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CLASS 1500 INSIDE DIAMETER OUTSIDE DIAMETER CENTRE LINE SPACING THICKNESS MIN WEB WIDTH ID OD A T B 16 61 83 6.4 38 21 67 89 9.7 41 27 76 102 9.7 56 35 86 111 9.7 64 41 95 124 12.7 70 53 140 165 12.7 70 63 162 191 15.8 76 78 172 203 19.1 76 102 206 241 22.4 89 128 251 292 28.5 89 154 279 318 35.1 89 203 349 394 41.1 102 255 432 483 50.8 114 303 518 572 60.5 114 333 575 635 66.6 127 381 638 705 76.2 133 429 702 775 85.9 146 478 752 832 95.3 152 575 899 991 111.3 178

ASME B 16.5-2003 CLASS 400 CLASS 400 FLANGE  THICKNESS LTB DRILLINE DATA CLASS 400 NOMINAL  PIPE SIZE FLANGE  OUTSIDE  DIAMETER THICKNESS  OF  FLANCE  MIN BOSSED LENGTH WELD  NECK LENGTH * LAP JOINT LENGTH LONG  WELD NECK LENGTH PITCH CIRCLE DIAMETER BOLT HOLE DIAMETER NUMBER OF BOLT HOLES NOMINAL  PIPE SIZE MM INCH OD T & T1 L L1 L2 L3 PCD H # MM INCH 15 1/2 95 14.3 29 59 22 229 66.7 16 4 15 1/2 20 3/4 115 15.9 32 64 25 229 82.6 20 4 20 3/4 25 1 125 17.5 34 69 27 229 88.9 20 4 25 1 32 1 1/4 135 20.7 36 74 29 229 98.4 20 4 32 1 1/4 40 1 1/2 155 22.3 39 77 32 229 114.3 22 4 40 1 1/2 50 2 165 25.4 44 80 37 229 127 20 8 50 2 65 2 1/2 190 28.6 48 86 41 229 149.2 22 8 65 2 1/2 80 3 210 31.8 53 90 46 229 168.3 22 8 80 3 90 3 1/2 230 35 56 93 49 229 184.2 26 8 90 3 1/2 100 4 255 35 58 96 51 229 200 26 8 100 4 125 5 280 38.1 61 109 54 305 235 26 8 125 5 150 6 320 41.3 64 110 57 305 269.9 26 12 150 6 200 8 380 47.7 75 124 68 305 330 30 12 200 8 250 10 445 54 80 131 102 305 387.5 32 16 250 10 300 12 520 57.2 86 144 108 305 450.8 35 16 300 12 350 14 585 60.4 91 156 117 305 514.4 35 20 350 14 400 16 650 63.5 101 159 127 305 571.5 38 20 400 16 450 18 710 66.7 105 172 137 305 628.6 38 24 450 18 500 20 775 69.9 109 175 146 305 685.8 42 24 500 20 600 24 915 76.2 121 182 159 305 812.8 48 24 600 24 NOTES:*Schedule of weld neck to be indicated.

ASME B 16.5-2003 CLASS 600 FLANGE  THICKNESS LTB DRILLINE DATA CLASS 600 FLANGE  OUTSIDE  DIAMETER THICKNESS  OF  FLANCE  MIN BOSSED LENGTH WELD  NECK LENGTH * LAP JOINT LENGTH LONG  WELD NECK LENGTH PITCH CIRCLE DIAMETER BOLT HOLE DIAMETER NUMBER OF BOLT HOLES NOMINAL  PIPE SIZE OD T & T1 L L1 L2 L3 PCD H # MM INCH 95 14.3 29 59 22 229 66.7 16 4 15 1/2 115 15.9 32 64 25 229 82.6 20 4 20 3/4 125 17.5 34 69 27 229 88.9 20 4 25 1 135 20.7 36 74 29 229 98.4 20 4 32 1 1/4 155 22.3 39 77 32 229 114.3 22 4 40 1 1/2 165 25.4 44 80 37 229 127 20 8 50 2 190 28.6 48 86 41 229 149.2 22 8 65 2 1/2 210 31.8 53 90 46 229 168.3 22 8 80 3 230 35 56 93 49 229 184.2 26 8 90 3 1/2 275 38.1 61 109 54 229 215.9 26 8 100 4 330 44.5 67 121 60 305 266.7 29 8 125 5 355 47.7 74 124 67 305 292.1 29 12 150 6 420 55.6 83 140 76 305 349.2 32 12 200 8 510 63.5 93 159 111 305 431.8 35 16 250 10 560 66.7 99 163 117 305 489 35 20 300 12 605 69.9 101 172 127 305 527 38 20 350 14 685 76.2 113 185 140 305 603.2 42 20 400 16 745 82.6 124 191 152 305 654 45 20 450 18 815 88.9 134 197 165 305 723.9 45 24 500 20 940 101.6 147 210 184 305 838.2 51 24 600 24 NOTES:*Schedule of weld neck to be indicated.

