welded, brazed and soldered joints symbolic … en 22553-1995 焊接... · bs en 24063 : 1992...

CEN ENS22553 94 w 3404589 OOqb855 080

BRITISH STANDARD

Welded, brazed and soldered joints - Symbolic representation on drawings

The European Standard EN 22553 : 1995 has the status of a British Standard

UDC U21.791 : 744.44.003.62

BS EN 22553 : 1995 IS0 2553 : 1992

Copyright European Committee for Standardization Provided by IHS under license with CEN

Not for ResaleNo reproduction or networking permitted without license from IHS

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CEN EN*22553 94 m 3404589 009b85b TL7 W

BS EN 22553 : 1995

Amd. No.

Committees responsible for this British Standard

Date Tkxt affected

The preparation of this British Standard was entrusted to Technical Committee WEE/1, Definitions and symbols for welding, upon which the following bodies were represented:

Aluminium Federation Associated Offices Technical Committee British Institute of Non-destructive Testing British Iron and Steel Producers’ Association City and Guilds of London Institute (Advisory Committee) Institute of Materials Institution of Structural Engineers National Association of Teachers in Further and Higher Education Railway Industry Association Society of Motor Manufacturers and Traders Ltd. Welding Institute Welding Manufacturers’ Association (BEAMA Ltd.)

This British Standard, having been prepared under the direction of the Engineering Sector Board was published under the authority of the Standards Board and comes into effect on 15 May 1995

O BSI 1995

The following BSI references relate to the work on this standard: Committee reference WEE/1 Draft announced in BSI News January 1995

ISBN O 580 24141 6



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CEN ENJ22553 94 m 3404589 0 0 ï b 8 5 7 953 m BS EN 22553 : 1995

Contents

p%e Committees responsible Inside front cover National foreword ii Foreword 2 Tèxt of EN 22553 : 1995 3

i Copyright European Committee for Standardization Provided by IHS under license with CEN


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CEN EN*<22553 9 4 3404589 0096858 89T - BS EN 22563 : 1995

National foreword

This British Standard has been prepared by Technical Committee WEEI1 and is is the English language version of EN 22553 : 1994 Welded, brazed and soldered joints - Symbolic representation on drawings, published by the European Committee for Standardization (CEN) . EN 22553 : 1994 was produced as a result of international discussion in which the UK took an active part. BS EN 22553 : 1995 supersedes BS 499 : Part 2 : 1980 which is withdrawn.

Cross-references

Publication referred to

EN 20544 : 1991 (IS0 544 : 1989) EN 24063 : 1991 (IS0 4063 : 1990)

EN 25817 : 1992 (IS0 5817 : 1992) EN 28167 : 1992 (IS0 8167 : 1989) EN 30042 : 1994 (IS0 10042 : 1992)

Corresponding British Standard BS EN 20544 : 1991 Specvication for sixes for filler meltals for manual welding BS EN 24063 : 1992 Welding, brazing, soldering and braze welding of metals. Nomenclature of processes and reference numbers for symbolic representations on drawings BS EN 25817 : 1992 Arc-welded joints in steel. &idance on quality levels for imper$ections BS EN 28167 1 1992 Specvieation for projections for resistance welding BS EN 30042 : 1994 Arc-welded joints in aluminium and its weldable alloys. Cuidance on quality levels for imperfections

Compliance with a British Standard does not of itself confer immunity from legal obligations.

ii Copyright European Committee for Standardization Provided by IHS under license with CEN


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CEN EN*Z2553 94 I 3404589 009b859 72b

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM

EN 22553

May 1994

UDC 62 I. 791 : 744.44.003.62

Descriptors: Drawings, technical drawings, welded joints, brazed and soldered joints, symbols, graphic symbols

English version


(IS0 2553 : 1992)

Joints soudés et brasés - Représentations symboliques sur les dessins (IS0 2553 : 1992)

SchweiP - und Löthähte - Symbolische Darstellung in Zeichnungen (IS0 2553 : 1992)

This European Standard was approved by CEN on 1994-05-12. CEN members are bound to comply with the CENKENELEC 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 bibliographieal references concerning such national standards 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 translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.

