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Pressure rating tables

Reliable pressure values are essential for accurately assessing the load-bearing capacity of stainless steel pipes. Our pressure tables provide you with a precise basis for calculating the calculated operating pressure in accordance with DIN 2413 at 20 °C. They enable a quick assessment of the pressure resistance for seamless and welded stainless steel pipes made of material 1.4435 / AISI 316L.

The specified values are based on current standards and take into account both metric and imperial pipe dimensions. This means that our pipe systems can be easily integrated into international plant standards. You benefit from a high level of planning reliability, whether in plant construction, process engineering or sensitive media lines.

All pressure data from our pressure tables have been carefully compiled on the basis of technical calculations and serve as a guide for the design of your systems.

This creates the ideal conditions for a safe, efficient and durable installation.

The system operator is responsible for the design of the operating pressures. Laffert GmbH accepts no liability for the values given to the best of its knowledge

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Calculated operating pressure for stainless steel pipes

The following tables show the permissible operating pressures for metric and imperial stainless steel pipes made of material 1.4435-316L. All pressure tables are available for download as PDF files.
Wall mm
AD mm 0,25 0,50 1,00 1,50 2,00 2,50 3,00 3,20 3,50 4,00 5,00
3,00 225 450
4,00 169 337
6,00 113 225 450
8,00 84 169 337 507
10,00 68 135 270 405 540
12,00 112 225 337 450 562
14,00 96 193 289 385 482
15,00 180 270 340 450 540
16,00 169 253 337 422 507 540
18,00 150 225 300 375 450 480 525
19,00 142 213 284 355 426 455 497
20,00 135 202 270 337 404 432 473 540
22,00 122 184 245 307 368 393 420 491
23,00 117 176 235 293 352 376 411 470
25,00 108 165 216 270 324 346 378 432 540
28,00 97 145 193 241 289 309 338 385 482
35,00 77 116 154 193 231 247 270 309 386
41,00 99 132 165 198 211 230 263 329
53,00 76 102 127 153 136 178 204 255
70,00 58 77 96 115 123 135 155 193
85,00 64 79 95 102 111 127 159
104,00 52 65 78 83 91 104 130
154,00 35 44 53 56 61 70 88
Pressure table metric

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Wall mm
AD “ AD mm 0,25 0,30 0,35 0,40 0,50 0,71 0,91 1,22 1,65 2,11
1/16 1,59 425 509 594 679 849
1/8 3,18 212 255 297 340 425 603
3/16 4,76 142 170 198 227 284 403 516
¼ 6,35 106 128 149 170 213 302 387 519
5/16 7,94 85 102 119 136 170 214 309 415 561
3/8 9,53 85 99 113 142 201 258 346 467 598
½ 12,7 85 106 151 193 259 351 449
5/8 15,88 85 121 155 208 281 359
¾ 19,05 101 129 173 234 299
1 25,4 98 130 175 224
1 ¼ 31,8 104 140 179
1 ½ 38,1 86 117 150
2 50,8 65 88 112
2 ½ 63,5 52 70 90
3 76,2 43 58 75
Pressure table Zöllig

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If you have any questions, please use our contact form

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