What has changed between editions of a standard

Cap

DIN EN 10253-2:2008-09 → DIN EN 10253-2:2021-11

• value

  The cap height K has changed for two sizes.

  Examples: ⌀ 33.7: 25 to 38 · ⌀ 101.6: 64 to 60

  editions 2008-09 and 2021-11 · Table 16 and Table A.4

• value

  The cap table has added nine diameters that it did not carry before.

  Examples: ⌀ 38 · ⌀ 108 · ⌀ 193.7

  editions 2008-09 and 2021-11 · Table 16 against Table A.4

• value

  One diameter of the cap table has changed by 2 mm - the associated height K stayed the same.

  Examples: ⌀ 1166 became ⌀ 1168

  editions 2008-09 and 2021-11 · Table 16 against Table A.4

• system

  The cap table no longer carries a DN column - it names only the outside diameter D.

  editions 2008-09 and 2021-11 · Table 16 (DN, D, k) against Table A.4 (D, K)

DIN EN 10253-2:2008-09 → DIN EN 10253-2:2026-07

• unchanged

  The standard carries the wall thicknesses of type B caps in both editions - in 2008 as Table C.7, today as Table D.7, with matching sample values.

  Examples: ⌀ 21.3 series 2: T 2 · ⌀ 610 series 5: T 25 / Tc 25.0

  editions 2008-09 and 2026-07 · Table C.7 (edition 2008) against Table D.7 (edition 2026)

Tee

DIN EN 10253-2:2008-09 → DIN EN 10253-2:2021-11

• value

  The diameter 101.6 has been dropped from the tee table - in the cap and elbow tables the standard continues to carry it.

  Examples: ⌀ 101.6

  editions 2008-09 and 2021-11 · Table 13 against Annex A

DIN 2615-2:1992-05 → DIN EN 10253-2:2008-09

• not yet recorded

  For this period the edition is not available to us - no comparison is claimed.

Reducer

DIN 2616-2:1991-02 → DIN EN 10253-2:2008-09

• not yet recorded

  For this period the edition is not available to us - no comparison is claimed.

Boiler tube

DIN EN 10216-2:2020-04 → DIN EN 10216-2:2025-02

• value

  The standard has added new creep-resisting steel grades.

  Examples: 1.7392 (X10CrSiCuMoNi9-2-1) · 1.4915 (X12CrCoWVNb12-2-2) · 1.4927 (X10CrMoVNb11)

  editions 2020-04 and 2025-02 · National foreword, Table 1, Annex B

• unchanged

  The preferred dimension matrix (Table 6) is unchanged between the editions - the same 59 diameters, the same series assignment, the same 951 permissible combinations - although the 2025 national foreword mentions corrections in Table 6.

  editions 2020-04 and 2025-02 · National foreword and Table 6

• value

  The creep strength values of Table A.1 have been updated by corrections and new ECCC data.

  Examples: 1.4903 (X10CrMoVNb9-1) · 1.4901 (X10CrWMoVNb9-2)

  editions 2020-04 and 2025-02 · National foreword and Annex B

• designation

  In clause 11.8.1 the unit has been changed from bar to MPa.

  editions 2020-04 and 2025-02 · Annex B

Stainless steel tube, seamless

DIN EN 10216-5:2014-03 → DIN EN 10216-5:2021-06

• system

  The tensile test at room temperature still requires two tests per test unit in test category 2, now with the addition that they must come from different tubes (Table 15).

  editions 2014-03 and 2021-06 · Table 15

• system

  The impact test (subclause 11.4.1) has been modified.

  editions 2014-03 and 2021-06 · National foreword

• unchanged

  The list of changes of the 2021 edition mentions neither the system of test categories nor the delivery conditions - both continue as in 2014.

  editions 2014-03 and 2021-06 · National foreword, section on changes

Stainless steel tube, welded

DIN EN 10217-7:2015-01 → DIN EN 10217-7:2021-06

• system

  The delivery condition table (Table 2) carries the eleven symbols W0 to WP unchanged - new are the strip starting material 2R, the addition “and/or pickled” for W1, W1A, W2, W2A and WCA together with a new footnote e, and the W0 footnote f on residual scale, heat tint and grease residues.

  editions 2015-01 and 2021-06 · Table 2

• system

  Options 9 and 10 on agreements about the mechanical properties at room and elevated temperature have been deleted.

  editions 2015-01 and 2021-06 · National foreword

• limit value

  Two new options limit the maximum height of the weld bead (option 28: agreed values, option 29: at most 4 mm).

  editions 2015-01 and 2021-06 · National foreword, Table 11

Hydraulic tube (precision tube)

DIN EN 10305-4:2011-04 → DIN EN 10305-4:2016-08

• system

  The tubes are now preferably ordered by outside diameter and wall thickness.

  editions 2011-04 and 2016-08 · National foreword, clause 8.5.1.1

• system

  The option numbers have been reassigned for all six parts of the 10305 series and are now the same across the parts.

  editions 2011-04 and 2016-08 · National foreword

• system

  The drift expanding test is now, besides the tensile test, the second standard test of the mechanical testing.

  editions 2011-04 and 2016-08 · National foreword

Stainless steels (EN 10088-1)

DIN EN 10088-1:2014-12 → DIN EN 10088-1:2024-04

• value

  The list has added new grades - austenitic, ferritic, martensitic and duplex grades.

