904L stainless steel coil is a high-alloy austenitic stainless steel coil that contains high levels of chromium, nickel, molybdenum, and copper. It is known for its exceptional corrosion resistance, particularly in aggressive environments such as sulfuric acid, chloride-containing solutions, and seawater.
Description
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Metal In China® is a trusted stainless steel supplier in China. Stainless steel products cover plates, coils and pipes. We have a large inventory of 200 series, 300 series and 400 series stainless steel products. The most popular stainless steel grades in the market are 201, 304, 310, 316, 410, 420, 430, 2205 and 904L etc. We support customization of various surface treatments, including brushed, 2b, ba, polished and mirror (8k, rose gold), etc. We are very happy to provide each customer with a customized and reasonable quotation, including free sample delivery, contact us now.
Information
Features
904L stainless steel coil is a highly corrosion-resistant and versatile material that offers several features and benefits. Here are some key features and benefits of 904L stainless steel coil:
- Corrosion Resistance: 904L stainless steel is renowned for its exceptional resistance to a wide range of corrosive environments, including strong acids, such as sulfuric acid, phosphoric acid, and acetic acid. It also exhibits excellent resistance to pitting, crevice corrosion, and stress corrosion cracking.
- High Strength: 904L stainless steel coil has high tensile and yield strength, making it suitable for demanding applications where structural integrity and strength are critical.
904L Stainless Steel Coil For Sale
904L Stainless Steel Coil Factory
- Heat Resistance: This stainless steel grade exhibits good heat resistance and can withstand high temperatures without significant degradation. It retains its mechanical properties at elevated temperatures, making it suitable for applications involving heat and thermal cycling.
- Weldability: 904L stainless steel coil offers good weldability and can be readily welded using various conventional welding methods, such as TIG (tungsten inert gas) welding, MIG (metal inert gas) welding, and resistance welding. Proper welding procedures and filler materials should be used to ensure optimal results.
904L Stainless Steel Coil Factory in Stock
904L Stainless Steel Coil Supplier
- Formability: 904L stainless steel coil can be easily formed and fabricated into various shapes and structures. It has good workability and can be rolled, bent, stamped, and machined to meet specific design requirements.
- Low Carbon Content: 904L stainless steel is a low-carbon variant, which provides improved resistance to sensitization and intergranular corrosion. It reduces the risk of carbide precipitation at the grain boundaries, enhancing the material’s overall corrosion resistance.
904L Stainless Steel Coil Manufacturer
904L Stainless Steel Coil Supplier
- Wide Range of Applications: Due to its exceptional corrosion resistance, 904L stainless steel coil finds extensive application in industries such as chemical processing, oil and gas, petrochemicals, pharmaceuticals, pulp and paper, desalination plants, and marine environments. It is commonly used in equipment and components such as tanks, heat exchangers, piping, valves, fittings, and pumps.
- Longevity and Low Maintenance: The high corrosion resistance of 904L stainless steel coil contributes to its extended service life and reduced maintenance requirements. It can withstand harsh environments and corrosive media, resulting in cost savings over time.
Wholesale 904L Stainless Steel Coil
904L Stainless Steel Coil Factory in China
China 904L Stainless Steel Coil Supplier
Specification
Standard | ASTM,AISI,SUS,JIS,EN,DIN,BS,GB |
Finish | NO.1(Hot Rolled), NO.2B(Cold Rolled), Hairline, Brushed, BA, NO.3, NO.4, NO.240, NO.400, NO.8 etc. |
Grade | 201/202/304/309/309S/310/310S/304/304L/316/316L/316Ti/410/420/430/904L |
Thickness | 3mm-15mm (Hot Rolled) ;0.3mm-8mm (Cold Rolled) can be customized ; |
Width | 1000mm/1250mm/1500mm, can be customized |
Services | Welding/Punching/Cutting/Bending/Decoiling |
Package | Standard seaworthy package(protected by waterproof paper,wrapped in iron sheet, fixed by steel bars) |
Technology
904L is a high-alloy austenitic stainless steel with low carbon content. Its high amount of nickel and chromium combined with additions of molybdenum and copper give it excellent resistance to various forms of corrosion, stress corrosion cracking, and pitting and crevice corrosion. 904L is superior to conventional stainless steel grades in terms of its resistance to acids, especially sulfuric acid.
