EN 1057:2006

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Baker in bakrove zlitine - Nevarjene (narejene iz celega) bakrene cevi z okroglim prerezom za vodo in plin, ki se uporabljajo za sanitarne in ogrevalne nameneKupfer und Kupferlegierungen - Nahtlose Rundrohre aus Kupfer für Wasser- und Gasleitungen für Sanitärinstallationen und HeizungsanlagenCuivre et alliages de cuivre - Tubes ronds sans soudure en cuivre pour l'eau et le gaz dans les applications sanitaires et de chauffageCopper and copper alloys - Seamless, round copper tubes for water and gas in sanitary and heating applications77.150.30Bakreni izdelkiCopper products23.040.15Cevi iz neželeznih kovinNon-ferrous metal pipesICS:Ta slovenski standard je istoveten z:EN 1057:2006SIST EN 1057:2006en01-julij-2006SIST EN 1057:2006SLOVENSKI
STANDARDSIST EN 1057:19981DGRPHãþD

EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 1057May 2006ICS 23.040.15Supersedes EN 1057:1996
English VersionCopper and copper alloys - Seamless, round copper tubes forwater and gas in sanitary and heating applicationsCuivre et alliages de cuivre - Tubes ronds sans soudure encuivre pour l'eau et le gaz dans les applications sanitaireset de chauffageKupfer und Kupferlegierungen - Nahtlose Rundrohre ausKupfer für Wasser- und Gasleitungen fürSanitärinstallationen und HeizungsanlagenThis European Standard was approved by CEN on 23 March 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2006 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 1057:2006: ESIST EN 1057:2006

Standardized dimensions for reconsideration at a future revision.26 Annex B (normative)
Carbon film test.27 B.1 Preparation of the test piece.27 B.2 Procedure.27 B.3 Detection and assessment of films.27 Annex C (normative)
Freedom from defects tests.28 C.1 Eddy current test.28 C.2 Hydrostatic test.28 C.3 Pneumatic test.28 Annex ZA (informative)
Clauses of this European Standard addressing the provisions of the EU Construction Products Directive (CPD) 89/106/EEC.30 ZA.1 Scope and relevant characteristics.30 ZA.2 Procedure(s) for attestation of conformity of pipes.32 ZA.2.1 System(s) of attestation of conformity.32 ZA.2.2 EC Certificate and Declaration of conformity.33 ZA.3 CE marking and labelling.34 Annex ZB (informative)
Relationship between this European Standard and the Essential Requirements of the EU Pressure Equipment Directive (PED) 97/23/EC.36 Bibliography.37
Tables Table 1 — Mechanical properties.12 Table 2 — Minimal elongation values for R250 (half hard) material condition tubes.13 Table 3 — Standardized dimensions.15 Table 4 — Tolerances on outside diameter.16 Table 5 — Tolerances on wall thickness.16 Table 6 — Quantitative and qualitative specification for carbon residues.17 Table 7 — Testing of
bending, drift expanding and flanging.18 Table 8 — Sampling rate.21 Table 9 — Minimum radius of curvature.23 Table 10 — Recommended form of delivery.25 Table A.1 — Standardized dimensions for reconsideration at a future revision.26 Table C.1 — Maximum drill diameters for the reference standard tube.28 Table C.2 — Hydraulic pressure test.28 Table ZA.1 — Relevant clauses.31 Table ZA.2 — Systems of attestation of conformity.32 Table ZA.3.1 — Assignment of evaluation of conformity tasks for pipes under system 3 — 1/5.33 Table ZA.3.2 — Assignment of evaluation of conformity tasks for pipes under system 4 — 2/5.33 Table ZB.1 — Correspondence between this European Standard and Directive 97/23/EC.36
heating applications This document has been prepared within the framework of two mandates given to CEN by the European
Commission and the European Free Trade Association, and supports essential requirements of the
EU Construction Products Directive (CPD) 89/106/EEC and the EU Pressure Equipment Directive (PED) 97/23/EC. For relationship with EU Directives, see informative Annexes ZA and ZB, which are integral parts of this document. In comparison with the first edition of EN 1057:1996, the following significant technical changes were made:  harmonization of the standard to the Construction Product Directive (CPD) and to the Pressure Equipment
Directive (PED);  introduction of two new definitions: "permanently marked" and "durably marked";  updating of the definitions regarding soldering, brazing, fusion welding, braze welding and mean diameter;  introduction of five new items in Clause 5 "Ordering information" regarding options on tests and documents;  due to the process of harmonization to the CPD, introduction of three new characteristics in Clause 6 "Material characteristics" inherent to copper material which are not to be tested;  modification of Table 3 "Standardized dimensions";  simplification of Table 6 "Quantitative and qualitative specification for carbon residues": Suppression of the residual and potential carbon and application of the thresholds to the total carbon;  text in Clause 8 "Evaluation of conformity" added due to the process of harmonization to the CPD;  for permanent and durable markings, specification of their applicability in 12.1 "Marking";  modification of the table in Annex A, introduction of new diameters and wall thicknesses;  due to the process of harmonization to the CPD and PED introduction of Annexes ZA and ZB. This is one of a series of European Standards for copper and copper alloy tubes. Other products are specified as
follows: EN 12449, Copper and copper alloys — Seamless, round tubes for general purposes EN 12450, Copper and copper alloys — Seamless, round copper capillary tubes EN 12451, Copper and copper alloys — Seamless, round tubes for heat exchangers SIST EN 1057:2006

