Indian Reference Standard Metal · Superior Corrosion & Oxidation Resistance · High Temperature Stability · Global Supply
HRS Ferritic is a trustworthy IRSM sheets supplier, IRSM sheets stockist and IRSM sheets importer. We provide premium-grade IRSM 44-1997 sheets sourced from reliable, authentic suppliers worldwide, ensuring consistent quality for every industrial application.
A high-performance alloy sheet standardized to Indian Reference Standard Metal specifications, designed to withstand extreme temperatures, pressures and corrosive conditions across chemical, oil & gas, aerospace and structural industries.
Each element in IRSM 44-1997 plays a precise role in delivering exceptional durability and thermal performance.
ASTM A240 · ASME SA240 · UNS S40977
| Specification | Details |
|---|---|
| ASTM / ASME | ASTM A240 / ASME SA240 |
| UNS | S40977 |
| EN / DIN | 1.4003 |
| ISO | X2CrNi12 |
| JIS | SUS 410L |
| Thickness Range | 0.5 mm to 100 mm |
| Standard Widths | 1000, 1219, 1250, 1500, 1800, 2000, 2500, 3000, 3500 mm |
| Standard Lengths | 2000, 2440, 2500, 3000, 5800, 6000 mm |
| 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 sheet products in various thicknesses for industrial 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.
17–19% — Enhances corrosion resistance, hardness and strength.
9–11% — Improves toughness and outdoor corrosion resistance.
0.08% max — Controlled for strength and good weldability.
Added — Forms a protective oxide layer for atmospheric corrosion resistance.
520–750 MPa — High strength for demanding structural applications.
250–500 MPa — Consistent properties for forming operations.
20–35% — Excellent ductility for fabrication.
160–220 HB — Consistent machinability and surface quality.
Choose from a wide range of finishes based on your application and precision requirements.
The copper addition in IRSM 44-1997 significantly enhances atmospheric corrosion resistance by forming a protective oxide layer.
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.08 max |
| Manganese (Mn) | 1.0 – 1.5 |
| Phosphorus (P) | 0.03 max |
| Sulfur (S) | 0.03 max |
| Chromium (Cr) | 17 – 19 |
| Nickel (Ni) | 9 – 11 |
| Molybdenum (Mo) | 0.5 – 0.7 |
IRSM 44-1997 is recognized across all major global standards with equivalent metallurgical designations.
| Standard | Equivalent Grade |
|---|---|
| Indian Railways (IRSM) | IRSM 44‑1997 |
| IS | IR CK‑201 |
| Stainless Steel (India) | SS 409M |
| EN | X2CrNi12 (EN 1.4003) |
| ISO | 1.4003 |
| DIN | W.Nr. 1.4003 |
| UNS | UNS S40977 |
| Alternative Common Name | 3CR12 (utility ferritic grade) |
| Alternative Designation | F12N / F12NB |
| JIS | SUS 409M equivalent |
HRS Ferritic is a trusted partner in industries that require IRSM 44-1997 sheets. We combine premium materials with expert service and a robust distribution network to meet every project requirement.
Quick answers to common queries about IRSM 44-1997 Sheet.