Here’s a general process for how 904L stainless steel coil is manufactured:
- Melting: The raw materials (iron, nickel, chromium, molybdenum, copper, etc.) are melted in an electric arc furnace. The exact proportions of these elements will depend on the specific grade of stainless steel being made.
- Refining: The molten steel is then refined to remove impurities. The refining process often involves a secondary refining process known as Argon Oxygen Decarburization (AOD), which reduces the carbon content and adds other elements.
- Casting: The molten steel is cast into slabs or billets, which are then cooled and solidified.
- Hot Rolling: The solid steel is then heated to a high temperature and passed through a series of rollers to reduce its thickness and make it into a coil.
- Cold Rolling: The hot rolled coil can then be further reduced in thickness by cold rolling. Cold rolling the steel allows for a smoother surface finish, higher precision, and improved mechanical properties.
- Heat Treatment: The cold-rolled steel is heat treated, often through annealing, to adjust its hardness, strength, and structural stability.
- Pickling and Finishing: The steel is pickled in acid to remove scale and then finished by passivating, which creates a thin protective oxide layer, and then it might be further processed to get a specific surface finish.
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Application
904L stainless steel coils are used in a variety of industries due to their excellent corrosion resistance and high nickel content. Some common applications include:
- Oil and Gas Industry: 904L stainless steel is often used in the oil and gas industry, especially in devices like piping, valves, or heat exchangers that must withstand corrosive substances.
- Chemical Processing: The resistance of 904L to a wide range of chemicals makes it ideal for use in processing plants, such as those used in the manufacture of pharmaceuticals, specialty chemicals, or petrochemicals.
- Desalination Plants: The corrosion resistance of 904L stainless steel, especially to chloride, makes it suitable for use in water treatment and desalination plants.
- Pulp and Paper Industry: In pulp and paper manufacturing, 904L stainless steel is used in parts and systems that are exposed to corrosive chemicals and high temperatures.
- Power Generation: In the power generation sector, 904L stainless steel is used in parts of steam and gas turbines and other components due to its strength at high temperatures and resistance to corrosion.
- Construction and Architecture: This type of stainless steel is sometimes used in the construction of large buildings and structures, particularly for exterior cladding, structural sections, and other elements where a high level of corrosion resistance is needed.
It should be noted that due to its relatively high cost compared to other stainless steels, 904L is typically used in applications where its superior corrosion resistance and toughness are necessary.
Package
Packaging of stainless steel coil is important to protect the material from damage during transit, handling, and storage. Here is a general overview of how stainless steel coils are packaged:
- Wrapping: The coil is typically first wrapped with a protective material like plastic film or waterproof paper to protect the surface from scratches or other potential damage. This also helps to prevent exposure to moisture which can cause rusting.
Stainless Steel Coil Package 1
- Edge Protection: The edges of the coil are often protected with additional material, such as cardboard or hard plastic edge protectors, to prevent damage to the edges of the coil. This is important because the edges can be particularly susceptible to damage during handling.
- Metal Strapping: Metal straps are usually used to secure the coil and the protective packaging. This helps to ensure the coil stays intact during transportation.
Stainless Steel Coil Package 2
- Wooden Pallet: For additional support, the coil is often placed on a wooden pallet. This provides a solid base for the coil and makes it easier to move with a forklift.
- Outer Packaging: An outer layer of packaging, often made of metal or wood, is sometimes used for additional protection, especially for international shipping where the coils might be exposed to harsh conditions.
Stainless Steel Coil Package 3
- Labeling: Finally, the coil is labeled with important information such as the size, grade, heat number, and any other relevant details about the steel. This helps to ensure the right material gets to the right place.
904L Stainless Steel Coil
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