1.4509 / 441 Stainless Steel Coils & Slit Coils
Dual-stabilised ferritic stainless steel: coils, slit coils and sheets in 2B, 2D and BA, 0.4 to 3.0 mm, from stock or from production, with the country of origin confirmed per lot. Excess lots at short notice.
441 / 1.4509
Choose your form
Coils, slit coils and sheets, from stock or from production. Country of origin and EN 10204 3.1 certificate confirmed per lot.
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Coils
- Cold-rolled coils 0.4–3.0 mm, widths up to 1,500 mm
- 2B, 2D (matt) or BA (bright annealed) finish
- Prime coils and excess lots, from one coil
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Slit coils
- Slit to your width, from narrow strip to wide slit coils
- Coil weight and inside diameter to suit your line
- Slit edges; deburred on request
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Sheets
- Cut to length from coil, 0.4–3.0 mm
- 1000 × 2000, 1250 × 2500, 1500 × 3000 or your size
- Protective film or brushed finish on request
Photos show typical products, not a specific lot. All stainless grades: see stainless steel coils, sheets and plates.
From stock or from production
441 supply options
Forms, finishes and typical sizes we supply regularly. Exact quantities, dimensions, quality, documents and delivery are confirmed in your quotation.
| Form | Finish | Typical sizes (mm) | Enquiry |
|---|---|---|---|
| Coils | 2B | 0.4–3.0 × 1000, 1250 or 1500 wide | Request price and availability |
| Coils | 2D | 1.2–3.0 × 1000–1500 wide | Request price and availability |
| Coils | BA | 0.4–0.8 × up to 1000 wide | Request price and availability |
| Slit coils | 2B, 2D, BA | 0.4–3.0 × your widths | Request price and availability |
| Sheets | 2B | 0.4–3.0 × 1000 × 2000, 1250 × 2500 or 1500 × 3000 | Request price and availability |
| Excess lots | 2B, 2D | Sizes as listed; quality, origin and certificate per lot | Request price and availability |
Typical sizes are thickness × width, or thickness × sheet format; other sizes on request. From one coil or one pack. Coil weights, pack sizes, edges, quality and the certificate (EN 10204 3.1) are confirmed in your offer. Collected FCA Beveren (Port of Antwerp) or delivered.
Other sizes441 coil and sheet calculator
Sheet weight, coil weight per metre, or coil weight and length from the inside and outside diameter, with the density of 1.4509 (7.7 kg/dm³). The result goes straight into your enquiry.
Nominal weights are calculated from nominal dimensions using a density of 7.7 kg/dm³ (EN 10088-1, 1.4509). The calculator applies the dimensional and unit conversions for sheet weight, coil weight and estimated strip length. These results are estimates, not measured lot weights. The invoice weight follows the certificate or the weighed lot.
How to get a price
A 441 quotation in three steps
Coils, slit coils and sheets on one quotation, with the documents your project needs.
Send us
- The grade and finish, for example 1.4509 2B to EN 10088-2, and the tolerance class if it matters (EN ISO 9445)
- The size: thickness × width, the sheet length, or the coil inside diameter and maximum coil weight, and the edge (mill edge or slit edge)
- Quantity in kilograms, coils or sheets, the first delivery and the yearly volume, the delivery place and date, and the certificates you need
Good to know
- From stock or from productionStandard sizes from stock or from production; slit coils and sheets are processed to order. We confirm availability and the date in our offer.
- Excess lotsExcess and second-choice coils are offered with size, quality, origin and certificate stated per lot. Price and availability are confirmed in our offer. Ask for the current list.
- CertificatesEN 10204 3.1, confirmed per lot in our quotation.
441 at a glance
EN 1.4509 (X2CrTiNb18, AISI 441) is a ferritic stainless steel with about 18 % chromium, stabilised with titanium and niobium. Selection for welded parts or elevated-temperature service must take account of the fabrication procedure, service conditions and project specification. Price and availability are confirmed in our quotation.
