EN 287-1:2011

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Preskušanje varilcev - Talilno varjenje - 1. del: JeklaPrüfung von Schweißern - Schmelzschweißen - Teil 1: StähleEpreuve de qualification des soudeurs - Soudage par fusion - Partie 1 : AciersQualification test of welders - Fusion welding - Part 1: Steels25.160.01Varjenje, trdo in mehko spajkanje na splošnoWelding, brazing and soldering in generalICS:Ta slovenski standard je istoveten z:EN 287-1:2011SIST EN 287-1:2011en,fr,de01-november-2011SIST EN 287-1:2011SLOVENSKI
STANDARDSIST EN 287-1:2004/AC:2004SIST EN 287-1:2004/A2:2006SIST EN 287-1:20041DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 287-1
July 2011 ICS 25.160.01 Supersedes EN 287-1:2004English Version
Qualification test of welders - Fusion welding - Part 1: Steels
Epreuve de qualification des soudeurs - Soudage par fusion - Partie 1 : Aciers
Prüfung von Schweißern - Schmelzschweißen - Teil 1: Stähle This European Standard was approved by CEN on 16 June 2011.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, 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 STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 287-1:2011: ESIST EN 287-1:2011

Welder's qualification test certificate . 30Annex B (informative)
Designation examples . 31SIST EN 287-1:2011

Job knowledge . 35C.1 General . 35C.2 Requirements . 35C.2.1 Welding equipment . 35C.2.2 Welding process
................................................................................................................................. 36C.2.3 Parent metals ....................................................................................................................................... 36C.2.4 Welding consumables ......................................................................................................................... 36C.2.5 Safety precautions .............................................................................................................................. 37C.2.6 Welding sequences/procedures ........................................................................................................ 37C.2.7 Joint preparation and weld representation....................................................................................... 37C.2.8 Weld imperfections ............................................................................................................................. 37C.2.9 Welder qualification ............................................................................................................................ 38Annex ZA (informative)
Relationship between this European Standard and the Essential Requirements of EC Directive 97/23/EC . 39Bibliography . 40 SIST EN 287-1:2011

manual metal arc welding; 114
self-shielded tubular-cored arc welding; 121
submerged arc welding with solid wire electrode (partly mechanized); 125
submerged arc welding with tubular cored electrode (partly mechanized); 131
MIG welding with solid wire electrode; SIST EN 287-1:2011

MAG welding with solid wire electrode; 136
MAG welding with flux cored electrode; 138
MAG welding with metal cored electrode; 141
TIG welding with solid filler material; 142
Autogenous TIG welding; 143
TIG welding with tubular cored filler material; 145
TIG welding using reducing gas and solid filler material; 15
plasma arc welding; 311
oxy-acetylene welding. NOTE The principles of this standard can be applied to other fusion welding processes. 4.3 Symbols and abbreviations 4.3.1 For test pieces BW
butt weld D
outside pipe diameter FW
fillet weld l1
length of test piece l2
half width of test piece lf
examination length P
plate ReH
yield strength s1
deposited thickness of weld metal for welding process 1 s2
deposited thickness of weld metal for welding process 2 t
material thickness of test piece (plate or wall thickness) T
pipe 1) 4.3.2 For consumables nm
no filler metal A
acid covering
1) The word "pipe" alone or in combination, is used to mean "pipe", "tube" or "hollow section". SIST EN 287-1:2011

basic covering or electrode core - basic C
cellulosic covering M
electrode core - metal powder P
electrode core - rutile, fast freezing slag R
rutile covering or electrode core – rutile, slow freezing slag RA
rutile-acid covering RB
rutile-basic covering RC
rutile-cellulosic covering RR
rutile-thick covering S
solid wire/rod V
electrode core - rutile or basic / fluoride W
electrode core - basic / fluoride, slow freezing slag Y
electrode core - basic / fluoride, fast freezing slag Z
electrode core - other types 4.3.3 For other weld details bs
welding from both sides lw
leftward welding mb
welding with backing ml
multi layer nb
welding without backing rw
rightward welding sl
single layer
ss
single-side welding 4.3.4 For bend tests A
minimum tensile elongation required by the material specification d
diameter of the former or the inner roller ts
thickness of the bend test specimen SIST EN 287-1:2011

Key 1 Welding process 1 (nb) 2 Welding process 2 (mb) according to Table 5 for welding process 1: t = s1 for welding process 2: t = s2 according to Table 5 with t = s1 + s2
Key 1 Welding process 1 according to Table 5 for welding process 1: t =
s1 for welding process 2: t = s2 according to Table 5 t = s1 + s2 welding process 1 only for welding of the root area
Key 2 Welding process 2 3 Welding with backing (mb) 4 Welding without backing (nb)
5.3 Product type The qualification test shall be carried out on plate or pipe. The following criteria are applicable: a) Test piece welds with outside pipe diameter D > 25 mm cover welds in plates; b) Test piece welds in plates cover welds in pipes of outside pipe diameter D ≥ 150 mm, for welding positions PA, PB and PC, according to range of qualification of Table8; c) Test piece welds in plates cover welds in pipe of outside pipe diameter D ≥ 500 mm for all other welding positions. 5.4 Type of weld The qualification test shall be carried out as butt or fillet weld. The following criteria are applicable: a) butt welds cover butt welds in any type of joint except branch connections (see also 5.4 d)); b) butt welds do not qualify fillet welds or vice versa; SIST EN 287-1:2011