implemented, this European Standard will have added to it a special Annex (Z/EAS) to incorporate the provi-sions of the EC mandate M/136 and a) will no longer be applicable. This European Standard provides the basis for the assessment of a manufacturer's production process for products manufactured in accordance with this European Standard. The assessment could be based on initial and continuing surveillance of the factory production control system which could be concurrent with an assessment of the
manufacturer's quality management system against EN ISO 9001. Regulatory marking and the means by which regulatory marking is applied, is dealt with in Annex ZA. Tubes having an outside diameter of not more than 108 mm are suitable for soldering, brazing or assembling by
mechanical compression, collared, push-fit or press fittings. For tubes having an outside diameter of more than 108 mm, assembly should preferably be performed by welding or braze welding. Reference can be made to this European Standard for tubes intended for other applications or for the
transportation of other fluids. In such cases special requirements (for specifications, conditioning or delivery
conditions) can be agreed between the purchaser and the supplier. NOTE Appropriate precautions should be taken if applying insulating/protecting material because it could be detrimental to the copper tube. SIST EN 1057:2006

copper tubes or fittings EN 1971, Copper and copper alloys — Eddy current test for tubes EN 10002-1, Metallic materials — Tensile testing — Part 1: Method of test at ambient temperature EN 10204:2004, Metallic products — Types of inspection documents EN ISO 8491, Metallic materials — Tube (in full section) — Bend test (ISO 8491:1998) EN ISO 8493, Metallic materials — Tube — Drift-expanding test (ISO 8493:1998) EN ISO 8494, Metallic materials — Tube — Flanging test (ISO 8494:1998) EN ISO 6507-1, Metallic materials — Vickers hardness test — Part 1: Test method (ISO 6507-1:2005) EN ISO 9001, Quality management systems — Requirements (ISO 9001:2000) ISO 1553, Unalloyed copper containing not less than 99,90 % of copper — Determination of copper content — Electrolytic method ISO 4741, Copper and copper alloys — Determination of phosphorus content — Molybdovanadate spectrometric method NOTE Informative references to documents used in the preparation of this standard, and cited at the appropriate places in the text, are listed in the Bibliography. SIST EN 1057:2006

3.2.1 soldering soft soldering joining process using filler metal with a liquidus temperature of 450 °C or less [ISO 857-2:2005] 3.2.2 brazing hard soldering joining process using filler metal with a liquidus temperature above 450 °C [ISO 857-2:2005] 3.3 fusion welding welding without application of outer force in which the facing surface(s) has (have) to be molten; usually, but not necessarily, molten filler metal is added [ISO 857-1:1998] 3.4 braze welding method of welding by using a filler metal that liquefies above 450 °C and below the solid state of the base metals. Unlike brazing, in braze welding, the filler metal is not distributed in the joint by capillary action 3.5 mean diameter arithmetical mean of the maximum and minimum outside diameters through the same cross-section of the tube 3.6 deviation from circular form difference between the maximum and minimum outside diameters measured at any one cross-section of the tube 3.7 deviation from concentricity half of the difference between the maximum and minimum wall thicknesses at the same cross-section of the tube 3.8 production batch definite quantity of products of the same form, the same material condition and the same cross-sectional
dimensions manufactured during the same production sequence under uniform conditions SIST EN 1057:2006

