504 Stainless Steel Pipe: Exceptional Performance for High-Temperature Applications
Meta Description: Discover 504 stainless steel pipe with exceptional oxidation resistance up to 980°C. Cost-effective, high-performance pipe for high-temperature service. Available in seamless & welded.
Introduction
The 504 stainless steel pipe is a high-performance material engineered to withstand extreme temperatures, offering superior oxidation resistance and scaling resistance up to 980°C. Ideal for demanding applications, 504 stainless steel pipe is a cost-effective alternative to austenitic grades like 309 and 310, offering up to 50% savings without sacrificing performance. This makes it an excellent choice for industries requiring continuous high-temperature service, including furnace manufacturing, thermal oxidizers, and cement plants.
Compared to 309 and 310 stainless steel pipes, 504 stainless steel pipe provides higher value at lower cost. Its ferritic structure ensures stability in high-temperature environments, offering excellent thermal expansion resistance and weldability. Additionally, its exceptional resistance to sulfidation and carburization ensures long-term durability in harsh conditions, making it a trusted material for industries involved in petrochemical refining, glass manufacturing, and power generation.
Whether you require seamless pipes, welded pipes (EFW), or customized dimensions and finishes, 504 stainless steel pipe offers unmatched quality, reliability, and cost-efficiency.
Product Overview & Extreme Advantages
- Exceptional Oxidation Resistance: The 504 stainless steel pipe performs excellently in high-heat conditions, with resistance to oxidation up to 980°C, making it perfect for furnace and heat-exchanger applications.
- Cost-Efficiency: Compared to 309 and 310 pipes, the 504 stainless steel pipe offers 30–50% cost savings, providing a high-quality, affordable solution for your high-temperature piping needs.
- Ferritic Structure: Unlike austenitic stainless steel, 504 pipe maintains its ferritic structure at high temperatures, ensuring no phase changes and minimizing risks of embrittlement.
- Excellent Scaling Resistance: The pipe offers outstanding resistance to scaling and corrosion, even in the most extreme environments such as furnace tubes and kiln sections.
- Superior Weldability: 504 stainless steel pipe is weldable with the right filler, ensuring flexibility in a variety of manufacturing processes.
- Reduced Thermal Expansion: 504 pipe exhibits lower thermal expansion than austenitic stainless steel, offering better dimensional stability under fluctuating temperatures.
- Sulfidation and Carburization Resistance: The 504 pipe has excellent resistance to sulfidation and carburization, making it an ideal choice for high-sulfur and carbon-rich environments.
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 pipe is composed of 4.5–6.0% chromium, ensuring exceptional resistance to oxidation and corrosion. The low carbon content and molybdenum stabilization further enhance its performance, making it ideal for high-temperature applications.
Mechanical Properties
| Property | Value at Room Temperature | Value at 600 °C | Value at 800 °C | Value at 900 °C |
|---|---|---|---|---|
| Yield Strength (MPa) | 250 | 230 | 220 | 210 |
| Ultimate Tensile Strength (MPa) | 550 | 520 | 510 | 500 |
| Elongation (%) | 22 | 20 | 18 | 16 |
| Hardness (HRB) | 80 | 70 | 65 | 60 |
The 504 stainless steel pipe exhibits high tensile strength and good elongation even at elevated temperatures, making it ideal for applications requiring both strength and ductility. It also shows stable hardness over a wide range of temperatures.
High-Temperature Oxidation & Scaling Resistance
| Property | Value |
|---|---|
| Maximum Continuous Service Temperature (°C) | 980 |
| Intermittent Service Temperature (°C) | 1000 |
| Oxidation Resistance (g/m²) | 0.35 (at 1000°C for 1000 hours) |
| Scaling Resistance | Excellent up to 980°C |
| Creep Resistance at 900°C | 220 MPa |
The 504 stainless steel pipe is engineered to perform in continuous high-temperature environments. Its scaling resistance and oxidation resistance are superior, ensuring the pipe maintains its structural integrity in extreme heat applications like furnace tubes and thermal oxidizers.
