welding Symbol

(1)

Welded, brazed and soldered joints

Symbolic representation on drawings

(IS0 2553

:

1992)

English version

of

DIN EN

22553

ICs 01.100.20; 25.160.40

Descriptors: Welds, soldered joints, brazed joints, symbols. Schweiß- und Lötnähte

-

Symbolische Darstellung in Zeichnungen (IS0 2553 : 1992)

-

DIN

EN 22553

-

Supersedes August 1994 edition.

European Standard EN

22553:

1994 has the status

of

a DIN Standard.

National foreword

This standard has been published in accordance with a decision taken by CEN/TC 121 to adopt, without alteration, International Standard I S 0 2553 as a European Standard.

The responsible German body involved in its preparation was the Normenausschuß Schweißtechnik (Welding Standards Committee).

It should be noted that a major amendment has been made as regards the position of the symbol relative to the reference line. Hitherto, the symbol has to be placed on the continuous line, now it is to be placed on the dashed line.

The DIN Standards corresponding to the International Standards referred to in clause 2 of the EN are as follows: IS0 Standard DIN Standard

I S 0 128

I S 0 544 DIN EN 20544

I S 0 1302 DIN I S 0 1302 I S 0 2560 DIN EN 499

DIN IS0 10209-2, DIN 6-1 and DIN 6-2, DIN 15-1 and DIN 15-2

I S 0 3098-1 DIN 6776-1 DIN 3581 DIN 8556-1

I S 0 4063 DIN EN 24063

IS0 5817 DIN EN 2581 7 IS0 6947 DIN IS0 6947')

I S 0 8167 DIN EN 28167

I S 0 10042 DIN EN 30042

Amendments

Amendments have been made only to the German version of DIN EN 22553, August 1994 edition. Previous editions

DIN 1911: 1927-04, 1959-10; DIN 1912-1: 1927-04,1932-05,1937-05, 1956-05,1960-07;

DIN 1912-2: 1927-04, 1932-05,1937-05; DIN 1912-3: 1961-03,1982-08; DIN 1912-5: 1976-06, 1979.02,1987-12; Supplement 1 to DIN 1912-5: 1987-12; DIN 1912-6: 1976-06, 1979-02; DIN EN 22553: 1994-08.

Standards referred t o

(and not included in Normative references and Annex ZA) DIN 6-1 DIN 6-2 DIN 15-1 DIN 15-2 DIN 6776-1 DIN 8556-1

Technical drawings

-

Representation in normal projection

-

Views and special representations Technical drawings

-

Representation in normal projection

-

Sectional views

Technical drawings

-

Lines

-

Basic principles Technical drawings

-

Lines

-

General application Technical drawings

-

Lettering

-

Characters

Filler metals for welding stainless and heat resisting steel

-

Designation and technical delivery conditions

*) At present at the stage of draft.

Continued overleaf. EN comprises 53 pages.

r

(2)

Page 2 DIN EN 22553 : 1997-03 DIN EN 499 DIN EN 20544 DIN EN 24063 DIN EN 25817 DIN EN 28167 DIN EN 30042

Covered electrodes for manual metal arc welding of non alloy and fine grain steels

-

Classification Filler materials for manual welding

-

Size requirements (IS0 544: 1989)

Welding, brazing, soldering and braze welding of metals

-

List of process names and reference numbers for use in technical documentation (IS0 4063: 1990)

Arc-welded joints in steel

-

Guidance on quality levels for imperfections (IS0 5817:1992) Projections for resistance welding (IS0 8167: 1989)

Arc-welded joints in aluminium and its weldable alloys

-

Guidance on quality levels for imperfections (IS0 10042 : 1992)

Reproduced by IHS under license with DIN ENG License provided by I.H.S. Germany

(3)

EUROPEAN CTANDARD

NORME

EUROPÉENNE

EUROPAISCHE NORM

EN 22553

May 1994 ICs 01.100.20: 25.160.40

Descriptors: Welds, soldered joints, brazed joints, symbols.

English version

Welded, brazed and soldered joints

Symbolic

representation on drawings

(IS0

2553

:

1992)

Joints soudés et brasés

-

Répresentations symboliques sur les Darstellung in Zeichnungen dessins (IS0 2553 : 1992)

Schweiß- und Lötnähte

-

Symbolische (IS0 2553 : 1992)

This European Standard was approved by CEN on 1994-05-12 and is identical to the IS0 Standard as referred to.

