2205 duplex stainless steel plate is a high-performance stainless steel material that combines both austenitic and ferritic structures. It exhibits excellent corrosion resistance and mechanical properties. It performs exceptionally well in resisting chloride stress corrosion cracking, pitting corrosion, and crevice corrosion. Additionally, it possesses high strength and good toughness, making it an ideal material choice for many demanding environments.
adopts advanced hot rolling, solution treatment and surface finishing processes to ensure that the surface of the plates is smooth, the thickness is precise, and the mechanical properties are stable. It can provide plates with thickness ranging from 3mm to 100mm, width ranging from 1000mm to 2500mm, and the longest length of up to 6000mm, or can be customized according to customer requirements. The surface conditions include acid washing, 2B, polishing, wire drawing, mirror finish, etc., which can meet various uses such as structural, decorative and industrial purposes.
Product Advantages
The strength is about twice that of traditional austenitic stainless steel.
Excellent resistance to chloride-induced stress corrosion
High impact toughness, maintaining stable performance even at low temperatures
Long service life and low maintenance cost
We can offer customized services such as cutting, bending, welding and surface treatment.
Chemical Composition (Typical, %)
| Grade | Cr | Ni | Mo | N | Mn | Si | C | P | S |
| 2205 | 21 – 23 | 4.5 – 6.5 | 2.5 – 3.5 | 0.14 – 0.20 | ≤ 2.0 | ≤ 1.0 | ≤ 0.030 | ≤ 0.030 | ≤ 0.020 |
Mechanical Properties
| Tensile Strength | Yield Strength (0.2% offset) | Elongation | Hardness |
| ≥ 620 MPa | ≥ 450 MPa | ≥ 25% | ≤ 290 HB |
Company Introduction
We is a leading manufacturer and supplier specializing in stainless steel materials, including plates, coils, sheets, and customized metal solutions. Located in Jiangsu, China, we operate with advanced production equipment and modern processing facilities, allowing us to deliver high-quality products that meet global standards.
Why Choose Us?
- Strong Manufacturing Base: Equipped with advanced rolling, cutting, polishing, and finishing lines.
- Wide Product Range: From standard stainless steel plates to special grades like 2205 Duplex Stainless Steel Plate, available in customized dimensions and finishes..
- Professional Team: Experienced engineers and sales staff providing technical guidance and fast customer support.
- At Jiangsu Cunrui, we not only supply high-performance stainless steel products but also provide long-term value to our clients through reliable service, flexible solutions, and competitive pricing. Our mission is to deliver durable materials and professional support that help customers succeed in their projects.
Quality Control & Certifications
Our Quality Control Process
Raw Material Inspection: All incoming materials are tested for chemical composition and mechanical properties before entering production.
In-Process Monitoring: During rolling, heat treatment, and finishing, we carry out dimensional checks, flatness control, and surface inspections.
Advanced Testing Equipment: We use ultrasonic testing, eddy current testing, tensile tests, and impact tests to verify product reliability.
Final Inspection: Each batch is issued with a Mill Test Certificate (MTC) that complies with ASTM, EN, and ISO requirements, ensuring full traceability.
Certifications & Standards
ISO 9001 Quality Management System – guarantees consistent quality across production.
SGS, BV, CE Certification – recognized by leading global inspection organizations.
Additional third-party inspection available upon customer request.
Our Commitment
We stand behind every plate we produce:
100% inspection before delivery
Guaranteed conformity with international standards
Immediate resolution of any quality-related concerns
Continuous improvement to exceed customer expectations
By maintaining rigorous quality control and holding internationally recognized certifications, Jiangsu Cunrui ensures that our 2205 Duplex Stainless Steel Plate is not only reliable but also trusted by customers worldwide.
Packaging & Logistics
Standard Packaging
- Protective Layers: Each plate is covered with waterproof paper and a PVC protective film to prevent moisture, rust, and scratches.
- Seaworthy Pallets: Plates are stacked on strong wooden pallets or wooden crates to maintain stability during handling and transportation.
- Edge Protection: Special corner and edge guards are used to prevent deformation or damage.
- Labeling: Each package is clearly labeled with product specifications, batch number, and shipping details for easy identification.
Customized Options
- Tailored packing according to client requirements
- Special protective coating for long-distance sea freight
- Bundled packaging for bulk orders
- Neutral or customer-branded packaging available upon request
Logistics & Delivery
- Flexible Transport Modes: We offer sea freight, air freight, rail, and express delivery depending on urgency and budget.
- Global Coverage: Strong partnerships with reliable logistics companies ensure smooth delivery
- On-Time Delivery: Comprehensive inventory and efficient production scheduling guarantee timely shipment.
- Tracking Services: Customers receive real-time updates on order status and shipment progress.
Customer Visits & After-Sales Support
- Quick Response: All inquiries will be replied to within 24 hours.
- Sample support: Provide samples for customers to inspect.
- Technical guidance: Provide suggestions for processing such as cutting, welding, and shaping.
- Order tracking: The entire process from production, quality inspection to shipment is fully traceable.
- Quality Assurance: Issues will be resolved promptly. We offer the option of returning or exchanging the product or providing a replacement.
FAQ
Q1: Compared with the conventional 304 or 316 stainless steel, what are the differences of 2205 duplex stainless steel plate?
A1: The strength of 2205 duplex stainless steel plate is almost twice that of 304 and 316. Moreover, it has stronger resistance to pitting and stress corrosion in chloride-containing environments. Therefore, it has more advantages in harsh environments such as seawater desalination and chemical storage tanks.
Q2: Do you offer cutting and custom processing services?
A2: Yes, in addition to standard-sized plates, we can also perform cutting, bending, drilling, welding and surface treatment according to customer drawings, ensuring that the project construction requirements are directly met.
Q3: Can 2205 duplex stainless steel plate be used under low or high temperatures?
A3: This material retains good toughness even at extremely low temperatures and maintains stable performance up to approximately 300℃. Therefore, it is highly suitable for extreme climates or complex working conditions.
Q4: Can I request a third-party inspection?
A4: Absolutely. Besides our own rigorous testing, customers can choose to have the inspection conducted by SGS, BV or any other third-party institution. We will cooperate fully and provide complete material certificates.
Q5: How long is your delivery cycle usually?
A5: If there is available stock, the goods can be dispatched within 7 to 10 days; for custom orders, the delivery time will be determined based on the complexity of the process and the quantity. It usually takes 15 to 30 days. We will provide a clear delivery date when the order is confirmed.
Q6: How do you ensure that the plates are not damaged during transportation?
A6: We use moisture-proof and rust-proof packaging, along with wooden pallets or wooden boxes for fixation, and reinforce protection at the edges. For ocean transportation, additional protective measures will be added to ensure that the 2205 duplex stainless steel plates arrive safely and intact at the customer's hands.
Q7: Can we place a small order for our first collaboration?
A7: Yes, we do offer small batch trial orders. This allows customers to conduct quality verification and application tests first, and only proceed with a long-term partnership if they are satisfied.
