Ferritic Stainless Steel
Cost-Effective, Magnetic, and Versatile Alloys for Diverse Applications with Good Corrosion Resistance
Available in strip and wire
Ferritic Grades get their name from iron-like structures at room temperature. Serving as a low-cost alternative to other Stainless Steel Grades, ferritic stainless steels have magnetic properties and offer manufacturers excellent resistance to high-temperature oxidisation and protection against good stress corrosion cracking. These alloys offer manufacturers a combination of high thermal conductivity, superior creep resistance and yield strength, with good formability and moderate ductility. As specialist Stainless Steel suppliers, the Knight Group offers ferritic grades of precision stainless steel in strip and wire.
Available Ferritic Grades
434 / 1.4113 / S 43400
430 / 1.4016 / S 43000
410S / 1.4006/ S 41008
430L / 1.4016
430Ti (439) / 1.4510
441 / 1.4509 / S 44100
431 / 1.4057 / S43100
What are the benefits of using ferritic stainless steel?
Low cost alternative to Austenitic Stainless Steels
Magnetic
Good corrosion resistance, especially in environments with low chloride concentrations.
Low Thermal Expansion which can be beneficial in high-temperature applications.
Good stress corrosion cracking resistance
Good formability
Moderate ductility
What are the disadvantages of using ferritic stainless steel?
Lower corrosion resistance compared to Austenitic Stainless Steels, particularly in chloride-rich environments or when exposed to aggressive chemicals
Cannot be hardened by heat treatment
Limited formability compared to Austenitic Stainless Steels
Lower strength properties compared to other stainless steel types like Austenitic or Precipitation Hardening Stainless Steels.
Susceptible to brittleness at low temperatures or when exposed to aggressive environments, which may limit their use in certain applications.
Ferritic Stainless Steel Grades: Experience Cost-Effective, Magnetic, and Versatile Alloys for High-Volume Applications
Ferritic Stainless Steel grades offer manufacturers a cost-effective alternative to other Stainless Steels, boasting magnetic properties, good formability, moderate ductility, and impressive corrosion resistance. At Knight Group, we provide a wide range of Ferritic Stainless Steel alloys to cater to the diverse needs of our customers across various industries.
Â
Key Features and Benefits
- Cost-Effective: Ferritic Stainless Steel grades contain no nickel, making them a more affordable option for manufacturers than other Stainless Steel types.
- Magnetic Properties: These alloys remain magnetic in all tempers, making them suitable for applications that require magnetic materials.
- Good Formability: Ferritic Stainless Steel alloys offer good formability, allowing manufacturers to create intricate shapes and components with ease.
- Moderate Ductility: These alloys provide moderate ductility, making them suitable for a variety of applications.
- Corrosion Resistance: Ferritic Stainless Steel grades offer fair corrosion resistance and stress corrosion cracking resistance, ensuring durability in various environments.
Understanding Ferritic Stainless Steel Grades
Ferritic Stainless Steels share the same structure as iron at room temperature and have a minimum chromium content of 11% and a low carbon level. Unlike Austenitic Stainless steels, Ferritic alloys do not contain nickel. Though they cannot match the superior corrosion resistance of Austenitic grades, these alloys can still provide fair corrosion resistance, stress corrosion cracking resistance, and good formability. They are known for their excellent high-temperature oxidation resistance and high thermal conductivity. Furthermore, Niobium stabilised grades, such as 1.4006 (alloy 430), provide exceptional creep resistance. Increasing chromium levels can improve corrosion resistance; however, these alloys have low work hardening rates. Unlike other alloys, they do not develop high strength from cold working and remain magnetic in all tempers.
Â
Applications of Ferritic Stainless Steels
Whilst not as popular as Austenitic Alloys, Ferritic Alloys possess better engineering properties, with lower thermal expansion when heated. Furthermore, without nickel, they provide a lower cost option to manufacturers, making them a great alternative to other Stainless Steel grades. These alloys are ideal for high-volume applications, particularly in domestic environments where moderate corrosion resistance is acceptable. Typical applications include domestic appliances and automotive exhaust systems, and their magnetic properties have also made them ideally suited for induction hobs. Ferritic Stainless Steel Grades can also be found in a range of Automotive applications, including exhaust systems and trims.Â
Â
Take the Next Step: Harness the Power of Ferritic Stainless Steel Grades
Explore the world of Ferritic Stainless Steel grades and discover how they can benefit your manufacturing process with their cost-effective, magnetic, and versatile properties. Contact the Knight Group today to learn more about our range of Ferritic Stainless Steel alloys and how we can help you unlock their full potential.