CEN members are bound to comply with the CENXENELEC 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 Central Secretariat or to any CEN member.

The European Standards exist 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, Por- tugal, Spain, Sweden, Switzerland, and the United Kingdom.

(EN

European Committee for Standardization Comité Européen de Normalisation Europäisches Komitee für Normung

Central Secretariat: rue

de

Stassart 36, B-1050 Brussels

O 1994. CEN

-

All rights of exploitation in any form and by any means reserved worldwide for CEN national members.

(4)

Page 2 EN 22553 : 1994

Foreword

In 1993, International Standard

IS0 2553 : 1992 Welded, brazed and soldered joints

-

Symbolic representation on drawings was submitted to the Unique Acceptance Procedure.

The result was positive.

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 the relevant EC Directives.

This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, and conflicting national standards withdrawn, by November 1994 at the latest.

In accordance with the CENKENELEC Internal Regulations, the following countries are bound to implement this European Standard:

Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, and the United Kingdom.

Endorsement notice

The text of the International Standard I S 0 2553 : 1992 was approved by CEN as a European Standard without any modifica- tion.

NOTE: Normative references to international publications are listed in Annex

ZA

(normative).

(5)

I S 0

2553:1992(E)

Paar?

2 Normative references . . . 1

3

General ... 1 4 Symbols ... 2 4.1 Elementary symbols . . . 2

4.2 Combinations of eleinentaiy symbols 5 4.3 Sup p I e ment a 1 \it s y rn 1101 s 6 5 Position o f i h e symbols o11 diawingc 8 5.1 General 8 5.2 Relationship between the

arrow

line and the joint . . . 8

5.3 Position of the arrow line 10 5.4 Position of

the

reference line 10 5.5 Position of lhe r;ynihol with regard to ttia reference line .. 11

6 Dimensioning of weldc 12 6.1 General riiles . . . 12

6.2 Main dimension., to be sliowii 12

7 Complementary indications 18

7.1 Peripheral welds 18

7.2 Field or site welds 18

7.3

Indication of the welding process 18

7.4 Sequence

of

infoimation iii the

tail

of the i-efei-ence mark 18 8 Examples for applicalion of spot and

wain

loints 19

(6)

I S 0 2553:1992(E)

Annexes

A

Examples

of use of symbols . . . 22 €3 Guidance for converting drawings riiade in accordance with I S 0

2553:1974 into

t h e

new system

in

accordance with I S 0

2553:1991 . . . 50

iii

(7)

1 Scope

This International Standard prescribes tlie rules lo be applied for the symbolic representation of welded. hrnzed and soldered joints o n di-awings.

refererice numbers for symbolic representation or) drawings.

IS0

5817:1992. Arc-welded joirits in steel - Guidance or1 quality levels for impcrfeciions.

IS0

6947:1990, Welds

-

Working positioris

niiioris of angles of slope and rotation.

Defi-

2 Normative references

IS0

8167:1989. Projections for resistance welding

T

lie

fol low i ng

s

t a nd

a

rds conta in p ravi sions which. through refer-ence i n this text. constitute provisions of this Iiiteriiational Standard. At the timt? of publi- caiion. t h e editions indicated were valid. All stan- dai-ds are subject

to

revision. arid parties io agi-eenieiits based o n this International Standard are encouraged i o investigate the possibility of ap- plying the most recent editions of

the

slaiidards indicated below. Members of IEC aiid I S 0 maintain registers of currently valid International Standards. I S 0 128: 1982, Technical drawings General prin- ciples of presentation.

IS0

541: 1989. Filler niatel-ials for maiwal welding - Size reqiiir-ements

IS0

1302.1978, Technical drawings -- Meíliod o f in-

dicating surface iexfwe on drawings

IS0

2560 1973. Covered electrodes for nianual arc welding oí mild steel arid low alloy steel -- Cod? of

symbols for idenlificaiion

Is0

3008-1 1974, ïec/inica/ drawings - /Letienna - Part 1 Crirrentiy used characters

I S 0 3581.1976, Covered electrodes for manual a i c welding of stairiless arid other sirnilar 1iigIi alloy

Sfeels

- Code O f SyIH/JO/S for iderifificalion

IS0

4063: 1990. Welding. brazing. solderitig and braze welding of rneials -- NonierJclature o/ processes aiid

1) To be publislieci

__---

IS0 10042:--". Arc-welded

joints

in aluminium and ifs weldable alloys -- G i l i d m c e

or1

quality levels for iniperíectionx

3 General

3.1

Joiiits rnay be indicated with the general rec- oinmendatioiis for lechnical drawings. However, lor the purpose of siniplificalion. it is atlvisable to adopt. for usual joints. the syinholic representation de- scribed in this International Standard.

