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ASTM A139 is a standard specification for electric-fusion (arc)-welded steel pipe (NPS 4 and over).

UNS S31635 refers to a specific grade of stainless steel known as Grade 316Ti.

ASTM A182 F44 socket welding pipe fittings are an important accessory for high-pressure pipeline connections. They are mainly formed by die-forged blanks of round steel or steel ingots.

ASTM A335 P11 seamless steel pipe is a steel grade under ASTM standard, used in fields such as high pressure boiler and petrochemical industry.