400 series stainless steel coil is a stainless steel coil composed of iron, chromium, nickel, and other alloying elements. Manufactured by smelting, rolling, and annealing, it has excellent mechanical properties. The 400 series includes ferritic steels and martensitic steels. Ferritic steels are non-hardening steels, which are very suitable for high-temperature conditions and can be used in automotive exhaust systems, heat exchangers, furnaces, appliances, etc.; martensitic steels can be hardened, ideal for a variety of common uses such as cutlery, sport knives, and more. Compared to 300 series stainless steel coils, 400 series stainless steel coils have increased chromium and manganese content, higher carbon content, slightly less corrosion resistance, but higher strength and higher wear resistance,Wide range of applications.
Product Specifications
409, 410, 420 and 430 stainless steel coils are the most popular models in our company’s 400 series stainless steel coils. Some product descriptions are as follows:
| Grade | Chemical Composition | Characteristics | Applications |
| 409 | Iron, Chromium, Molybdenum, Nickel, Manganese, and other elements | Lower cost, Ferritic structure | Automotive exhaust systems, appliances, heat exchangers |
| 410 | Iron, Chromium, Carbon, and other elements | Martensitic structure, High strength | Cutting tools, bearings, valves, pumps, automotive components |
| 420 | Iron, Chromium, Carbon, and other elements (Higher carbon content) | Martensitic structure, Excellent polishability | Cutting tools, surgical instruments, cutlery, timepieces, stone cutting tools |
| 430 | Iron, Chromium, small amounts of Nickel, and other elements | Ferritic structure, Good formability | Architectural decoration, kitchen utensils, automotive trim, appliance panels, and accessories |
The actual chemical element content and mechanical properties will vary according to specific order requirements. When selecting and purchasing 400 series stainless steel coils, please feel free to contact us for more detailed product parameter information. If you have other needs, please also tell us in time, and we will do our best to help you provide suitable stainless steel products.
How to Choose the Right Stainless Steel Coil from the 400 Series Stainless Steel Coil？
When choosing the right stainless steel coil from 400 series stainless steel coils, you can consider the following factors:
Application requirements: It is very important to determine your specific application needs, different stainless steel coils have different performance advantages and limitations in specific application areas and environments. For example, corrosion resistance, mechanical strength, wear resistance, high-temperature resistance, etc. are all factors that need to be considered.
Material properties: Understanding the chemical composition, structure type (such as ferrite, martensitic, etc.), and mechanical properties (such as hardness, tensile strength, etc.) of different stainless steel coils is the key to choosing the right stainless steel coil. You can go to our product page to refer to the datasheet or consult us at any time for relevant information.
Corrosion Resistance: Depending on your application environment and the nature of the corrosive media, it is critical to select a stainless steel coil with the proper corrosion resistance. The corrosion resistance of stainless steel depends on its chemical composition, such as the content of elements such as chromium, nickel, molybdenum, etc., to ensure that the selected stainless steel coil can provide sufficient corrosion resistance in a specific environment.
Processability: If you need to perform further processing on stainless steel coils, such as cutting, bending, welding, etc., you need to consider its processability. Different stainless steel coils have different processing properties, such as machinability, weldability, thermal deformation, etc.
Standard Specifications: Knowing the applicable standard specifications is also very important. Different countries and industries may have different standards and specifications applicable to stainless steel materials. You can consult our business personnel to help you choose stainless steel coils that meet your specific requirements in time.
Is 400 Series Stainless Steel Coil Good?
Of course! 400 series stainless steel coils are very popular in many applications due to some of their unique properties. Let’s take a look at the characteristics of 400 series stainless steel coils:
Strength and wear resistance: 410, 420 stainless steel coils in the 400 series stainless steel coils have higher strength and wear resistance, and are suitable for applications that require high strength and wear resistance.
Good heat resistance: 400 series stainless steel coils have good heat resistance and are suitable for some application scenarios in high-temperature environments.
Machinability: Some types of 400 series stainless steel coils have better machinability due to the extra sulfur content, and are easy to process into various shapes.
Corrosion resistance: Some types of 400 series stainless steel coils (such as 409, 430) have good corrosion resistance in general atmospheric environments. However, the corrosion resistance of 400-series stainless steel coils may be slightly reduced relative to 300-series stainless steel.
Cost-Effective: Some models in the 400 series stainless steel coils (such as 409) have a lower price in the market, so they may be more competitive in some cost-sensitive applications.
The Difference between 400 Series Stainless Steel Coil and 300 Series
There are some differences between 400 series stainless steel coils and 300 series in terms of chemical composition, mechanical properties, processing properties, and corrosion resistance. 400-series stainless steel coils generally have a higher chromium content, have higher strength and wear resistance, and are suitable for applications requiring high strength and wear resistance. Compared with 300 series stainless steel coils, 400 series stainless steel coils may perform slightly worse in terms of corrosion resistance, but some types of stainless steel coils in the 400 series have better processing performance. The difference between 400 series stainless steel coil and 300 series will also vary depending on the specific stainless steel type and application. If you have any questions, please feel free to consult us.
What Is the 400 Series Stainless Steel Coil Used for?
400 series stainless steel coil is a series of stainless steel coils commonly used in life and industry. Because of its excellent performance, it is widely used in various industries to meet the needs of different fields, including but not limited to the following aspects:
Architectural decoration: 430 stainless steel coils have good formability and decorative effects, and are often used in architectural decoration to make indoor and outdoor decoration materials, elevator door panels, wall finishes, etc.
Manufacturing: For example, 410 and 420 stainless steel coils are often used to manufacture mechanical parts that require high strength and wear resistance, such as knives, bearings, valves, pumps, and auto parts.
Automotive exhaust system: 400 series stainless steel coils (such as 409) are often used in the manufacture of automotive exhaust system components due to their high-temperature resistance and corrosion resistance.
Food processing equipment: 400 series stainless steel coils (such as 430) are often used in the food processing industry to manufacture food containers and kitchen utensils due to their good hygienic performance.
Medical equipment: 400 series stainless steel coils (such as 420) have excellent antibacterial properties and are often used in the manufacture of surgical instruments and medical equipment.
The specific use may vary due to different 400 series stainless steel coil models and specific application requirements. The best choice should be evaluated according to specific needs and conditions. It is recommended that you consult us in advance, our company’s professional material engineers and relevant staff will tell you more accurate information and more professional advice.
Reasons to Choose GNEE
The Gnee Steel Group is a professional supply chain enterprise, mainly engaged in steel plate, coil, profile, and outdoor landscape design and processing. After 15 years of development, it has become a leading international steel supply chain company in the Central Plains. Relying on many iron and steel enterprises such as Angang Steel, we have a wide variety of products, including shipbuilding plates, pressure vessel plates, bridge decks, etc. We also provide pipes, bars, engineering design and manufacturing, and comprehensive stainless steel solution services. Cooperating with more than 600 companies around the world, the annual export capacity exceeds 80,000 metric tons. Choose Gnee Steel Group, you choose a professional and reliable steel supply chain partner!