504 Stainless Steel Coil: Superior High-Temperature Performance with Outstanding Oxidation Resistance
Meta Description: Discover the high-performance 504 stainless steel coil for high-temperature applications. Excellent oxidation resistance, cost-effective alternative to 309/310, and superior weldability.
Introduction
The 504 stainless steel coil is an advanced material specifically designed to perform exceptionally well in high-temperature environments. Offering outstanding oxidation resistance up to 980–1000 °C, it is the ideal choice for industries requiring durability under extreme heat conditions. This ferritic stainless steel grade is commonly used in furnace belts, heat shields, and exhaust systems, providing a cost-effective solution when compared to austenitic alloys like 309 and 310.
The 504 stainless steel coil is designed with a fully ferritic structure, offering superior thermal stability and resistance to scaling, making it the preferred option for continuous high-temperature processes. Its remarkable oxidation resistance ensures reliable performance over long periods of exposure to elevated temperatures, significantly reducing the risk of premature failure and maintenance costs.
This versatile material is highly formable, offering ease of fabrication into coils, strips, and other forms suitable for various manufacturing processes. It also has good weldability when appropriate fillers are used, making it suitable for a wide range of applications in industries such as heat treatment, petrochemical, and glass production.
With a lower cost than austenitic grades such as 310 and 309, 504 stainless steel coil offers a competitive advantage in terms of both performance and price, providing an excellent balance between cost-effectiveness and high-temperature durability.
Product Overview & Key Advantages
- Exceptional Oxidation Resistance: The 504 stainless steel coil offers superior resistance to oxidation up to 980–1000 °C, making it perfect for applications that require material stability at elevated temperatures.
- Cost-Effective: With a price point significantly lower than 309 and 310 stainless steel, 504 stainless steel coil provides excellent value for high-performance applications.
- Ferritic Structure: Its ferritic composition ensures excellent thermal stability and resistance to thermal expansion, making it ideal for high-temperature cyclic service.
- Superior Thermal Fatigue Resistance: The 504 stainless steel coil withstands frequent temperature fluctuations without degradation, ensuring longevity and performance.
- Good Weldability: Suitable for welding with the appropriate filler materials, this material is versatile and can be used to fabricate complex components for a variety of applications.
- Magnetic: As a ferritic alloy, 504 stainless steel coil is magnetic, making it suitable for applications where magnetic properties are required.
Chemical Composition
| Element | Percentage (%) |
|---|---|
| Chromium (Cr) | 4.5–6.0 |
| Carbon (C) | ≤ 0.03 |
| Molybdenum (Mo) | 0.5–1.0 |
| Nickel (Ni) | ≤ 0.5 |
| Iron (Fe) | Balance |
| Niobium (Nb) | ≤ 0.1 |
The 504 stainless steel coil is composed of 4.5–6.0% chromium, providing superior oxidation resistance and excellent durability at high temperatures. The inclusion of molybdenum and niobium ensures better high-temperature stability and resistance to carbide precipitation, further enhancing its overall performance.
Mechanical Properties
| Property | Value at Room Temperature | Value at 600 °C | Value at 800 °C | Value at 900 °C |
|---|---|---|---|---|
| Yield Strength (MPa) | 240 | 220 | 200 | 190 |
| Ultimate Tensile Strength (MPa) | 520 | 480 | 460 | 450 |
| Elongation (%) | 20 | 18 | 15 | 12 |
| Hardness (HRB) | 85 | 75 | 70 | 65 |
The 504 stainless steel coil maintains strong mechanical properties even at elevated temperatures. With high tensile strength and good elongation at both room temperature and at 600 °C, 800 °C, and 900 °C, it is capable of withstanding extreme thermal conditions without compromising structural integrity.
Physical Properties & Oxidation Resistance
| Property | Value |
|---|---|
| Thermal Conductivity (W/m·K) | 24 |
| Coefficient of Thermal Expansion (μm/m·K) | 10.5 × 10⁻⁶ |
| Density (g/cm³) | 7.7 |
| Magnetic | Yes |
| Scaling Resistance | Up to 980–1000°C |
With a low coefficient of thermal expansion and a scaling resistance up to 1000°C, the 504 stainless steel coil remains dimensionally stable even in fluctuating temperature environments. Its magnetic properties also make it suitable for certain applications that require magnetism.
504 vs 502 vs 410 vs 430 vs 309 Coil Comparison
| Property | 504 Stainless Steel | 502 Stainless Steel | 410 Stainless Steel | 430 Stainless Steel | 309 Stainless Steel |
|---|---|---|---|---|---|
| Max Service Temperature (°C) | 1000 | 1000 | 800 | 870 | 1150 |
| Oxidation Resistance | Excellent | Excellent | Fair | Good | Excellent |
| Cost | Low | Low | Medium | Medium | High |
| Formability | Excellent | Excellent | Fair | Good | Good |
| Weldability | Good | Good | Fair | Good | Good |
The 504 stainless steel coil outperforms 410 and 430 grades in terms of oxidation resistance and high-temperature performance. Compared to 309, it is more cost-effective while providing nearly identical high-temperature stability, making it the ideal alternative for many applications.
