Shree Viratra Enterprises is one of India’s leading manufacturers of high-quality Stainless Steel 904L Sheets, Plates, and Coils that are utilised in numerous sectors. SS 904L Sheets, a high-performing austenitic stainless steel, with excellent formability and some respectable weldability. Uniform corrosion occurs in SS 904L plates when the passive layer is fully removed, or at least significantly damaged. For WNR 1.4539, this frequently occurs in hot alkaline solutions or acids. This 904L stainless steel, which is also known as UNS N08904, is used in a wide range of products, including flue gas cleaning systems, bleaching equipment for the pulp and paper industry, process equipment for the chemical industry, and petrochemical machinery.
We provide high-quality SS 904L Seamless Sheets in a variety of sizes and forms that are created using raw materials that meet both national and international standards for quality. These SS 904L Welded Plates are also provided in custom lengths, sizes, and shapes, and are priced competitively. Based solely on specifications and the fact that 904L has a high level of corrosion resistance, it would be straightforward to draw the conclusion that it is the superior alloy. This is necessary for specific applications, but for the vast majority of luxury watchmaking, 316L is more than enough.

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What is 904l steel plate, sheet & coil used for?

austenitic stainless steel 904l coils, plate,sheet are used in various applications due to their exceptional corrosion resistance, high strength, and durability. Some common uses include:
1. Chemical Processing: A 904l plate is widely used in chemical processing equipment such as reactors, vessels, and piping due to its resistance to acid corrosion, especially sulfuric acid and phosphoric acid.
2. Petrochemical Industry: It is employed in petrochemical plants for equipment like heat exchangers, tanks, and valves, where it withstands corrosive environments and high temperatures.
3. Desalination Plants: The SS 904l plate is suitable for use in desalination plants because it can resist corrosion from seawater and chloride solutions.
4. Oil and Gas Industry: It finds application in offshore platforms, pipelines, and processing equipment, where it provides excellent resistance to corrosion in harsh environments.
5. Pharmaceutical Industry: 904L stainless steel is used for pharmaceutical manufacturing equipment due to its corrosion resistance and hygienic properties.
6. Food Processing: It is employed in food processing equipment such as storage tanks, conveyor systems, and cookers where hygiene and corrosion resistance are essential.
7. Marine Applications: Stainless Steel 904L Plate is utilized in marine environments for components like boat fittings, propeller shafts, and seawater piping due to its saltwater corrosion resistance.
8. Aerospace Industry: It is used in aircraft components where resistance to corrosion and a high strength-to-weight ratio are critical.
9. Architectural Applications: 904L stainless steel is used in architectural projects for its aesthetic appeal, durability, and resistance to corrosion in outdoor environments.
10. Medical Equipment: It applies to medical instruments and implants due to its biocompatibility and corrosion resistance in bodily fluids.
904L steel plates, sheets and coils are utilized in industries where corrosion resistance, strength, and durability are paramount.

How do 904L stainless steel coils perform in cryogenic applications?

Due to their exceptional properties, 904L stainless steel coils perform admirably in cryogenic applications. Their high nickel content provides excellent toughness and flexibility at low temperatures, ensuring reliable performance in cryogenic environments. Additionally, 904L stainless steel exhibits superior corrosion resistance even at extreme temperatures, making it suitable for cryogenic storage tanks, pipelines, and equipment. 904L stainless steel coils are preferred for applications requiring durability, corrosion resistance and reliability in cryogenic conditions.

What surface treatments are available for 904L stainless steel plates?

Several surface treatments enhance 904L stainless steel plates. Pickling removes impurities, improving cleanliness and corrosion resistance. Passivation forms a protective oxide layer, boosting corrosion resistance. Polishing creates a smooth, reflective surface for enhanced aesthetics and cleanliness. Satin finishes reduce scratch visibility while maintaining a modern look. Electroplating deposits metals like chromium or nickel for enhanced corrosion resistance. Coatings, such as epoxy or polymer, provide extra protection and durability. Etching adds decorative patterns. These treatments offer versatility, catering to specific needs for appearance, durability, and corrosion resistance in various applications.

