Astm A335/ASME SA335 P91 Alloy Steel Seamless Pipes Manufacturers, Suppliers, Stockists, Exporter

There are two types of ASTM A335 P91 Alloy / ASME SA335 P91 Pipe. Type 1 and type 2 are the two types. Most of the time, type 2 is used. Major components include carbon, manganese, phosphorus, sulfur, silicon, 8% chromium, and molybdenum. Multi Metals (India) manufactures ASTM A335 P91 Alloy / ASME SA335 P91 Pipe in different dimensions and shapes. 

The composition contains more alloying elements in smaller quantities, including vanadium, nitrogen, nickel, aluminum, columbium, titanium, and zirconium. ASTM A335 P91 Alloy is the standard for the pipes. However, forged or bored pipes can also fall under A369.

Material ASTM A335 P91 Alloy Pipe is used in power generation, gas processing equipment, boilers, heaters, and reheater lines, as well as in most oil services. Pipes must be preheated before welding. For these pipes, post-baking is also an option. After welding, the material must also be cooled below 100 degrees Celsius. 

Due to the composition of the material, the P91 Seamless Pipe has a minimum tensile strength of 585MPa and a minimum yield strength of 415MPa. Most of the strength and corrosion resistance of P91 Steel Pipe types is attributed to the chromium and molybdenum contents.

Nominal bore sizes range from 1/8 inch to 24 inch. Schedules ranging from sch20 to XXS are determined by the outer diameter and wall thickness. The wall thickness of P91 Chrome Pipe can range from 2mm to 14mm and the length can be up to 16000mm. Round, square, rectangular, hydraulic, and other forms of pipes with plain, beveled, and threaded ends are available.

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