ASME SA335 P11 Seamless Alloy Steel Pipe for Power Plant & Petrochemical Service
YUHONG GROUP is a trusted global supplier of premium alloy steel pipes, specializing in ASME-certified solutions for critical industrial applications. Our ASME SA335 P11 Seamless Alloy Steel Pipes are precision-engineered to meet the demanding requirements of modern power and process industries.
Heat Treatment Requirements for ASME SA335 P11 Alloy Steel Pipe
| Parameter | Requirement | Notes |
| Grade | P11 (1.25Cr-0.5Mo) | Ferritic alloy steel |
| Heat Treat Type | Full/Isothermal Anneal or Normalize & Temper | Multiple options permitted |
| Subcritical Annealing | 1200°F [650°C] | Minimum temperature requirement |
Chemical Composition of ASME SA335 P11 Alloy Steel Pipe
| Element | UNS K11597 | Requirement (%) | Notes |
| Carbon (C) | 0.05-0.15 | Range | Controlled low carbon |
| Manganese (Mn) | 0.30-0.60 | Range | - |
| Phosphorus (P) | ≤0.025 | Max | Impurity control |
| Sulfur (S) | ≤0.025 | Max | Impurity control |
| Silicon (Si) | 0.50-1.00 | Range | - |
| Chromium (Cr) | 1.00-1.50 | Range | Key alloy element |
| Molybdenum (Mo) | 0.44-0.65 | Range | Key alloy element |
Tensile Requirements for ASME SA335 P11 Alloy Steel Pipe
| Property | Requirement | Unit | Notes |
| Tensile Strength (min) | 60 | ksi | Equivalent to 415 MPa |
| Yield Strength (min) | 30 | ksi | Equivalent to 205 MPa |
| Material Grade | P11 | - | 1.25Cr-0.5Mo Alloy Steel |
Key Advantages of ASME SA335 P11 Alloy Steel Pipe
