1.1 This specification applies to electric fusion ( arc) welded, electric resistance welded and induction welded carbon steel pipes for water, gas and sewage of nominal size from 150 to 2 000 mm and having joints with plain or bevelled ends for butt welding or sleeve welded joints ( swelled and plain end ).
Note — Nominal size is the same as nominal diameter.
1.2 This standard does not cover steel pipes with screwed joints and require-ments for specials, such as collars, tees and bends, etc.
1.3 In this standard, the pipes are designated by the method of manufacture followed by the number corresponding to the minimum specified tensile strength in MPa.
Example:
EFW 410 indicates electric fusion ( arc ) welded steel pipe having a minimum tensile strength of 410 MPa.
IS 3589-1981 history
1981IS 3589-1981 Specification for electric welded steel pipes for water, gas and sewage (nominal sizes 150 to 2000 mm)