ASME B 16.5-2003 CLASS 300 CLASS 300 FLANGE THICKNESS LTB DRILLINE DATA CLASS 300 NOMINAL  PIPE SIZE FLANGE  OUTSIDE  DIAMETER THICKNESS  OF  FLANCE  MIN THICKNESS  OF  LAP  MIN BOSSED LENGTH WELD  NECK LENGTH (Refer Note.1 ) LAP JOINT LENGTH LONG  WELD NECK LENGTH (Refer Note.2 ) PITCH CIRCLE DIAMETER BOLT HOLE DIAMETER NUMBER OF BOLT HOLES NOMINAL  PIPE SIZE MM INCH OD T T1 L L1 L2 L3 PCD H # MM INCH 15 1/2 95 12.7 14.3 22 51 21 229 66.7 16 4 15 1/2 20 3/4 115 14.3 15.9 25 56 24 229 82.6 20 4 20 3/4 25 1 125 15.9 17.5 27 60 25 229 88.9 20 4 25 1 32 1 1/4 135 17.5 19.1 27 64 25 229 98.4 20 4 32 1 1/4 40 1 1/2 155 19.1 20.7 30 67 29 229 114.3 23 4 40 1 1/2 50 2 165 20.7 22.3 33 68 32 229 127 20 8 50 2 65 2 1/2 190 23.9 25.5 38 75 37 229 149.2 23 8 65 2 1/2 80 3 210 27 28.6 43 78 41 229 168.3 23 8 80 3 90 3 1/2 230 28.6 30.2 44 79 43 229 184.2 23 8 90 3 1/2 100 4 255 30.2 31.8 48 84 46 229 200 23 8 100 4 125 5 280 33.4 35 49 97 49 305 235 23 8 125 5 150 6 320 35 36.6 51 97 51 305 269.9 23 12 150 6 200 8 380 39.7 41.3 60 110 60 305 330.2 26 12 200 8 250 10 445 46.1 47.7 65 116 95 305 387.4 29 16 250 10 300 12 520 49.3 50.9 73 129 102 305 450.8 32 16 300 12 350 14 585 52.4 54 76 141 111 305 514.4 32 20 350 14 400 16 650 55.6 57.2 82 144 121 305 571.5 35 20 400 16 450 18 710 58.8 60.4 88 157 130 305 628.6 35 24 450 18 500 20 775 62 63.6 95 160 140 305 685.8 35 24 500 20 600 24 915 68.3 69.9 106 167 152 305 812.8 42 24 600 24 NOTES: *Schedule of weld neck to be indicated.

ASME B 16.5-2003 CLASS 2500 FLANGE  THICKNESS LTB DRILLINE DATA CLASS 2500 FLANGE  OUTSIDE  DIAMETER THICKNESS  OF  FLANCE  MIN BOSSED LENGTH WELD  NECK LENGTH * LAP JOINT LENGTH LONG  WELD NECK LENGTH PITCH CIRCLE DIAMETER BOLT HOLE DIAMETER NUMBER OF BOLT HOLES NOMINAL  PIPE SIZE OD T & T1 L L1 L2 L3 PCD H # MM INCH 135 30.2 47.0 80 40 229 88.9 22 4 15 1/2 140 31.8 50.0 86 43 229 95.2 22 4 20 3/4 160 35 55.0 96 48 229 108 26 4 25 1 185 38.1 59.0 102 52 229 130.2 29 4 32 1 1/4 205 44.5 67.0 118 60 229 146 32 4 40 1 1/2 235 50.9 77.0 134 70 229 171.4 29 8 50 2 265 57.2 86.0 150 79 229 196.8 32 8 65 2 1/2 305 66.7 175 92 229 228.6 35 8 80 3 355 76.2 197 108 305 273 42 8 100 4 420 92.1 235 130 305 323.8 48 8 125 5 485 108 280 152 305 368.3 54 8 150 6 550 127 324 178 305 438.2 54 12 200 8 675 165.1 426 229 406 539.8 67 12 250 10 760 184.2 471 254 406 619.1 73 12 300 12 NOTES:*Schedule of weld neck to be indicated.

