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
ASTM A335 P91 Alloy Seamless 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