409 Stainless Steel Sheet
What is 409 Stainless Steel Sheet?
The 409 stainless steel sheet, provided by Aoxing, stands out as a cost-effective and versatile ferritic stainless steel, primarily recognized for its application in the automotive industry. This alloy is engineered for situations demanding moderate stress and heat resistance, making it ideal for automotive exhaust systems and other components where cost-efficiency is paramount. Unlike its counterpart, SS 439, which offers enhanced capabilities in heat transfer and pollutant absorption, 409 maintains a focus on practicality and durability for internal automotive parts, such as engine components and exhaust pipes.
Despite its lower chromium and nickel content, which limits its corrosion resistance compared to other stainless steel variants, 409 stainless steel does possess a degree of heat resistance and is capable of forming a passive surface film to offer corrosion protection. Welding of this material should be cautiously approached, with preheating temperatures recommended between 150 and 260 degrees Celsius to prevent damage.
Alloy 409 distinguishes itself with a balance of good formability, medium strength, and excellent resistance to elevated temperature corrosion, underlining its utility beyond the automotive sector into environments where visual aesthetics are secondary to mechanical performance and cost-effectiveness. Its usage extends to fields requiring the resilience of stainless steel without the necessity for the highest level of corrosion resistance, showcasing its adaptability and value in mildly corrosive conditions.
Features of 409 Stainless Steel Sheet
The 409 stainless steel sheet, also referred to as 409 SS plate or simply 409 steel, is characterized by its ferritic structure and balanced chemical composition. Primarily consisting of iron (Fe), with modest amounts of carbon (C) at less than 0.08%, chromium (Cr) between 10.5-11.75%, and nominal contents of nickel (Ni), manganese (Mn), silicon (Si), phosphorus (P), sulfur (S), and titanium (Ti) calculated as 6x%C-0.75%. This composition renders 409 SS plate particularly suitable for applications where aesthetics are not a primary concern, making it ideal for utilitarian components in various industries.
Despite its relatively low chromium and nickel content, 409 steel demonstrates a certain degree of corrosion resistance, albeit not as pronounced as higher alloyed types. It also exhibits mild heat resistance, contributing to its utility in environments where these properties are sufficient for the intended application.
Machinability and weldability are key features of 409 SS plate, requiring preheating between 150 and 260 degrees Celsius to ensure optimal processing and shaping capabilities. Attention must be paid to avoid excessive preheating, which could potentially compromise the integrity of the material.
409 stainless steel is frequently employed in non-visual roles within the automotive sector, such as in the construction of brakes, rotors, exhaust pipes, and engine parts, where its mechanical properties are leveraged. Although SS 439, a higher-grade variant, may be chosen for specific applications like catalytic converters due to its enhanced pollutant retention, 409 remains a versatile and cost-effective option for many industrial uses, offering a reliable solution where strength and basic corrosion resistance are required.
409 Stainless Steel Chemical Composition & Technical Data Sheet
409 Stainless Steel Standards Comparison
| STS | USA | UNS | CHINA | EURONORM | RUSSIA | SWEDISH | JAPANESE | |
| GRADE | AISI/ASTM | NO | GB | NO | NAME | GOST | SS | JIS |
| 409 | 409 | S40900 | 0Cr11Ti | 1.4512 | X2CrTi12 | 08Х11Т | X6CrTi12 | SUS 409 |
409 Stainless Steel Chemical Composition
| Grade | Standard | Chemical Composition(%) | |||||||||
| C | Si | Mn | P | S | Cr | Ni | Ti | Nb | N | ||
| 409 | ASTM A240 | ≤0.03 | ≤1.00 | ≤1.00 | ≤0.04 | ≤0.02 | 10.50~11.70 | ≤0.50 | 6*(C%+N%)~0.50 | ≤0.17 | ≤0.03 |
409 Stainless Steel Mechanical Properties
| Grade | Tensile Test | Hardness Test | |||
| 0.2% Y.S(Mpa) | T.S(Mpa) | Elongation(%) | Hardness | HRB | |
| 409 | ≥170 | ≥380 | ≥20 | Annealed | ≤88 |
409 Stainless Steel Finish & Application
The 409 stainless steel sheet, also known as 409 SS plate or simply 409 steel, offers a blend of durability and functionality across various finishes, making it a preferred choice in numerous industrial applications. Recognized for its cost-efficiency and corrosion resistance, 409 stainless steel is widely utilized in sectors demanding both resilience and reliability.
Key applications of 409 stainless steel include:
- Automotive and Truck Exhaust Systems: Its resistance to high temperatures and corrosion makes 409 SS plate a common material for exhaust manifolds and mufflers.
- Agricultural Machinery: 409 steel's durability under challenging conditions is ideal for machinery such as spreaders in the agricultural sector.
- Heat Exchangers: The thermal and corrosion resistance of 409 stainless steel sheets are leveraged in heat exchangers, contributing to efficiency and longevity.
- Fuel Filters: The material's properties ensure performance and durability in fuel filtration systems.
This utilization of 409 stainless steel in industries where exposure to corrosive elements and high temperatures is routine underlines its versatility. The material's adaptability, coupled with its cost-effectiveness, cements the 409 SS plate as a practical solution for applications where the balance of performance and expenditure is crucial.
409 Stainless Steel Sheet Package & Loading Details
At Aoxing, as a premier provider of 409 stainless steel sheets, our dedication extends to the excellence of our packaging and shipping practices, developed from years of export experience. We are well-versed in the standards required for export packaging and take additional steps to reinforce our products within the container, ensuring they withstand the rigors of transportation without damage.