description of a product is conveyed in communication. It provides mutual comprehension at the international level with regard to products which meet the requirements of the relevant European Standard. The product designation is no substitute for the full content of the standard. The product designation for products to this European Standard shall consist of:  denomination (Copper tube);  number of this European Standard (EN 1057);  material condition designation (see Table 1);  nominal cross-sectional dimensions in millimetres: outside diameter × wall thickness. The derivation of a product designation is shown in the following example. EXAMPLE Copper tube conforming to this European Standard, material condition R220 (annealed), nominal outside
diameter 12 mm, nominal wall thickness 1,0 mm, shall be designated as follows: SIST EN 1057:2006

supplier, the purchaser shall state on his enquiry and order the following information: a) quantity of product required (in metres); b) denomination (Copper tube); c) number of this European Standard (EN 1057); d) material condition designation (see 4.2 and Table 1); e) nominal cross-sectional dimensions: outside diameter × wall thickness (see Table 3 and Annex A); f) nominal length (see 12.2); g) form of delivery (see 12.2); In addition, the purchaser shall also state on the enquiry and order any of the following, if required: h) drift expanding test: other than the mandatory cases, by agreement between the purchaser and the supplier, (see 7.7); i) flanging test: by agreement between the purchaser and the supplier (see 10.8); j) hardness test: by agreement between the purchaser and the supplier (see 10.3); k) whether an inspection document is required, and if so, which type (see Clause 11). NOTE It is recommended that the product designation as described in 4.3, is used for items b) to e). EXAMPLE Ordering details for 500 m copper tube conforming to EN 1057, in material condition R220 (annealed), nominal outside diameter 12 mm, nominal wall thickness 1,0 mm, in 50 m coils:
500 m Copper tube EN 1057 — R220 — 12 × 1,0
— 50 m coils SIST EN 1057:2006

6 Material characteristics 6.1 Safety in case of fire – Reaction to fire Copper tubes according to this European Standard, i.e. without plastics covering, do not require to be tested for reaction to fire (i.e. products/materials of class A.1 according to Commission Decision 96/603/EC, as amended 2000/605/EC). 6.2 Properties at high temperature The mechanical properties of copper at temperatures encountered in heating networks are not reduced
significantly; for example, from ambient temperature up to 120 ûC, it is not necessary to include the maximum
admissible stress in pressure calculations. 6.3 Weldability The suitability for welding is characteristic of the copper grade used for products in accordance with this European Standard, which is assured by control of the material composition. NOTE Cu-DHP copper can be readily welded to produce a strong, homogeneous structure. Nevertheless, the advice of the manufacturer and welding professionals should be sought in order to ensure the correct selection of welding process, design and workmanship, taking into account thermal conductivity and coefficient of thermal expansion, to achieve the highest quality results. 7 Requirements 7.1 Composition The composition shall conform to the following requirements: Cu + Ag: min. 99,90 %; 0,015 % ≤ P ≤ 0,040 %. This copper grade is designated either Cu-DHP or CW024A. 7.2 Mechanical properties The tensile strength and elongation shall conform to the requirements given in Table 1. The test shall be carried out in accordance with 10.2. SIST EN 1057:2006

d Rm A HV 5
mm MPa %
designation in accordance with common term
EN 1173
min. max. min. min.
R220 annealed 6
54 220
40 (40 to 70) 6
66,7
30 a
R250 a half hard a 6
159 250
20 a (75 to 100)
R290 hard 6
267 290
3 (min. 100) NOTE 1
Hardness figures in parentheses are not requirements of this European Standard but are given for guidance purposes only. NOTE 2
1 MPa is equivalent to 1 N/mm2. NOTE 3
Brittle fracture prevention: Copper, having a face-centred cubic crystal structure, does not suffer a transition
from ductile to brittle failure like some other materials. a See Table 2 for relationship between tube dimensions and elongation for R250 (half hard) tubes. The size range for values of elongation of R250 (half hard) tube is dependent on the relationship between diameter and wall thickness as shown in Table 2. SIST EN 1057:2006

d 0,5 0,6 0,70,750,80,91,01,11,21,52,0 2,5 3,0
A ≥ 30 %
66,7
76,1
88,9
A ≥ 20 %
a For remaining non-metric dimensions in Annex A, the rounded nearest diameter applies.
Elongation ≥ 30 % when d ≤ 66,7 mm; and either e < 1 mm or ;242>ed Elongation ≥ 20 % when d > 66,7 mm; or e ≥ 1 mm and also .242≤ed where d is the nominal outside diameter in millimetres; e is the nominal wall thickness in millimetres. SIST EN 1057:2006

