ASME SA 335 Grade P91 Alloy Steel Seamless Pipes are Carbon Steel Pipes with subsequent addition of chromium, molybdenum and sometimes vanadium are known as chrome moly Pipes. ASME Specification alloy steel Pipes are used for high temperature service applications. Seamless Alloy Steel Pipes according to ASME SA 335 Grade P91 are reheated and furnished in full annlealed,isothermal annealed or normalised quenched and tempered condition. ASME SA 335 Grade P91 Alloy Steel Seamless Pipes have a typical chemistry with additions of 8.00-9.50 Chromium and 0.85-1.05 Molybdenum. Bearing minimum tensile strength of 415 Mpa ASME SA 335 Grade P91 Pipes have a minimum yield strength of 205 Mpa.

ASTM A335 P91 Alloy Seamless Steel Pipe

ASTM A335, ASTM A335 p91, ASTM A335 P91 Alloy Seamless Steel Pipe, seamless steel pipe, Steel pipe 

ASTM A335 P91 pipe shall be suitable for bending, flanging, and similar forming operations, and for fusion welding.

The steel material shall conform to chemical composition, tensile property, and hardness requirements.

Each length of pipe shall be subjected to the hydrostatic test. Also, each pipe shall be examined by a non-destructive examination method in accordance to the required practices.

The different mechanical test requirements for pipes, namely, transverse or longitudinal tension test, flattening test, and hardness or bend test are presented.Both ends of each crate will indicate the order no., heat no., dimensions, weight and bundles or as requested.