Available Specifications
| Thickness (mm) | Width (mm) | ID (mm) | Finish Options |
|---|---|---|---|
| 0.3–8.0 | 20–1500 | 300/400/508 | 2B, 2D, No.1 Hot-Rolled, Pickled, Bright Annealed |
Our 504 stainless steel coil is available in a variety of thicknesses, widths, and finishes to meet your specific manufacturing needs. Whether you're looking for standard dimensions or customized forms, we can deliver high-quality material tailored to your requirements.
High-Temperature Performance Guide
The 504 stainless steel coil can handle both continuous and intermittent high-temperature applications. It is capable of withstanding oxidizing environments up to 1000 °C, ensuring that it maintains its integrity even after prolonged exposure to extreme heat. To achieve the best performance, it is recommended to stress-relieve the coil at 750–800°C and anneal it at 850–950°C.
Major Applications
The 504 stainless steel coil is ideal for applications that require resistance to high heat and oxidation. Some of the most common uses include:
- Furnace conveyor belts
- Heat-treatment trays
- Annealing cover strips
- Recuperator tubes
- Kiln rollers
- Thermal oxidizer belts
- Glass lehr belts
- Soot-blower tubes
- High-temperature springs
- Exhaust system components
- Petrochemical coil tubing
Its exceptional properties make it a go-to choice for industries such as heat treatment, petrochemical, glass manufacturing, and more.
Product Images
Hot-rolled 504 stainless steel coil ready for shipment
Professional infographic 504 stainless steel coil data sheet + oxidation resistance curve up to 1100°C
Real-application collage – 504 coils used in furnace belts, heat-treatment trays, recuperator tubes, and high-temperature components
Why We Are the Best 504 Stainless Steel Coil Distributor
We are proud to be the best 504 stainless steel coil distributor, offering:
- Permanent Stock of High-Temp 504 Coils: We maintain a large inventory of 504 stainless steel coils, ensuring that your orders are met with short lead times.
- Direct Mill Sourcing: Our strong relationships with steel mills allow us to offer competitive pricing and rapid delivery.
- Precision Slitting & Bright Annealing: Our in-house slitting services ensure coils are cut to your exact specifications, with ±0.03 mm accuracy. Bright annealing ensures the highest-quality finish.
- Advanced Testing: All coils undergo rigorous ultrasonic testing and PMI testing to ensure they meet the highest standards of quality.
- Global Delivery: With fast worldwide shipping, we ensure that your 504 stainless steel coil reaches you on time, no matter your location.
- Competitive Pricing: We offer the most competitive 504 stainless steel coil price in the market, without compromising on quality.
Packaging & Delivery Standards
We follow strict packaging and delivery standards to ensure the safe transport of your 504 stainless steel coil:
- Export Wooden Saddles: Coils are securely packed on wooden saddles to prevent damage during transport.
- VCI Paper: VCI paper is used to protect coils from corrosion during shipping.
- Steel Edge Protection: Steel edges are safeguarded to avoid damage in transit.
- Weight Limits: We follow strict weight limits to ensure safe handling and delivery.
FAQ Section
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What is the maximum continuous service temperature of 504 stainless steel coil?
The 504 stainless steel coil can withstand up to 1000°C for continuous service. -
Is 504 stainless steel coil magnetic? Yes, 504 stainless steel coil is magnetic due to its ferritic structure.
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When should I choose 504 coil over 410 or 430 coils? Choose 504 stainless steel coil when you require superior oxidation resistance and thermal stability at higher temperatures, with a cost-effective option compared to 309/310.
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Can 504 coil be welded, and what filler should be used? Yes, 504 stainless steel coil can be welded using fillers such as ER-430.
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Does 504 coil suffer sigma-phase embrittlement? No, 504 stainless steel coil does not suffer from sigma-phase embrittlement.
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What is the recommended heat treatment for 504 coil? Stress-relieve at 750–800°C and anneal at 850–950°C.
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What is the minimum order quantity for 504 stainless steel coil? The minimum order quantity varies. Please contact us for more details.
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How long is the lead time for 2B finish 504 coil? Lead times are typically 2–4 weeks, depending on stock availability.
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Is 504 coil suitable for cyclic high-temperature service? Yes, 504 stainless steel coil is designed for cyclic high-temperature environments.
Conclusion + Urgent Call-to-Action
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