ASTM A335 P91 pipe is a seamless pipe suitable for high temperature applications. These pipes are made of ferritic alloy steel.
A335 P91 seamless pipe has good corrosion resistance and can be used for a long time in a variety of corrosive media. Its surface is specially treated, such as spraying, carburizing, etc., to further improve its corrosion resistance. Processing operations such as cutting, bending, welding, etc. can be performed.
The material characteristics of ASTM A335 Gr P91 alloy steel seamless pipe make it particularly suitable for occasions where the steam temperature exceeds 600℃, such as power plants, petroleum, chemical, electricity, construction and other industries.
Products Data
ASTM A335 American Society for Testing and Materials seamless ferritic alloy nominal pipe for high temperature use
Alloy Steel P91 Seamless Pipes Chemical Composition
| C, % | Mn, % | P, % | S, % | Si, % | Cr, % | Mo, % | V, % | N, % | Ni, % | Al, % | Nb, % |
| 0.08-0.12 | 0.3-0.6 | 0.02 max | 0.01 max | 0.2-0.5 | 8.0-9.5 | 0.85-1.05 | 0.18-0.25 | 0.03-0.07 | 0.4 max | 0.04 max | 0.06-0.10 |
Mechanical Properties of ASME SA335 P91 Seamless Pipes
| Tensile Strength , MPa | Yield Strength, MPa | Elongation, % | Hardness, HB |
| 585 min | 415 min | 20 min | 250 max |
ASTM A335 P91 Pipe Specification:
outer diameter: 57mm~762mm, wall thickness: 5.0~130mm
Hot-rolled pipe outer diameter 32~630mm. Wall thickness 2.5～75mm.
Outer diameter of cold rolled (cold drawn) tube 5～200mm. Wall thickness 2.5～12mm.
Production method: hot rolling, forging, delivery status: heat treatment.
Products display
ASTM A335 P91 High Pressure Alloy Steel Pipes
Why Choose GNEE
GNEE has the right to import and export by itself, and can process seamless steel pipes for export packaging such as painting, beveling, pipe caps, and galvanized steel band bundling. It can implement GB, ASTM, JIS, DIN and other standards.
GNEE products are sold well throughout the country and exported to dozens of countries and regions such as Southeast Asia, the Middle East, Europe and the United States, and enjoy a high reputation in domestic and foreign markets.
If you are looking for steel pipe, please contact us in time to get a quote! sales@gneetube.com
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