CEN ISO/TR 20172, CEN ISO/TR 20173 and CEN ISO/TR 20174. 5.5.2 Range of qualification The welding of any one metal in a material group covers qualification on the welder for the welding of all other metal within the same material group as well as other material groups according to Table 2. When welding parent materials outside the grouping system, a separate qualification test is required. Qualification of dissimilar metal joints: When using filler metals from the material group 8 or 10 (see Table 2), all combinations with the material group 8 or 10 to other material groups are covered. A qualification test made on wrought material groups gives qualification for cast material and a mixture of cast and wrought material in the same material group. SIST EN 287-1:2011

of the test piece Range of qualification 1.1 1.2 1.4 1.3 2 3 4 5 6 7 8 9 10 11
9.1 9.2 + 9.3
1.1, 1.2, 1.4 × – – – – – – – – – – – – 1.3 × × × × – – – – – × – – × 2 × × × × – – – – – × – – × 3 × × × × – – – – – × – – × 4 × × × × × × × × – × – – × 5 × × × × × × × × – × – – × 6 × × × × × × × × – × – – × 7 × × × × × × × × – × – – × 8 – – – – – – – – × – × × – 9 9.1 × × × × – – – – – × – – × 9.2 + 9.3 × – – – – – – – – – × – – 10 – – – – – – – – × – × × – 11 × × – – – – – – – – – – × a Material group according to CEN ISO/TR 15608. Key × indicates those material groups for which the welder is qualified. – indicates those material groups for which the welder is not qualified.
5.6 Filler materials Welding with filler material qualifies for welding without filler material, but not vice versa. The ranges of qualification for filler materials are given in Tables 3 and 4. Table 3 — Range of qualification for covered electrodes a, b Electrode used in the test
Range of qualification A, RA, RB, RC, RR, R B C A, RA, RB, RC, RR, R × – – B × × – C – – × a Abbreviations, see 4.3.2. b The type of core used in the qualification test of welders for root run welding without backing (ss nb) is the type of
core qualified for root run welding in production. Key ×
indicates those covered electrodes for which the welder is qualified. –
indicates those covered electrodes for which the welder is not qualified.
(R, P, V, W, Y, Z) – – – × a Abbreviations, see 4.3.2. b The type of core used in the qualification test of welders for root run welding without backing (ss nb) is the type of
core qualified for root run welding in production. Key ×
indicates those filler materials for which the welder is qualified. –
indicates those filler materials for which the welder is not qualified.
5.7 Dimensions The welder qualification test of butt welds is based on the material thickness and outside pipe diameters. The ranges of qualification are specified in Tables 5 and 6. NOTE It is not intended that material thickness or outside pipe diameters should be measured precisely but rather the general philosophy behind the values given in Tables 5 and 6 should be applied. For fillet welds the range of qualification for material thickness is specified in Table 7. For test pieces of different outside pipe diameters and deposited thicknesses, the welder is qualified for:  thinnest through to the thickest weld metal and/or parent metal thickness qualified (refer to Table 5); and  the smallest through to the largest diameter qualified (refer to Table 6). Table 5 — Range of qualification of material thickness and deposited thickness of weld metal (multi process) of test piece for butt welds Dimension in millimetres Thicknessa
t Range of qualification t < 3 t to 2 × t b 3 ≤ t ≤ 12 3 to 2 × t c t > 12 ≥ 5 a For multi processes, s1 and s2 of Table 1 apply. b For oxy-acetylene welding (311): t to 1,5
× t . c For oxy-acetylene welding (311): 3 mm to 1,5
× t . SIST EN 287-1:2011
Table 7 — Range of qualification of material thickness of test piece for fillet welds a Dimension in millimetres Material thickness of test piece t Range of qualification t < 3 t to 3 t ≥ 3 ≥ 3 a See also Table 10. In the case of branch welding, the material thickness criteria to which Table 5 applies and the outside pipe diameter criteria to which Table 6 applies is as follows:  Set on: The material thickness and outside pipe diameter of the branch;  Set in or set through: The material thickness of the main pipe or shell and the outside pipe diameter of the branch. 5.8 Welding positions The range of qualification for each welding position is given in Table 8. The welding positions and symbols refer to EN ISO 6947. The test pieces shall be welded in accordance with the testing positions according to EN ISO 6947. Welding two pipes with the same outside pipe diameter, one in welding position
...