3.2

The syniholic representation shall give clearly all necessary indications regarding the specific joint to

be

ohlaiiiad wiiliout over-burdening the drawing with notes 01- showing an additional view.

3.3

This syniholic representation includes an elementary symbol which m a y he completed by

-

a siipplemcritary symbol:

--- A meqiis of sliowiiig dimeiisions:

-

sonie cornple nient a ry indications (pa rticu larly for workshop drawings)

3.4

:n order

In

simplify tlie drawings

as

niucti

as

possible

it is

recomnientled lha1 reíerences

be

rnade

to specific instructions

a r

particular specifications givinq all details of tlie preparation of edges to b e

(8)

IS0

2553:1992(E)

welded. brazed a n d soldered aiidlor welding. hraz- ing and soldering proccdirrec. rattier than showing these indicatioris o n the drawings of the welded paris.

If there are no ciich incti-uctioric, tlie diniensioris re- lating to the preparation of the edges to

be

welded. brazed and soldei-ed aiid/or weldirig. brazing and soldering procedures

can

be

close

to i h e symbol.

4 Symbols

4.1 Elementary symbols

The various categories 01 joints a r e characlerized by a symbol which. in general. is similar to the shape of the weld to be made.

No. 1 2 3 4 5 6 7

The symbol shall riot be taken to prejudge the process to be eniploycd

The elenieritary syiiihols are shown i n table 1 If íhe joiiii +Iiould iiot tie spcciíied brit only h e rep- resented that the joint will be welded. brazed or soldered the following symbol shall be tised.

Table 1

-

Elementary

symbols

Designation

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

___ Square butt weld

Single-V butt weld

Single-bevel butt weld

Single-V butt weld with broad root face

Single-bevel butt weld with broad root face

Single-U butt weld (parallel or sloping sides)

-- Illustration - - . - -. - . _.

__

.

. .-

e

V

Y

2

(9)

IS0

2553:1992(E)

-

No. 8 9 10 -

__

l i 12

_ _

13 14 15 Designatioii

Single4 biitt weld

Backing run; hack or backing weld IUSAI

Fillet weld

Plug weld. plug or slot weld /USA/

_____

spot weld

S e a i n weid

~ _ _ _ _ -

Steep-flanked sinqle-V butt weid

.. -. - .- .. ..

__

- -.. - -

Steepflanked sinqle-bevel butt weld

Illiistration ~

6 -

---

-

&

Symbol -____.

W-

n

e

(10)

IS0 2553:1992(E)

1)

welds (symbol 2) with the weld thickness ,Y shown (see tables)

Butt welds between plates with raised edges (symbol 1 ) not compleiely penetrated are symboli7ed as square butt

I

No.

16 17 18 19 20 Designation ~ Edge weld

~ - _ _ _ _ _

~ Surfacing Surface joint Inclined joint ~~ Fold joint ~~ Illustration

a

_/

Symbol

4

(11)

I S 0

25531 992(

E)

4.2 Combinations of elementary symbols

When required. combinations of elementary cyinbolc can be tised

The elementary syt11bols are to be coinhined for

table 2 and applications for symbolic representation

in

lableA.2

NOTE 1 Table2 gives a collection oí combinations of

elementary symbols for symmetrical welds For the sym- hoiic representation tile elenlentary Symbols are arranged from Iioth in a arranging symmetrically at the reference line (see tableA.2). For the

use of symbols out of symbolic representation the symbols may be

the

applicable

elententary symbols syminetrical t o

the reference Iitie. Typical examples are given in without the re,erence line

Table 2

-

Combined symbols for symmetrical welds (examples)

I

Designation Illustration

Double-V butt weld (X weld)

---

---+

I-

-

Double-bevel butt weld

Double-V but! weld with broad root face

i @

~ _ _ _ _ _ _

- _ _ _ _ _ ~ - -

@

Double-bevel butt weld with broad root face

I

Double-U butt weld

Symbol -

__

X

K

x

K

(12)

I S 0 2553:1992(E)

4.3 Supplementary

symbols

Elementary synibolc may be completed by a symbol characterizitiy the shape of the external sui-face

or

the shape of the weld

The recommended supplementary symbols are given i n table 3

The absence of a siippleinentary symbol means that the shape of the weld surface does not need

lo

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 ta a s m i a t e sev- eral symbols. i t is beller to represent the weid

on

a sep- arate sketch when symbolization becomes too difficult.

