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PE Pipe SDR Chart: Wall Thickness and PN (20 to 630 mm)

PE pipe SDR chart: wall thickness for SDR 41 to 7.4 at 20 to 630 mm outside diameter, with PE100 and PE80 pressure class PN. ISO 4065 relation, labelled drawing.

For preliminary reference and dimensional comparison. Temperature derating, the different design coefficient for gas, surge and joint strength are not covered. Confirm against the applicable product standard and the manufacturer's catalogue for design and ordering.

Dimension drawing and symbols

Plastic pipe cross section with ISO 4065 dimension symbolsdn: Nominal outside diameter. en: Nominal wall thickness.dnen
dn
Nominal outside diameter mm
en
Nominal wall thickness mm

dₙ is the nominal outside diameter and eₙ the nominal wall thickness. SDR is the ratio dₙ / eₙ. PE100 and PE80 pipes with the same SDR have the same wall but a different pressure class.

Visible rows: 33

Wall thickness

PE pipe wall thickness by SDR
Nominal wall thickness en, mm
dnODmmSDR 41SDR 33SDR 26SDR 21SDR 17SDR 13.6SDR 11SDR 9SDR 7.4
20no valueno valueno valueno valueno valueno value2.02.33.0
25no valueno valueno valueno valueno value2.02.33.03.5
32no valueno valueno valueno value2.02.43.03.64.4
40no valueno valueno value2.02.43.03.74.55.5
50no valueno value2.02.43.03.74.65.66.9
63no value2.02.53.03.84.75.87.18.6
75no value2.32.93.64.55.66.88.410.3
90no value2.83.54.35.46.78.210.112.3
1102.73.44.25.36.68.110.012.315.1
1253.13.94.86.07.49.211.414.017.1
1403.54.35.46.78.310.312.715.719.2
1604.04.96.27.79.511.814.617.921.9
1804.45.56.98.610.713.316.420.124.6
2004.96.27.79.611.914.718.222.427.4
2255.56.98.610.813.416.620.525.230.8
2506.27.79.611.914.818.422.727.934.2
2806.98.610.713.416.620.625.431.338.3
3157.79.712.115.018.723.228.635.243.1
3558.710.913.616.921.126.132.239.748.5
4009.812.315.319.123.729.436.344.754.7
45011.013.817.221.526.733.140.950.361.5
50012.315.319.123.929.736.845.455.868.3
56013.717.221.426.733.241.250.862.5no value
63015.419.324.130.037.446.357.270.3no value

Pressure class

Pressure class
SDRSPE100 PNPE80 PN
412043.2
331654
2612.5no value5
21108no value
178108
13.66.312.510
1151612.5
942016
7.43.22520

Quick answers

  • 32 mm PE pipe: SDR 11 (PE100 PN 16) wall 3 mm, SDR 17 (PE100 PN 10) wall 2 mm. View in table
  • 40 mm PE pipe: SDR 11 (PE100 PN 16) wall 3.7 mm, SDR 17 (PE100 PN 10) wall 2.4 mm. View in table
  • 50 mm PE pipe: SDR 11 (PE100 PN 16) wall 4.6 mm, SDR 17 (PE100 PN 10) wall 3 mm. View in table
  • 63 mm PE pipe: SDR 11 (PE100 PN 16) wall 5.8 mm, SDR 17 (PE100 PN 10) wall 3.8 mm. View in table
  • 90 mm PE pipe: SDR 11 (PE100 PN 16) wall 8.2 mm, SDR 17 (PE100 PN 10) wall 5.4 mm. View in table
  • 110 mm PE pipe: SDR 11 (PE100 PN 16) wall 10 mm, SDR 17 (PE100 PN 10) wall 6.6 mm. View in table
  • 160 mm PE pipe: SDR 11 (PE100 PN 16) wall 14.6 mm, SDR 17 (PE100 PN 10) wall 9.5 mm. View in table
  • 225 mm PE pipe: SDR 11 (PE100 PN 16) wall 20.5 mm, SDR 17 (PE100 PN 10) wall 13.4 mm. View in table

Conditions and notes

Wall thicknesses follow the ISO 4065 relation and rounding rule and were compared cell by cell with manufacturer charts. PN is based on water at 20 °C for 50 years with a design coefficient C = 1.25, giving a design stress of 8.0 MPa for PE100 and 6.3 MPa for PE80.

  • eₙ = dₙ / (2S + 1). S is the theoretical series value from ISO 4065 Table 2, for example 5.0119 for S 5. The calculated wall is written to three decimals. It is rounded down when the second decimal is 0 and the third is 4 or less, otherwise up to the next 0.1 mm. A plain dₙ / SDR division therefore gives a different result in some cells, for example 5.4 mm rather than 5.3 mm for 90 mm SDR 17.
  • ISO 4427-2 and the manufacturer charts raise the wall in seven small cells for national requirements: 2.0 mm for 20 mm SDR 11, 25 mm SDR 13.6, 32 mm SDR 17 and 40 mm SDR 21, and 3.0 mm for 20 mm SDR 7.4, 25 mm SDR 9 and 32 mm SDR 11. The table shows these product values. The ISO 4065 calculation gives 1.9, 2.8 and 2.9 mm in these cells.
  • PN = 20 × σs / (SDR − 1), with σs = MRS / C. The result is rounded to the R10 series. The calculation gives 6.4 bar for PE100 SDR 26 and 6.3 bar for PE80 SDR 21. ISO 4427-2 and tables based on it state PN 6 for both cells, while the DIN 8074 table states PN 6.3. Because the sources differ, both cells are blank.
  • A blank cell means two independent manufacturer charts did not give the same value for that diameter and SDR. For 90 mm SDR 41 two manufacturers give 2.3 mm while ISO 4065 gives 2.2 mm. There are no two reliable sources for 560 and 630 mm SDR 7.4.
  • PN values are for water at 20 °C. Gas pipes are selected with another design coefficient and pressure limit. For warmer water apply the manufacturer's derating factor.
  • CSV download is unavailable because the sources do not establish permission for reuse.

Nominal wall thickness of PE100 and PE80 pressure pipes for water and gas by nominal outside diameter and SDR series. The pressure class table is in the second section of the page.

Sources

This table is for preliminary reference. Check the applicable standard and product conditions before use.

  • Source 1. ISO 4065:1996. Accessed: 2026-10-16
  • Source 2. Version accessed. Accessed: 2026-10-16
  • Source 3. Version accessed. Accessed: 2026-10-16
  • Source 4. Undated numerical table. The referenced edition is stated in the conditions.. Accessed: 2026-10-16
  • Source 5. Undated numerical table. The referenced edition is stated in the conditions.. Accessed: 2026-10-16
  • Source 6. Version accessed. Accessed: 2026-10-16
  • Source 7. Undated numerical table. The referenced edition is stated in the conditions.. Accessed: 2026-10-16
  • Source 8. Version accessed. Accessed: 2026-10-16

Data version: 2026-10-16

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