| CHEMICAL COMPOSITION OF FERRITIC STAINLESS STEEL | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| European Designation EN 10088-2 2014 | Former BS Standard (Wire Only) | American Designation (ASTM) | TYPICAL CHEMICAL COMPOSITION % | ||||||||||||
| Number | Name | BS 1554 1990 nearest fit | AISI nearest fit | UNS nearest fit | C | Si | Mn | P | S | Cr | Mo | Ni | N | Cu | Other |
| 1.4512 | X2CrTi12 | - | 409 | S 40900 | 0.03 | 1.0 | 1.0 | 0.04 | 0.015 | 10.5 - 12.5 | - | - | - | - | Ti (6x (C+N)) to 0.65 |
| 1.4006 | X12Cr13 | 410S21 | 410S | S 41008 | 0.08 - 0.15 | 1.0 | 1.5 | 0.04 | 0.015 | 11.5 - 13.5 | - | 0.75 | - | - | - |
| 1.4016 | X6 Cr 17 | 430S17 430S18 | 430 | S 43000 | 0.08 | 1.0 | 1.0 | 0.04 | 0.015 | 16.0 - 18.0 | - | - | - | - | - |
| 1.4510 | X3CrTi17 | - | 430Ti / (439) | - | 0.05 | 1.0 | 1.0 | 0.04 | 0.015 | 16.0 to 18.0 | - | - | - | - | Ti (4x(C+N) + 0.15) to 0.80 |
| 1.4113 | X6CrMo17-1 | - | 434 | S 43400 | 0.08 | 1.0 | 1.0 | 0.04 | 0.015 | 16.0 - 18.0 | 0.9 - 1.4 | - | - | - | - |
| 1.4509 | X2CrTiNb18 | - | 441 | S 44100 | 0.03 | 1.0 | 1.0 | 0.04 | 0.015 | 17.5 - 18.5 | - | - | - | - | Nb: [3xC+0.30] to 1.0 max Ti: 0.1 - 0.6 |
| 1.4521 | X2CrMoTi18-2 | - | 444 | S 44400 | 0.025 | 1.0 | 1.0 | 0.04 | 0.015 | 17.0 - 20.0 | 1.8 - 2.5 | - | 0.03 | - | Ti (4x(C+N) + 0.15) to 0.80 |
| FERRITIC STAINLESS STEEL STRIP MECHANICAL PROPERTIES ANNEALED STAINLESS STEEL | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| European Designation EN 10088-2 2014 | Former BS Standard (Wire Only) | American Designation (ASTM) | Proof Strength 0.2% Min (N/mm2) | Tensile Strength | Elong. % Min. (50mm Gauge Length) | Hardness Max (VPN) | Surface Finish | ||
| Number | Name | BS 1554 1990 nearest fit | AISI nearest fit | UNS nearest fit | |||||
| 1.4512 | X2CrTi12 | - | 409 | S 40900 | 210 | 380 - 560 | 25 | - | 2B & 2R |
| 1.4006 | X12Cr13 | 410S21 | 410S | S 41008 | - | 600 max | 20 | - | 2B & 2R |
| 1.4016 | X6 Cr 17 | 430S17 430S18 | 430 | S 43000 | 260 | 430 - 600 | 20 | - | 2B & 2R |
| 1.4510 | X3CrTi17 | - | 430Ti / (439) | - | 230 | 420 - 600 | 23 | - | 2B & 2R |
| 1.4113 | X6CrMo17-1 | - | 434 | S 43400 | 280 | 440 - 660 | 18 | 200 | 2B & 2R |
| 1.4509 | X2CrTiNb18 | - | 441 | S 44100 | 230 | 430 - 630 | 18 | - | 2B & 2R |
| 1.4521 | X2CrMoTi18-2 | - | 444 | S 44400 | 300 | 420 - 640 | 20 | - | 2B & 2R |
| FERRITIC STAINLESS STEEL WIRE MECHANICAL PROPERTIES | ||||||||
|---|---|---|---|---|---|---|---|---|
| European Designation EN 10088-2 2014 | Former BS Standard (Wire Only) | American Designation (ASTM) | Maximum tensile strength N/mm² | |||||
| Number | Name | BS 1554 1990 nearest fit | AISI nearest fit | UNS nearest fit | Wire dia 13.0 – 6.0mm | Wire dia 6.00 – 1.50mm | Wire dia 1.50 – 0.50mm | Wire dia 0.50 – 0.10mm |
| 1.4512 | X2CrTi12 | - | 409 | S 40900 | Not available as wire. Strip products available. | |||
| 1.4006 | X12Cr13 | 410S21 | 410S | S 41008 | Not available as wire. Strip products available. | |||
| 1.4016 | X6 Cr 17 | 430S17 430S18 | 430 | S 43000 | 610 | 620 | 630 | 650 |
| 1.4510 | X3CrTi17 | - | 430Ti / (439) | - | Not available as wire. Strip products available. | |||
| 1.4113 | X6CrMo17-1 | - | 434 | S 43400 | Not available as wire. Strip products available. | |||
| 1.4509 | X2CrTiNb18 | - | 441 | S 44100 | Not available as wire. Strip products available. | |||
| 1.4521 | X2CrMoTi18-2 | - | 444 | S 44400 | Not available as wire. Strip products available. | |||
| FERRITIC STAINLESS STEEL FEATURES AND APPLICATIONS | |||||||
|---|---|---|---|---|---|---|---|
| European Designation EN 10088-2 2014 | Former BS Standard (Wire Only) | American Designation (ASTM) | Key Features | Key Markets | Applications | ||
| Number | Name | BS 1554 1990 nearest fit | AISI nearest fit | UNS nearest fit | |||