Chemical composition (EN 10088-2, % by mass)
| C | Si | Mn | P | S | Cr | Ti | Nb |
|---|---|---|---|---|---|---|---|
| ≤ 0.030 | ≤ 1.00 | ≤ 1.00 | ≤ 0.040 | ≤ 0.015 | 17.5–18.5 | 0.10–0.60 | 3 × C + 0.30 to 1.00 |
Annealed condition: tensile strength Rm 430–630 MPa, elongation A80 at least 18 %. Density 7.7 kg/dm³.
441 compared with 430 and 304
| 441 (1.4509) | 430 (1.4016) | 304 (1.4301) | |
|---|---|---|---|
| Structure | Ferritic, magnetic | Ferritic, magnetic | Austenitic, non-magnetic when annealed |
| Nickel | Check the lot composition | Check the lot composition | 8.0–10.5 % |
| Stabilised | Titanium and niobium | No | No |
| Welded parts | Welding suitability must be checked for the application | Limited: can sensitise | Very good |
| Thermal expansion (20–100 °C) | About 10 × 10⁻⁶/K | About 10 × 10⁻⁶/K | About 16 × 10⁻⁶/K |
Where 441 is used
- Exhaust systems: manifolds, pipes and silencers
- Heat exchangers, boilers and flue systems
- Catering equipment and domestic appliances
- Solar-thermal absorbers and hot-water tanks
Related ferritic grades on request: 430 (1.4016), 439 (1.4510), 444 (1.4521) and 409L (1.4512). For the complete stainless steel range, see our page: stainless steel coils, sheets and plates.
Standards and documents
- Flat products: EN 10088-2 for general purposes; EN 10028-7 for pressure purposes
- Tolerances: EN ISO 9445-1 for narrow strip and cut lengths, EN ISO 9445-2 for wide strip and sheet
- Finishes to EN 10088-2: 2B (cold rolled, heat treated, pickled, skin passed), 2D (matt), 2R (bright annealed, BA)
- EN 10204 3.1 inspection certificates, confirmed per lot in our quotation
Frequently asked questions
What is 1.4509 / 441 stainless steel?
A ferritic stainless steel with about 18 % chromium, stabilised with titanium and niobium (EN 1.4509, X2CrTiNb18, AISI 441). Suitability for welding and elevated-temperature service must be checked against the fabrication procedure, service conditions and project specification.
What is the difference between 441 (1.4509) and 430 (1.4016)?
441 is stabilised with titanium and niobium, unlike 430. Selection for welded parts or elevated-temperature service must consider the fabrication procedure, service conditions and project requirements.
Can 441 replace 304 to save cost?
Not as an automatic substitute. A proposed replacement of 304 must be checked against the required corrosion resistance, service conditions, fabrication requirements and project specification, and approved before ordering. Price and availability are confirmed in the quotation.
Is 441 magnetic?
Ferritic 1.4509 is generally magnetic. Austenitic 304 usually has a low magnetic response in the annealed condition, but processing, especially cold working, can change that response. If magnetic behaviour matters to your application, specify the required limits and confirm them for the proposed material and intended processing.
Which forms and sizes do you supply?
Cold-rolled coils, slit coils and sheets from 0.4 to 3.0 mm, in 2B, 2D and BA finishes, coils up to 1,500 mm wide. Coils can be slit to your widths and sheets cut to your lengths. Exact sizes, quality and certificates are confirmed in your quotation.
Do you have excess or second-choice 441?
Excess and second-choice 441 coils come up regularly. Size, quality, origin and certificate are stated per lot in our offer; ask for the current list.
How do I calculate the weight of a 441 sheet or coil?
Sheet weight in kg = thickness × width × length in mm × 7.7 ÷ 1,000,000: a sheet of 1.0 × 1250 × 2500 mm weighs about 24.1 kg. Coil weight in kg = π/4 × (OD² − ID²) × width × 7.7 ÷ 1,000,000: a 1250 mm wide coil with ID 508 and OD 1200 mm weighs about 8.9 t. The calculator on this page does it for you.
Which documents do you provide?
EN 10204 3.1 inspection certificates, confirmed per lot in our quotation.
Related: stainless steel coils, sheets and plates · surface finishes · slitting and cutting
Need 1.4509 / 441 coils or slit coils?
Send thickness, width, finish and quantity. We reply with price and availability.