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Help Center304L Stainless Steel Pipe Cold Drawn Seamless 6mm-219mm OD
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Hemaokang Steel (Shandong) Co., Ltd. is a trusted manufacturer and exporter of high-quality stainless steel pipes. Our 304L Stainless Steel Pipe Cold Drawn Seamless offers superior corrosion resistance, precise dimensions, and excellent mechanical properties for demanding applications. With an annual export value of US$50–100 million and ISO9001 certification, we ensure every pipe meets international standards.
This product is cold drawn to achieve tight tolerances, smooth surface finish, and enhanced strength. Available in outer diameters from 6mm to 219mm, it is ideal for industries requiring high purity and reliability, such as petrochemical, food processing, and pharmaceutical.
Our 304L grade has lower carbon content than 304, reducing the risk of intergranular corrosion after welding. Combined with the seamless cold-drawn process, the pipe offers uniform wall thickness and excellent pressure resistance.
Key Features & Technical Specifications
- Material Grade: 304L (UNS S30403) – low carbon, high corrosion resistance
- Process: Cold drawn seamless – no weld seam, uniform structure
- OD Range: 6mm to 219mm – versatile for various systems
- Wall Thickness: Customizable from 0.5mm to 12mm (or as per request)
- Surface Finish: Pickled, annealed, or bright – options available
- Standard Compliance: ASTM A312 / ASME SA312, EN 10216-5 (optional)
- Certification: ISO9001:2015 quality management system
- Packaging: Plastic caps, bundles, or wooden crates for export
| Parameter | Value |
|---|---|
| Outer Diameter | 6mm – 219mm |
| Wall Thickness | 0.5mm – 12mm (custom) |
| Length | 6m standard, custom length available |
| Surface Roughness | Ra ≤ 0.8µm (bright finish) |
| Yield Strength | ≥ 170 MPa |
| Tensile Strength | ≥ 485 MPa |
Advantages & Customer Benefits
- Excellent Corrosion Resistance – 304L withstands acidic and chloride environments, ideal for chemical and marine applications.
- Seamless Construction – No weld weak points, ensuring leak-proof performance under high pressure.
- Precision Dimensions – Cold drawing ensures tight tolerances (±0.1mm on OD), reducing installation time.
- Easy Weldability – Low carbon content minimizes carbide precipitation, making post-weld heat treatment unnecessary.
- Customizable Sizes – We can produce non-standard diameters and wall thicknesses to meet your project requirements.
- Global Logistics – With a team of 51–100 employees and annual export value over US$50 million, we deliver to markets worldwide including North America, Europe, and Southeast Asia.
Trust Hemaokang Steel – Our company, established in 2025, has quickly grown into a reliable supplier for the global stainless steel pipe market. We hold ISO9001 certification, ensuring strict quality control from raw material to finished product. Our main markets cover six continents, and we have successfully served clients in demanding industries such as oil & gas, water treatment, and food processing.
We offer competitive pricing, flexible order quantities, and professional technical support. Whether you need a small batch for a prototype or large quantities for a pipeline project, we are ready to meet your expectations.
Contact us today to request a quote or discuss your specific requirements. Experience the quality and reliability of Hemaokang Steel 304L cold drawn seamless pipes.
Frequently Asked Questions (FAQ)
-
What is the difference between 304 and 304L stainless steel pipe?
304L has lower carbon content (max 0.03% vs 0.08%), which reduces the risk of intergranular corrosion after welding. It is preferred for applications requiring welding without subsequent heat treatment. -
Can you supply pipes with outer diameter larger than 219mm?
Our standard range is 6–219mm for cold drawn seamless. For larger diameters, we offer hot finished seamless or welded pipes – please inquire with our sales team. -
What is the typical lead time for an order?
Lead time depends on quantity and specifications. For standard sizes, it is usually 15–25 days after deposit. Custom sizes may take 30–40 days. -
Do you provide third-party inspection certificates?
Yes, we can arrange inspection by SGS, BV, or other independent agencies at the buyer's cost. ISO9001 certification is provided as standard. -
What surface treatments are available?
We offer pickled & annealed, bright, or polished finish. The surface can be customized to meet specific cleanliness or aesthetic requirements. -
How do you ensure the pipes are rust-free during transit?
We apply anti-rust oil, plastic caps, and protective wrapping. For long sea shipments, we use VCI paper and wooden crates to prevent moisture damage. -
Can you provide small diameter pipes (e.g., 6mm OD) with thin wall?
Yes, our cold drawn process allows precise control. We can produce 6mm OD with wall thickness as low as 0.5mm. -
What is your minimum order quantity (MOQ)?
MOQ is typically 500 kg for standard sizes. For non-standard or small diameters, MOQ may be lower – please contact us for details.
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