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Help Center316L Stainless Steel Welded Pipe OD 6mm-219mm Wall Thickness 1.5mm-12mm Length 6m
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Hemaokang Steel (Shandong) Co., Ltd. proudly presents our premium 316L Stainless Steel Welded Pipe – a product designed to meet the most demanding industrial requirements. With an outer diameter range of 6mm to 219mm, wall thickness from 1.5mm to 12mm, and a standard length of 6 meters, this pipe offers exceptional corrosion resistance, high strength, and excellent weldability. Manufactured in our ISO9001-certified facility in Liaocheng, Shandong, China, each pipe is rigorously tested to ensure consistent quality and performance. Whether you need it for chemical processing, marine applications, or food industry equipment, our 316L welded pipe delivers reliability and longevity.
Our production process employs advanced TIG and plasma welding techniques, combined with strict quality control at every stage. The result is a pipe with smooth internal and external surfaces, uniform wall thickness, and minimal residual stress. We understand that in B2B environments, every millimeter matters – that’s why we offer customizable dimensions and surface finishes (pickling, polishing, or annealed) to suit your specific needs.
Key Product Features
- Superior Corrosion Resistance: 316L grade contains molybdenum, offering excellent resistance to chlorides, acids, and marine environments – ideal for harsh chemical and offshore applications.
- Wide Size Range: Outer diameter from 6mm (small bore) to 219mm (large bore), with wall thickness options from 1.5mm to 12mm – suitable for both low-pressure and high-pressure systems.
- Excellent Weldability: Low carbon content (max 0.03%) prevents carbide precipitation during welding, maintaining corrosion resistance even in welded zones.
- Precision Manufacturing: Tight tolerances on OD, WT, and straightness (≤0.5mm/m) ensure easy installation and compatibility with standard fittings.
- Certified Quality: ISO9001:2015 certified production, with each batch traceable and tested for chemical composition, mechanical properties, hydrostatic pressure, and nondestructive inspection.
- Customizable Lengths: While standard length is 6m, we can supply cut-to-length sizes (e.g., 3m, 4m, 12m) upon request with short lead times.
Technical Specifications
| Parameter | Value / Range |
| Material Grade | 316L (UNS S31603) |
| Outer Diameter | 6 mm – 219 mm |
| Wall Thickness | 1.5 mm – 12 mm |
| Standard Length | 6 m (optional: 3 m, 4 m, 12 m, or custom) |
| Applicable Standard | ASTM A312, ASTM A358, EN 10217-7 |
| Surface Finish | Pickled, Polished (180–600 grit), Annealed |
| Tensile Strength | ≥ 485 MPa |
| Yield Strength | ≥ 170 MPa |
Advantages & Customer Benefits
- Reduced Maintenance Costs: The excellent corrosion resistance of 316L significantly extends service life in aggressive environments, reducing replacement frequency and downtime.
- Versatile Applications: Suitable for high-temperature and cryogenic services (up to 800°C in oxidizing environments, down to -196°C).
- Easy Fabrication: Can be cut, threaded, flanged, and welded with standard procedures – no special preheating required.
- Global Shipping: With annual export value of US$50-100 million, we have established logistics networks to deliver to North America, Europe, Asia, Africa, Oceania, and the Middle East within 15–30 days.
- Competitive Pricing: Direct factory supply with no middlemen, offering cost-effective solutions without compromising quality.
At Hemaokang Steel, we are committed to delivering excellence. Our experienced team of 51–100 employees works tirelessly to ensure that every pipe leaving our warehouse meets the highest standards. We have supplied products to major projects in oil & gas, chemical processing, desalination, and food & beverage industries across the globe. Our ISO9001 certification is a testament to our consistent quality management system.
Why choose Hemaokang Steel? Since our establishment in 2025, we have quickly grown into a reliable partner for international buyers. With an annual export value exceeding US$50 million, we have the capacity and expertise to handle large-volume orders efficiently. Our location in Liaocheng, Shandong – a renowned steel hub in China – gives us access to high-quality raw materials and advanced manufacturing resources. We offer flexible payment terms, free samples for evaluation, and dedicated after-sales support.
Contact us today for a quotation or technical consultation. Let us help you find the perfect 316L stainless steel welded pipe solution for your project. Order now and experience the Hemaokang difference!
Frequently Asked Questions (FAQ)
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Q: What is the difference between 316 and 316L stainless steel pipe?
A: 316L has a lower carbon content (max 0.03%) compared to 316 (max 0.08%). This reduces the risk of carbide precipitation during welding, making 316L preferred for welded applications where corrosion resistance is critical. -
Q: Can you provide pipes with a wall thickness outside the 1.5-12mm range?
A: While our standard range is 1.5mm to 12mm, we can customize wall thickness up to 16mm or down to 1.0mm for special orders. Please contact us with your specific requirements. -
Q: What surface finishes are available?
A: We offer pickled (2B), polished (bright or mirror finish up to 600 grit), and annealed finishes. The pickled finish is standard; polishing is available upon request at an additional cost. -
Q: Do you provide third-party inspection certificates?
A: Yes, we can arrange third-party inspections by SGS, BV, or TUV at the buyer’s cost. Mill test certificates (MTC) are included with each shipment free of charge. -
Q: What is the minimum order quantity (MOQ)?
A: For standard sizes (OD 6–219mm, WT 1.5–12mm), the MOQ is 100 kg. For non-standard sizes or custom finishes, the MOQ may be 500 kg. Small trial orders are welcome. -
Q: How long does delivery take?
A: For standard sizes, we ship within 7–15 working days after order confirmation. For customized products, lead time is 15–25 working days, depending on quantity. -
Q: Are these pipes suitable for high-pressure applications?
A: Our 316L welded pipes are manufactured per ASTM A312 and can withstand working pressures up to 3000 psi (depending on OD and WT). For high-pressure systems, we recommend selecting a thicker wall and verifying with our engineering team. -
Q: Do you offer free samples?
A: Yes, we provide free samples (up to 1 meter length) for quality evaluation. The buyer only needs to pay for shipping costs.
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