| 1.4512 | X2CrTi12 | - | 409 | S 40900 | Ferritic Stainless Steel grade 409 (1.4512) is a titanium stabilised alloy, ideally suited to high temperature applications due its corrosion resistance in these environments. This alloy also offers good mechanical properties and weldability up to 2.5mm thickness. | Automotive, Transport | Car Exhausts, Rail and Road Vehicles, Transportation Equipment |
| 1.4006 | X12Cr13 | 410S21 | 410S | S 41008 | Ferritic Alloy 410S (1.4006) is a non-heat treatable, low carbon version of Stainless Steel grade 410. It offers moderate strength and corrosion resistance. When compared to austenitic grades, this alloy has a higher heat conductivity and a low heat expansion coefficient. It has good formability and is ideally suited to deep drawing applications. | Petrochemical Industry, Mining | Mining Equipment, Petrochemical Equipment, Thermal Process Equipment. |
| 1.4021 | X20Cr13 | 420S29 420S37 | 420 | S 42000 | Available by Request | ||
| 1.4028 | X30Cr13 | 420S45 | 420 | S 42001 | Available by Request | ||
| 1.4016 | X6 Cr 17 | 430S17 430S18 | 430 | S 43000 | This magnetic grade has good formability. It offers good corrosion resistance in moderately aggressive media and good oxidation resistance at elevated temperatures. It is not susceptible to stress cracking corrosion. This alloy is not hardenable through heat treatment. | Automotive, Chemical Processing, Etching, Oil and Gas, Electronics, Architectural, Food Industry | Automotive Trim and Parts, Gaskets, Domestic Appliance Panels, Chemically Etched Components, Paint Brushes, Cooking Utensils, Food Processing Equipment, Fasteners, Lights Bulbs, Hose Clamps, Oil Refinery Components in Acidic Environments, Architectural Features |
| 1.4510 | X3CrTi17 | - | 430Ti / (439) | Available on request | |||
| 1.4113 | X6CrMo17-1 | - | 434 | S 43400 | Stainless Steel grade 434 (1.4113) is the most popular choice of the non work hardenable Ferritic grades. This low Carbon Ferritic Stainless Steel has additions of Molybdenum to increase corrosion protection, offering better corrosion resistance compared to 430 (1.4016). It is oxygen and heat resistant up to 816°C (1500°F). Other benefits include excellent polishing characteristics. | Automotive, Architectural | automotive trim and parts, dishwashers and domestic appliances, architectural, restaurant equipment, nitric acid plant equipment, furnace combustion chambers, oil refinery equipment, roofing and siding |
| 1.4509 | X2CrTiNb18 | - | 441 | S 44100 | Ferritic grade 441 (1.4509) is a magnetic Stainless Steel grade containing niobium. This provides good oxidation and corrosion resistance. This Stainless Steel grade also has good high-temperature strength, with good ductility and weldability, making it ideal for deep drawing and other fabrication applications. | Automotive, Transport | automotive exhausts, rail and road vehicles, transportation equipment |
| 1.4521 | X2CrMoTi18-2 | - | 444 | S 44400 | Ferritic grade 444 (1.4521) is a low carbon, low nitrogen, stainless steel that offers superior pitting and crevice corrosion resistance compared with other Ferritic Alloys. When superior corrosion resistance and resistance to chloride stress corrosion cracking is required, this grade provides an ideal solution. | Food Processing, Automotive | food processing, brewery equipment, heat exchangers, automotive components |
All data is provided for informational purposes only. In no event will the Knight Group and its subsidiaries, be liable for in respect of any action taken by any third party arising from using the information taken from our online or printed sources. Chemical and Mechanical Properties should not be construed as maximum or minimum values for specifications, nor should information be used to assess suitability for a particular use or application. The information and data provided is deemed to be accurate to the best of our knowledge and may be revised anytime without notice and assume no duty to update