504 vs 502 vs 410 vs 430 vs 309 Pipe Comparison
| Property | 504 Stainless Steel | 502 Stainless Steel | 410 Stainless Steel | 430 Stainless Steel | 309 Stainless Steel |
|---|---|---|---|---|---|
| Max Service Temperature (°C) | 980 | 980 | 800 | 870 | 1150 |
| Creep Resistance at 900°C | 220 MPa | 220 MPa | 190 MPa | 180 MPa | 250 MPa |
| Oxidation Resistance | Excellent | Excellent | Fair | Good | Excellent |
| Cost | Low | Low | Medium | Medium | High |
| Formability | Excellent | Excellent | Fair | Good | Good |
The 504 stainless steel pipe offers a better cost advantage over both 309 and 310 pipes while still maintaining excellent oxidation and creep resistance. This makes it the preferred material for industries that need performance at high temperatures without the associated high cost.
Available Types & Specifications
| Type | Seamless & Welded (EFW) |
|---|---|
| Size | 1/2″–48″ NPS |
| Wall Thickness | Sch 5S, 10S, 40S, 80S, 160, XXS |
| Standards | ASTM A268, A312, A358, A376, EN 10217-7 |
| Surface Finishes | Annealed & Pickled, Shot-blasted, Bright Annealed |
The 504 stainless steel pipe is available in seamless and welded (EFW) options. It is offered in a wide range of sizes from 1/2" to 48" NPS, and wall thicknesses from Sch 5S to XXS, with various finishes such as annealed & pickled, shot-blasted, and bright annealed.
High-Temperature Performance Guide
The 504 stainless steel pipe is designed to withstand high temperatures up to 980°C in continuous service. It offers superior scaling resistance and oxidation resistance, making it ideal for applications like furnace tubes, kiln tubes, and thermal oxidizer piping. We also provide performance data for sulfidation and carburization resistance, as well as recommended support spacing for high-temperature applications.
Major Applications
- Furnace tubes
- Radiant tubes
- Recuperator tubes
- Kiln tubes
- Soot-blower tubes
- Pyrolysis coils
- Cement kiln inlet tubes
- Glass lehr rollers
- Burner nozzle tubing
- Heat exchanger tubes in sulfuric acid plants
- Thermal oxidizer piping
- Refinery heater tubes
The 504 stainless steel pipe is used across multiple high-temperature industries. Its outstanding resistance to scaling, oxidation, and sulfidation makes it the ideal material for furnace systems, thermal oxidizers, and petrochemical refining systems.
Product Images
Hot-rolled 504 stainless steel pipes ready for shipment
Professional infographic 504 stainless steel pipe data sheet + oxidation resistance curve up to 1100°C
Real-application collage – 504 pipes used in furnace tubes, recuperator tubes, pyrolysis coils, and high-temperature components
Why We Are the Best 504 Stainless Steel Pipe Distributor
As the global No.1 504 stainless steel pipe supplier, we offer:
- Permanent stock of high-temperature 504 pipes for immediate delivery
- Direct mill contracts, ensuring the best prices and availability
- In-house pickling & solution annealing, ensuring optimal surface quality
- 100% ultrasonic & radiographic testing, ensuring superior quality control
- Full EN 10204 3.1/3.2 + PED 2014/68/EU certifications
- Custom cutting & beveling to meet your specific needs
- Fastest worldwide delivery and unbeatable prices
Packaging & Delivery Standards
We guarantee secure and efficient delivery with:
- Heavy wooden boxes and steel cradles
- End protectors to prevent damage during transport
- Full certification package with each shipment
FAQ Section
Q: What is the maximum continuous service temperature of 504 pipe? A: 504 stainless steel pipe can withstand continuous service up to 980°C.
Q: Is 504 stainless steel pipe magnetic? A: Yes, 504 stainless steel pipe is magnetic due to its ferritic structure.
Q: Can 504 pipe be welded, and what filler should be used? A: Yes, 504 pipe is weldable with appropriate filler materials.
Q: Does 504 suffer from sigma-phase embrittlement? A: No, 504 pipe does not experience sigma-phase embrittlement.
Q: Is 504 pipe suitable for cyclic high-temperature service? A: Yes, 504 stainless steel pipe is ideal for cyclic high-temperature service.
Conclusion + Urgent Call-to-Action
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