CSA Z245.1:2018 pdf download.Steel pipe
1.1 General
CSA Z245.1 covers seamless pipe, electric-welded pipe (flash-welded pipe and low-frequency electric-welded pipe excluded) and submerged-arc-welded pipe primarily intended for use in oil or gas pipeline systems.
Notes:
1) Flash-welded pipe is pipe manufactured by a process using electric-resistance heating to produce a simultaneous coalescence over the entire area of the abutting edges and the application of pressure for joining.
2) Low frequency is less than 1 kHz.
1.2 Outside diameter, grade, and category
Note: It is not intended that pipe be available in all combinations of size, grade, category, and manufacturing process. The individual pipe manufacturers should be consulted to ascertain the availability of specific pipe items.
1.2.1 Outside diameter
This Standard covers pipe having specified outside diameters from 21.3 to 2032 mm. The standard outside diameters are given in Table B.1.
1.2.2 Grade
For other than sour service, this Standard covers pipe from Grade 241 to Grade 825. For sour service,this Standard covers pipe from Grade 241 to Grade 483.
Note: The standard grades are Grades 241, 290, 359, 386, 414, 448, 483, 550, 620, 690, and 825; however,intermediate grades may also be used.
1.2.3 Category
This Standard covers pipe in the following categories:
a) Category 1: pipe without requirements for proven pipe body notch-toughness properties;
b) Category 1: pipe with requirements for proven pipe body notch-toughness properties in the form of energy absorption and fracture appearance; and
c) Category 1 pipe with requirements for proven pipe body notch-toughness properties in the form of energy absorption.
1.3 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.
2 Reference publications
This Standard refers to the following publications, and where such reference is made, it shall be to the editions listed below, unless the user finds it more appropriate to use newer or amended editions of such publications. Some reference publications are supplemented, qualified, or both by specific requirements elsewhere in this Standard; reference publications should therefore be applied only in the context of this Standard.
Welding, submerged arc一an arc welding process that produces coalescence of metals by heating them with an arc or arcs between a bare metal electrode or electrodes and the work, with arc and molten metal shielded by a blanket of granular fusible material on the work.
Note: Pressure is not used and the filler metal is obtained from the electrode and sometimes from supplemental sources, e.g., fluxes, metal granules, or combinations thereof.CSA Z245.1 pdf download.