Duplex 2205 (S32205/S31803) Stainless Steel Coil & Precision Strip

Stainless Steel Coils & Precision Strips – Wuxi Xinshanhu Steel

Grades: 304, 304L, 316L, 430, 201, 2205
Types: Cold Rolled Coil, Hot Rolled Coil, Precision Slitted Strip
Size Range: Thickness 0.05mm – 12mm | Width 3mm – 2000mm
Surface Finishes: 2B, BA, No.4, Hairline (HL), Mirror, Anti-fingerprint (AFP)
Applications: Automotive components, stamping parts, pipe manufacturing, heat exchangers, hardware
Features: Precision slitting with burr-free edges, uniform thickness tolerances, and superior deep-drawing quality

Desciption
Company

Double the Strength, Superior Corrosion Resistance for Harsh Environments

Product Portfolio

Grades: Duplex 2205 (S32205, S31803), Super Duplex 2507 (S32750)
Types: Hot Rolled Coil, Cold Rolled Precision Strip
Finish Options: No.1, 2B, No.4, HL
Edge: Precision Slit Edge (Burr-free), Mill Edge

Technical Specification Matrix

Parameters	Precision Slitted Strip	Standard Wide Coil
Thickness	0.1mm – 3.0mm	3.0mm – 12.0mm
Width	3mm – 600mm	1000mm / 1219mm / 1500mm
Yield Strength	≥ 450 MPa (Double of 316L)	≥ 450 MPa
PREN Value	32–40 (Pitting Resistance)	32–40
Structure	~50% Ferrite / ~50% Austenite	~50% Ferrite / ~50% Austenite

Why Duplex 2205 is the Ultimate Choice for Industrial Projects?

Exceptional Mechanical Strength: Duplex 2205 provides roughly twice the yield strength of standard austenitic stainless steels (304/316L). This allows designers to reduce wall thickness, significantly saving material costs and project weight.
High Resistance to Stress Corrosion Cracking (SCC): Unlike 300 series stainless steel, 2205 is highly resistant to chloride stress corrosion cracking, making it essential for heat exchangers and tanks in saline or chemical environments.
Superior Pitting & Crevice Corrosion Resistance: With high levels of Chromium, Molybdenum, and Nitrogen, 2205 outperforms 316L in most corrosive media, especially in sea water and acidic environments.
Lower Thermal Expansion: It has a lower coefficient of thermal expansion than austenitic steels, providing better structural stability in fluctuating temperature cycles.

Advanced In-House Processing Capabilities

Precision Slitting Technology: Duplex steel is significantly harder to process. Our high-torque slitting lines are specifically optimized for 2205, delivering precision strips as narrow as 3mm with clean, burr-free edges and tight width tolerances.
Custom Surface Finishing: We provide specialized mechanical polishing for industrial applications, ensuring the surface meets specific roughness (Ra) requirements for chemical and pharmaceutical sectors.
Visual Quality Assurance: We provide HD "immersive" inspection videos for every batch. You can remotely verify the material's surface integrity, gauge measurements, and edge quality before it leaves our facility.

Global Supply & International Compliance

100% Traceable Quality: Every shipment is accompanied by a comprehensive Mill Test Report (MTR) according to EN 10204 3.1. We guarantee the chemical composition (Cr, Ni, Mo, N) meets international ASTM/JIS standards.
Expert Export Documentation: Our team handles all necessary export paperwork, ensuring seamless customs clearance for B2B clients in global markets.
Verified Packaging: Standard sea-worthy packaging (Eye to Sky/Eye to Wall) using reinforced pallets and high-grade moisture protection to prevent salt-air corrosion during maritime transit.

Request a Quote for Duplex 2205 – Get Bulk Pricing & Technical Support

Company Profile

Wuxi Xinshanhu Steel Co., Ltd. is an eleven-year-old Chinese alloy manufacturer with rich production experience, well-trained workers and excellent engineers. Our factory has a mature production system and multiple steel production lines. Including Cold-rolled flat cutting machine, Hot-rolled flat cutting machine; High-speed flat cutting machine; Precision high-speed slitting machine, Ultra high pressure water jet cutting machine; Sheet fiber laser cutting machine; Thin-walled cylinder longitudinal seam automatic welding machine and Machine shop. Our products include Hastelloy, Incoloy, Inconel, Monel, Nickel Alloy, Nickel Alloy, Titanium Alloy, Haynes, etc. The supply styles include plates, strips, rods, wires, forgings, bare rods, welding materials, flanges, etc. We support custom-made according to drawings.

Certificate Qualifications Owned By The Compan

FAQ

Q1. Where is your factory?

A1: Our company’s processing center is located in Wuxi, Jiangsu, China. It is well equipped with kinds of machines, such as laser cutting machine, mirror polishing machine and so on. We can provide a wide range of personalized services according to the customers’ needs.

Q2. What are your company's main products?

A2: Our products include Hastelloy, Incoloy, Inconel, Monel, Nickel Alloy, Nickel Alloy, Titanium Alloy, Haynes, etc.The supply styles include plates, strips, rods, wires, forgings, bare rods, welding materials, flanges, etc. We support custom-made according to drawings.

Q3. How do you control quality?

A3: Mill Test Certification is supplied with shipment, Third Party Inspection is available.

Q4. What are the advantages of your company?

A4: We have many professionals, technical personnel, more competitive prices, and best after-sales service than other alloy companies.

Q5. How many countries have you already exported to?

A5: Exported to more than 50 countries mainly from America, Russia, UK, Kuwait, Egypt, Turkey, Jordan, India, etc.

Q6. Do you provide samples? is it free or extra?

A6: Yes, we could offer the sample for free charge but do not pay the cost of freight.