The ASME SA335 pipes are classified into different grades depending on different factors. P22 is one of the grades that are covered under ASME SA335 specification of alloy steel pipes used for the high temperature services. The pipes of these grades are strong, tensile and can withstand high pressure. They are also capable of resisting corrosion and can be used for welding, flanging and other such operations. These pipes are said to be tolerant to the variations in its micro structure. The properties of these pipes make them in demand in the industrial as well as other sectors.

The ASME SA335 P22 pipe is best suitable for the pharmaceutical industries, chemical industries and equipments etc. They are used to make sea water equipments and form a very important part of pulp and paper industry. They help in gas processing and are used as heat exchangers, condensers and for power generation. The pipes of this grade are also used widely in off shore oil drilling companies and other such industries.

These pipes are available in specifications of ASTM A335 and ASME SA 335 with the ASME, ASTM and API dimensions. It can be available in sizes of 1/8" NB to 30" NB. Its length could be up to 13500 mm. these pipes are available in seamless, welded and fabricated pipes with round and hydraulic form. Their ends can also be different such as beveled end, plain end, threaded etc. however; these specifications can be altered depending on manufacturer to manufacturer. Their tensile strength and yield strength is 415 min and 205 min respectively with the elongation of 30 min.