CEN European Committee for Standardization

Comité Européen de Normalisation Europäisches Komitee für Normung

Central Secretariat: rue de Stassart 36, B-1050 Brussels

O 1994 Copyright reserved to CEN members Ref. No. EN 22553 : 1994 E



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CEN EN*Z2553 94 3404589 009b8b0 448 Page 2 EN 22553 : 1994

Foreword The text of the International Standard IS@ 2553 : 1992 prepared by IS@/ïC 44, Welding and allied processes, was submitted to the Unique Acceptance Procedure (UAP) and was approved as EN 22553 on 1994-05-12 without any modification. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by November 1994. This European Standard has been prepared under a mandate given to CEN by the Commission of the European Communities and the European Free Trade Association, and supports essential requirements of EC Directive(s). According to the CENKENELEC Internal Regulations, the following countries are bound to implement this European Standard: Austria, Belguim, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.

Endorsement notice The text of the International Standard IS0 2553:1992 was approved by CEN as a European Standard with the modification of the design B.2 in annex B. NOTE. Normative references to international publications are listed in annex ZA (normative).

Contents

1 2 3 4

4.1 4.2

4.3 5 5.1 5.2

5.3 5.4 5.5

6 6.1 6.2 7 7.1 7.2 7.3 7.4

8

Scope Normative references General Symbols Elementary symbols Combinations of elementary symbols Supplementary symbols Position of the symbols on drawings General Relationship between the arrow line and the joint Position of the arrow line Position of the reference line Position of the symbol with regard to the reference line Dimensioning of welds General rules Main dimensions to be shown Complementary indications Peripheral welds field or site welds Indication of the welding process Sequence of information in the tail of the reference mark Examples for application of spot and seam joints

Annexes A Examples of use of symbols B Guidance for converting drawings

made in accordance with IS@ 2553 : 1974 into the new system in accordance with IS0 2553 : 1991

Normative references to international publications with their relevant European publications

Annex ZA (normative)

3 3 3 4 4

7 8

10 10

10 12 12

13 14 14 14 20 20 20 20

20

21

23

51

52



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EN 22553 : 1994


1 Scope

This International Standard prescribes the rules be applied for the symbolic representation welded, brazed and soldered joints on drawings.

to of

reference numbers íor symbolic representation on drawings.

IS0 5817:1992, Arc-welded joints in sfeel - Guidance on quality levels for imperfections.

IS0 6947:1990, Welds - Working positions - Defi- nitions of angles of slope and rotation.

2 Normative references IS0 8167:1989, Projections for resistance welding.

The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of ap- plying the most recent editions of the standards indicated below. Meinbers of IEC and IS0 maintain registers of currently valid International Standards.

IS0 128:1982, Technical drawings - General prin- ciples of presentation.

IS0 544: 1989, Filler materials for manual welding - Size requirements.

IS0 1302:1978, Technical drawings - Method of indicating surface texture on drawings.

IS0 2560: 1973, Covered electrodes for manual arc welding of mild steel and low alloy steel - Code of symbols for identification.

I S 0 3098-1:1974, Technical drawings - Lettering - Part I : Currently used characters.

I S 0 3581:1976, Covered electrodes for manual arc welding of stainless arid other similar high alloy steels - Code of symbols for idenfificalion.

IS0 4063:1990, Welding, brazing, soldering and braze welding of metals - Nomenclafure of processes and

1 ) To be published.

IS0 10042:-1', Arc-welded joints in aluminium and its weldable alloys - Guidance on qualify levels for imperfections.

3 General

3.1 Joints may be indicated with the general rec- ommendations for technical drawings. However, for the purpose of simplification, it is advisable to adopt, for usual joints, the symbolic representation de- scribed in this' International Standard.

3.2 The symbolic representation shall give clearly all necessary indications regarding the specific joint to be obtained without over-burdening the drawing with notes or showing an additional view.

3.3 This symbolic representation includes an elementary symbol which may be completed by

- a supplementary symbol;

- a means of showing dimensions;

- some complementary indications (particularly for workshop drawings).

