Ferritic stainless steel is a class of chromium-based alloys renowned for their exceptional corrosion resistance, excellent mechanical properties, and cost-effectiveness. Unlike the more common austenitic grades (like 304), ferritic steels possess a body-centered cubic (BCC) structure, making them magnetic and generally not hardenable by heat treatment. This guide provides a comprehensive, expert overview for engineers, procurement managers, and designers across global markets. Welcome to inquire and contact us about the lastest price for sale.
Why Choose Ferritic Stainless Steel?
In Stainless Steel Market, we take pride in providing premium ferritic stainless steel products for your most demanding projects. With competitive pricing, fast shipping, and superior customer service, we’re here to be your trusted stainless steel supplier. Our company has the good service and professional expert for solutions to you.
Ferritic Stainless Steel Grade Equivalents
| AISI (US) | EN (Europe) | JIS (Japan) | GB (China) | Common Name |
|---|---|---|---|---|
| 409 | 1.4512 | SUS 409 | 06Cr13Al | Automotive Grade |
| 430 | 1.4016 | SUS 430 | 10Cr17 | General Purpose |
| 434 | 1.4113 | SUS 434 | – | Moly-Strengthened |
| 439 | 1.4510 | SUS 439L | 10Cr17Ti | Ti-stabilized |
| 441 | 1.4509 | SUS 441 | – | EN 1.4509 |
| 444 | 1.4521 | SUS 444M | 10Cr18Mo | High Mo, High Corrosion |
| 446 | 1.4713 | SUS 446 | – | High Chromium |
Key Benefits:
Ferritic stainless steels offer a unique combination of properties that make them ideal for a wide range of applications.
- •High Corrosion Resistance: Excellent resistance to stress corrosion cracking and oxidation, particularly in nitric acid and organic acid media. Performance is superior to martensitic grades but generally less than austenitic and duplex grades in chloride environments.
- •Magnetic Properties: All ferritic grades are strongly magnetic, a critical factor for applications involving motors, solenoids, and electromagnetic shielding.
- •Good Mechanical Properties: Exhibit good strength and hardness, though often with lower ductility and toughness compared to austenitic steels, especially at low temperatures.
- •Cost-Effective: Typically contain lower levels of nickel (Ni) or are nickel-free, making them more price-stable and economical than nickel-alloyed austenitic steels.
- •Thermal Conductivity: Higher thermal conductivity than austenitic steels, beneficial for heat exchanger applications.
Applications of Ferritic Stainless Steel
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| Grade | C (max) | Cr | Other Elements | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) |
|---|---|---|---|---|---|---|
| 409 | 0.08 | 10.5-11.75 | Ti; Ni | 380 | 170 | 20 |
| 430 | 0.12 | 16.0-18.0 | – | 450 | 205 | 22 |
| 439 | 0.07 | 17.0-19.0 | Ti; N | 450 | 240 | 22 |
| 444 | 0.025 | 17.5-19.5 | Mo 2.0-3.0; Nb | 415 | 275 | 20 |
The unique properties of ferritic grades make them the material of choice in numerous industries.
- •Automotive Industry: 409 and 436 are extensively used in exhaust systems, catalytic converter shells, and mufflers due to their high-temperature oxidation resistance.
- •Architectural and Decorative: Grade 430 is widely used for interior trim, decorative panels, and kitchen appliances (sinks, hob liners) because of its aesthetics and formability.
- •Industrial and Chemical: Grades 444 and 446 are specified for heat exchangers, water tanks, and plumbing fixtures in aggressive environments due to their superior pitting and crevice corrosion resistance.
- •Consumer Goods: Used in washing machine drums, microwave oven parts, and cookware.
Why Us Ferritic Stainless Steel Supplier
As a premier Chinese carbon metal steel supplier, we combine technical depth, cost efficiency, and service excellence to provide tailored solutions. Choose the right steel for your application—and count on us to deliver quality, performance, and price competitiveness. Contact us today to take your project forward!
- •Global Standard Compliance: Our products meet and exceed AISI, EN, JIS, and GB standards, ensuring consistent quality for your projects in Asia, Europe, and the Americas.
- •Full Range of Grades & Forms: We supply a comprehensive inventory of ferritic grades (409, 430, 439, 441, 444) in various forms: coil, sheet, plate, strip, and bar.
- •Precision Processing: Value-added services including precision slitting, cutting, edging, and leveling to meet your exact specifications.
- •Technical Expertise: Our metallurgical experts provide unparalleled technical support, helping you select the optimal grade for your application to maximize performance and cost-efficiency.