Table 3

-

supplementary

symbols

Shape of weld surface or weld

--

-

a) Flat (usually finished flush)

b) Coiivex

c) Concave

d) Toes shall be blended smootlily

__ __

--__-

e) Permanent backing strip used

-

__

f) Removable hacking strip used

6

(13)

IS0

2553:1992(E)

Designation

_ _ _

-

Flat (flush) single-\/ butt weld

_ _ _ _ _ _ _ ~

Convex double-V weld

__

Concave fillet weld

__

Flat (flush) single-V butt weld with flat (flush) backing rur

_-_

Single-V butt weld with broad rooi face and hacking run

Table4 gives

exainplcs

of application of the sup-

plementaty symbols.

Table 4

-

Examples of application of supplementary symbols

Flush finished single-V huit weld

Fillet weld with smooth blended face

. . -~

-.

Illwîration

Symbol in accordance with I S 0 1302; initpad of this symhol the main symbol

d-

can be used

I

Symbol

V

n

W

X

¿

'I

V

(14)

I S 0

25531992(E)

5

5.1

General

The symbols covered

by

these riiles form only

part

o f the complete niethod of representation (figure 1). which comprises in addition to the symbol

(3)

¡iself:

Position

of the symbols on

drawings

an arrow line (I) per joint (see figrire:! and figure 3):

a

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

a

certain number of tional signs.

consisting of two parallel and one dashed

(2)

(ex-

dimensions

and

conven-

NOTES

3 The dashed line can be drawn either above or beneath

the continuous I i ne

_ _ _ _ _ _ _ _ _ _ _ .

(see also

5.5 and annex 8).

For symmetrical welds. the dashed line i s unnecessary and should be omitted.

4 The thickness of lines for arrow line. reference line,

symbol and lettering shall be in accordance with the

thickness of line for dimensioning in accordance with I S 0 128 and I S 0 3098-1. respectively.

The purpose o f the following rcrles is to define the location o f 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 refel-ence line form the complete reference mark. II details are given. e.g. for processes. acceptance levels. position. filler a n d auxiliary materiais (see clause 7). a tail shall be added at the end of

the

reference line.

5.2

the joint

Relationship between the arrow

line

and

The examples given i n figure 2 and figure

3

explain the meaning of the terms

- " A r r o w 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. i t would be placed immediately adjacent to the joint.

NOTE 6 See figure 2.

8

(15)

IS0 25531

992(E)

2a

3

Figure

1 -

Method of representation

“Other “AITOW

a) Weidonthesnowside bl WeMontheothcrside

Figure 2

-

T joint with one fillet weld

“‘Other

*

“Arrow side

“ A r m side

of joint 8” of j0irit E“

ai

Figure 3

-

Cruciform joint

”Orner cjde “Arrow side

h)

with two fillet welds

(16)

IS0 2553:1992(E)

5.3 Position

of t h e

arrow line

The position of lhe arrow line with i-espect lo the weid i s generally of no special cigiiificance [see figures 4 a) and 4 b)]. However. in the case of welds

of

types 4, fi and 8 (see table i). the arrow line shall point towards the plate which is prepared [see figures 4 c ) and

4 d ) J .

The arrow line

- joins one end of lhe continuous reference line such Ihat it forms an angle with it:

-

shall be completed

by

an arrow head

5.4

P o s i t i o n

of the

r e f e r e n c e l i n e

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

ai

b l

Cl

d)

Figure 4

-

Position of

the

arrow line

10

(17)

IS0

2553:1992(E)

5.5

r e f e r e n c e l i n e

The symbol is to be placed either above

or

beneath the i-efererice line. in accordance with tlie lollowing regulation.

