YUHONG specialize in the design and manufacturing of pressure vessels and heat exchangers, holding ASME U Stamp and TEMA certifications. Our production strictly adheres to ASME Section VIII, Division 1 and TEMA standards, delivering high-performance equipment for industries including petrochemicals, chemicals, power generation, pharmaceuticals, and environmental protection.
| Property | Description |
|---|---|
| Chemical Composition | - Chromium (Cr): 18.0–20.0% - Nickel (Ni): 8.0–11.0% - Carbon (C): ≤0.08% - Manganese (Mn): ≤2.00% - Silicon (Si): ≤1.00% |
| Mechanical Properties | - Tensile Strength: ≥515 MPa - Yield Strength: ≥205 MPa - Elongation: ≥35% - Hardness: ≤92 HRB |
| Corrosion Resistance | Excellent in humid/oxidizing environments; |
| Weldability | Superior weldability; |
| Thermal Conductivity | For heat transfer requirements. |
| Advantage |
|---|
| 1. High Material Utilization |
| 2. High Production Efficiency |
| 3. Lower Equipment Investment |
| 4. Stable Pricing |
| 5. Scalability |
| Parameter | SA249 TP304 Welded Tubes | SA213 TP304 Seamless Tubes |
|---|---|---|
| Material Cost | Lower (thin-plate welding, minimal waste). | Higher |
| Pressure Tolerance | low-to-medium pressure | For high-pressure/temperature (e.g., boilers). |
| Corrosion Resistance | acidic/oxidizing environments. | acidic/oxidizing environments. |
| Economy | Cost-effective for large projects. | Higher cost. |
| Weld Quality | ERW/TIG | avoids weld-related risks. |
| Applications | FGD systems | extreme conditions. |
