IS0 2553:1992(E)
Contents scope
2
Normative
3
General
. .._. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..-....... . . . . . . . . . . . . . . . . . . . ..-.......
4
Symbols
. . . . . . ..-...................................
references
4.1
Elementary
4.2
Combinations
4.3
Supplementary
5
Position
..,..............._............
of elementary
on drawings
. . . . . . .._.....................
5.2
Relationship
between
5.3
Position
of Ihe arrow
5.4
Position
of the reference
5.5
Position
of t.he symbol
General
6.2
Main
7
.......................
.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
line and the joint
with
regard
.,.
11
. . . . . . . . . . . . .. . . . .. . . .. . . .
12
to the reference
. . . . . . . . . . . . ..-v...................
line
. . . . . . . . . . . . . . . . .._........_... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
rules
dimensions
. . . . .._.......................................
to be shown
welds
18
. . . . . . . . . . . . . . . . . . . . ..-..............................................
18
.,..................._......,...,.................................
18
7.2
Field or site welds
7.3
Indication
of the welding
process
7.4
Sequence
of information
in the tail of the reference
for applicalion
‘12
. . . . .._..............................................
indications
Peripheral
Examples
IO 10
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..-...........
line
8
. . . . . . . . . .. . . . . 8
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..-..
line
7.1
8
2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .._. 5
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..--..................
the arrow
L of welds
Complementary
1
. . ,........... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
General
6.1
1
2
. . . . . . ..-.......s.........................
symbols
symbols
of the symbols
Dimensioniny
. . . . . . . . . . . . . . . . . .._....................
..........................................
symbols
5.1
6
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .._..
of spot and seam
joints
0 is0 1992 All rights reserved. No part of this publication may be reproduced or by any means, electronic or mechanical. including ptdcscr>pyirq permission in w1 iti ng from the publisher. International Organization for Stalldardization Case Postale 56 l CH-1211 Genkve 20 l Switzerland Printed in Switzerland
ii
1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..,.I......................-..
1
18
mark
18
.. .... .. ........ .
19
or utilized in my fat m and microfilm, withoul
IS0 2553:1992(E)
Annexes ,A
Examples
of use of symbols
B
Guidance 2553:1974 2557-1991 L.
for converting drawings made in accordance with IS0 into the new system in accordance with IS0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
. . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . .
22
... III
IS0 25533 992(E)
Foreword IS0 (the International Organization for Standardization) is a worldwide federation of national standards bodies (IS0 member bodies). The work of preparing International Standards is normally carried out through IS0 technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. IS0 collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard IS0 2553 was prepared by Technical ISO/TC 44, Weldir)g and alliecJ processes, Sub-Committee resentatior-, and terms. This third 2553:1984), t1987. Annexes
edition cancels and replaces the second which has been technically revised to include A and R of this International
Standard
Committee SC 7, Repedition (IS0 IS0 2553/DAD
are for information
only.
INTERNATIONAL
IS0 2553:1992(E)
STANDARD
Welded, brazed and soldered representation on drawings
I
joints
-
Symbolic
reference numbers &a wir7q.s. L
Scope
This International Standard prescribes the rules be applied for the symbolic representation welded, brazed and soldered joints on drawings.
to of
for
symbolic
representation
IS0 5817:1992, Arc-welded joints in sfeel - Guidance on qualify levels for imperfec tious. IS0 6947: 1990, Welds .--- Working positions nitions of angles of slope and roiation.
2
Normative
on
--- Deli-
references IS0 8167:1989,
The followinq standards contain provisions which, through refekence in this text, constitute provisions of this International Standard. At the time of publication, the edii.ions indicated were valid. All standwds are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent edit.ions of the standards indicated below. Members of IEC and IS0 maintain registers of currently valid International Standards. IS0 128: 1982, Technical ciples of presentation. IS0 544: 1989, Filler Size requirements.
drawirlgs
materials
--- Genera/
for manual
weldinq L -
IS0 1302: 1978, 7‘ecl1nical drawings -- Meihod dicatinq ._ surface texture on draw&p. .. IS0 2560: 1973, Covered electrodes welding of mild steel and low alloy symbols for identification. IS0 3098-1: 1974, Technical drawings Part I: Currer? tly used characters.
prin-
of in-
for manual arc steel -- Code of
-...- Lelfel-ing
---
IS0 4063: 1990, Welding, brazing, solderiuq a& of pr&esses welding of melals ._- Nomer,claiur-c -----.-.---I.-1) To k~e publisk.
h-aze and
for resistance
welding.