- The symbol is placed on tlie continuous line side of the reference line ií the weld (weld lace) i s on the arrow side oí ihe joint [see figure

5

a)].

P o s i t i o n of the

symbol

with r e g a r d

to

the

--

The

symbol is

placed o n l h e 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 oí spot welds made by projection welding. the projeclion surface i s to be considered as the external surface of the weld.

bl Tobewelded on the other a d s

Figure

5 - Position of the symbol according to the reference line

(18)

I S 0

2553:1992(E)

6 Dimensioning

of

welds

6.1

General

rules

Each weld synibol may be accompanied by a certain n i m b e r of dimensions

These dimensions are written as follows, in accordance with figure 6:

a) lhe main dimensions relative to the cross-section are written o n the left-hand side of (¡.e. hefore) the symbol;

b) longitudinal dimensions a r e written on the right- hand side of (¡.e. after) l h e symbol.

The nielhod of indicating the main dimensions is

defined i n tables. The rules for setting down these dimensions are also given i n this table.

Figure 6

-

Examples of the principle

Other dirneiisions of less importance may be indicated i f necessary.

6.2 Main dimensions

to

b e

shown

The dimension that locales the weld i n relation to the edge of the sheet shall not appear in the symbolization but on the drawing.

6.2.1 The absence of any indication following the

symbol signiíies that lhe weld i s 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 lhe fillet welds there are two metliods to

indicate dimensions (see figure 7) Therefore. the letters u or z shall always be placed i n front oí the value of the corresponding dimension as follows:

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

6.2.4 In the case of plug or slot welds with bevelled

edges. it is lhe dimension at the bottom of the hole which shall be taken into consideration

Figure 7

-

Methods of indicating dimensions

for

fillet

welds

12

(19)

I S 0

25531

992(E)

NOTE - For deep penetration of fillet welds. the dimensions are indicated as .da6 h, for example.

Figure 8

-

Methods

of

indicating dimensions for deep penetration of fillet welds

(20)

IS0 2553:1992(E)

Table 5

-

Main dimensions

Designation of welds

But1 weld

Butt weld between plates with

raised edges

Continuous fillet weld

__

Inierrnit!eiit fillet weld

Illustration

1

14

(21)

IS0

25531

992(E)

Definition

s : niiiiiinum distance from the surface of the part to the bottom of the

penetration. which cannot be greater than the thickness of the thinner part.

.< : minimum distance from the external surface of the weld to tile bottom oí the penetration.

0 heiglil of the largest isosceles triangle that can

be

inscribed in the section

side of the largest isosceles triangle that can he inscribed in the section.

I rc)

n number of weld element5

length of weld (without end craters). distance between adjacent weld elements

(see

No.

3) L . Inscription

V

(see 6.2.1 and 6.2.2)

S

II

(see 6.2.1)

f

Y

(see 6.2.1)

s

II

[see 6.2.1 and footnote 1) to table11

a

n

2 n

(see 6.2.1 and 6.2.3)

a

n

n x l k l

z

n

n 4 e )

(see

6.2.3)

(22)

IS0

2553:1992(E)

Table 5

-

Main dimensions (concluded)

Designation of welds

Staggered intermitlenl fillet weld

__

__-

Pliig or clot weld

Seam weld -. Plua weld Spot weld ~~ Illustration

‘e)

16

(23)

IS0

2553:1992(E)

Definition I l : \ (see No. 3) z : c : (see No 4 ) width of slot r (see No 4) width of weld I7 y (see No. 4 ) ( P ) : spacing d : diameter of spot

--

Inscription (see

6.2.3)

(24)

IS0

2553:1992(E)

7 Complementary indications

Complementary indications may be necessaiy 111

o r d e r to speciíy some other characteristics of welds For example

7.1

Peripheral welds

When

the

weld is to be ninde all around a part, the symbol i s a circle, as shown in figure9

Figure 9

-

Indication of peripheral weld

7.2 Field

or site welds

A flag i s to be tised lo indicate the field o r site weld. as shown in figure Ill.

Figure 10

-

Indication of field or cite weld

7.3

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

Indication of the welding process

fork. at the end of lhe leference line remote írom the reference line.

Figure Il gives an example of its use

The list giving tlie correspondance between the numbers and the process is given in

IS0

4063.

