scope:

General

This Standard covers the manufacturing of factory-made induction bends, primarily intended for use in oil or gas pipeline systems.

Size, grade, and category

Size

This Standard covers induction bends from outside diameters (ODs) 60.3 to 1524 mm (NPS 2 to NPS 60, see CSA Z245.11 Table A.1).

Grade

For other than sour service, this Standard covers bends from Grade 241 to Grade 690. For sour service, this Standard covers bends from Grade 241 to Grade 483.

Note: The standard grades are 241, 290, 359, 386, 414, 448, 483, 550, 620, and 690 (see Table 3); however, intermediate grades can also be used in accordance with Clause 8.2.2.

Category

This Standard covers induction bends in the following categories:

a) Category I: induction bends without requirements for proven notch toughness properties; and

b) Category II: induction bends with requirements for proven notch toughness properties.

Terminology

In this Standard, "shall" is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the Standard; "should" is used to express a recommendation or that which is advised but not required; and "may" is used to express an option or that which is permissible within the limits of the Standard.

Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.

Notes to tables and figures are considered part of the table or figure and may be written as requirements.

Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.