High Chromium Ferritic Grade · Excellent Oxidation Resistance · Up to 1100 °C · Global Supply
HRS Ferritic, a trusted name in the stainless steel industry worldwide, is known for providing premium-quality ferritic products to diverse industries. We are a trusted SS 446 Sheet Supplier, Stainless Steel 446 Sheet Stockist, and AISI 446 Sheet Importer. We only source materials from certified and valuable mills in order to ensure durability, superior performance and compliance with international standards. Our supply chain, technical knowledge, and customer-centric attitude allow us to cater to domestic and international markets consistently and reliably.
SS 446 sheet is a ferritic stainless steel with a high chromium content of approximately 22–27%, well-known for its high temperature strength and excellent oxidation resistance. Its ferritic structure provides superior resistance to thermal fatigue and low thermal expansion, making it ideal for heat-intensive applications and corrosive environments.
Each element in SS 446 plays a precise role in delivering exceptional high-temperature performance and corrosion durability.
ASTM A240 · AISI 446 · UNS S44600
| Specification | Details |
|---|---|
| ASTM / AISI | ASTM A240 / AISI 446 (Plate, Sheet, and Strip) |
| UNS | UNS S44600 |
| EN / DIN | EN 1.4762 / DIN 1.4762 |
| ISO | ISO 683-13 X10CrAlSi25 |
| JIS | SUS 446 |
| Product Form | Sheets / Plates |
| 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 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.
23.0 – 27.0% — Primary element for oxidation and corrosion resistance at high temperatures.
≤ 0.20% — Controlled to maintain ductility and weldability.
≤ 1.0% — Enhances oxidation resistance and high-temperature performance.
Balance — Base element forming the ferritic structure and overall strength.
500 MPa — Reliable for high-temperature structural applications.
280 MPa — Consistent properties for forming and fabrication.
18% — Adequate ductility for industrial forming.
≤ 230 HB — Ensures consistent machinability and surface quality.
We are the leading SS 446 Sheet / AISI 446 Sheet Stockist. We maintain a large inventory for immediate delivery.
The high chromium content of SS 446 forms a stable protective chromium-oxide passive layer, ensuring corrosion and oxidation resistance even at elevated temperatures.
| Element | Percentage (%) |
|---|---|
| Chromium (Cr) | 23.0 – 27.0 |
| Carbon (C) | ≤ 0.20 |
| Manganese (Mn) | ≤ 1.5 |
| Silicon (Si) | ≤ 1.0 |
| Phosphorus (P) | ≤ 0.04 |
| Sulfur (S) | ≤ 0.03 |
| Iron (Fe) | Balance |
SS 446 is recognized across all major global standards with equivalent metallurgical designations.
| Standard | Designation / Equivalent |
|---|---|
| AISI (USA) | 446 |
| UNS (USA) | S44600 |
| ASTM / ASME (USA) | A240 Type 446 / SA240 446 |
| SAE (USA) | 51446 (J405) |
| EN (Europe) | 1.4762 / X10CrAlSi25 / X10CrAlSi24 |
| DIN (Germany) | 1.4762 |
| BS (UK) | 446S21 |
| AFNOR (France) | Z10CAS25 / Z12CAS25 |
| JIS (Japan) | SUS 446 |
| GOST (Russia) | 15Х25Т / 15X25T |
| UNI (Italy) | X10CrAlSi25 |
| SS (Sweden) | 2321 (approx.) |
| ISO | ISO 683-13 X10CrAlSi25 |
HRS Ferritic, a global leader in ferritic stainless products, is a manufacturer, distributor, stockist and importer with years of experience. Committed to quality, we deliver solutions that meet customer expectations and international standards. Contact HRS for SS 446 sheet / AISI 446 sheet solutions tailored to your specific needs.
Quick answers to common queries about SS 446 Sheet / AISI 446 Sheet.