3.4 In order to sirnpliv the drawings as much as possible it is recommended that references be made to specific instructions or particular specifications giving all details of the preparation of edges to be



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CEN ENm22553 94 m 3404589 009bBb2 210 m Page 4 EN 22553 : 1994

welded, brazed and soldered and/or welding, brazing and soldering procedures, rather than showing these indications on the drawings of the welded parts.

If there are no such instructions, the dimensions re- lating to the preparation of the edges to be welded, brazed and soldered and/or welding, brazing and soldering procedures can be ciose to the symbol.

The symbol shall not be taken to prejudge the process to be employed.

The elementary symbols are shown in table 1.

If the joint should not be specified but only be represented that the joint will be welded, brazed or soldered, the following symbol shall be used:

4 Symbols

4.1 Elementary symbols

The various categories of joints are characterized by a symbol which, in general, is similar to the shape of the weld to be made.

Table 1 - Elementz Designation

Butt weld between plates with raised edges') ; edge flanged weld /USA/ (the raised edges being melted down completely)

Square butt weid

Single4 butt weld

Single-bevel butt weld

Single-V butt weld with broad root face

- --

Cingle-bevel butt weld with broad toot face

Cingle-U butt weld (parallel or sloping sides)

symbols Illustration Symbol

V

Y

Y

Y Copyright European Committee for Standardization Provided by IHS under license with CEN


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No.

8

9

10

li

12

13

14

15

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~

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EN 22553 : 1994

Designation

Single4 butt weld

Backing run; back or backing weld IUSAI

Fillet weld

Plug weld; plug or slot weld /USAI

Spot weld

Seam weld

Steep-flanked cingle-V butt weld

Steep-flanked cingle-bevel buti weld

Illustration Symbol

W

n

O

v



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CEN EN*22553 9 4 3404589 009b864 093 Page 6 EN 22553 : 1994

Designation

Edge weld

Surfacing

Surface joint

Inched joint

Fold joint

Illustration Symbol

m

No.

16

17

18

19

20

welds (symbol 2) with the weld thickness s shown (see table5)



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Illustration

4.2 Combinations of elementary symbols

When required, combinations of elementary symbols can be used.

The elementary symbols are to be combined for welding from both sides in such a manner arranging

table 2 and applications for symbolic representation in tableA.2.

NOTE 1 Table2 gives a collection of combinations of elementary symbols for symmetrical welds. For the symbolic representation the elementary symbols are arranged Symmetrically at the r0fWmX? line (See taMeA.2). For the

bols may be represented without the reference line. the applicable elementary symbols symmetrical to lise Of Out of symbolic the *ym- the reference line. Typical examples are given in

Symbol

Table 2 - Combined symbols for symmetrical welds (examples) Designation

Double-V butt weld (X weld)

Double-bevel butt weid

Double-V butt weld with broad root face

Double-bevel butt weld with broad root face

-.

Double4 butt weld

X K x K

x



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4.3 Supplementary symbols

Elementary symbols may be completed by a symbol characterizing the shape of the external surface or the shape of the weld.

The recommended supplementary symbols are given in table3.

The absence of a supplementary symbol means that the shape of the weld surface does not need to be indicated precisely.

Examples of combinations of elementary and supplementary symbols are given in tables 4 and A.3.

NOTE 2 Although i t is not forbidden to associate sev- eral symbols, it is better to represent the weld on a sep- arate sketch when symbolization becomes too difficult.

Table 3 - Supplementary symbols I Shape of weld surface or weld I Symbol 1

I - I I a) Flat (usually finished flush)

b) Convex I --- I c ) Concave

d) Toes shall be blended smoothly

e) Permanent backing strip used m f) Removable backing strip used I



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Table4 gives examples of application of the cup- plementary symbols.

