Exceptional Strength & Durability · Excellent Corrosion Resistance · Superior Weldability & Formability · Global Industrial Supply
HRS Ferritic is a reliable Duplex 2205 UNS 31803 Coils Supplier, Duplex 2205 UNS 31803 Coils Stockist, and Duplex 2205 UNS 31803 Coils Importer in India. We offer high-quality Duplex 2205 stainless steel coils sourced from trusted and certified manufacturers worldwide. With a focus on durability, corrosion resistance, and timely delivery, we make sure that all products meet international standards. As a dependable Duplex 2205 UNS 31803 Coils Stockist, we maintain a comprehensive stock and provide customized solutions for industries across various sectors.
What are Duplex 2205 UNS 31803 Coils? Duplex 2205 UNS 31803 is a high-performance stainless steel alloy, primarily composed of a mix of austenitic and ferritic structures. This unique composition gives Duplex 2205 its exceptional strength, excellent corrosion resistance, and higher stress and pressure tolerance. It’s particularly known for being twice as strong as the conventional 304 stainless steel.
Duplex 2205 functions by balancing its ferritic and austenitic microstructure, which contributes to its superior mechanical strength and excellent resistance to stress corrosion cracking, especially in chloride-rich environments. The high chromium content forms a passive oxide layer, providing the material with a protective barrier against corrosion. The alloy’s high molybdenum content further enhances its resistance to pitting, crevice corrosion, and general corrosion, particularly in acidic environments.
Key alloying elements that contribute to the high-performance balanced structure of Duplex 2205.
ASTM A240 · ASME SA240 · UNS S31803 · EN 1.4462 · JIS SUS 329J3L
| Specification | Details |
|---|---|
| ASTM / ASME | ASTM A240 / ASME SA240 (Plate, Sheet, Strip, and Coils) |
| UNS | UNS S31803 |
| EN | 1.4462 or X2CrNiMoN22-5-3 |
| DIN | 1.4462 or X2CrNiMoN22-5-3 |
| ISO | ISO 17781 |
| JIS | SUS 329J3L |
| Product Form | Coils / Sheets / Plates |
| Thickness Range | 0.5 mm to 100 mm |
| Standard Widths | 1000 mm, 1219 mm, 1250 mm, 1500 mm, 1800 mm, 2000 mm, 2500mm, 3000mm, 3500mm, etc |
| Standard Lengths | 2000 mm, 2440 mm, 2500 mm, 3000 mm, 5800 mm, 6000mm, etc |
| Custom Cut | Available Width and Length as per customer requirement |
| Surface Finish | Hot Rolled (HR), Cold Rolled (CR), Annealed & Pickled (AP) |
| Supply Condition | Solution Annealed |
| Cutting Methods | Plasma, Laser, Waterjet, Oxy Propane |
| Packaging | Bundled, Wooden Plates, Bubble wraps, Customized |
Precision sheets, heavy plates, and shim sheets maintained in stock.
Slitting coils, perforated coils, and thin foils from 0.05 mm available.
Circles, rings, custom-cut blanks, and chequered (tread) plates.
Mill edge, slit edge, round edge, and square edge available.
21.0 – 23.0% — Crucial for oxidation and corrosion resistance.
4.5 – 6.5% — Enhances toughness and corrosion resistance.
2.5 – 3.5% — Improves resistance to pitting and crevice corrosion.
0.08 – 0.20% — Enhances strength and resistance to corrosion.
≥ 620 MPa — High performance strength for demanding loads.
≥ 450 MPa — Twice as strong as conventional 304 grade.
≥ 25% — Good ductility for industrial formability.
≤ 290 HB — Optimized hardness for structural reliability.
Multiple processing conditions to meet specific industrial requirements.
Standard chemical analysis for UNS S31803 duplex stainless steel coils.
| Element | Composition (%) |
|---|---|
| Carbon (C) | ≤ 0.030 |
| Manganese (Mn) | ≤ 2.00 |
| Silicon (Si) | ≤ 1.00 |
| Phosphorus (P) | ≤ 0.030 |
| Sulfur (S) | ≤ 0.020 |
| Chromium (Cr) | 21.0 – 23.0 |
| Nickel (Ni) | 4.5 – 6.5 |
| Molybdenum (Mo) | 2.5 – 3.5 |
| Nitrogen (N) | 0.08 – 0.20 |
| Iron (Fe) | Balance |
As a leading supplier and stockist, we offer competitive pricing based on thickness, width, and surface finish.
Cross-reference table for international designations of Duplex 2205.
| Standard | Designation / Grade |
|---|---|
| UNS | S31803 |
| EN / European | 1.4462 / X2CrNiMoN22-5-3 |
| ASTM / ASME | A240 / SA240 Type 2205 |
| DIN (Germany) | 1.4462 |
| JIS (Japan) | SUS329J3L |
| GB / China | Z3CN22-5N |
| AFNOR / France | Z3CND22.05 |
| NORSOK (Norway) | UNS S31803 |
| ISO | ISO 17781 |
HRS Ferritic is dedicated to delivering high-quality Duplex 2205 coils to meet the demands of various industries, ensuring long-lasting performance and reliability. We source global materials ensuring competitive pricing and unmatched quality for industry needs.
Quick answers to common queries about Duplex 2205 UNS 31803 Coils.