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Help CenterStainless Steel Coil 904L Super Austenitic 0.6mm-2.0mm Thickness 1219mm Width 2B Finish for Chemical Process
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Hemaokang Steel (Shandong) Co., Ltd. is proud to offer premium Stainless Steel Coil 904L Super Austenitic with thicknesses ranging from 0.6mm to 2.0mm and a standard width of 1219mm, finished with a smooth 2B surface. As a trusted supplier in the global steel market, we understand the demanding requirements of chemical processing industries. Our 904L coils deliver exceptional corrosion resistance, high strength, and excellent formability, making them the ideal choice for aggressive environments where standard stainless steels fail. With our ISO9001-certified quality management system and a strong export presence spanning over 15 markets worldwide, we ensure consistent product quality and reliable supply for your critical projects.
The 904L grade is a low-carbon, high-alloy austenitic stainless steel with additions of molybdenum, copper, and nitrogen. This unique composition provides outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking in chloride-containing environments, as well as resistance to sulfuric acid, phosphoric acid, and other corrosive chemicals. The 2B finish offers a smooth, reflective surface that is easy to clean and enhances the material's aesthetic appeal, while the precise thickness tolerance of ±0.02mm ensures consistent performance in fabrication and processing.
Key Features & Technical Specifications
- Exceptional Corrosion Resistance: With high molybdenum and copper content, 904L resists reducing acids like sulfuric and phosphoric acid, as well as chloride-induced pitting and crevice corrosion.
- Superior Weldability and Formability: Low carbon content (≤0.02%) minimizes carbide precipitation during welding, maintaining corrosion resistance in welded joints. The austenitic structure allows for deep drawing, bending, and stamping without cracking.
- Consistent Mechanical Properties: Tensile strength ≥ 490 MPa, yield strength ≥ 220 MPa, elongation ≥ 35% – meeting stringent international standards for chemical equipment.
- Precise Dimensional Control: Thickness: 0.6mm, 0.8mm, 1.0mm, 1.2mm, 1.5mm, 2.0mm (other gauges available upon request); Width: 1219mm (standard), with slit options down to 100mm; Inner diameter: 508mm or 610mm.
- 2B Surface Finish: Cold rolled, bright annealed, lightly skin-passed – providing a uniform, semi-reflective surface ideal for chemical tanks, heat exchangers, and piping systems that require cleanability and corrosion resistance.
| Parameter | Value |
|---|---|
| Grade | 904L (UNS N08904, 1.4539) |
| Thickness Range | 0.6 mm – 2.0 mm |
| Width | 1219 mm (3000 mm max coil width available) |
| Surface Finish | 2B (Cold Rolled, Bright Annealed) |
| Chemical Composition (max %) | C:0.02, Si:1.0, Mn:2.0, P:0.045, S:0.035, Cr:19.0-23.0, Ni:23.0-28.0, Mo:4.0-5.0, Cu:1.0-2.0 |
| Mechanical Properties | Tensile ≥ 490 MPa, Yield ≥ 220 MPa, Elongation ≥ 35% |
| Coil Weight | 3 – 8 tons per coil (customizable) |
| Packaging | Sea-worthy, anti-corrosion wrapped with wooden pallets or steel frame |
Benefits for Your Chemical Processing Operations
- Extended Equipment Life: The superior corrosion resistance of 904L reduces maintenance frequency and replacement costs, especially in environments with sulfuric acid concentrations up to 90% at moderate temperatures.
- Faster Installation: Our coils are supplied with tight tolerances and clean edges, allowing for efficient cutting, welding, and forming. The 2B surface reduces cleaning time before installation.
- Flexible Supply: We offer custom splitting, slitting, and packaging options to meet your specific coil dimensions and weight requirements. Small trial orders are welcome.
- Reliable Quality Assurance: Every coil is tested for chemical composition, mechanical properties, and surface finish per international standards. We provide mill test certificates with each shipment.
At Hemaokang Steel, we have built a reputation for delivering high-performance stainless steel products to customers in North America, Europe, Southeast Asia, the Middle East, and beyond. Since our establishment in 2025, we have rapidly grown to achieve an annual export value of US$50 million – US$100 million, supported by a dedicated team of 51-100 skilled professionals. Our ISO9001-certified processes ensure that every coil meets the rigorous demands of chemical processing, offshore, and petrochemical industries. We maintain substantial stock of 904L coils in various thicknesses, enabling prompt delivery – typically within 2-4 weeks for standard sizes.
Choose Hemaokang Steel as your long-term partner for 904L stainless steel coils. Our experienced sales engineers are ready to assist with technical inquiries, sample requests, and customized solutions. Contact us today to discuss your project requirements and let us provide you with a competitive quotation. We are committed to excellence – from product quality to after-sales support.
Frequently Asked Questions (FAQ)
Q1: What is the difference between 904L and 316L stainless steel?
904L contains higher nickel, chromium, molybdenum, and copper than 316L, providing significantly better resistance to reducing acids and chloride pitting. It is the preferred choice for severe chemical environments where 316L would corrode quickly.
Q2: Can the 2B finish be used for food or pharmaceutical applications?
Yes, the 2B finish is smooth, non-porous, and easy to clean, making it suitable for many sanitary applications. However, for extremely high cleanliness requirements, a 2B or 2R (bright annealed) finish is often specified. Please consult our technical team for specific recommendations.
Q3: What is the minimum order quantity (MOQ) for 904L coils?
Our standard MOQ is 1 ton per thickness and width, but we can accommodate smaller trial orders for new customers. Custom widths and small quantities are available upon request.
Q4: How long does delivery typically take?
For standard thicknesses (0.6mm, 1.0mm, 1.5mm, 2.0mm) and 1219mm width, we usually ship within 2-3 weeks after order confirmation. Non-standard sizes or special finishes may require 4-6 weeks.
Q5: Are the coils suitable for welding without special precautions?
904L has low carbon content and good weldability. Standard welding methods (TIG, MIG, SMAW) can be used with matching filler metal. Preheating is not necessary, but post-weld heat treatment is generally not required unless the service environment is extremely aggressive.
Q6: What certifications do you provide with the coils?
We provide a Mill Test Certificate (MTC) per EN 10204 Type 3.1, which includes chemical composition and mechanical properties. Our factory is ISO9001:2015 certified, ensuring consistent quality control.
Q7: Can you supply coils cut to specific lengths or slit to narrower widths?
Yes, we offer custom slitting and cut-to-length services. We can slit coils to widths as narrow as 100mm and cut sheets up to 6000mm in length. Additional charges may apply.
Q8: How do you package the coils for export?
Coils are packed with anti-corrosion paper, plastic wrap, and steel strapping, then placed on wooden pallets or steel frames with edge protection. We follow international sea-worthy packaging standards to ensure safe transit.
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