ASTM A335 P91 Alloy Steel Seamless Boiler Tube with 610mm OD and 30mm WT for High Pressure Power Plant Applications
Product Details
| Material Grade: | ASTM A335 P91 (9Cr-1Mo-V) | Outer Diameter: | 610mm |
|---|---|---|---|
| Wall Thickness: | 30mm | Length: | 6000-12000mm Or Custom |
| Manufacturing Process: | Seamless Hot Rolled / Cold Drawn | Application: | Superheater, Reheater, Main Steam Pipe |
| Max Service Temperature: | 650 Degree Celsius | Heat Treatment: | Normalized And Tempered |
| NDT Testing: | 100% UT, Eddy Current, Hydrostatic Test | ||
| Highlight |
P91 Alloy Steel Grade,610mm Superheater Tube,High Pressure 30mm WT |
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Product Description
- Enhanced Creep Strength: Vanadium and niobium microalloying provides superior long-term creep resistance at elevated temperatures
- Large Diameter Capability: Available up to 610mm OD with 30mm wall thickness for high-pressure steam circuits
- Full NDT Coverage: 100% ultrasonic testing, eddy current inspection, and hydrostatic pressure testing per ASME SA335 specification
- Normalized and Tempered: Precise heat treatment ensures uniform martensitic microstructure and optimal mechanical properties
- Traceability: Full mill test certificates with heat number traceability from steelmaking to final delivery
| Property | Value |
|---|---|
| Grade | ASTM A335 P91 / ASME SA335 P91 |
| Chemical Composition | C: 0.08-0.12, Mn: 0.30-0.60, Cr: 8.00-9.50, Mo: 0.85-1.05, V: 0.18-0.25 |
| Tensile Strength | ≥585 MPa |
| Yield Strength | ≥415 MPa |
| Elongation | ≥20% |
| Hardness | ≤250 HB |
- Ultra-supercritical boiler superheaters
- Reheaters
- Main steam piping
- High-temperature headers
- Pressure parts in thermal power plants operating at steam temperatures up to 620°C
Product Highlights
ASTM A335 P91 high-pressure alloy steel seamless boiler tube designed for superheater and reheater sections in ultra-supercritical power plants.
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