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ASTM A335 P91 Seamless Alloy Steel Pipe
ASTM A335 P91 is a ferritic alloy-steel seamless pipe designed for high-temperature services. It offers excellent mechanical properties, including high strength and toughness, along with superior oxidation and corrosion resistance at elevated temperatures. Commonly used in boiler tubes, superheaters, and heat exchangers.
ASTM: A335 P91ASME: SA335 P91GB: 12Cr1MoV
MaterialASTM A335 / ASME SA335
Thickness2.0 - 14 mm (up to 250 mm on request)
WidthN/A (Pipe Diameter: 1/2 NB - 60 NB / 19.05mm - 114.3mm+)
LengthMax 16000 mm (Single/Double Random)
MOQ1 Ton
Lead Time7-15 days
PortShanghai / Tianjin
Response within 24 hours
In Stock — Ready to Ship
| Material Grade | ASTM A335 / ASME SA335 | Standard | ASTM A335 / ASME SA335 |
| Thickness Range | 2.0 - 14 mm (up to 250 mm on request) | Width Range | N/A (Pipe Diameter: 1/2 NB - 60 NB / 19.05mm - 114.3mm+) |
| Length Range | Max 16000 mm (Single/Double Random) | MOQ | 1 Ton |
| Lead Time | 7-15 days | Port of Shipment | Shanghai / Tianjin |
| C | 0.08-0.12 | Si | 0.20-0.50 |
| Mn | 0.30-0.60 | P | ≤0.020 |
| S | ≤0.010 | Cr | 8.00-9.50 |
| Mo | 0.85-1.05 | V | 0.18-0.25 |
| Nb | 0.06-0.10 | Ni | ≤0.40 |
| Tensile Strength | ≥585 MPa | Yield Strength | ≥415 MPa |
| Elongation | ≥20% | Hardness | ≤250 HB |
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