12% Chromium Ferritic Grade · RDSO Compliant · Excellent Corrosion Resistance & Weldability · Railway & Infrastructure Applications
HRS Ferritic specializes in high-performance stainless steel products. We are a reliable Ferritic Steel Plates Supplier, Stockist and Importer providing quality solutions to diverse industries. Our materials are sourced from certified and valuable global manufacturers, ensuring every plate complies with RDSO and other international standards.
X2CrNi12 RDSO Spec plates are ferritic stainless steel plates manufactured according to RDSO specifications. Made with chromium as the main alloying element and minimal nickel, they offer excellent corrosion resistance and good weldability. They are particularly suited for heavy engineering, railway and infrastructure applications due to their ferritic microstructure.
Each element in X2CrNi12 plays a precise role in delivering excellent corrosion resistance, toughness and structural performance.
ASTM A240 · ASME SA240 · UNS S40977 · EN 1.4003
| Specification | Details |
|---|---|
| ASTM / ASME | ASTM A240 / ASME SA240 (Plate, Sheet, and Strip) |
| UNS | UNS S40977 |
| EN | 1.4003 |
| DIN | 1.4003 |
| ISO | ISO X2CrNi12 |
| JIS | Comparable reference (e.g., 3Cr12) |
| Product Form | Plates / Sheets |
| Thickness Range | 0.5 mm to 100 mm |
| Standard Widths | 1000 mm, 1219 mm, 1250 mm, 1500 mm, 1800 mm, 2000 mm, 2500 mm, 3000 mm, 3500 mm, etc |
| Standard Lengths | 2000 mm, 2440 mm, 2500 mm, 3000 mm, 5800 mm, 6000 mm, etc |
| 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 Wrap, Customized |
High-quality flat plate products in various thicknesses for industrial and railway applications.
Seamless and welded pipes for high-temperature and corrosion-resistant use.
Modified Austenitic & Ferritic SS with excellent mechanical properties.
Precision-rolled coils and strips for specialized forming operations.
11 – 13% — Core element providing corrosion, oxidation resistance and hardness.
≤ 1.0% — Enhances toughness and overall corrosion resistance.
≤ 0.03% — Low level ensures good weldability and corrosion resistance.
Balance — Base metal providing structural strength and ferritic microstructure.
380–550 MPa — Exceptional for demanding structural applications.
≥ 220 MPa — Consistent properties for load-bearing applications.
≥ 20% — Excellent ductility for fabrication.
≤ 200 HB — Consistent machinability and surface quality.
Choose from a wide range of finishes based on your application and precision requirements.
The grade contains approximately 11–13% chromium with very low carbon content to enhance corrosion resistance and weldability, with minimal nickel for improved toughness.
| Element | Composition (%) |
|---|---|
| Carbon (C) | ≤ 0.03 |
| Chromium (Cr) | 11 – 13 |
| Nickel (Ni) | ≤ 1.0 |
| Manganese (Mn) | ≤ 1.0 |
| Silicon (Si) | ≤ 1.0 |
| Phosphorus (P) | ≤ 0.04 |
| Sulfur (S) | ≤ 0.03 |
X2CrNi12 is recognized across all major global standards with equivalent metallurgical designations.
| Standard | Equivalent Grade |
|---|---|
| RDSO | X2CrNi12 (Spec CK201) |
| EN | X2CrNi12 (1.4003) |
| DIN | W.Nr. 1.4003 |
| UNS | UNS S40977 |
| ISO | X2CrNi12 / 1.4003 |
| BS | X2CrNi12 |
| JIS | Comparable reference (e.g., 3Cr12) |
| AFNOR | X2CrNi12 |
| GOST | Approx. equivalent 3Cr12 family grades |
With decades of experience in the industry, HRS Ferritic is a reliable ferritic stainless steel plate Supplier and Importer. We guarantee performance, durability and value on every project with strict RDSO compliance and quality control.
Quick answers to common queries about X2CrNi12 RDSO Spec CK201 Plates.