High-Strength Cold-Rolled Structural Steel · Enhanced Load-Bearing Capacity · Superior Surface Finish · Excellent Weldability · Global Supply
HRS Ferritic is a recognized supplier of high-quality steel products, serving global industries with precision-engineered materials sourced from valuable and certified mills. As a dependable IRS450 CR Plate / AISI IRS450 CR Plate Supplier, Stockist, and Importer, we focus on quality assurance, competitive sourcing, and timely delivery. With a strong logistics network and technical expertise, the company meets the evolving demands of infrastructure, automotive, energy, and heavy engineering sectors.
IRS450 CR Plate, also referred to as AISI IRS450 CR Plate, is a high-strength cold-rolled structural steel plate designed for applications requiring enhanced load-bearing capacity and durability. The "CR" (Cold Rolled) process improves surface finish, dimensional accuracy, and mechanical strength compared to hot-rolled products. IRS450 CR Plates are known for their higher yield strength than IRS350 grades, making them suitable for demanding structural and fabrication applications.
The performance of IRS450 CR Plate is achieved through controlled cold rolling, refining the grain structure for superior stress handling.
IRS450CR · Indian Railways / RDSO · ASTM A1010 / A709 · EN 10088
| Specification | Details |
|---|---|
| UNS | No official UNS code |
| EN | Structural stainless steels per EN10088 (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 |
Precision sheets, heavy plates, and shim sheets available in comprehensive thickness ranges.
Slitting coils, perforated coils, and thin foils starting from 0.05 mm.
Custom-cut blanks, circles, and rings tailored to specific fabrication needs.
High-strength chequered plates for industrial flooring and vehicle panels.
≤ 0.22% — Core element contributing to the high strength and hardness matrix.
1.00 – 1.60% — Enhances tensile strength and ensures toughness during forming.
≤ 0.40% — Adds critical oxidation resistance for high-temperature stability.
≤ 0.040% — Strictly controlled to maintain structural integrity and ductility.
520 – 650 MPa — Superior load-bearing capacity for heavy engineering.
≥ 450 MPa — Enhanced resistance to permanent deformation under load.
16 – 20% — Balanced ductility for complex fabrication and welding.
Good — Reliable performance in dynamic structural environments.
Choose from high-performance variants engineered for high-load structural projects.
Precision-balanced chemical elements deliver the requisite strength, weldability, and corrosion resistance for high-load railway and industrial use.
| Element | Composition (%) |
|---|---|
| Carbon (C) | ≤ 0.22 |
| Manganese (Mn) | 1.00 – 1.60 |
| Silicon (Si) | ≤ 0.40 |
| Phosphorus (P) | ≤ 0.040 |
| Sulfur (S) | ≤ 0.040 |
IRS450 CR aligns with major global structural stainless steel categories and high-strength standards.
| Standard / Country | Grade / Designation |
|---|---|
| Indian Railways / RDSO (India) | IRS450CR |
| ASTM A1010 / ASME A1010M (USA) | A1010 structural stainless (high‑strength) |
| ASTM A709 / ASME A709M (USA) | A709 Grade 50CR (corrosion‑resistant) |
| ASTM A480 / ASME A480M (USA) | Stainless sheet general requirements |
| UNS (USA) | Aligns with structural SS categories |
| EN (Europe) | Structural stainless‑steel family per EN10088 |
| DIN (Germany) / BS (UK) / JIS (Japan) | Structural stainless equivalents (via EN standards) |
| ISO (International) | Structural stainless family specifications |
| Comparable Structural SS Grades | 409M / 430 / 436L / 441 (structural ferritic SS) |
| Related Railway Grade | IRS350CR (lower yield variant) |
HRS Ferritic is committed to delivering consistent quality steel solutions for modern industries. With strong sourcing capabilities and a customer-centric approach, we ensure reliability, performance, and long-term value for all your structural steel needs.
Quick answers to common queries about IRS450 CR Plate / AISI IRS450 CR Plate.