At Yuhong Group Co., Ltd., we specialize in the engineering and supply of high-performance thermal equipment components. With decades of experience in the heat exchanger industry, we have established ourselves as a technical authority in heat exchanger tubing solutions. Whether for extreme temperature fluctuations or highly corrosive media, our expertise lies in selecting and manufacturing tubing that ensures structural integrity under ASME standards. We provide not just products, but engineered solutions that maximize heat transfer efficiency and extend equipment lifespan.
ASME SA268 TP410 is a martensitic/ferritic stainless steel characterized by its excellent corrosion resistance and high strength. Below is the chemical composition requirement strictly conforming to the ASME SA268 standard:
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.15 max |
| Manganese (Mn) | 1.00 max |
| Phosphorus (P) | 0.040 max |
| Sulfur (S) | 0.030 max |
| Silicon (Si) | 1.00 max |
| Chromium (Cr) | 11.50 - 13.50 |
To ensure seamless structural integrity, our TP410 tubing undergoes rigorous manufacturing processes:
Beyond TP410, Yuhong Group maintains an extensive inventory and fabrication capability for various high-alloy materials. Our facility is equipped to handle:
| Physical Property | Typical Value (Standardized) |
|---|---|
| Tensile Strength (min) | 60 ksi (415 MPa) |
| Yield Strength (min) | 30 ksi (205 MPa) |
| Elongation (2") | 20% min |
ASME SA268 TP410 seamless tubes are primarily engineered for:
Dimensional Accuracy: Controlled wall thickness deviation (within ±10%) ensures uniform heat transfer coefficients across the entire bundle.
Microstructural Consistency: Our controlled cooling rates prevent localized hardening, reducing the risk of Stress Corrosion Cracking (SCC) in operating environments.
A: TP410 is a martensitic grade. While it offers excellent corrosion resistance, it is prone to hardening if not preheated and post-weld heat-treated (PWHT) properly. Our technical team provides specific welding procedures (WPS) to ensure the joint strength matches the tube parent metal.
A: A smooth inner surface (low Ra value) is crucial. Our cold-drawing process ensures a refined inner finish, which significantly reduces the accumulation of scale and sediment, thereby maintaining high thermal efficiency over longer maintenance cycles.