IS0 10042: -----l?Arc-welded joints in alurninium and its weldable alldys --- Guidance on quality levels for imperfecfions.
3
General
3.1 Joints rnay be indicated with the general recommendations for technical drawings. However, for the purpose of simplification, it is advisable to adopt, for usual joints, the symbolic representation described in this International Standard.
3.2
The symbolic representation shall give clearly all necess&y 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 sr.ippIementary
--- a means -
IS0 3581: 1976, Covered electrodes for manual arc welding of stainless arld oiler similar high alloy for ider,tification. SffXlS - Code of symhIs
Projections
3.4
symbol;
of showing
dimetlsions:
some c:omplernentary worl))H)m>)) --mm 1
----
IS0 2553:1992(E)
Symbolization
--
------
----_-.--__-.---_----_____ either
-__---_--_--__.--_-~----__ or
25
IS0 2553:1992(E)
Table
A.1 -
Examples
of the use of elementary
symbols
(cordhued) --P-P
-I_--
Representation
No.
Designation Symbol (Numbers refer to table 1)
Illustration
-+ a-.---. -... -E3& .-----_ .I
--
Single-bevel weld
butt
q-e-
10
-----.-
Single-V butt weld with broad root face
II
Y 5
12 Single-bevel butt weld with broad root face --
-------_______
Y 6 13
---Single-U butt weld 14
26
Y
7
------____
IS0 2553:1992(E)
Symbolization
either
-lt/ H H L _II~____--__--_---_ .----.---------H m r -F -~---------------_---___----H B -k -_----__-_--...------. -------__ --.-----.. _----_----------_-.-m a ------.-._I__---~___---__ -m-r pi -r e-e-
d-
Y-m
r
27
IS0 2553:1992(E)
Table
A.1 -
Examples
of the use of elementary
symbols
(co~Mwed) Representation
NO.
Designation Sy-lnbol (Numbers refer to table 1)
Illustration -.--
-
-
-
f-3
-+
)H)>))HH -~---..-----_. -.------..-.. --_---m-m
15 Single-J butt weld
v 8 16
--
17 Fillet
.---
weld
-------.
CL
t-
--mm--._--
-----s-e_-.-
-----
------_----~-_--_---~~--__--.-._ - .-----_----.-----.-_I__
10 18
28
;j
~~~~,~
IS0 2553:1992(E)
---se--
----p-
a-.---
Symbolization
ei her
or
m-e-
!“1 H r -- ----_-_-~---_--.------~---_._ --___---Y -h H H k k -~---.~--___._----_------~ --_^--------Hi I,--I ___I ---.---------------.-----_-----._____________ ____-.e--w
‘.
\
k
/ I7 k k
n-
29
IS0 2553:1992(E)
Table
A.1 -
Examples
of the use of elementary
symbds
(corMw&) --P----w--
Representation
No.
Designation Symbol (Numbers refer to table 1)
Illustration
19
--
I Fillet
weld
20
&
n ---
10
JHl)>)))>>w); 21
JJJJJJJJ1~)JJJJ: -------
30
E
‘.I
IS0 2553:1992(E)
Symbolization
either
or
---h ----
:
-m--
----
t
---
---.--II---------v---
31
IS0 2553:1992(E)
Table
A.1 -
Examples
of the use of elementary
symbols
(contirwed)
Representation
No.
Designation Symbol (Numbers refer to table 1)
Illustration
..~__----------I_----
--22
+3-b--I -----,
Phry weld
I b
i--l
23
----
.-.----
--I-----
-.-.
----.---
--------.
---__-------~-
.
-mm---
24 -b--+
Spot weld 1
I
-m---l
0
--
.-------~
--
b
--.-----.--------.---_.--.-.- .--.--. -___-___ ---. - _._--.-_--------.-.--
12 a -m---B
25 ::
-4-k--
L ------
---p
---e----II-
32
..---
IS0 2553:1992(E)
Sytnbolizatim
either
or
I
-
\ ,
\
‘.
’
-
,
,
-----m
\
__ ..-.-
-----
---
. . ..-
_..____
____
--.--.
~__--_--
.
1 .-
-.__--------.---------
--
me
-m-
-------------
-..---.------.-----------_-------__--_
---^--.---------__--
33
IS0 2553:1992(E)
Table
A.1 -
Examples
of the use of elementary
symbols
(cowluded) Representation
No.