ASME B 16.5-2003 CLASS 1500 FLANGE  THICKNESS LTB DRILLINE DATA CLASS 1500 FLANGE  OUTSIDE  DIAMETER THICKNESS  OF  FLANCE  MIN BOSSED LENGTH WELD  NECK LENGTH * LAP JOINT LENGTH LONG  WELD NECK LENGTH PITCH CIRCLE DIAMETER BOLT HOLE DIAMETER NUMBER OF BOLT HOLES NOMINAL  PIPE SIZE OD T & T1 L L1 L2 L3 PCD H # MM INCH 121 22.5 39.0 67 32 229 82.6 22 4 15 1/2 130 25.5 42.0 77 35 229 88.9 22 4 20 3/4 149 29 48.0 80 41 229 101.6 26 4 25 1 159 29 48.0 80 41 229 111.1 26 4 32 1 1/4 178 32 51.0 90 44 229 123.8 29 4 40 1 1/2 216 38.5 64.0 109 57 229 165.1 26 8 50 2 244 41.5 71.0 112 64 229 190.5 29 8 65 2 1/2 267 48 124 73 229 203.2 32 8 80 3 311 54 131 90 229 241.3 35 8 100 4 375 73.5 163 105 305 292.1 42 8 125 5 394 83 178 119 305 317.5 38 12 150 6 483 92 220 143 305 393.7 45 12 200 8 585 108 261 178 305 482.6 51 12 250 10 675 124 290 219 305 571.5 54 16 300 12 750 133.5 305 241 305 635.0 60 16 350 14 825 146.5 318 260 311 704.8 67 16 400 16 915 162 334 276 327 774.7 73 16 450 18 985 178 363 292 356 831.8 79 16 500 20 1170 203.5 413 330 406 990.6 92 16 600 24 NOTES:*Schedule of weld neck to be indicated.

ASME B 16.5-2003 CLASS 900 FLANGE  THICKNESS LTB DRILLINE DATA CLASS 900 FLANGE  OUTSIDE  DIAMETER THICKNESS  OF  FLANCE  MIN BOSSED LENGTH WELD  NECK LENGTH * LAP JOINT LENGTH LONG  WELD NECK LENGTH PITCH CIRCLE DIAMETER BOLT HOLE DIAMETER NUMBER OF BOLT HOLES NOMINAL  PIPE SIZE OD T & T1 L L1 L2 L3 PCD H # MM INCH 121 22.5 39.0 67 32 229 82.6 22 4 15 1/2 130 25.5 42.0 77 35 229 88.9 22 4 20 3/4 149 29 48.0 80 41 229 101.6 26 4 25 1 159 29 48.0 80 41 229 111.1 26 4 32 1 1/4 178 32 51.0 90 44 229 123.8 29 4 40 1 1/2 216 38.5 64.0 109 57 229 165.1 26 8 50 2 244 41.5 71.0 112 64 229 190.5 29 8 65 2 1/2 240 38 61.0 109 54 229 190.5 26 8 80 3 290 45 77.0 121 70 229 235.0 32 8 100 4 350 50.8 86.0 134 79 305 279.4 35 8 125 5 380 56 93.0 147 86 305 317.5 32 12 150 6 470 64 109.0 169 114 305 393.7 38 12 200 8 545 70 115.0 191 127 305 469.9 38 16 250 10 610 79 124.0 207 143 305 533.4 38 20 300 12 640 85.8 137.0 220 156 305 558.8 42 20 350 14 705 88.9 140.0 223 165 305 616.0 45 20 400 16 785 102 159.0 236 190 305 685.8 51 20 450 18 855 108 166.0 255 210 305 749.3 54 20 500 20 1040 139.7 210.0 299 267 305 901.7 67 20 600 24 NOTES:*Schedule of weld neck to be indicated.

