S31803 Duplex Stainless Steel Pipe 3-200mm OD with 620MPa Tensile Strength for Industrial Applications
Price:
Negotiable
MOQ:
1ton
Delivery Time:
5-15 days
Product Description
S31803 Duplex Stainless Steel Pipe Overview
S31803 duplex stainless steel pipe is a medium alloy duplex stainless steel with excellent chloride stress corrosion resistance. As the most widely used grade among duplex steels (2205, 2507, and S31803), it offers superior performance in demanding industrial applications.
Corrosion Resistance & Mechanical Properties
S31803 duplex stainless steel pipe delivers outstanding performance in acidic and chloride environments, effectively resisting corrosion from phosphoric acid, nitric acid, calcium nitrate, and copper carbonate.
Key Mechanical Properties
- Tensile Strength: ≥620 MPa
- Yield Strength: ≥450 MPa
- Elongation After Fracture: ≥25%
- Excellent resistance to pitting and crevice corrosion
- Superior performance in seawater, chemical, and petroleum environments
Applications
S31803 duplex stainless steel pipes are extensively used across multiple industries requiring high strength and corrosion resistance.
- Petrochemical Industry: Maintains strength and corrosion resistance under high temperature and pressure
- Marine Engineering: Excellent chloride corrosion resistance for marine environments
- Food Processing: Used in equipment and pipelines for transporting and storing food
- Medical Equipment & Aerospace: High-end applications requiring reliability and durability
Product Specifications
| Product Name | S31803 Stainless Steel |
|---|---|
| Type | Steel Pipe |
| Outer Diameter |
Round Tube: 3mm-200mm Square Tube: 10×10mm-100×100mm Rectangular Tube: 10×20mm-50×100mm |
| Wall Thickness | 0.6mm-6.0mm |
| Length | 1-10 meters, customizable lengths available |
| Surface Treatment | Black, Bright Polished, Rough Turning, Matt Surface, No. 4, BA |
| Production Technology | Hot Rolling, Cold Rolling |
| Edge Processing | Edging, Trimming |
Chemical Composition
| C | Si | Mn | Cr | Ni | Mo | N | S |
|---|---|---|---|---|---|---|---|
| ≤ 0.03 | ≤ 1 | ≤ 2 | 21-23 | 4.5-6.5 | 2.5-3.5 | 0.08-0.20 | 0.02 |
Application Scope
Food processing, textile operations, breweries, water treatment plants, oil and gas processing, fertilizers and pesticides, chemical applications, construction, pharmaceuticals, auto parts, and more.
Frequently Asked Questions
Q1. Can I order samples for stainless steel products?
Yes, we welcome sample orders for quality testing. Mixed samples are acceptable.
Q2. What is the lead time?
Samples: 3-5 days. Production: 7-15 days for orders over 28 tons.
Q3. Do you have minimum order quantity requirements?
Low MOQ - 1 piece for sample checking.
Q4. How do you ship products and what are delivery times?
Samples: DHL, UPS, FedEx, TNT (3-5 days). Mass production: sea freight preferred.
Q5. Can you print my logo on the product?
Yes, we provide OEM and ODM services.
Q6. Do you provide product warranties?
Yes, we offer 5-10 year warranties for our products.
Q7. How do you handle product failures?
Our products are manufactured under strict quality control with a defective rate below 0.2%.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Shandong Lanchuan Iron and Steel Co., LTD
Location
Room 801-2, Building 4, Zone 3, Hanyu Financial Business Center, High-tech Zone, Jinan City, Shandong Province
Contact Person
kerr