Table 4 - Examples of application of supplementary symbols Designation

Flat (flush) single-V butt weld

Convex double-V weld

-_-I _---- Concave fillet weid

Flat (flush) single-\/ butt weld with flat (flush) backing run

Single-V butt weid with broad root face and backing run

- -

Flush finished siiigle-V butt weld

Fillet weld with smooth blended face

.. - - Illustration Symbol

v

d ” V

.-- 1



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5 Position of the symbols on drawings

5.1 General

The symbols covered by these rules form only part of the complete method of representation (figure 1). which comprises in addition to the symbol (3) itself:

- an arrow line (1) per joint (see figure2 and figure 3);

- a dual reference line, lines, one continuous ception, see note 3);

- a certain number of tional signs.

NOES

consisting of two parallel and one dashed (2) (ex-

dimensions and conven-

3 The dashed line can be drawn either above or beneath the continuous line -- -. (see also 5.5 and annex 6).

For symmetrical welds, the dashed line is unnecessary and should be omitted.

4 The thickness of lines for arrow line, reference lins, symbol and lettering shall be in accordance with the thickness of line lor dimensioning in accordance with I S 0 128 and IS0 3098-1. respectively.

The purpose of the following rules is to define the location of welds by specifying

- the position of the arrow line;

- the position of the reference line;

- the position of the symbol.

The arrow line and the reference line form the complete reference mark. If details are given, e.g. for processes, acceptance levels. position, filler and auxiliary materials (see clause 7), a tail shall be added at the end of the reference line.

5.2 Relationship between the arrow line and the Joint

The examples given in figure2 and figure3 explain the meaning of the terms

- “Arrow side” of the joint;

- “Other side” of the joint.

NOTE 5 The position of the arrow in these figures is chosen for purposes of clarity. Normally, it would be placed immediately adjacent to the joint.

NOTE 6 See figure2.



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2a 3

Figure 1 - Method of representation

Figure 2 - T joint with one fillet weld

Joint A

Flgure 3 - Cruciform jolnt with two fillet welds



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CEN ENJ22553 94 I 3404589 0096870 39’7 I Page 12 EN 22553 : 1994

5.3 Position of the arrow line

The position o Lm.e arrow line with respect to the weld is generally of no special significance [see figures 4a) and 4 b)]. However, in the case of welds of types 4, 6 and 8 (see table l), the arrow line shall point towards the plate which is prepared [see figures 4c) and 4d)l.

H a)

The arrow line

- joins one end of the continuous reference line such that it forms an angle with it;

- shall be completed by an arrow head.

5.4 Position of the reference line

The reference line shall preferably be drawn parallel to the bottom edge of the drawing, or i f impossible perpendicular.

B b )

Figure 4 - Position of the arrow line



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5.5 Position of the symbol with regard to the reference line

The symbol is to be placed either above or beneath the reference line, in accordance with the following regulation:

- The symbol is placed on the dashed line side if the weld (weld face) is on the other side of the joint [see figure 5 b)].

NOTE 7 In the case of spot welds made by projection welding, the projection surface is to be considered as the external surface of the weld.

- The symbol is placed on the continuous line side of the reference line if the weld (weld face) is on the arrow side of the joint [see figure 5 a)].

i r- Figure 5 - Position of the symbol according to the reference fine



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CEN EN*it22553 9 4 3404589 009b872 LbT Page 14 EN 22553 : 1994

6 Dimensioning of welds

6.1 General rules

Other dimensions of less importance may be indicated if necessary.

6.2 Main dimensions to be shown

The dimension that locates the weld in relation to

symbolization but on the drawing.

Each weld symbol may be accompanied by a certain the edge of the sheet shall not appear in the number of dimensions.

These dimensions are written as follows, in accordance with figure6:

a) the main dimensions relative to the cross-section are written on the left-hand side of (¡.e. before) the symbol;

b) longitudinal dimensions are written on the right- hand side of (¡.e. after) the symbol.

The method of indicating the main dimensions is defined in table5. The rules for setting down these dimensions are also given in this table.

6.2.1 The absence of any indication following the symbol signifies that the weld is to be continuous over the whole length of the workpiece.

6.2.2 In the absence of any indication to the con- trary, butt welds are to have complete penetration.

6.2.3 For the fillet welds there are two methods to indicate dimensions (see íigure 7). Therefore, the letters a or z shall always be placed in front of the value of the corresponding dimension as follows:

To indicate deep penetration of fillet welds the throat thickness is ,r, see figure 8.