Introduction The strength to weight ratio of a metal can determine whether or not it can be used for specific applications. For industries such as civil, aerospace, and mechanical engineering, these ratios will make or break the opportunity to use a specific metal. The final factor in deciding what products and how much of them to use is cost. Titanium has been very popular over the years and its properties are superior to a lot of other metals. It has not been extensively used mainly due to its high cost; its high functionality in aerospace and military applications has improved its use and desirability however. The key determining factors in the type of metal to use for a specific project are the strength of the metal, its density or weight and the cost. Titanium is a highly coveted metal due to its near perfect strength to weight ratio and so is one of the most applicable metals on the market. Figure 1. Comparitive Chart of titanium, steel and aluminium Aircraft Materials Aluminium is the primary metal utilised in aircraft today as it is light, workable and cost-effective. Certain stronger alloys of aluminium are excellent choices to reduce emissions and save on fuel. Even though titanium is more suited for aerospace applications, its high cost deters it being used and aluminium is more popular. In airframe and engine applications where engine speed, strength and power are factors, titanium is more effective. Steel is stronger thantitanium, but due to its weight, it is not used for most aerospace applications. Figure 2. Aerospace applications Building Materials Steel is highly suited for multilevel construction applications. Steel has a low price and high strength, making it best suited for such constructions. In cases where structural weight is significant and for design architectural work, aluminium is suitable. Titanium is used in piping, due to its high corrosion resistance, for HVAC systems and where weight and strength are addressed such as large roofs. Figure 3. Building Materials Conclusion Though the high cost of titanium has deterred its use in most applications in the past, the fact that titanium is the fourth most abundant metal on the planet is now being realized. Although the price may be on the higher side when compared to other metals, it is slowly becoming more readily available and finding more applications. This information has been sourced, reviewed and adapted from materials provided by wilsonpipeline Pipe Industry Co., Limited. For more information on this source, please visit www.wilsonpipeline.com .

ASME/ANSI B16.5-1996 and B16.47-1996 Tolerances on flange dimensions (ASME/ANSI B16.5 and B16.7, and MSS SP-44) Dimension Range Tolerance in mm General and Blind Flanges(For blind flange dimendions see page 8-23 for B16.5, page8-46 for B16.47 Series A/ MSS SP-44 and page 8-51 for B16.47  Series B/ API 605): G(raised face  diameter) ≤NPS 24 ±0.03 ±0.76 ≥NPS 26,with 0.06 in raised face ±0.08 ±2.03 ≥NPS 26,with 0.25 in raised face ±0.04 ±1.02 I(bolt hole diameter) All No tolerance in B16.5 or B 16.47 J(bolt circle diameter) All ±0.06 ±1.52 Center to center of  adjacent bolt holes All ±0.03 ±0.76 Eccenticity of bolt  circle and machined facing diameters ≤NPS 2½ ±0.03 ±0.76 ≥NPS 3 ±0.06 ±1.52 Weld Neck Flanges1 (For dimensions see page 8-10 for B 16.5, page 8-46 for  B16.47 Series A/ MSS SP-44 and page 8-51 for B16.47 Series B/ API 605): D(overall length) ≤NPS 4 ﹢0.06 ﹢1.52 NPS 5 to 10 ﹢0.06,﹣0.12 ﹢1.52,﹣3.05 NPS 12 to 24 ﹢0.12,﹣0.18 ﹢3.05,﹣4.57 ≥NPS 26 ±0.19 ±4.83 Thickness of hub All >87.5% of pipe nominal wall thickness Slip on(see page 8-17),Lap Joint(see page8-32) and Socket Welding(see page 8-30 for dimensions) Flanges: B(inside diameter,or bore) ≤NPS10 ﹢0.03,﹣0.0 ﹢0.76,﹣0.0 ≥NPS12 ﹢0.06,﹣0.0 ﹢1.52,﹣0.0 Threaded Flanges (see page 8-40 for dimensions): B(counterbore) (Not applicable for Class 150 lb ≤NPS10 ﹢0.03,﹣0.0 ﹢0.76,﹣0.0 ≥NPS12 ﹢0.06,﹣0.0 ﹢1.52,﹣0.0

