

Add to Cart
High-Frequency Welding (HFW) finned pipes made from ASTM A312 TP347H stainless steel are specifically designed for Heat Recovery Steam Generators (HRSG). HRSG systems are critical components in combined-cycle power plants, capturing waste heat from exhaust gases to generate steam for energy efficiency. The use of TP347H stainless steel ensures excellent resistance to high temperatures, corrosion, and oxidation.
Chemical Composition (ASTM A312 TP347H Stainless Steel) | |||||||||
Content (%) | Carbon (C) | Manganese (Mn) | Phosphorus (P) | Sulfur (S) | Silicon (Si) | Chromium (Cr) | Nickel (Ni) | Molybdenum (Mo) | Niobium (Nb) |
Element | ≤ 0.04% | 1.00 – 2.00% | ≤ 0.045% | ≤ 0.030% | ≤ 0.75% | 17.00 – 19.00% | 9.00 – 13.00% | ≤ 0.30% | 1.00 – 1.50% |
Mechanical Properties (ASTM A312 TP347H Stainless Steel) | ||||||
Property | Tensile Strength | Yield Strength | Elongation | Impact Energy | Hardness | Proof Stress |
Value | ≥ 515 MPa | ≥ 205 MPa | ≥ 40% | ≥ 70 J (at -196°C) | ≤ 170 HB | ≥ 205 MPa |