409 409L Stainless Steel Coil Supplier
- Thickness: 0.2mm – 200mm
- Width: 300mm – 2000mm, the narrowed products pls check in strip products
- Length: 500mm-12000mm
- Finish: 2B, 2D, Black, NO.1, Anneal pickling
- MOQ: 2MT
Product Description of 409&409L stainless steel coil
409 and 409L stainless steel coils are a kind of stainless steel material with excellent corrosion resistance and processing performance. They are widely used in various industrial fields, such as automotive, petroleum, and chemical, as important component materials.
409 stainless steel coil has good corrosion resistance and can maintain stable performance in harsh environments such as acidic, alkaline and salt spray. It also has good high-temperature strength and hardness and can maintain good mechanical properties at higher temperatures. In addition, 409 stainless steel coil has good processing performance, can be processed by cold rolling, hot rolling, welding, and other processes, and it is convenient to manufacture a variety of parts.
409L stainless steel coil is one kind of 409 series stainless steel, after special treatment and adjustment of alloying elements, its corrosion resistance and processing performance have been further improved. Compared with 409 stainless steel coil, 409L stainless steel coil has lower carbon content, which makes its welding performance and corrosion resistance more excellent. In addition, 409L stainless steel coil also has better low-temperature strength and toughness, which is suitable for some occasions that need to work at lower temperatures.
In terms of application, 409 and 409L stainless steel coils are mainly used in the manufacture of automobile exhaust pipes, chemical equipment, petroleum pipelines, and other occasions that require corrosion resistance and high strength. In addition, due to their good processing performance, they are also used to manufacture a variety of plates, tubes, profiles, and other parts.
production range of 409&409L stainless steel coil
-409 409L Cold Rolled Stainless Steel coil, Cold rolled 409 409L coils, 409 409L CRC
Thickness | 0.2mm – 8.0mm |
Width | 600mm – 2000mm, the narrowed products pls check in strip products |
Max coil weight | 25MT |
Coil ID | 508mm, 610mm |
Finish | 2B, 2D |
-409 409L Hot Rolled Stainless Steel coil, Hot Rolled 409 409L coil, 409 409L HRC.
Thickness | 1.2mm – 16mm |
Width | 600mm – 2000mm, the narrower products please check in strip products |
Max coil weight | 40MT |
Coil ID | 508mm, 610mm |
Finish | NO.1 |
specification of 409&409L stainless steel coil
chemical composition of 409&409L stainless steel coil
| Chemical Composition (wt. %) | 409 Stainless Steel | 409L Stainless Steel |
|---|---|---|
| Carbon (C) | 0.08 max | 0.03 max |
| Silicon (Si) | 1.00 max | 1.00 max |
| Manganese (Mn) | 1.00 max | 1.00 max |
| Phosphorus (P) | 0.045 max | 0.045 max |
| Sulfur (S) | 0.03 max | 0.03 max |
| Chromium (Cr) | 10.5 – 11.75 | 10.5 – 11.75 |
physical property of 409&409L stainless steel coil
| Physical Properties | 409 Stainless Steel | 409L Stainless Steel |
|---|---|---|
| Density (g/cm³) | 7.75 | 7.75 |
| Melting Point (°C) | 1450-1510 | 1450-1510 |
| Thermal Conductivity (W/mK) | 25.8 | 25.8 |
| Specific Heat (J/kg·K) | 460 | 460 |
| Electrical Resistivity (μΩ·m) | 0.60-0.65 | 0.60-0.65 |
| Modulus of Elasticity (GPa) | 220 | 220 |
| Poisson’s Ratio | 0.28 | 0.28 |
mechanical property of 409&409L stainless steel coil
| Mechanical Properties | 409 Stainless Steel | 409L Stainless Steel |
|---|---|---|
| Tensile Strength (MPa) | 380-560 | 380-580 |
| Yield Strength (0.2% offset) (MPa) | ≥ 205 | ≥ 175 |
| Elongation (%) | ≥ 22 | ≥ 25 |
| Hardness (Brinell, HB) | ≤ 207 | ≤ 170 |
difference between 409&409L stainless steel coil
Chemical Composition and Structure: 409 stainless steel is a ferritic stainless steel material that typically contains chromium elements. On the other hand, 409L stainless steel is chromium steel without nickel, belonging to the category of ferritic stainless steel. Due to the absence of nickel elements, the cost of 409L stainless steel is relatively lower.
Corrosion Resistance: Both have good corrosion resistance, especially in high-temperature and high-humidity environments. 409L stainless steel has better corrosion resistance and can withstand chloride corrosion, such as corrosion in seawater, salt lakes, and marine atmospheres.
Mechanical Properties: Both 409 and 409L stainless steels have high strength and good ductility. However, due to the addition of many alloy elements in 409L stainless steel, its strength and hardness may be further enhanced.
application of 409&409L stainless steel coil
application of 409 stainless steel coil
- Automotive Sector: 409 stainless steel coil is commonly used in automotive manufacturing for exhaust system components such as exhaust pipes. Its excellent heat resistance and corrosion resistance make it an ideal choice for this industry.
- Construction Sector: Due to its excellent corrosion resistance and strength, 409 stainless steel coil is also used in various structural and decorative components in the construction industry.
- Kitchenware and Tableware: Because of its high-temperature resistance and corrosion resistance, the 409 stainless steel coil is also used in the manufacturing of kitchenware and tableware, ensuring product safety and durability.
- Other Industrial Applications: 409 stainless steel coil is widely used in industries such as chemical, petroleum, papermaking, and in the manufacturing of various components.
application of 409L stainless steel coil
- Efficient Engines and Exhaust Systems in the Automotive Sector: Due to its excellent high-temperature resistance, the 409L stainless steel coil is particularly suitable for efficient engines and exhaust system components in automobiles, such as thermal actuators and impellers.
- Chassis and Heat Exchangers: Because of its high strength and good corrosion resistance, a 409L stainless steel coil is also commonly used in the manufacture of automobile chassis and heat exchangers.
- Motorcycle exhaust pipes and coal-carrying vehicles: The application scope of the 409L stainless steel coil is continuously expanding, and it is currently being used in the manufacturing of motorcycle exhaust pipes and coal-carrying vehicles, among other equipment.
- Other Sectors: Due to its low cost, good flexibility, and high yield rate, the 409L stainless steel coil is also used in various fields such as spin dryers, household heating stoves, and agricultural equipment.
Above is a brief introduction to our 409 and 409L stainless steel coils. Huaxiao Metal, a professional company with over 15 years of experience in exporting stainless steel products, boasts multiple advanced production lines and is committed to providing customers with the highest quality products. In addition to 409 and 409L stainless steel coils, we also offer a variety of other grades and forms of stainless steel products to meet your diverse needs. Whatever your procurement requirements may be, we are dedicated to providing you with the most professional service and competitive prices. If you have any questions or purchasing needs, please feel free to contact us. We look forward to working with you.
409&409L SS Crystalline characteristics
Solid-Liquid Phase of 409L Steel:
- The solid and liquid two-phase region in 409L steel is very narrow, less than 30°C.
- At elevated temperatures, there’s minimal γ phase present, resulting in significant supercooling during crystallization.
- Rapid nucleation occurs due to direct contact, leading to the formation of fine equiaxed crystals instead of columnar crystals.
Crystal Formation Process:
- Upon crystallization, fine grains rapidly form on the surface of 409L steel.
- The narrow temperature range in the liquid-solid two-phase zone prevents significant component overcooling and the growth of columnar crystals.
- Carbon and titanium diffuse to form titanium carbide particles, inhibiting the growth of columnar crystals.
Structural Characteristics of 409L Steel:
- The absence of columnar crystals results in a structure dominated by equiaxed crystals of varying sizes.
- At temperatures around 1100°C with higher carbon content, some carbides and chromium-depleted areas may appear, and a small amount of δ phase may form.
Effect on Performance:
- The low carbon content of 409L steel minimizes the impact of the δ phase on its performance.
- The absence of α → γ phase transition leads to the growth of coarse ferrite, resulting in reduced strength and the occurrence of elbow issues during slab cutting.
Issues Related to Grain Formation:
- Grain formation in 409L steel can lead to decreased performance due to the appearance of coarse structures affecting production.
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Address: RM557, NO.1388 Jiangyue Road, Shanghai China
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