strong, and is available in highly corrosion resistant specifications. The 347 steel pipes are produced according to international and national standards. Grade 347 also provides reliable resistance to higher temperature sensitivity.

Stainless Steel 304,310,316 Pipes Resistance

Provides a range of atmospheric environments in which the product operates well. In hot chloride environments, crevice corrosion and pitting corrosion are prone to occur. This product is suitable for stress cracking at 60°C. It is resistant to 1000 mg/l of drinking water at ambient temperature. 316 is considered "Marine Grade SS", but not hot water at all. In marine environments, this product exhibits surface corrosion. This product has a rough surface and a split finish. Corrosion Resistance - This grade is superior if welded in the annealed condition but is not recommended for post weld annealing processes. Industrial applications are possible at temperatures of 900-425 degrees Celsius. At 60°C, this grade may be subject to crevice and pitting corrosion and stress cracking in chloride environments. Heat Resistance - It provides good oxidation resistance at 900°C in intermittent use and continuous use at 925°C. It can even perform well at 425-900°C in blue corrosive conditions. Higher thermal strength can be achieved with 321H, especially for higher temperatures in structural applications. Grade 904L SS has excellent resistance to chloride attack and hot sea water. Stress cracking occurs due to the high nickel content. Additionally, the addition of copper to the grade helps provide resistance to reducing agents and sulfuric acid under mild and aggressive conditions. Grade 904L has moderate corrosion resistance between standard and super austenitic grades at 6 mol%. This particular grade is less resistant to acids such as nitric acid. After cold working, these steel grades must be quenched for maximum stress corrosion cracking in critical environments. Grade 904L has high oxidation resistance. However, the stability of the structure collapses at temperatures above 400°C.

Stainless Steel 304,310,316,317,321 Process

manufacturing process the 317L production process requires constant feed and low speed to reduce the tendency to work hardening. This steel is generally harder than grade 304. Provides long string chips. It uses a chip breaker. Resistance welding and conventional fusion are recommended. Oxyacetylene welding should be avoided. Another thing that can be done is traditional heat treatment. This product is heated in the temperature range of 1149-1260 degrees Celsius or 2100-2300 degrees Fahrenheit. It is not recommended to heat it below 927 degrees Celsius or 1700 degrees. Drawing, heading, punching, and cutting are possible using the 317L grade, and internal stress is reduced by post-working annealing. Anneal at 1010-1121°C or 1850-2050°F followed by rapid cooling. However, grade 317L did not respond to heat treatment. Some applications of 317 SS include: nuclear power plants, petrochemical process equipment and fossil condensers. The elements of grade 317/317L are Fe, Cr, Mo, P, S, C and Ni. Grade 317L has mechanical properties detailing Poisson's ratio, tensile strength, hardness, modulus of elasticity, yield strength, and elongation at break. 317L shows very good corrosion resistance against a variety of chemicals such as acidic chloride environments. It also shows resistance against sulfuric acid concentration of 120 degrees Fahrenheit. Due to its low carbon and high molybdenum content, this grade is easily used for welding. It has great weldability and great formability. 904L stainless steel grades have higher steel purity and lower sulfur content. Grades can be machined using standard methods. It can be cold bent, although in most cases no subsequent annealing is required. Fabrication is or is carried out in severe stress corrosion cracking. It has good oxidation resistance at 900°C in intermittent use and 925°C in continuous use. It can even perform well in 425-900°C water corrosive conditions. Higher thermal strength can be achieved with 321H, especially for higher temperatures in structural applications.

  • Conclusion

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Comments (17 Comments)

Fahimeh

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Reza

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Khanzadeh

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Maryam Zamani

Different colored steels are used in the industry for different purposes, among all these steel products are preferred

Sohila

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Zahra movahedifar

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Taha ale taha

304/304L stainless steel pipe Stainless steel has significant applications in industry due to its ability to work

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