CSA Z245.1-18 pdf download – Steel pipe.
4 General requirements 4.1 Product ordering requirements 4.1.1 Standard requirements The following information shall be included in purchase orders for pipe: a) the designation and year of publication of this Standard; b) quantity; c) grade; d) category (see Clause 1.2.3); e) specified pipe test temperature for Category II or III pipe (see Clauses 8.4.2 and 8.5.1.2); f) process of pipe manufacture (see Clause 1.1); g) specified outside diameter (see Clause 1.2.1); h) specified wall thickness (see Table 1 and Clause 10.1.1); i) nominal length (see Table 2 and Clause 10.5); j) end finish (see Clause 10.7); and k) delivery date and shipping instructions. Notes: 1) The relationship between pipe dimensions, weight classes, and schedule numbers for pipe up to 323.9 mm OD is given in Annex A. 2) The relationship between pipe sizes up to 2032 mm OD and the nominal sizes of matching components is given in Annex B. 3) A summary of destructive testing requirements is given in Annex C. ℗ 4.1.2 Optional requirements Where applicable, purchase orders shall include the following optional requirements: a) pipe expansion (see Clause 5.4.3); b) pipe weld and heat-affected zone notch toughness (see Clauses 5.4.6, 7.6, and 8.5); c) alternative transverse body tension test (see Clause 7.2.4.3); d) alternative transverse weld tension specimen preparation (see Clause 7.2.5.2); e) root guided-bend tests on electric-welded pipe (see Clause 8.3.1.2); f) increased absorbed energy acceptance criterion for Category II pipe (see Clause 8.4.4.2); g) increased absorbed energy acceptance criterion for Category III pipe (see Clause 8.4.5.2);h) CVN impact tests from weld zone of electric-welded Categories II and III pipe with a specified test temperature of -5 °C or higher (see Clause 8.5.2.1); i) CVN impact tests from the weld fusion line of electric-welded Categories II and III pipe (see Clause 8.5.2.2); j) alternative hydrostatic test calculation (see Clause 9.4.2); k) increased hydrostatic test pressure (see Clause 9.1); l) supply of mill-jointers (see Clause 10.6.1); m) alternative values for maximum number of jointers on an order item (see Clauses 10.6.2 and 10.6.4); n) pipe end bevel (see Clause 10.7.1.2); o) removal of outside weld reinforcement (see Clause 10.7.1.6); p) threaded and coupling details (see Clause 10.7.2.2); q) plant inspection by the purchaser (see Clause 11.2); r) alternative pipe end outside diameter measurement technique (see Clause 11.4.2.5); s) special or alternative tolerances on length (see Clause 11.4.6 and Table 2); t) marking location (see Clause 15.3); u) coating (see Clause 15.6); v) sour service (see Clause 16.1); w) hydrogen-induced cracking testing for sour service (see Clause 16.7); x) report of steelmaking process and casting method (see Clause 18.2); y) report of type of skelp rolling mill used (see Clause 18.3); z) alternative tolerances on wall thickness (see Table 3); aa) alternative tolerances on mass (see Table 4); and ab) elevated temperature service (see Clauses 17.1 and 17.2).
4.2 Joinability 4.2.1 Weldability In general, the weldability of pipe depends on the pipe’s chemical and mechanical properties, the pipe end dimensions, the welding procedure, and the welding conditions. Pipe shall be capable of being welded when the welding procedures are in accordance with the requirements of CAN/CSA-Z662. 4.2.2 Mechanical interference fit method Pipe specifically supplied with ends prepared for joining by the mechanical interference fit method shall be capable of being so joined when the joining procedures are in accordance with the requirements of CAN/CSA-Z662. 4.3 Rounding procedure Except as otherwise required by this Standard, to determine conformance with the specified requirements, observed or calculated values shall be rounded to the nearest unit in the last right-hand place of figures used in expressing the limiting value, in accordance with the rounding method of ASTM E29. 4.4 Quality program The manufacturers of slab/billet, hot rolled coil/plate and pipe shall comply with the requirements of a nationally- or internationally-recognized quality management system.
5 Materials and manufacture 5.1 Steelmaking process Pipe shall be made from open hearth, electric furnace, or basic oxygen process steel using ingot casting, pressure casting, or strand casting methods. 5.2 Deoxidation practice Pipe shall be made from semi-killed or killed steel. 5.3 Skelp 5.3.1 Skelp widths for helical seam pipe shall not be less than 0.8 times or more than 3.0 times the pipe’s specified outside diameter. 5.3.2 For welded pipe, a coil/plate rolling practice shall be defined and documented stating all critical variables (with tolerances) required to achieve the necessary mechanical properties in the finished pipe. The rolling practice shall be designed and controlled to ensure a suitable uniformity of properties along the entire length of plate/coil intended for manufacture of pipe and among the coil/plates rolled to the same rolling practice from the same heat lot.CSA Z245.1-18 pdf download.
