Description
A335 P91 Seamless Pipe
Emirerri Steel is a trusted supplier of A335 P91 Seamless Pipes, engineered for high-temperature and high-pressure applications. Manufactured as per ASTM A335 / ASME SA335 standards, these ferritic alloy steel pipes are ideal for power plants, refineries, petrochemical industries, and thermal services. These pipes have good creep strength, oxidation resistance, and thermal stability, making them suitable for boiler tubes, superheater tubes, and heat exchangers.
Key Features:
- Grade: ASTM A335 P91 (UNS K91560)
- Type: Seamless, Hot Finished or Cold Drawn
- Size Range: 1/2″ NB to 24″ NB
- Wall Thickness: SCH 40 to SCH 160 / XXS
- Length: Single Random, Double Random & Custom Cut Lengths
- Ends: Plain End, Beveled End, Threaded
A335 P91 Chemical Composition
| Element | P91 |
|---|---|
| Carbon (C) | 0.08 – 0.12 |
| Manganese (Mn) | 0.30 – 0.60 |
| Phosphorus (P) | ≤ 0.020 |
| Sulfur (S) | ≤ 0.010 |
| Silicon (Si) | 0.20 – 0.50 |
| Chromium (Cr) | 8.0 – 9.5 |
| Molybdenum (Mo) | 0.85 – 1.05 |
| Vanadium (V) | 0.18 – 0.25 |
| Niobium (Nb) | 0.06 – 0.10 |
| Nitrogen (N) | ≤ 0.030 |
A335 P91 Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | ≥ 585 MPa |
| Yield Strength (0.2% offset) | ≥ 415 MPa |
| Elongation (L/T) | 20% / 20% |
| Hardness (HBW) | ≤ 250 |
Applications:
- Superheater & Reheater Tubes
- Boiler Tubes
- Heat Exchangers
- Nuclear and Fossil Fuel Power Plants
- Oil & Gas and Chemical Industries
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