what is schedule 80 pipe?schedule 80 steel pipe (sch 80) is an internationally used pipe wall thickness standard and is one of the pipe series specified by the asme b36.10/b36.19 standard. its core feature is the thickened pipe wall design, which is suitable for high pressure, high temperature or se

what is schedule 40 steel pipe?schedule 40 steel pipe (sch 40) is an internationally used pipe wall thickness standard and is one of the pipe series specified by asme b36.10 & b36.19 standards. it represents medium-walled steel pipes suitable for a variety of medium and low pressure applications

api tubing and casing sizes are standardized under api spec 5ct, which defines various dimensions for both steel casing and tubing used in oil and gas wells. octg casing pipe sizes range from 4 1/2" to 20" in diameter, while tubing sizes typically range from 1.05" to 4 1/2".husteel industry