Type: Loose Flange, Plate Flange(PL), Slip-on Flange(SO), Welding-Neck Flange(WN), Threaded Flange(TH), Blind Flange, Lapped Flange etc. Manufacture Standard: DIN2527,2636,2637,2638,2566,2576,2632,3633,2635,2642,2653,2656,2655 etc. BS4504-3.1, ISO7005-I etc. Material: ▶Stainless Steel: ASTM A/SA182 F304, F304L, F316, F316L, 316Ti, F317L, F321, F321H, F310H,  F347H, N08904, F44 etc. (W1.4301, 1.4306, 1.4948, 1.4401, 1.4404, 1.4571, 1.4438, 1.4541, 1.4878, 1.4550, 1.4845, 1.4539, 1.4547 etc.). ▶Duplex&Super Duplex: ASTM A/SA182 F51, F53, F55, F59, F60(w1.4462, 1.4410, 1.4501, 1.4507 etc.) ▶Nickel Alloy: ASTM B564 N10276, N04400,N06600,N06601,N06625,N08800, N08020(w2.4819,2.4360,2.4361,2.4816,2.4851,2.4856,1.4876,1.4958 )etc. ▶Other Alloys: ASTM A105,A105N;  St37.2, C22.8; ASTM A182 F11, F12, F22, F5, F91; ASTM A350 LF2, LF3; ASTM A694 F42, F46, F48, F50, F52, F56,F60,F65,F70 etc. Rate: PN10 to PN160 (1.0MPa~ 16.0MPa) Dimension: 3/8” to 48” (DN10 ~DN1200) DIN2502 DIN2527 DIN2565 DIN2566 DIN2573 DIN2576 DIN2631 DIN2632 DIN2633 DIN2634 DIN2635 DIN2636 DIN2637 DIN2638 DIN2642-LOOSE FLANGE

Dimensions & Approximate Masses DIN2502 PN16 Flange Germany standard flange DIN 2502 for soldering or welding Nominal Pressure 16 DN Pipe d1 K D b d2 Thread Holes Weight Kg 10 17.2 17.7 90 60 14 14 M12 4 0.216 15 21.3 22.0 65 95 14 14 M12 4 0.669 20 26.9 27.6 75 105 16 14 M12 4 0.935 25 33.7 34.4 85 115 16 14 M12 4 1.110 32 42.4 43.1 100 140 16 18 M16 4 1.622 40 48.3 49.0 110 150 16 18 M16 4 1.854 50 60.3 61.1 125 165 18 18 M16 4 2.462 65 76.1 77.1 145 185 18 18 M16 4 2.993 80 88.9 90.3 160 200 20 18 M16 8 3.605 100 114.3 115.9 180 220 20 18 M16 8 3.990 125 139.7 141.6 210 250 22 18 M16 8 5.403 150 168.3 170.5 240 285 22 22 M20 8 6.546 175 193.7 196.1 315 270 24 22 M20 8 4.522 200 219.1 221.8 295 340 24 22 M20 12 8.962 250 273 276.2 355 405 26 26 M24 12 12.758 300 323.9 327.6 410 460 28 26 M24 12 16.593 350 355.6 359.7 470 520 30 26 M24 16 24.070 400 406.4 411.0 525 580 32 30 M27 16 30.186 450 457 462.3 585 640 38 30 M27 20 41.653 500 508 513.6 650 715 38 33 M30 20 52.842

DIN 2566 PN16 THREADED FLANGE SPECIFICATION Rated Diameter Flange Neck Raised face Drilling Weight (7,85 Kg/dm3) d1 Thread D b k h1 d3 d4 f Holes Bolt Diameter d2 Kg 15 21,3 R 1/2 95 14 65 20 35 45 2 4 M 12 14 0,613 20 26,9 R 3/4 105 16 75 24 45 58 2 4 M 12 14 0,91 25 33,7 R 1 115 16 85 24 52 68 2 4 M 12 14 1,1 32 42,4 R 1 1/4 140 16 100 26 60 78 2 4 M 16 18 1,6 40 48,3 R 1 1/2 150 16 110 26 70 88 3 4 M 16 18 1,78 50 60,3 R 2 165 18 125 28 85 102 3 4 M 16 18 2,43 65 76,1 R 2 1/2 185 18 145 32 105 122 3 4 M 16 18 3,18 80 88,9 R 3 200 20 160 34 118 138 3 8 M 16 18 4,12 100 114,3 R 4 220 20 180 38 140 158 3 8 M 16 18 4,47 125 139,7 R 5 250 22 210 40 168 188 3 8 M 16 18 6,13 150 165,1 R 6 285 22 240 44 195 212 3 8 M 20 22 7,92