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7/23/2019 EN 1043-2~Micro Hardness Test
1/13
STD-BSI
S EN 1 0 4 3 - 2 -E N G L 1 9 9 7
L b 2 4 b b 9
O b b 1 4 0 42b
BRITISH STANDARD
Destructive
tests
on
welds
in
metallic
materials
Hardness
test
Part 2. Micro hardness testing on welded
joints
it
The European
Standard
EN 1043-2 :
1996
has the statusof a
British Standard
ICs 25.160.40
BS
EN
1043-2
:
1997
NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGEPT LAW
pyright European Committee for Standardizationovided by IHS under license with CEN Licensee=tetra pak/5944566001
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~
~~ ~
STD-BSI
S E N
L043-2-ENGL
1777 L b 2 g b b 7 O b O b 1 4 1 3 b 2
BS
EN 1043-2
:
1997
Committees responsible for this
British Standard
The preparation of thi s British Standard was entrusted
to
Technical Committee
WEE2,
upon which the following bodies were represented
Aluminium
Federation
Association of Consulting Scientists
British Constructional Steelwork Association Ltd.
British Iron and Steel Producers Association
ElectriciS. Association
Health and Safety Executive
Institutionof Structural Engineers
Lloyds Register of Shipping
Ministry
of Defence
Power Generation ContractorsAssociation
(PGCA) (BEAMA
Ltd.)
Welding Institute
Welding ManufacturersAssociation
(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
15April 1997
O BSI 1997
Amendments is sued since publication
Amd. No. Date
Te*
affected
The followingBSI references
relate
to
the
work
on this
standard
Committee reference WEE2
Draft for comment
93/705235DC
ISBN O
68 27004 1
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BS EN 1043 2 :
1997
Contents
page
Committees
responsible Inside
front cover
National foreword
11
Foreword 2
Text of EN 1 432
3
i
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-
STD-BSI B S EN 10V3-2-ENGL 1777 1 b 2 4 b b 9 O h O b 1 4 3 135
BS EN
1043-2
1997
National foreword
This
British Standard has been prepared by Technical Committee WEW2 and
is
the
Enghsh language version of EN 1043-2
Destructive
tests
on
welds in metallic materials
ardness test
Part
:Micro hardness testing on we ldedjoints
published by the
European Committee for Standardization (CEN).
EN 1043-2 was produced
as a
result
of
international discussions
in
which the United
Kingdom took an active part.
BS EN
1043-2 :
1996 supersedes
tests
detailed in BS 709
:
1983, which have been
deleted by amendment.
Cross-reference
Publication referred to
EN 1043-1: 1996
Corresponding British
Standard
BS EN 1043Destructive
tests
on welds in metall2c
materials
ardness testing
Part 1
:
1996
Hardness tests on arc welded joi nts
Compliance with a British Standard does not of itself confer immunity
from legal obligations.
Summary of pages
This
document comprises
a
front cover, an inside front cover, pages i and
ii
the EN
titie page, pages
2 to 8,
an
nside back cover and
a
back cover.
ii O BSI
1997
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STD-BSI S EN
10LI3-2-ENGL
1997
L b 2 4 b b 9 O b O b l q q
071
EUROPEAN STANDARD
EN 1043-2
NORME EUROP&NNE
E U R O P ~ C H E
OFDI
October 1996
~~ ~
ICs
25.160.40
Descriptors:
Welding,
arc welding,
welded
joints, metals, destructive
tests,
hardness tests, microhardness tests
English version
Destructive
tests on
welds
in
metallic
materials ardness
test
Part 2 Micro hardness testi ng on welded
joints
Essais
destructifs des so u d m
sur matriaux
mtalliques
ssai de duret
Partie
2: Essai
de micro dureti5 des assemblages
souds
Zerstrende
Prfung
an Schweii3verbindungen
an
metallischen Werkstoffen
rt~prufung
Teil 2: Mikrohrteprfung
an
Schweii3verbindungen
This European Standard was approved by CEN on 199645-23. CEN members are
bound to comply wi th the CENKENELEC Internal Regulations which
stipulate
the
conditions for
giving
thi s European Standard the status of
a
national standard
without
any
alteration.
Up-to-date
l sts
and bibliographical 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 o wn language and notified
to
the CEN Central Secretariat
has
the same
status as
the official versions.
CEN members are the national standards bodies of Austria, Belgium, Denmark,
Finand, France,
Germany,
Greece, Iceland, Ireland,
Italy,
Luxembourg, Netherlands,
Norwax Portugal, Spain, Sweden, Switzerland and United Kingdom.
European Committee for Standardization
Comit Europen de Normalisation
EuropischesKomitee fur Normung
Centrd Secretariat:rue de
Stassart
36 B-1060 Brussels
O
1996 Copyright reserved to CEN members
Ref. No. EN 1043-2
:
1996 E
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STDmBSI
S
E N L U 9 3 - Z - E N G L 1777
M 1b24bb9 bb145 T O
m
Page 2
EN 1043-2 1996
Foreword
This European Standard has been prepared by
Technical Committee CENlrC
121,
Welding, of which
the secretariat
is
held by DS.
