TP304 18Cr-8Ni Fin Tube 11-13Cr Fins for Fired Heater Convection Section
Yuhong Holding Group Co., Ltd. specializes in the manufacture of industrial equipment, including heat exchangers, fired heaters, and air coolers. With a commitment to quality and innovation, we provide our clients with high-performance products tailored to meet their specific needs in various industries.
TP304 18Cr-8Ni Chemical Composition
The TP304 fin tube is made from a stainless steel alloy known for its excellent corrosion resistance and strength. The chemical composition of TP304 (18Cr-8Ni) is as follows:
| Element | Composition (%) |
|---|---|
| Chromium (Cr) | 18 |
| Nickel (Ni) | 8 |
| Manganese (Mn) | 2 |
| Silicon (Si) | 1 |
| Carbon (C) | 0.08 max |
| Phosphorus (P) | 0.045 max |
| Sulfur (S) | 0.03 max |
Mechanical Properties of TP304
The mechanical properties of TP304 make it suitable for high-temperature applications, particularly in fired heaters. Key properties include:
| Property | Value |
|---|---|
| Yield Strength | 205 MPa |
| Tensile Strength | 520 MPa |
| Elongation | 40% |
| Hardness | 90 HRB |
Common Standards for Fin Tubes
TP304 fin tubes are available in various standards, including European and American designations. Common designations include:
| Standard | Designation |
|---|---|
| EN 10216-5 | 1.4301 |
| ASTM A213 | TP304 |
| ASTM A269 | TP304 |
Advantages of High-Frequency Welded Finned Tubes
High-frequency welding is a preferred method for manufacturing fin tubes due to several advantages:
Applications
The TP304 fin tube with 11-13Cr fins is primarily used in the convection section of fired heaters. Its applications include:
