Cold Rolled Structural Steel · High Strength-to-Weight Ratio · Superior Surface Finish · Excellent Weldability & Formability · Global Supply
HRS Ferritic is a reputed name in the global steel industry, known for supplying high-quality carbon steel and alloy steel products sourced from valuable and certified mills. As a reliable IRS350 CR Plate Supplier, AISI IRS350 CR Plate Stockist, and IRS350 CR Plate Importer, we cater to a wide range of industrial sectors, including infrastructure, automotive, energy, and heavy engineering. Our commitment to quality, competitive pricing, and timely delivery makes us a preferred partner for customers worldwide.
IRS350 CR Plate, also referred to as AISI IRS350 CR Plate, is a cold-rolled structural steel plate known for its excellent strength, formability, and surface finish. "CR" stands for Cold Rolled, indicating that the plate undergoes cold reduction after hot rolling, which enhances dimensional accuracy and mechanical properties. The performance of the IRS350 CR Plate is derived from its cold rolling process — after hot rolling, the steel is cold reduced at room temperature, which refines the grain structure and improves tensile and yield strength, enhancing surface smoothness, flatness, and thickness tolerance.
Each element in IRS350 CR plays a precise role in delivering strength, formability, and cold-forming performance.
IRS350CR · Indian Railways / RDSO · ASTM A1010 / A709 · EN 10088-2
| Specification | Details |
|---|---|
| UNS | No official UNS code |
| EN | Structural stainless steels per EN10088-2 (no single number) |
| DIN | Structural stainless equivalents |
| ISO | Structural stainless family (ISO structural SS, no single number) |
| JIS | Structural stainless equivalents |
| 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 |
| Custom Width Cut | Available as per customer requirement |
| Custom Length Cut | Available 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 |
High-quality flat plate 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.
≤ 0.20% — Enhances hardness and tensile strength for cold-forming performance.
0.80 – 1.50% — Improves toughness, hardenability, and resistance to deformation.
≤ 0.40% — Contributes to strength and stability during heat treatment.
≤ 0.040% — Controlled residual element to maintain ductility and toughness.
350–450 MPa — Suitable for demanding structural applications.
≥ 350 MPa — Consistent properties for forming operations.
18–22% — Good ductility for cold-forming and fabrication.
Good — Reliable performance under dynamic loading conditions.
Choose from a wide range of finishes based on your application and precision requirements.
The cold rolling process refines the grain structure of IRS350 CR, improving tensile strength, yield strength, surface smoothness, flatness, and thickness tolerance for precision applications.
| Element | Composition (%) |
|---|---|
| Carbon (C) | ≤ 0.20 |
| Manganese (Mn) | 0.80 – 1.50 |
| Silicon (Si) | ≤ 0.40 |
| Phosphorus (P) | ≤ 0.040 |
| Sulfur (S) | ≤ 0.040 |
IRS350 CR is recognized across major global standards with equivalent structural steel designations.
| Standard | Grade |
|---|---|
| Indian Railways / RDSO (India) | IRS350CR |
| ASTM A1010 / ASME A1010M (USA) | A1010 SS high-strength structural stainless |
| ASTM A709 / ASME A709M (USA) | Grade 50CR (structural corrosion-resistant) |
| ASTM A480 / ASME A480M (USA) | Structural stainless plate general requirements |
| UNS (USA) | No official UNS code; aligned with structural stainless systems |
| EN (Europe) | Structural stainless steels per EN10088-2 (no single number) |
| DIN (Germany) | Structural stainless equivalents (aligned via EN) |
| BS (United Kingdom) | Structural stainless equivalents |
| JIS (Japan) | Structural stainless equivalents |
| ISO (International) | Structural stainless family (ISO structural SS, no single number) |
| Comparable Ferritic/Martensitic SS | 409M / 430 / 436L / 441 (structural SS references) |
| Comparable Railway Grade | IRS450CR (higher strength variant) |
HRS Ferritic is committed to delivering high-performance steel solutions tailored to modern industrial needs. With strong logistics, global sourcing, and a customer-first approach, we ensure consistent quality and long-term partnerships. Get in touch with us today for premium IRS350 CR Plate solutions and dependable supply.
Quick answers to common queries about IRS350 CR Plate / AISI IRS350 CR Plate.