diameter and wall thickness shall conform to the requirements given in Table 3 (or Table A.1), Table 4 and Table 5. In cases of dispute these dimensions shall be measured at a temperature of (23 ± 5) °C. 7.3.2 Nominal dimensions The standardized nominal outside diameters and nominal wall thicknesses are given in Table 3 (or Table A.1). The lengths recommended are indicated in Table 10. NOTE 1 These standardized dimensions have been selected from those used on the European market at the time of estab-lishment of the present European Standard. NOTE 2 A limited number of other dimensions have been listed in Annex A for reconsideration at a future revision of this European Standard. NOTE 3 CEN/TC 133 has defined the recommended R marked dimensions as a step towards rationalization aiming for not more than three wall thickness for each diameter, and a restricted number of diameters. NOTE 4 For reference purposes, if DN designation of size for components of a piping system is required, it can be calculated for tubes to this European Standard by: Nominal outside diameter (d) — 2 × nominal wall thickness (e). DN is a numerical
designation of size, which is common to all components in a piping system. It is a convenient round number for reference
purposes and is only loosely related to the manufacturing dimensions (see EN ISO 6708). SIST EN 1057:2006

Values in millimetres Nominal outside diameter Nominal wall thickness e d 0,5 0,6 0,7 0,80,9 1,01,11,2 1,52,0 2,5 3,0
R
R
R
R
R
R
R R R
R
R R R
R
R
R
R R
R
R
R
R
R R R R R
R R
R R
R
R R
R
R
R R
R
R R R
R
66,7
R
R
76,1
R R
88,9
R
R
R
R
R
R
R
R
R R Indicates the dimensions recommended for consideration in national codes of practice. See alsoAnnex A.
7.3.3 Tolerances on outside diameter The outside diameter shall conform to the tolerances given in Table 4. SIST EN 1057:2006

6 b
± 0,04
± 0,04
± 0,09
± 0,05
± 0,06
± 0,10
± 0,06
± 0,07
± 0,11
76,1
± 0,07
± 0,10
± 0,15
76,1
88,9
± 0,07
± 0,15
± 0,20
88,9
± 0,07
± 0,20
± 0,30
± 0,2
± 0,7
± 0,4
± 0,6
± 1,5 — NOTE 1
Tolerances for tubes in R220 (annealed) material condition are applicable only to mean diameter. NOTE 2
In case of dispute, to improve the accuracy when determining the mean diameter, the tube may be re-rounded
before measurement. a Including deviation from circular form b Including 6
7.3.4 Tolerances on wall thickness The tolerances on wall thickness expressed in percentage of the nominal thickness as measured at any point shall conform to the requirements given in Table 5. Table 5 — Tolerances on wall thickness Nominal outside diameter Tolerances on wall thickness e a d e < 1 mm e ≥ 1 mm mm % % < 18 ± 10 ± 13 ≥ 18 ± 10 ± 15 b NOTE Concentricity (uniformity of wall thickness) is controlled by tolerance on wall thickness. a Including deviation from concentricity b ± 10 % for R250 (half hard) tubes of 35 mm, 42 mm and 54 mm diameters
with a wall thickness of 1,2 mm
7.3.5 Tolerances on length The lengths shall be equal to or greater than those ordered. SIST EN 1057:2006

carbon content or the carbon film test. Table 6 — Quantitative and qualitative specification for carbon residues Nominal outside diameter Material condition Quantitative method — Total carbon a Qualitative method — Carbon film test d
max.
mm
mg/dm2
R220 (annealed) 0,20 yes
R250 (half hard) 0,20 yes from 10 up to and including 54
R290 (hard)
0,20 yes
R250 (half hard) 0,20 yes over 54
R290 (hard)
1,0 no NOTE To establish the inspection and control documents, only the quantitative method shall be used (see EN 723). a Definition according to EN 723.
7.6 Bending No tear shall be visible to the unaided eye, corrected for normal vision, if necessary, when tubes of the sizes and material condition given in Table 7 are tested in accordance with 10.6. Strain bending (Lüders lines) shall be
accepted. 7.7 Drift expanding No crack, break or tearing of the metal shall be visible to the unaided eye, corrected for normal vision, if necessary, when tubes of the sizes and material conditions given in Table 7 (and agreed between the purchaser and the
supplier, where necessary) are tested in accordance with 10.7. 7.8 Flanging No crack on the tube edge shall be visible to the unaided eye, corrected for normal vision, if necessary, when tubes of the sizes and material condition given in Table 7 (and agreed between the purchaser and the supplier, where nec-essary) are tested in accordance with 10.8. SIST EN 1057:2006