Designation Sytnbol (Numbers refer to table I)
Illustration
--
26
Seam
weld
13 -mm---
27
y~~r*Y~f*r*Yvt’Y+y’ .LA*A.A~A*l*lbl*l.,
, -m--v-
34
IS0 2553:1992(E)
Symbolization
either
-----E
or
,
I
v----m .
I
-
---e-
35
IS0 2553:1992(E)
Table
A.2 -
Examples
of combinations
of elementary
symbols
Representation
No.
Designation Symbol (Numbers refer table 1)
Illustration
to
-+
- cll .--..-. - -“____I__
.- t-)-. ---.---.--- @ii%1 ---------___I
.-.
Butt weld between plates with raised edges
1 and backing
run
w9 1-9 .--_-.
----_- -.-___-- -------------.Square
_--.
---^
-
_.-__--
--__--._-
---.-
I
. ..--.
-
. . . . . ..-
---
-~-.~-~~.--.__--.--___--~-______
----
butt weld
Ii 2.
2
HH)))H))H
welded
from
both sides v--
~
2 2 ‘.
-- ...-.---.
3
----s-.-m------
Single-V
-_----
-
-----
----.---
---_.-..----.-------
-----
butt weld
-.
--_
.-.-.
.-
.-.---
._-___
.-_--__---------__
))H)H)H>>
---
i
--
-------------..--_I----I.--.------.--------.---------
and backing
run
u9 4
3-9
------------.----.__-_
--
Double-V
5
-.-.-
-____----------
--..--_
-----.I-..--
-
.^--
-I_....______
-
_.__^______^
butt weld
v3
)H))HH>>))
(X welcl)
---
3 3
~
L.
---.--m-.-------
36
-*I-m.---.--“-----
-__-__I~---
-____
IS0 2553:1992(E)
Symbolization
either
-----_
wmm -----w-----m.-------
I /’
,’
,’
‘\
\
\
\
‘L
.t\
-
37
IS0 2553:1992(E)
Table
A.2 -
Examples
of combinations
of elementary
symbols
(confined) -_I-
---
--
Representation Designation Symbol (Numbers refer table 1)
No.
. -.--” “-. ” ----*a ad% + I
Illustration
to
))N)))))>))~
6 Double
---
bewel butt weld
~
V4 (K weld)
4-4 7
H))Ul)))H)
-
m--
1
----------------
--
-------------
Double V butt weld with broad root face
YS
8
5-5 --
---------e--e-
-----------------
Double bevel butt weld with broad root face
-
// H>)))))> --\* \ .’ q a ~------“---“--“.“.. -.----.------------~“--~~~~-~-~“-~-~“~~~~~~--.--“-.”I~
--.-.--
G-6 --
----“--I-”
Double
10
-.-----
“““_
~~~~~~-~~~_“-.-“.---_._-.-_-_“_
------_I
U butt weld
Y7
)))>))Hm)
mm-
7-7
3
--
38
.-----
I))))))))))>) ---7
Y6
9
--.-““--------
-----------
--w-v
IS0 2553:1992(E)
Symbolization -_^___I____
---
--..
e-m-_-----
_.________II__.-_
---
I--_
_ --,_-_
-.----
either ----
or -----
-
-
-a q -----------.-------------_.~~----___-
.-
e--
”
‘E
----
-------we-.
-_------
____
_ -_______-..-.I_-
----_--.-.-.._-.___-
..--
---
.___---
-.__--_----
-I-.
-
---.---
P---._._
-------------
‘\
-
---_--
-_--------.--.
~__---_-___--
e---.-m--
----1____--
,
-
$. \ .\
39
IS0 2553:1992(E)
Table
A.2 -
Examples
of combinations -- of elementary
symbols
(concluded) --B-e
---m. Representation
No.
Designation Symbol (Numbers refer table 1)
Double
.~xib ----- I
Illustration
to
J butt weld
Y8
11
8-8 --
Single
V butt weld
v3 12
and single
U butt weld
Y7 3-7 _--
13
---.------_-_--..-.---
Fillet
weld I )H)H)))lHH)1 v
and fillet
--
14
40
weld
n 10 90-10
IS0 2553:1992(E)
---
-w--e--
---.--
__I--
-.w--
1
Symbolization
either
-H
or
\.~ ’ ~ \ ‘ “’ TX* ,‘ . ‘ ’ \ .w\ \.l ‘
41
IS0 2553:1992(E)
Table
A.3 -- Examples
of combinations
of elementary
and supplementary
symbols
Representation
No.