Figure 11

-

Indication of welding process

7.4

reference mark

Sequence

of

information in the tail

of

the

The information for joints and the dimensions can be supplemented by fui-ther information i n 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 I S 0 fi947):

- filler materials (e g in accordance with

IS0

544. I S 0

2560.

IS0 3581)

The individual itenis are to he separated by / (solidus),

In addition.

a

closed tail is possible which indicates Specific inslructioii

í e . g .

procedure sheet) by a reference sign, see figure 12.

Figure 12

-

Reference information

18

(25)

I S 0 2553:1992(

E)

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

6917. covered electrode

IS0

2560-E 51 2

R R

22.

Hlustration

/

8 seam joints

Examples

for

application of spot

and

In

the case of seam and spot joints (welded, brazed or soldered). joints are niade at the interface between the two lapped parts or by melt-through of o n e of the two paris (see figures 14 and 15).

Symbolic representation Front view

11111SO 5B17-DI

IS0 ï5ül-E 51 2

RR

P

Top view

Figure 13

-

Single4 butt weid with backing run

I ,

__

-

----

-- -.-

y--- --

I

J

I I I

1

Tog view

(26)

IS0

2553:1992(€)

al Re?iStancespotwelds Ilustration Front view Symbolic regrewrit.tlon bl Fusiorr-weMedspotwdds SymboYc reprsraitation

Figure 15

-

Spot welds

20

(27)

(28)

IS0

2553:1992(

E)

Annex

A

(informative)

Examples

of

use

of

symbols

Tables

A 1 to A 4

give soriie

examples oí the u r e

oí

symbols. The

represantaiioiis

shown are given simply for explanation

Table A . l

-

Examples of the use of elementary symbols

-

No. i 2 3 4

-

Designation Syinbol (Numbers refer to table 1)

Butt weld be-

tween plates with raised edges

Square biitt weld

I!

2

Illustration

U

epresentation

22

(29)

I S 0

25531 992(E)

Symbolization

____

either or

(30)

I S 0 2553:1992(E)

Table A . l

_-

-

Examdes

of

the use of elementary symbols (continued)

No.

-

5 6

-

7 8

--

9 Desigiiatioii Symbol (Numbers refer to table 1) Single-V butt weld

V

3

Single-bevel butt weld

V

4

Illustration Representation 24

(31)

I S 0 25531992(E)

-

Symbolization

e¡ ther

(32)

I S 0 25531 992(E)

Table A.1

-

Examples of the use of elementary symbols (continued)

Designation Symbol (Numbers refer to table 1) Single-bevel butt weid

4

Single-V butt weld with broad

root face

5

Single-bevel butt weld with broad

root face

Y

6

Single-U butt weld

Y

7

Illustratiori ~ ~~~ Representation

+-a-

_-=-&-

I

HJ

26

(33)

I S 0

2553:1992( E)

Syinboliration

(34)

IS0

2553:1992(

E)

Table A . l - Examples of the use of

elementary

r

No.

-

15 16 17 18

-

Designation Symbol (Numbers refer to table 1) Single-J butt weld

8

Fillet weld

n

10

Illustration

nbols

(continued)

Representation

....;1

ii,

(35)

I S 0

2553:1992(

E)

r-

Symbolization

- ___

either

(36)

I S 0

25531

992(E)

Table A . l

-

Examples of the use of elementary symbols (continued)

Designation Symbol (Numbers refer to table 1) Fillet weld

n

10

Illustration Representation 30

(37)

I S 0 2553:1992(E)

either

__

--- -.

(38)

I S 0 25531992(E)

-

No.

-

22

-

23

-

24 25 I

Table A . l

-

Examdes of the use of elementary symbols (conlirwed)

Designation Symbol (Numbers refer to table 1) Plug weld

n

11

Spot weld

O

12

Illustration Representation

32

(39)

I S 0

25531992(E)

Symbolization

I

_._ either

,-

P==

(40)

I S 0

2553:1992(E)

Table A . l

_-

-

Examples of the use of elementary :

No. 26 27

-

Designation Symbol (Numbers refer to table 1) Seam weld

#

13

Illustration nbols (coricliided) Representation

34

(41)

IS0 2553:1992(E)

Symbolization

(42)

I S 0

2553:1992(E)

No. 1 2 3

-

4

-

5

-

Table A.2

-

Examples of combinations of elementary svmbols Designation

Symbol (Numbers refer to

table 1)

Butt weld between plates with raised

edges

1

and backing run

w

9 1-9

-

__

Square hutî weld

II

2

welded from both sides

2 - 2

Single-V hiitt weld

v

3

and backing run

U 9

3-9

Double-V butt weld

v

3

(X weld)

3-3

Illustration

- -

Representation .-

36

(43)

IS0

25531992(E)

I

Symbolization either

t - - -

i

or

(44)

IS0

25531992(E)

Table A.2

_-

-

Examples of combinations of elementary symbols (continued)

No.