over up to and including
bending a drift expanding flanging R220 (annealed) — M A R250 (half hard) — M —
6 b
18 R290 (hard) M — — R220 (annealed) — A A R250 (half hard) — A —
54 R290 (hard) — — — R220 (annealed) — — — R250 (half hard) — — —
54 267 R290 (hard) — — — M Mandatory A To be agreed upon by the purchaser and the supplier a For nominal wall thickness not less than 1 mm. b Including 6.
8 Evaluation of conformity 8.1 General The conformity of copper tube to the requirements of this standard and with the stated values shall be
demonstrated by:  initial type testing;  factory production control by the manufacturer, including product assessment. 8.2 Type testing 8.2.1 Initial type testing An initial type test is the complete set of tests or other procedures, determining the performance of samples of products representative of the product type. Initial type testing shall be performed to show conformity with this European Standard. Tests previously performed in accordance with the provisions of this European Standard (same product, same characteristic(s), test method, sampling procedure, system of attestation of conformity etc.) may be taken into
account. In addition, initial type testing shall be performed at the beginning of a new method of production (where this may affect the stated properties). SIST EN 1057:2006

concerned;  weldability — copper grade Cu-DHP can be readily welded. 8.2.2 Sampling, testing and conformity criteria 8.2.2.1 Sampling Initial type testing shall be performed on representative samples of the copper tube production to be placed on the market. 8.2.2.2 Testing and conformity criteria Copper tubes shall be tested for conformity to the requirements listed in Clause 7 in accordance with the relevant methods given in Clause 10. The results of all type tests shall be recorded and held by the manufacturer for at least 5 years after the end of pro-duction of the product for which the ITT is representative. 8.3 Factory production control (FPC) 8.3.1 General The manufacturer shall establish, document and maintain an FPC system to ensure that the products placed on the market conform to the declared performance characteristics. The FPC system shall consist of written procedures (works' manual), regular inspections and tests and/or assessments and the use of the results to control raw and other incoming materials, equipment, the production process and the product. All elements, requirements and provisions of FPC adopted by the manufacturer shall be documented in a
systematic manner in the form of written policies and procedures. This production control system documentation shall ensure a common understanding of conformity evaluation and enable the achievement of the required
component characteristics and the effective operation of the production control system to be checked. Factory production control therefore brings together operational techniques and all measures allowing maintenance and control of the conformity of the product with its technical specifications. Its implementation may be achieved by controls and tests on measuring equipment, raw materials, processes, machines and manufacturing equipment and finished products, including material properties of the products, and by making use of the results thus obtained. An FPC system conforming with the requirements of EN ISO 9001, and made specific to the requirements of this standard, is considered to satisfy the above requirements. SIST EN 1057:2006

8.3.2 General FPC requirements The FPC system shall fulfil the requirements as described in the following clauses of EN ISO 9001:2000, where applicable:  4.2 except 4.2.1 a);  5.1 e), 5.5.1, 5.5.2;  Clause 6;  7.1 except 7.1 a), 7.2.3 c), 7.4, 7.5, 7.6;  8.2.3, 8.2.4, 8.3, 8.5.2. NOTE The FPC system may be part of a Quality Management system, e.g. in accordance with EN ISO 9001:2000. The manufacturer shall establish procedures to ensure that the production tolerances allow for the copper tube
performances to be in conformity with the declared values derived from initial type testing. The characteristics and the means of verification are given in Clauses 7 and 10 and the minimum frequency of
testing is given in Table 8. The manufacturer shall record the results of the tests specified above. These records shall at least include the
following information:  identification of the copper tube tested;  date of testing;  test results. 8.3.3 Manufacturer-specific FPC system requirements 8.3.3.1 Personnel The responsibility, authority and the relationship between personnel that manages, performs or verifies work
affecting product conformity, shall be defined. This applies in particular to per
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