Figure 6 - Examples of the principle 6.2.4 In the case of plug or slot welds with bevelled edges; it is the dimension at the bottom of the hole which shall be taken into consideration.

Figure 7 - Methods of indlcating dimensions for fillet welds



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NOTE - For deep penetration of fillet welds, the dimensions are indicated as s8a6 b, for example.

Figure 8 - Methods of indicatlng dimensions for deep penetration of fillet welds



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CEN ENS22553 94 W 3404589 0096874 T32 W Page 16 EN 22553 : 1994

Table 5 - Main dimensions Designation of welds

Butt weld

Butt weld between plates with raised edges

Conti nuou s fi I let weld

--

intermittent fillet weid

Illustration

. . . ._ ._



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Definition

S minimum distance from the surface of the part to the bottom of the penetration. which cannot be greater than the thickness of the thinner part.

s : minimum distance from the external surface of the weld to the bottom of the penetration.

a : height of the largest isosceles triangle that can be inscribed in the section.

2 : side of the largest isosceles triangle that can be inscribed in the section.

--.

I :

(e) :

n : number of weld elements.

length of weld (without end craters).

distance between adjacent weld elements.

(see No. 3)

inscription

V (see 6.2.1 and 6.2.2)

S II (see 6.2.1)

5 Y (see 6.2.1)

S II [see 6.2.1 and footnote i) to tablei]

a n z n

(see 6.2.1 and 6.2.3)

zn nxltel (see 6.2.3)



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Table 5 - Maln dimenslons (concluded) Designation of weld.

Staggered intermittent fillet weld

Plug or slot weld

Seam weld

Plug weld

Spot weld

illustration



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Definition

I C : width of weld

n : (see No. 4)

(e) : spacing

d : diameter of hole

n : (see No. 4)

(e) : spacing

n : diameter of spot

Inscription

L

(see 6.2.3)

(see 6.2.4)



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EN 22553 : 1994

CEN ENS22553 94 m 3404589 0096878 b88 m

7 Complementary indlcatlons

Complementary indications may be necessary in order to specify some other characteristics of welds. For example:

7.1 Peripheral welds

When the weld is to be made all around a part, the symbol is a circle, as shown in fìgure9.

L--.--.-.- --J

Figure 9 - Indication of peripheral weld

7.2 Field or site welds

A flag is to be used to indicate the field or site weld, as shown in figure I O .

Figure 10 - Indication of field or site weld

fork, at the end of the reference line remote from the reference line.

Figure 11 gives an example of its use.

The list giving the correspondance between the numbers and the process is given in IS0 4063.

Figure 11 - Indication of welding process

7.4 Sequence of informafion In the tail of the reference mark

The information for joints and the dimensions can be supplemented by further information in the tail, in the following order:

process (e.g. in accordance with IS0 4063);

acceptance level (e.g. in accordance with IS0 5817 and IS0 10042);

working position (e.g. in accordance with IS0 6947);

filler materials (e.g. in accordance with IS0 544. IS0 2560, I S 0 3581).

The individual items are to be separated b) (solidus}.

In addition, a closed tail is possible which indicates specific instruction (e.g. procedure sheet) by a reference sign, see figure 12.

7.3 Indication of the welding process

If required, the welding process is to be symbolized by a number written between the two branches of a

J Figure 12 - Reference information



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1

111/1SO 5817 D/

I S 0 258(tE 51 2 RR Z?

l-

Page 21 EN 22553 : 1994

EXAMPLE

Single-V butt weld with backing run (see figure 13), produced by manual metal-arc welding (reference number 111 in accordance with IS0 4063), required acceptance level in accordance with IS0 5817, flat position PA in accordance with IS0 6947, covered electrode I S 0 2560-E 51 2 RR 22.

Hlustmtion

8 Examples for application of spot and seam joints

In the case of seam and spot joints (welded, brazed or soldered), joints are made at the interface between the two lapped parts or by melt-through of one of the two parts (see figures 14 and 15).