Are 904L stainless steel plates suitable for use in heat exchangers?

904L stainless steel plates are highly suitable for use in heat exchangers. Their exceptional corrosion resistance, particularly in acidic and chloride-containing environments, makes them ideal for such applications. Additionally, stainless steel 904l plates exhibits high strength and toughness, ensuring durability and reliability in heat exchanger operations. Its resistance to crevice and pitting corrosion further enhances its suitability in challenging conditions often encountered in heat exchanger environments. Overall, 904L stainless steel plates are preferred for heat exchanger applications where corrosion resistance and durability are paramount.

904l stainless steel vs 316l ?

904L stainless steel and 316L stainless steel are popular austenitic stainless steel grades. While both offer excellent corrosion resistance, 904L surpasses 316L in harsh environments due to its higher nickel and chromium content. This makes 904L more corrosion-resistant from acids, chloride solutions, and pitting. However, 316L is more economical and more accessible to fabricate, making it suitable for general-purpose applications. 904L is preferred in chemical processing, petrochemicals, and marine environments where corrosion resistance is critical. Their choice depends on specific application requirements, considering factors like corrosion resistance, cost, and fabrication ease.

Which material best for making 316L Vs 904l stainless steel watch ?

SS 316L and 904l materials are excellent for making watches due to their corrosion resistance, durability, and aesthetic appeal. 904L stainless steel is often preferred for luxury watchmaking due to its superior corrosion resistance, particularly in harsh environments. Its higher nickel and chromium content makes it more resistant to corrosion from sweat, saltwater, and other corrosive elements, ensuring the longevity and beauty of the watch. Additionally, 904L stainless steel has a distinctive polished finish that adds to the luxurious look of high-end watches. Therefore, 904L stainless steel may be preferred over 316L stainless steel for luxury watches.

Specification of Stainless Steel 904L Sheets, Plates, Coils

Specifications : ASTM A240 / ASME SA240

Dimensions : ASTM, ASME, and API

Width 1000mm, 1219mm, 1500mm, 1800mm, 2000mm, 2500mm, 3000mm, 3500mm, etc

Thickness: 4mm-100mm

Length : 2000mm, 2440mm, 3000mm, 5800mm, 6000mm, etc

Surface Finish : 2B, 2D, BA, NO.1, NO.4, NO.8, 8K, mirror, chequered, embossed, hairline, sand blast, Brush, etching, Hot rolled plate (HR), Cold rolled sheet (CR), SATIN (Met with Plastic Coated) etc

Hardness : Soft, Hard, Half Hard, Quarter Hard, Spring Hard etc.

Form : Coils, Foils, Rolls, Plain Sheet, Shim Sheet, Perforated Sheet, Chequered Plate, Strip, Flats, Blank (Circle), Ring (Flange) etc.

Equivalent Grades of Stainless Steel 904L Sheets, Plates and Coils

STANDARD	UNS	WERKSTOFF NR.	AFNOR	EN	JIS	BS	KS
SS 904L	N08904	1.4539	Z2 NCDU 25-20	X1NiCrMoCu25-20-5	SUS 904L	904S13	STS 317J5L

Chemical Composition of Stainless Steel 904L Sheets and Plates, Coils

Grade	C	Mn	Si	P	S	Cr	Mo	Ni	Cu
SS 904L	0.020 max	2.00 max	1.00 max	0.040 max	0.030 max	19.00 – 23.00	4.00 – 5.00 max	23.00 – 28.00	1.00 – 2.00

Chemical Composition of Stainless Steel 904L Sheets and Plates, Coils

Density	Melting Point	Tensile Strength	Yield Strength (0.2%Offset)	Elongation
7.95 g/cm3	1350 °C (2460 °F)	Psi – 71000 , MPa – 490	Psi – 32000 , MPa – 220	35 %

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