18Cr8Ni Stainless Steel Seamless Pipe 1.4301 TP304 for Fired Heater API 560
Yuhong Holding Group Co., Ltd. is a globally recognized manufacturer and exporter of premium quality industrial equipment. With 20 years of export experience, we proudly serve clients in over 80 countries, ranking among China's top five exporters of seamless pipes. Operating 55 advanced production lines across a sprawling 20,000 m² facility, and supported by over 110 skilled employees, we are committed to delivering the highest-quality products and exceptional service to our global partners.
One of our flagship products is the 18Cr8Ni Stainless Steel Seamless Pipe (1.4301 TP304), widely used in Fired Heaters conforming to API 560 standards. With excellent corrosion resistance, thermal stability, and mechanical properties, TP304 pipes are the ideal choice for demanding applications in the petrochemical and refinery industries.
Material Overview: TP304 Stainless Steel
TP304 is a versatile austenitic stainless steel grade, also known by its equivalent designation 1.4301 under EN standards. It is characterized by its 18% chromium (Cr) and 8% nickel (Ni) composition, which provides excellent corrosion resistance, high-temperature performance, and weldability.
Key Benefits of TP304 Stainless Steel
- Corrosion Resistance: Excellent resistance to oxidation and corrosion in both oxidizing and moderately reducing environments.
- High-Temperature Strength: Withstands temperatures up to 870°C, making it ideal for fired heater applications.
- Good Weldability: Easily welded without post-weld annealing in most applications.
- Versatility: Suitable for both plain (bare) tubes and finned tube applications in heat exchanger and fired heater systems.
Chemical Composition and Mechanical Properties
| Element | Composition (%) |
| Carbon (C) | ≤ 0.08 |
| Chromium (Cr) | 18.0 - 20.0 |
| Nickel (Ni) | 8.0 - 10.5 |
| Manganese (Mn) | ≤ 2.00 |
| Silicon (Si) | ≤ 1.00 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 |
| Property | Value |
| Tensile Strength | ≥ 515 MPa |
| Yield Strength | ≥ 205 MPa |
| Elongation | ≥ 35% |
| Hardness (HB) | ≤ 187 |
Applications in Fired Heater (API 560)
TP304 stainless steel seamless pipes serve as a crucial component in fired heaters, which are widely used in petrochemical, refinery, and power generation industries. These heaters rely on high-quality tubes to efficiently transfer heat under extreme temperature and pressure conditions.
Bare Tubes (Plain Tubes)
- Used in convection sections and radiant coils due to their excellent thermal conductivity and corrosion resistance.
Finned Tubes
- TP304 is a preferred base tube material for manufacturing finned tubes, enhancing heat transfer efficiency in fired heaters.
- Excellent mechanical properties ensure durability and performance over extended operational periods.
API 560-compliant fired heaters benefit from TP304’s high strength and resistance to oxidation, making it a reliable choice for critical applications.
Equivalent Grades of TP304
The following table lists equivalent standards for TP304 stainless steel:
| Standard | Grade |
| ASTM / ASME | TP304 |
| EN | 1.4301 |
| JIS | SUS304 |
| ISO | 304 |
Why Choose Yuhong Holding Group Co., Ltd?
At Yuhong Holding Group Co., Ltd., we combine state-of-the-art technology, rigorous quality control, and decades of experience to deliver premium stainless steel seamless pipes. Our TP304 pipes meet API 560 standards and are trusted by clients worldwide for their exceptional performance in critical industrial applications.
Contact us today to learn more about our 18Cr8Ni Stainless Steel Seamless Pipes (1.4301 TP304) or to discuss your specific project requirements. Trust Yuhong Holding Group Co., Ltd. to be your partner in industrial excellence.
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