Symbdc reprnssntation

11lllSO 5817-Dl

IS0 a60-E 51 2 RR 22

Tag view

Figure 13 - Singie-V butt weid with backing run

TOP-

Figure 14 - Intermittent resistance seam welds



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u- r

I-- 7

Figure 15 - Spot welds



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EN 22553 : 1994

Annex A (informative)

Examples of use of symbots

Tables A.1 to A.4 give some examples of the use of symbols. The representations shown are given simply for explanation.

Designation Symbol

(Numbers refer to table 1)

Butt weld between plaies with

raised edges

Square butt weld

2

-- Representation

illustration



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Symbolization

either or



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Table A.l - Examdes of the use of elementary

No.

5

-

6

7

8

-

9

Designation Symbol

(Numbers refer to table i)

Single-V butt weld

3


Illustration

mbols (con finuedl Representation

a-& I



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Symbolization I either r

E] E]

or



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Table A.l - Examples of the use of elementary s -

No.

-

10

ii

-

12

.-

13

-

14

Designation Symbol



4

Single-V butt weld with broad

root face

Y 5

Single-bevel butt weid with broad

root face

Y 6

Single-U butt weld

Y 7

Illustration

nbols (continued) Representation

I



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I Symbolization

-

either

I or

r Copyright European Committee for Standardization Provided by IHS under license with CEN


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Table A.l - Examples of the use of elementary s -

No.

15

16

17

18

-

Designation Symbol


Single-J butt weld

8

Fillet weid

CL 10

_.

Illustration




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CEN ENt22553 94 I 3404589 0096888 527 €'age 30 EN 22663 : 1994

Symbolization

either 1 or



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Table A.l -

Page 31 EN 22553 : 1994

CEN EN*Z2553 94 3404589 0096889 463 E

Examples of the use of elementarv s

Designation Symbol

(Numbers refer .to table i)

Fillet weld

n 18

Illustratlon

nbols (continued) - Representation

+a- a-& I



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CEN EN*22553 94 H 3404589 009b890 i185 = Page 32 EN 22553 : 1994

Symbolization

either % or



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Table -

No.

-

22

-

23

-

24

A.1 - Examples of the use of elementary s 1

25

-

Designation Symbol

(Numbers refer Illustration : to table 1)

Plug weid

n 11

Spot weld

O 12

Page 33 EN 22553 : 1994


E _ _ _ -



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CEN ENs22553 94 M 3404589 009b892 T58 M Page 34 EN 22553 : 1994

Symbolization

either or



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CEN EN*Í22553 94 e 3404589 0096893 994 = Page 35

EN 22553 : 1994

Table A,l - Examples of the use d elementary symbols (concluded)

no.

26

-

27

ûesignation Symbol

(Numbers refer to table i)

Seam weld

13

Illustration

Representation I

I I



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CEN ENJ22553 94 m 3404589 0096894 820 m Page 36 EN 22563 : 1994

I

Symbollzation

1

or

m



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CEN ENx22553 ï 4 3404589 0 0 ï b ö ï 5 7b7 = Page 37

EN 22553 : 1994

Table A.2 - Examples of combinations of elementary symbols

Designation Synibol


Butt weld between plates with raised

edges

JL 1 and backing run

w9 1-9

Square butt weld

I I 2 welded from both sides

2-2

Single-V butt weld

v3 and backing run

w 9 3-9

Double-V butt weld

v3 (X weld)

3-3

Illustration

Representation

€36- I



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CEN EN*22553 94 = 3404589 0096896 bT3 Page 38 EN 22553 : 1994

Symbolization



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CEN EN*K22553 9Y 3404589 0096897 53T E Page 39

EN 22553 : 1994

Table A.2 - Examples of combinations of elementar

Mo.

6

7

8

-

9

-

i o

-

Designation Symbol


Double bevel butt ws

v4 (K weld)

Double V butt weM with broad root fa0

5-5 .-

Doubla bevel butt wt with broad root facc

6 - 6 Double U butt weld

Y7

7-7

Illustration

symbols (continued) Representation



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CEN EN+22553 94 I 3404589 0096898 476 I Page 40 EN 22553 : 1994

Symbolization I F-- either or



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EN 22553 : 1994

CEN ENx22553 9 4 IU 3404589 0096899 302

Tabie A.2 - Exambles of combinations of elementary symbols (concluded) -

No.

