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Help Center904L Stainless Steel Plate 2mm 4mm 6mm Thickness for Chemical Equipment Standard Compliant
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Hemaokang Steel (Shandong) Co., Ltd., established in 2025 with an annual export value of US$50 million to US$100 million, is proud to offer premium 904L Stainless Steel Plates in thicknesses of 2mm, 4mm, and 6mm, specifically designed for chemical equipment applications. Our plates are manufactured to meet strict international standards, ensuring exceptional corrosion resistance and durability in aggressive environments. With a dedicated team of 51–100 employees and ISO9001 certification, we guarantee consistent quality and reliable supply for global clients.
The 904L grade (UNS N08904) is a high-alloy austenitic stainless steel with low carbon content, offering superior resistance to pitting, crevice corrosion, and stress corrosion cracking in chloride-containing media. Our plates are available in standard widths and lengths, with customizable options to meet your specific project requirements. Below are the key technical specifications:
| Parameter | Value |
|---|---|
| Thickness | 2mm, 4mm, 6mm (±0.1mm tolerance) |
| Width | 1000mm – 2000mm (customizable) |
| Length | 2000mm – 6000mm (customizable) |
| Surface Finish | 2B, BA, No.1 (optional) |
| Standard | ASTM A240, EN 10088-2 |
| Chemical Composition | C ≤0.02%, Si ≤0.70%, Mn ≤2.00%, 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 ≥215 MPa, Elongation ≥35% |
Key Features & Benefits:
- Exceptional Corrosion Resistance: 904L offers excellent resistance to sulfuric acid, phosphoric acid, acetic acid, and chloride environments, making it ideal for chemical processing equipment, heat exchangers, and storage tanks.
- High Strength & Durability: With a tensile strength of ≥490 MPa and good elongation, our plates can withstand high pressure and thermal stress common in chemical plants.
- Low Carbon Content: Minimizes the risk of intergranular corrosion after welding, ensuring long-term structural integrity.
- Precision Thickness Tolerance: Each plate is rolled to ±0.1mm tolerance, guaranteeing consistent performance and easy fabrication.
- Customizable Dimensions: We offer flexible sizing options to match your exact project specifications, reducing waste and fabrication time.
- ISO9001 Certified Quality: Our manufacturing process follows strict quality control procedures, from raw material sourcing to final inspection, ensuring every plate meets international standards.
- Cost-Effective Solution: Compared to other high-alloy materials like Hastelloy, 904L provides a balanced mix of performance and affordability for chemical equipment.
Applications:
- Chemical reactors, columns, and piping systems
- Heat exchangers and condensers in corrosive environments
- Storage tanks for acids, alkalis, and saline solutions
- Flue gas desulfurization (FGD) equipment
- Pharmaceutical and food processing equipment requiring high purity
- Offshore and marine structures exposed to chloride attack
Quality Assurance & Trust: Hemaokang Steel (Shandong) Co., Ltd. has been serving global markets including North America, South America, Europe, Asia, Africa, and Oceania since 2025. With an annual export value exceeding US$50 million and a team of over 50 professionals, we have built a reputation for reliable supply and technical support. Our ISO9001 certification ensures that every plate is traceable, tested, and certified. We provide mill test certificates (MTC) with each shipment, and third-party inspection is welcome. Our factory in Liaocheng, Shandong, China, is equipped with advanced rolling mills, heat treatment furnaces, and precision cutting lines, allowing us to deliver orders on time and to specification.
Why Choose Our 904L Stainless Steel Plates?
- Competitive pricing with direct factory supply
- Fast delivery: standard sizes in stock, custom sizes within 2–3 weeks
- Free sample for quality evaluation (freight collect)
- Professional technical support for material selection and fabrication
- Flexible payment terms: T/T, L/C, etc.
Frequently Asked Questions (FAQ):
Q1: What is the difference between 904L and 316L stainless steel?
A: 904L contains higher nickel (23–28%) and molybdenum (4–5%) than 316L, providing superior resistance to pitting, crevice corrosion, and stress corrosion cracking, especially in chloride and sulfuric acid environments. It is often used where 316L fails.
Q2: Can these plates be welded easily?
A: Yes, 904L has low carbon content, which minimizes carbide precipitation during welding. Standard welding methods like TIG, MIG, and SMAW can be used with appropriate filler metals (e.g., 904L filler wire). We recommend post-weld heat treatment for optimal corrosion resistance in severe services.
Q3: Do you provide cutting and processing services?
A: Yes, we offer laser cutting, plasma cutting, and shearing to your required dimensions. Custom machining (drilling, bending) is also available upon request. Please contact our sales team with your drawings.
Q4: What is the typical lead time?
A: For standard thicknesses (2mm, 4mm, 6mm) and sizes (1500x3000mm, etc.), we maintain stock and can ship within 7–10 days after order confirmation. Custom sizes and large quantities require 2–4 weeks depending on volume.
Q5: Are your plates certified for use in pressure vessels?
A: Our plates are manufactured according to ASTM A240 and EN 10088-2 standards. They are suitable for pressure vessel applications, but we recommend confirming local code requirements. We can provide material test reports (MTR) for traceability.
Q6: What is the minimum order quantity (MOQ)?
A: For 2mm and 4mm thickness, MOQ is 1 ton per size. For 6mm, MOQ is 2 tons. However, we can accept smaller trial orders for first-time customers. Please inquire.
Q7: How do you ensure the quality of the plates?
A: We have a strict quality control system from raw material (mill certificates) to final inspection. Each plate is checked for dimensions, surface defects, and mechanical properties. We are ISO9001:2015 certified and can arrange third-party inspection (e.g., SGS, BV) at your request.
Q8: What is the packing method for export?
A: Plates are packed in bundles with steel straps, interleaved with protective paper or plastic film. For sea freight, they are wrapped in waterproof materials and placed on strong wooden pallets or crates to prevent damage during transit.
Contact Hemaokang Steel today for a quotation or to discuss your specific requirements. We are committed to providing high-quality 904L stainless steel plates that meet your chemical equipment needs with reliability and value.
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