-

6 7 8 9 10 Designation Symbol (Numbers refer to table 1)

Double bevel butt weld

v

4

(K weld)

4-4

Double V butt weid

with broad root face

5 s

Double bevel butt weld with broad root face

6 -

6

Double U butt weld

Y7

1 - 7

Iliiisîration

Representation

38

(45)

IS0

2553:1992(E)

Symbolization

either or

(46)

I S 0 2553: 1 992( E)

Table A.2

_-

-

Exarndes of combinations of elernentan

No.

-

i l 12

--

13 14 Designation Syiiibol (Nuiribers reler to table 1)

Double J butt weld

8 - 8

Single V butt weld

v

3

and single U butt weld

Y7

3 - 7

Fillet weld

and fillet weld

n

10 10-10

illustration iymbols

(concluded)

Representation 40

(47)

I S 0

25531992(E)

r---

Symbolization

I

either

LEI

or

(48)

I S 0

2553:1992(E)

Table A.3

-

Examples of combinations of element;

Symbol Illustration

and supplementary symbols

Representation

42

(49)

IS0

25531992(E)

S yinbolization e¡ t her

AL

t

i

--

or -L 1 I

I

(50)

IS0

25531992(E)

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

Symbol

V

IMRI

Iliiistratioii Representation I I 44

(51)

I S 0

25531992(E)

Symbolization

_____

either

-

__

.

__

or

(52)

I S 0

25531992(E)

No. 1 2

_-

3 4 5

-

Table A.4

-

Examples of exceptional cases

Illustration

Representation

+-++

-4

-

46

(53)

IS0 2553:1992(E)

Syin bolkation

or incorrect

(54)

I S 0

2553:1992(E)

Table A.4

-

Examples of exceptional cases

(com:luded)

Illustration

Representation

I

48

(55)

IS0

2553:1992(E)

either not recommended iiot ri?conimended

1

\ Symbolization

__

-

._ ._ incorrect

(56)

IS0

2553:í

992(E)

Annex

B

(informative)

Guidance for converting drawings made in accordance with

IS0

2553:1974 into the

new

system in accordance with

I S 0

2553:1991

As

an interim solution for converting old drawings made in accordance with IC0 2553:1974. Welds -- Symbolic

fepfesentafion on drawings, the following eXampleS show acceptable methods This shall. however, be con-

sidered as

a

provisional solution only during the change-over period

For

new drawings, the dual-reference line

___________.

shall always be used

J

Ø

Figure 8.1

-

Weid on arrow side

z?h300

7-

/

Figure 8.2

-

Weid on other side

NOTE 8 When converting drawings made to one of the methods E or A in I S 0 2553:1974 into this new system. it is es-

pecially iinportant for fillet welds io add the letter n or z in front of that dimension as the I J S ~ of dimensioning leg length (2) o r tliroat thickness (al has been connected with the position of weld symbol on the reference line

(57)

Page 53

EN 22553 : 1994

welding Symbol

Welded, brazed and soldered joints

(IS0 2553

:

1992)

of

22553

-

-

DIN

EN 22553

-

22553:

of

-

-

-

-

-

-

-

-

-

-

-

r

-

-

-

-

-

EUROPEAN CTANDARD

NORME

EUROPÉENNE

EUROPAISCHE NORM

EN 22553

English version

Welded, brazed and soldered joints

Symbolic

representation on drawings

(IS0

2553

:

1992)

-

-

(EN

de

-

-

ZA

I S 0

2553:1992(E)

Contents

Paar?

3

arrow

the

7.3

of

tail

wain

I S 0 2553:1992(E)

Examples

t h e

in

1

Scope

IS0

IS0

-

2

Normative references

IS0

lie

s

a

to

the

IS0

_/