Ferritic Stainless Steel Grades - Knight Group
Austenitic

Ferritic Grades get their name from iron like structure at room temperature. As a low cost alternative to other Stainless Steel Grades, Ferritic Stainless Steels have magnetic properties and offer manufacturers good formability and moderate ductility with good stress corrosion cracking resistance.

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?

Good formability

Low cost

Good stress corrosion cracking resistance

Moderate ductility

What are the disadvantages of using ferritic stainless steel?

Limited corrosion resistance and cannot be hardened by heat treatment

Ferritic Stainless Steels get their name because these alloys share the same structure as iron, when at room temperature. These alloys have a minimum chromium content of 11%, low carbon levels and contain no nickel. Despite the lack of nickel, they still provide fair corrosion resistance and stress corrosion cracking hesitance, as well as good formability. Whilst not as popular as Austenitic Alloys, Ferritic Alloys comparatively possess better engineering properties. Furthermore, without nickel, they provide a lower cost option to manufacturers. Increasing the 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.

Nonetheless, Ferritic Stainless Steels are the ideal solution for high volume applications, particularly in domestic environment where moderate corrosion resistance is acceptable. Application include hinges and stays in the UPVC window hardware industry, domestic appliances such as washing machines, cutlery and kitchen utensils. Ferritic Grades can also be found in a range of Automotive applications, including exhaust systems and trims.

Ferritic Stainless Steel Material Chemical Composition
European Designation EN 10088-2 2014Former BS Standard (Wire Only)American Designation (ASTM)TYPICAL CHEMICAL COMPOSITION %
NumberNameBS 1554 1990 nearest fitAISI nearest fitUNS nearest fitCSiMnPSCrMoNiNCuOther
1.4512X2CrTi12-409S 409000.031.01.00.040.01510.5 - 12.5----Ti (6x (C+N)) to 0.65
1.4006X12Cr13-410SS 410080.08 - 0.151.01.50.040.01511.5 - 13.5-0.75---
1.4016X6 Cr 17430S17430S 430000.081.01.00.040.01516.0 - 18.0-----
1.4016X6 Cr 17---0.081.01.00.040.01516.0 to 18.0-----
1.4510X3CrTi17-430Ti / (439)-0.051.01.00.040.01516.0 to 18.0----Ti (4x(C+N) + 0.15) to 0.80
1.4113X6CrMo17-1-434S 434000.081.01.00.040.01516.0 - 18.00.9 - 1.4----
1.4509X2CrTiNb18-441S 441000.031.01.00.040.01517.5 - 18.5----Nb: [3xC+0.30] to 1.0 max Ti: 0.1 - 0.6
1.4521X2CrMoTi18-2-444S 444000.0251.01.00.040.01517.0 - 20.01.8 - 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 2014Former BS Standard (Wire Only)American Designation (ASTM)Proof Strength 0.2% Min (N/mm2)Tensile StrengthElong. % Min. (50mm Gauge Length)Hardness Max (VPN)Surface Finish
NumberNameBS 1554 1990 nearest fitAISI nearest fitUNS nearest fit
1.4512X2CrTi12-409S 40900210380 - 56025-2B & 2R
1.4006X12Cr13-410SS 41008-600 max20-2B & 2R
1.4016X6 Cr 17430S17430S 43000260430 - 60020-2B & 2R
1.4016X6 Cr 17---260430 - 60020-2B & 2R
1.4510X3CrTi17-430Ti / (439)-230420 - 60023-2B & 2R
1.4113X6CrMo17-1-434S 43400280440 - 660182002B & 2R
1.4509X2CrTiNb18-441S 44100230430 - 63018-2B & 2R
1.4521X2CrMoTi18-2-444S 44400300420 - 64020-2B & 2R
Ferritic Stainless Steel Wire Mechanical Properties Annealed Stainless Steel
European Designation EN 10088-2 2014Former BS Standard (Wire Only)American Designation (ASTM)Maximum tensile strength N/mm²
NumberNameBS 1554 1990 nearest fitAISI nearest fitUNS nearest fitWire dia 13.0 – 6.0mmWire dia 6.00 – 1.50mmWire dia 1.50 – 0.50mmWire dia 0.50 – 0.10mm
1.4512X2CrTi12-409S 40900Not available as wire. Strip products available
1.4006X12Cr13-410SS 41008Not available as wire. Strip products available
1.4016X6 Cr 17430S17430S 43000610620630650
1.4016X6 Cr 17---Not available as wire. Strip products available
1.4510X3CrTi17-430Ti / (439)-Not available as wire. Strip products available
1.4113X6CrMo17-1-434S 43400Not available as wire. Strip products available
1.4509X2CrTiNb18-441S 44100Not available as wire. Strip products available
1.4521X2CrMoTi18-2-444S 44400Not available as wire. Strip products available
Ferritic Stainless Steel Features
European Designation EN 10088-2 2014Former BS Standard (Wire Only)American Designation (ASTM)Key FeaturesKey MarketsApplications
NumberNameBS 1554 1990 nearest fitAISI nearest fitUNS nearest fit
1.4512X2CrTi12-409S 40900Ferritic 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, TransportCar Exhausts, Rail and Road Vehicles, Transportation Equipment
1.4006X12Cr13-410SS 41008Ferritic 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, MiningMining Equipment, Petrochemical Equipment, Thermal Process Equipment.
1.4016X6 Cr 17430S17430S 43000This 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 IndustryAutomotive 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
1.4016X6 Cr 17--Ferritic Grade 430L (1.4016) is the low carbon version of alloy 430, offering moderate corrosion and heat resistance. This magnetic grade is non-hardenable by heat treatment, and good formability.Automotive, Chemical Processing, Architectural, Electronics, Food IndustryAutomotive Parts, Architectural Features, Cooking Utensils, Fasteners, Food Processing, TV Components
1.4510X3CrTi17-430Ti / (439)Availbe on request
1.4113X6CrMo17-1-434S 43400Stainless 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, ArchitecturalAutomotive Trim and Parts, Dishwashers and Domestic Appliances, Architectural, Restaurant Equipment, Nitric Acid Plant Equipment, Furnace Combustion Chambers, Oil Refinery Equipment, Roofing and Siding
1.4509X2CrTiNb18-441S 44100Ferritic 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, TransportAutomotive Exhausts, Rail and Road Vehicles, Transportation Equipment
1.4521X2CrMoTi18-2-444S 44400Ferritic 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, AutomotiveFood 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

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