API 650 MATERIALS as per Canadian Standard. 4.2 PLATES 4.2.3 CSA Specifications Plate furnished to CSA G40.21 in Grades 260W/(38W), 300W(44W), and 350W/(50W) is acceptable within the limitations stated below. (If impact tests are required, Grades 260W/[38W], 300W/[44W], and 350W/[50W] are designated as Grades 260WT/[38WT], 300WT/[44WT], and 350WT/[50WT], respectively.) Imperial unit equivalent grades of CSA Specification G40.21, shown in parenthesis, are also acceptable. a) The W grades may be semi-killed or fully killed. b) Fully killed steel made to fine-grain practice must be specified when required. c) Elements added for grain refining or strengthening shall be restricted in accordance with Table 4.1. d) Plates shall have tensile strengths that are not more than 140 MPa (20 ksi) above the minimum specified for the grade. e) Grades 260W/(38W) and 300W(44W) are acceptable for plate to a maximum thickness of 25 mm (1 in.) if semikilled and to a maximum thickness of 40 mm (1.5 in.) if fully killed and made to fine-grain practice. Grade 350W(50W) is acceptable for plate to a maximum thickness of 45 mm (1.75 in.) (insert plates to a maximum thickness of 100 mm [4 in.]) if fully killed and made to fine-grain practice.
Posted on: Mon, 19 Jan 2015 23:54:12 +0000
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