Symbol
Illustration --
- a
- --
I_ -
-
._--
-
--
a& I
--
a--------
1
2
---
>>>)>) n-))H>>) q---
3
_-_-_- _
--_l_------.-------
..----
--------.-
-.-.
7
,i
4
Niii)H))i~)
----e-w
/ L
---.-_-_---.-
5
42
--___
-----_-_
__-_______
)UV)) 1 H>))> 0---
IS0 2553:1992(E)
Symbolization
either
m m _- -------I_-mp----m m ----_-----_ ~-----------------.~.LL&
43
IS0 2553:1992(E)
Table A.3 - Examples
of combinations
of elementary
and supplementary
symbols
(comluded)
Representation
No.
Symbol
Illustration
--
----
---
H)HH))H) ---E
6
-----~-
-_---
7
LL
8
V lMRl
--------_..
-----
N))>)>)))>)
-m-v
i
---I_--
44
_---------
IS0 2553:1992(E)
Symbolization
-_------.-----.---.-.-------------.-___
either
or
-----
.-.----------.-.-------.------.-.----------___---.----
-___---_-..
--------.-..------.--.-.-.---..----------^.---------_I_---_--
J+
J*
I_-------
45
IS0 2553:1992(E)
Table
No.
A.4 -
Examples
of exceptional
cases
Illustration
-.a------
1
-+-+-
__------
E
.--
.
2
3
_----
4
--
5
--
46
L
IS0 2553:1992(E)
Sytnbolizatiou ---em----.-_-
either
b ------me
t
or
._.______-
-_----~
------
incorrect
-I
1 _.----
_.-____.----
F---.--------~
-e----------T
.--.---.
--.--
---_-----------.----
D--e
---
----
-
--q---.-----_I__
--.----
__---..---------.-
not recommended
47
IS0 2553:1992(E)
Table
A.4 -
Examples
of exceptional
cases
(concluded) Representation
No.
- - ---.
[email protected]
Illustration
6
-----
----_--.--.---------------------.--------
.-.--.
7
L q
--____-----
----
--.---.-.--
.---
L
.-
.-------.--w-e-
-
----
8
--NOTE 1
48
When the arrow ------I_---------
cannot
point
to a joint,
symbolization
------.-_----
.-.---.--
-----
cannot be used. _----.-*..I__---.---I_-,--.-.----------
.---.
-
-.--.-
-__-
--._.--
---._----_
----
---.-
_-.---
-.~.-_-.-___-.-_-
IS0 2553:1992(E)
~-
----~-------.~-~-----------
--I_.-
.m-e-_-----
-
---.----
-
Symbolization
either
or
incorrect
not recommended
not recommended
49
IS0 2553:1992(E)
Annex B (informative) Guidance
for converting drawings made in accordance with IS0 2553:1974 new system in accordance with IS0 2553:1991
As an interim sotution for convertinq old drawings made in accordance representafiol, OII) dl-awings, the foliowing examptes show acceptable sidered as a provisionat solution only during the change-over period. For new drawings,
the duat-reference
tine
-N-N----W---
shalt
always
with IS0 255X1974, methods. This shatt,
into the
Welds --- Symbolic however, be con-
be used.
Figure
B.1 -
Weld on arrow
side
Figure
8.2 -
Weld on other
side
NOTE 8 When converting drawings made to one of the methods E or A in IS0 2553:1974 into this new system, it is especially important for fillet welds to add the letter /x. 01 z in front of that dimension as the use of dimensioning leg length (z) or throat thickness (n) with the position of weld symbol on the reference line. \ has been connected
50
This page intentionally
left blank
IS0 2553:1992(E)
ll____l
--.-
-
.._-_e___I
--
-
_-________.____-_____l______l_._l___.______.
----e--p
yp______--_ ________________II___
._.-
-..
-.-..-..
-.--.-_
------.--.
-.
-sm.-.-
-
1---.
“.
-____ .--
--..-..
--
---.--Pm - .--...
-.-.
-
-L.-
--..--.
----I-
.--.---.
-_-
_-.
. _.-----.-.-
UDC 621.791:744.44:003.62 Descriptors:
drawings,
techical
drawings,
welded joints,
brazed and soldered joints,
symbols,
graphic symbols.
Price based on 50 pages -------VP .-----------------__ -.-.._.-. .____ ___ ____ ----_._-.-- -I--. _-_-----.--- --- ---_--.. - ----- I._-_I_____...----. - _....____ . --... ..- --”- .--. .. -._... .-._.-. _--__.____-.._.-------.--*- ----. -.-.-..---_-“--- -----. --. _--....-.- - ._.-_---__..
