steel pipes

Plain- end Line Pipe Dimensions, Weights per Unit Length, and Test Pressures for Sizes 12 3/4" (SI Units) (API Standard)(1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13) (14) Size Specified Outside Diameter D (mm) Specified Wall Thickness t (mm) Plain-end Weight per Unit LengthWpe(mm) Calculated Inside Diameter" of (mm) Minimum Test Pressure ( kPa x 100) Grade A Grade B Grade X42 Grade X46 Grade X52 Grade X56 Grade X60 Grade X65 Grade 70 12 3/4 323.9 4.4 34.67 315.1 Std. 34 39 67 73 83 89 96 103 112 Alt 42 49 67 73 83 89 96 103 112 12 3/4 323.9 4.8 37.77 314.3 Std. 37 43 73 80 90 97 104 113 122 Alt 46 54 73 80 90 97 104 113 122 12 3/4 323.9 5.2 40.87 313.5 Std. 40 46 79 87 98 105 113 122 132 Alt 50 58 79 87 98 105 113 122 132 12 3/4 323.9 5.6 43.96 312.7 Std. 43 50 85 93 106 113 122 132 142 Alt 54 63 85 93 106 113 122 132 142 12 3/4 323.9 6.4 50.11 311.1 Std. 49 57 97 106 121 130 139 150 162 Alt 61 71 97 106 121 130 139 150 162 12 3/4 323.9 7.1 55.47 309.7 Std. 54 63 108 118 134 144 154 167 180 Alt 68 79 108 118 134 144 154 167 180 12 3/4 323.9 7.9 61.56 308.1 Std. 61 71 120 131 149 160 172 Alt 76 88 120 131 149 160 172 12 3/4 323.9 8.4 65.35 307.1 Std. 64 75 128 140 158 Alt 81 94 128 140 158 12 3/4 323.9 8.7 67.62 306.5 Std. 67 78 132 145 Alt 83 97 132 145 12 3/4 323.9 9.5 73.65 304.9 Std. 73 85 Alt 91 106 12 3/4 323.9 10.3 79.65 303.3 Std. 79 Alt. 99