-

11

12

-

13

-

14

Designation Symbol


Double J butt weld

8-8

Single V butt weld

v3 and single U butt weld

Y7 3-7

Fillet weld

and fillet weld

10-10

Illustratioir

Representation

a-& I

----1



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CEN EN*F22553 94 I 3404587 0096900 9511 M Page 42 EN 22663 : 1994

7- Symbolization

either

.-.I_- -.-- I-

L \A- 17

or



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EN 22553 : 1994

Table A.3 - Examples of combinations of elemental

Symbol Illustration

and supplementary symbols ~ ~ _ _

Representation



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CEN ENx22553 9 4 3404589 009b902 727 Page 44 EN 22553 : 1994

Symbolltatlon

either or

L e +



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CEN EN*22553 9 4 W 3404589 0096903 6 6 3 W Page 45 EN 22553 : 1994

No.

6

-

7

Table A.3 - Examdes of combinations of elementary and supplementary symbols (concluded)

Symbol Illustration

x W

V IHRJ

Representation



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CEN ENW2553 74 I 3404587 0096704 5 T T I Page 46 EN 22553 : 1994

Symbolization

-- I-- e¡ t her or



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-

No.

-

1

-

2

3

CEN ENx22553 94 3404589 0096905 43b Page 47

EN 22553 : 1994

Table A.4 - Examples of exceptional cases

illustration

Representation *- a-& I



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CEN ENr22553 9 4 3404589 009b90b 372 = Page 48 EN 22663 : 1994

not recommended

Symbolization

incorrect



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CEN ENa22553 74 IBI 3404589 007b707 209 = Page 49

EN 22553 : 1994

Table A.4 - Examples of exceptional cases (concluded) -

No.

-

6

7

8

Illustration

Representation

a-&- I

-- - NOT€ 1 When the arrow cannot point to a joint, symbolization cannot be used.

-



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Page M) EN 22663 : 1994

Symbolization

or incorrect

-

either

not recommended

not recommended

pl



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~ ~~ ~

CEN ENm22553 94 3404589 0096909 O B 1 H Page 51

EN 22553 : 1994

Annex B (i nfo rmat ive)

Guidance for converting drawings made in accordance with IS0 25531974 into the new system in accordance with IS0 2553:1991

As an interim solution for converting old drawings made in accordance with IS0 2553:1974, Welds - Symbolic representation on drawings, the following examples show acceptable methods. This chal!, however, be considered as a provisional solution only during the change-over period.

For new drawings, the dual-reference line ___________. shall always be used.

I

Figure B.l - Weld on arrow side

Figure 8 .2 - Weld on other side

NOTE 8 pecially important íor fillet welds to add the letter o or z in front of that dimension as the use of dimensioning leg length (2) or throat thickness (a) has been connected with the position of weld symbol on the reference line.

When converting drawings made to one of the methods E or A in IS0 2553:1974 into this new system, it is es



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CEN ENs22553 9 4 H 3404589 00’4bqLO B T 3 = Page 52 EN 22553: 1994

Annex ZA (normative) Normative references to international publications with their relevant European publications This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments).

Publication Year

IS0 544 1989

IS0 4063 1990

IS0 5817 1992

IS0 8167 1989 IS0 10042 1992

Title EN/HD Year

Filler materials of manual welding - EN 20544 1991 Size requirements Welding, brazing, so lMng , and braze EN 24063 1991 welding of metals - Nomenclature of processes and reference numbers fo r symbolic representation on drawings Arc-welded joints in steel - Guidance on EN 25817 1992 quality levels for imperfections Projections for resistance welding EN 28167 1992 Arc-welded joints in aluminium and its EN 30042 1994 weldable alloys - Guidance on quality levels for imperfections



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CEN ENx22553 94 3404589 00969LL 73T BS EN 22553: 1995 IS0 2553 : 1992

BSI 389 Chiswick High Road London W4 4AL

9505- 9- O.5k-FP

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