Ti & Nb Stabilized Ferritic Grade · High-Temperature Strength · Superior Weldability · Oxidation Resistance · Global Supply
HRS Ferritic is a reliable SS 441 Sheet / AISI 441 Sheet / 1.4509 / SS 441HT Supplier, Stockist and Importer. With a strong global supply network and sourcing from certified mills, we support automotive, energy, construction and chemical processing industries with quality, traceability and timely delivery.
A titanium and niobium stabilized ferritic stainless steel offering excellent high-temperature strength, oxidation resistance and improved corrosion resistance compared to conventional ferritic grades like SS 409. Titanium and niobium bind carbon and nitrogen, preventing carbide precipitation and enhancing weldability, high-temperature stability and long-term corrosion resistance.
Each element in SS 441 plays a precise role in delivering exceptional high-temperature performance and corrosion resistance.
ASTM A240 · AISI 441 · UNS S44100
| Specification | Details |
|---|---|
| ASTM / AISI | ASTM A240 / AISI 441 |
| UNS | S44100 |
| EN / DIN | EN 1.4509 / 1.4509 |
| DIN Name | X2CrTiNb18 |
| JIS | SUS 44100 |
| 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.
17.5–18.5% — Forms stable passive oxide layer for corrosion and oxidation resistance.
Stabilized — Binds carbon and nitrogen, preventing intergranular corrosion.
Stabilized — Works with Ti to enhance high-temperature strength and resist sensitization.
≤ 0.03% — Very low; maintains ductility and weldability.
430–600 MPa — Good strength for high-temperature structural applications.
≥ 300 MPa — Consistent properties for forming operations.
≥ 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 dual stabilization with titanium and niobium in SS 441 binds carbon and nitrogen, preventing carbide precipitation at grain boundaries for superior weldability and high-temperature stability.
| Element | Composition (%) |
|---|---|
| Carbon (C) | ≤ 0.03 |
| Chromium (Cr) | 17.5 – 18.5 |
| Manganese (Mn) | ≤ 1.00 |
| Silicon (Si) | ≤ 1.00 |
| Titanium (Ti) | Stabilized |
| Niobium (Nb) | Stabilized |
| Phosphorus (P) | ≤ 0.040 |
| Sulfur (S) | ≤ 0.030 |
SS 441 is recognized across all major global standards with equivalent metallurgical designations.
| Standard | Equivalent Grade / Designation |
|---|---|
| AISI (USA) | 441 |
| UNS (USA) | S44100 |
| ASTM | ASTM A240 / ASME SA240 Type 441 |
| EN (Europe) | 1.4509 / X2CrTiNb18 |
| DIN (Germany) | X2CrTiNb18 |
| BS (UK) | — (no widely referenced BS designation) |
| JIS (Japan) | SUS 441 / SUS 44100 |
| ISO | Referenced as 1.4509 under ISO system |
| AFNOR (France) | — (no common AFNOR-specific grade) |
| GOST (Russia) | 08Х18Т (nearest ferritic equivalent) |
| UNI (Italy) | 1.4509 (aligns with EN numeric) |
| SS (Sweden) | 1.4509 (mirrors EN numbers) |
| KS (Korea) | Commonly referenced as ASTM/JIS 441 |
| IS (India) | Supplied as ASTM/EN 441 equivalent |
HRS Ferritic is dedicated to supplying high-performance SS 441 Sheet / AISI 441 / 1.4509 / 441HT products that meet international standards and industry-specific demands. Our focus on quality, reliability and long-term partnerships makes us a preferred global supplier.
Quick answers to common queries about SS 441 Sheet / AISI 441 / EN 1.4509 / 441HT.