  Examples: 1.4420 · 1.4637 · 1.4060

  editions 2014-12 and 2024-04 · National foreword

• value

  The chemical composition of several grades has been changed - for 1.4404 the upper limit for molybdenum has been raised from 2.50 to 3.0 per cent by mass, the lower limit 2.00 and the name X2CrNiMo17-12-2 stayed.

  Examples: 1.4404 · 1.4003 · 1.4116

  editions 2014-12 and 2024-04 · Table 2 (old) against Table 3 (new)

• value

  Three grades have been deleted from the list.

  Examples: 1.4319 · 1.4537 · 1.4655

  editions 2014-12 and 2024-04 · National foreword

Steel tube, welded

DIN EN 10217-1:2005-04 → DIN EN 10217-1:2019-08

• system

  The inspection documents now follow EN 10204:2004: grade TR1 is supplied with test report 2.2, grade TR2 optionally with test report 2.2 or with inspection certificate 3.1 (option 9: specific inspection, 3.2 as specified by the purchaser) - the documents 3.1.A, 3.1.B and 3.1.C of the 2005 edition no longer exist.

  editions 2005-04 and 2019-08 · National foreword, 9.1 (new), 9.1 and 9.2.1 (old)

• system

  Continuous welding (symbol BW, in the 2005 edition only for P195 and P235 up to D 114.3) has been deleted from Table 1 - EW, HFW, SAWL and SAWH remain. For pressure equipment under EU law the standard now names HFW tubes only (7.2.4).

  editions 2005-04 and 2019-08 · Table 1, 7.2.4 (new)

• limit value

  Table 7 carries a row of its own for SAW tubes: outside diameter ± 0.75 % or ± 6 mm (whichever is smaller) for all D, wall thickness up to 10 mm ± 10 % or ± 0.3 mm (whichever is greater), above that ± 8 % or ± 2 mm (whichever is smaller) - for EW and HFW tubes the limit deviations are unchanged from 2005.

  editions 2005-04 and 2019-08 · Table 6 (old), Table 7 (new)

• value

  The preferred dimension tables are unchanged except for three places: new is the outside diameter 165.1 with wall thicknesses 4.5 to 5.6, and at 762 and 813 the preferred wall thickness now extends to 36 and 40 mm respectively instead of 32 mm.

  Examples: 165.1 × 4.5 · 762 × 36 · 813 × 40

  editions 2005-04 and 2019-08 · Table 5 (old), Tables 6a and 6b (new)

• value

  For the grades TR2 the maximum sulphur content in the heat analysis (standard: cast analysis) has been lowered from 0.020 % to 0.015 % - the other limits of Table 2 and the mechanical properties of Tables 4 and 5 are unchanged.

  Examples: P195TR2 · P235TR2 · P265TR2

  editions 2005-04 and 2019-08 · Table 2, Tables 4 and 5

• limit value

  New is a limit depth for surface imperfections: whatever reaches deeper than 5 % of the wall thickness or 3 mm (whichever is smaller) is to be removed by rework - and the visual inspection now expressly applies without special equipment.

  editions 2005-04 and 2019-08 · 8.4.2.1 and 8.4.2.4 (new), 8.4.2 (old)

• system

  The bevel according to option 7 (30° +5/0, root face C 1.6 ± 0.8 mm) now expressly applies to wall thicknesses from 3.2 mm - above 20 mm a different bevel may be agreed as before.

  editions 2005-04 and 2019-08 · 8.6 and Figure 1

• system

  The marking now names the steel name or material number as well as the tube type EW, HFW, SAWL or SAWH and lists the application methods - the category conformity note of the 2005 edition is dropped, the tag instead of tube marking up to D 51 remains.

  editions 2005-04 and 2019-08 · 12.1

• system

  The test standards have been updated: non-destructive testing to the EN ISO 10893 series (including digital radiographic testing), tensile test to EN ISO 6892-1:2016, ring flattening and drift expanding test to EN ISO 8492:2013 and EN ISO 8493:2004.

  editions 2005-04 and 2019-08 · National foreword, clause 11 (new)

• system

  The options have been reordered: option 9 is now the specific inspection for grade TR2 (2005: for TR1), the former option 10 on the type of inspection document is dropped, the others move up - surface protection is option 15 instead of 16.

  editions 2005-04 and 2019-08 · 6.2

• unchanged

  Straightness (0.0015 L, at most 3 mm per metre), out-of-roundness (up to D 406.4 included in the D limit deviations, above that at most 2 % at D/T up to 100), the limit deviations for exact lengths as well as weld bead height and edge misalignment of the SAW tubes are unchanged between the editions.

  editions 2005-04 and 2019-08 · 8.5, 8.7.4.2 to 8.7.4.6