Our 409 stainless steel sheets are individually wrapped in robust, water-resistant materials to guard against environmental elements. To ensure the sheets remain immobile and maintain their pristine condition during transit, we employ strategic bracing within the container. This methodical approach to packaging guarantees that your stainless steel sheets arrive in perfect condition, ready for your project needs.
WHY CHOOSE US?
We are the cold-rolled stainless steel coil production base in China with 200,000 tons capacity annually.
1. Guaranteed Stock Availability: Experiencing stock shortages during crucial times can hinder your projects. Our robust inventory management ensures a consistent supply, ready to dispatch large quantities swiftly, keeping your operations smooth and uninterrupted.
2. Comprehensive Range of Specifications: Finding the exact stainless steel coil specifications can be challenging. We offer a diverse range of specs, ensuring you find precisely what your project demands, with the assurance of our commitment to meeting your specific needs.
3. Customized Material Processing: Custom processing needs can be demanding. Our advanced facilities provide tailored solutions, from precise dimension alterations to specific finish treatments, ensuring your requirements are met with utmost precision.
4. Accurate Shearing Services: Precision is key in stainless steel utilization, and our expert shearing services guarantee exactness in every cut, aligning perfectly with your specifications and quality expectations.
5. Cost-effectiveness is crucial in supplier selection. Our optimized procurement and cost-efficient processes ensure you receive not just premium-quality products but also the best prices, offering exceptional value for your investment.
409 Stainless Steel Sheet FAQ
1. Can you provide custom 409 stainless steel sheet?
Absolutely, we tailor 409 stainless steel sheet to your needs, ensuring your specifications for finishes, thickness, width, length and physical properties are met.
2. What's the delivery time?
Quick delivery for trial orders within a week, while regular orders range from 7-30 days.
3. How do you guarantee your 409 stainless steel plate/sheet quality?
Our 409 stainless steel plate/sheet undergo rigorous inspections during manufacturing, cutting, and packaging to ensure the highest quality. And 409 stainless steel sheet mill test certificate is also provided.
4. Can I get 409 stainless steel samples?
We can provide a 409 stainless steel sample for you to check the quality. Sample is free and you just pay the freight.
5. How to choose a 409 stainless steel supplier?
Selecting a supplier for 409 stainless steel sheets involves a series of steps to ensure quality and reliability:
Research Suppliers: Utilize online resources to identify reputable suppliers specializing in stainless steel, focusing on those with a strong industry presence and positive reviews.
Engage with Suppliers: Contact the suppliers to discuss their 409 stainless steel sheets offerings, including specifications, pricing, and availability. Consider requesting samples for quality assessment.
Assess Credibility: Evaluate the suppliers' credibility by reviewing their business credentials, certifications, and customer feedback, ensuring they adhere to industry standards and best practices.
Compare Quotations: Solicit and compare quotes from various suppliers, clarifying your specific needs such as quantity, specifications, and delivery details to make an informed decision.
Verify Quality Assurance: Investigate the suppliers' quality control processes and request relevant test reports or certifications to confirm the coils meet your required standards.
Negotiate Terms: Discuss and negotiate key terms, including pricing, delivery, and payment conditions, ensuring they align with your requirements.
Order Placement: Finalize the purchase by confirming the order details, such as the coil specifications, quantities, and agreed terms.
Arrange Payment: Agree on a secure payment method that suits both parties, ensuring all financial terms are clear and documented.
Coordinate Shipping: Organize the logistics, including packaging, shipping, and customs clearance, to ensure the coils are delivered as expected.
Inspect Upon Arrival: Upon receiving the coils, inspect the shipment for quality and accuracy, addressing any discrepancies with the supplier immediately.
6. What's the difference, 304 stainless steel vs 409?
In the realm of exhaust system components, 409 stainless steel actually sees more common usage than 304, primarily due to its specific properties that cater to the demands of such applications. While both 304 and 409 stainless steels are enhanced by chromium and other elements to increase their hardness, strength, and corrosion resistance, they serve distinct roles based on their composition and resultant characteristics.
409 Stainless Steel Features:
Contains chromium ranging from 10.5% to 11.75% and minimal nickel at 0.5%.
Due to its higher iron content, it is magnetic and somewhat more susceptible to corrosion than 304, yet it remains more rust-resistant than mild steel. Its excellent thermal properties and structural integrity under high temperatures make it the material of choice for automotive exhaust systems, despite its predisposition to surface rust.
304 Stainless Steel Attributes:
Boasts a chromium content of 18% to 20% and nickel between 8% to 10%, making it significantly more resistant to corrosion and rust.
It is less magnetic, particularly resistant to oxidation, and maintains its toughness across a wide range of temperatures. Although it possesses a superior corrosion resistance and lower iron content, making it ideal for food preparation and other applications requiring high levels of hygiene and durability, its higher cost and difficulty in manipulation make 409 the preferred option for exhaust systems.
The choice of 409 over 304 stainless steel for exhaust parts is influenced by 409's balance of cost, thermal stability, and adequate corrosion resistance suited for the high-temperature environment of exhaust systems. This doesn’t undermine 304’s value; its exceptional resistance and lower risk of contamination make it indispensable in food processing and medical applications. Thus, while 409 stainless steel is favored for exhaust systems due to its specialized properties and cost-effectiveness, 304 stainless steel's superior corrosion resistance and hygiene qualities render it the go-to material for a broad spectrum of other applications.
7. What is the 409 stainless steel sheet price?
Usually the approximate 409 stainless steel sheet price is more than 1050 US dollars/sheet. The actual price will fluctuate based on exchange rates, market conditions, etc. For details, please contact us for a quote.
More information of 409 material, please kindly browse to our article: What Is 409L Stainless Steel Composition, Applications, And Advantages