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 April 1997, and
conflicting national
standards
shall be withrawn
at
the latest by April 1997.
According to the CENKENELEC Internal Regulations,
the national standards organizations of the following
countries are bound
to
implement
thi s
European
standard:
Austria,
Belgium, Denmark, Finland, France,
Germaaiy, Greece, Iceland, Ireland,
Italy,
Luxembourg,
Netherlands, Norway, Portugal, Spain, Switzerland and
the United Kingdom.
Contents
Foreword
1
Scope
2
Normative references
3
principle
4
Denominations and symbols
Preparation
of
test specimens
6
Testprocedure
6.1
Rows
of
indentations R)
6.2
Individual indentations
E)
7
Test results
8
Test report
Annexes
A
B
(informative)
ardness
testing
R)
on
(informative)
Hardness
testing
E)
on
welded joints
8
welded joints
9
Page
2
3
3
3
3
3
3
3
4
4
4
O
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1997
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1 scope
This standard specifies micro hardness
tests
on
transverse sections of welded joints of metallic
materials with high hardness gmhents. It covers
Vickers hardness
tests
in accordance with IS0 DIS
6507-1, normally with
test
loads of
0,98N
to less than
49
N (HV0,l to less than HV5).
Testing
should be carried out
to
ensure that the highest
and/or the lowest level of hardness of both parent
metal (in the case of dissimilarparent metals) and
weld metal
are
determined.
The type and extent of testing shall be as specified by
an appication standard or by agreement between the
contracting parties.
This
standard
does not cover the
hardness
est
as
described in EN 1043-1.
2
Normative references
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.
rn
le
EN 10431 Destructive test
o n welds
in
metak materials ardness
testing
Part 1:Hardness test on arc
w@d joints
ISO/DIS 6507-1 : Metak matem k m
1995 hardness test
Part 1:Test
method
3
Principle
Micro hardness testing shall be carried out in
accordance with ISODIS aO7-1.
The micro hardness tests may be ed out in the
form of rows of indentations
R),
or as individual
indentations
E).
When types of weld are not shown in the examples,
the test procedure shall be appropriate to the welded
joint.
Unless otherwise specified, the test shall be carried out
at ambient temperature 23 5) C.
Page 3
EN
1043 2
:1996
4 Denominations and symbols
The denominations and symbols
to
be used
are
specified
in
table 1and represented in figures
1 o
3.
Table
1.
Denominations and symbols
Symbol
E
R
Hv
L
H
t
i The
unit
Designation
~~
Individual indentation
Row of indentation
Vickers
hardness
Distance between the centrepoint
of
the indentations in heat
affected zone
Distance of rows of indentations
from the reference line (surface 1
fusion line)
Thickness of test mecimen
Unit
1
mm
mm
mm
. ymbolization for Vickers hardness s given in
ISO/DIS
6507-1.
5 Preparation
of
test specimens
The preparation of the test specimen shall be in
accordance with ISO/DIS 6507-1.
A
cross section of test piece
shall
be taken by
mechanical cutting,
usually
transverse to the welded
joint.
This
operation
and
the subsequent preparation
of
the
surface shall be carried out carefully so that the
hardness of the surface to be tested is not affected
metallurgically
The surface to be tested
shall
be properly prepared
and preferably etched,
so
th t accurate measurements
of the diagonal of the indentations can be achieved in
the different zones of the welded joint.
6 Test
procedure
6.1
Rows
of
indentations R)
Figures
1
o
3
give examples
of
hardness
indentations
made in rows, including the distance from the surface,
so
that these rows, or parts of them, permit
assessment
of
the welded joint. If required by the
contsacting parties, aditiona rows of indentations
andor different locations may be made. The location
shall be stated in the test report.
In metals such as aluminium, copper and their alloys,
the rows on the root-side
of
butt welds (see figure 1
are not necessw.
The number and spacing of indentations
shall
be
sufficient to define hardened or softened regions due
to welding. Recommended distances between the
centrepoint of the indentations in the heat affected
zone HAZ) are given in table 2.
O
BSI 1997
pyright European Committee for Standardization
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S T D - B S I S E N
L q 3 - 2 - E N G L
1797
L b 2 4 b b 9 b O b L 4 7 880 M
Page
4
EN
1043-2 1996
Sufficient indentations shall be made
to
ensure that
unaffected parent metal is tested. In the weld metai,
the distance between indentations
shall
be selected
and checked so that the
results
obtained enable
assessment of the welded joint
to
be made.
For metals that harden in the HAZ
as
a result of
welding, two additional indentations in the H A Z shail
be made at
a
distance not exceeding 0,5mm between
the centrepoint of the indentation and the fusion line
see figure
2).
For other joint configurations or metals (e.g. austenitic
steels) special requirements may be given by an
application standard or by agreement between the
contracting parties.
Table
2.
Recommended distance L between the
centrepoint of the indentations in the heat
affected zone
( H A Z )
Vickers hardness
symbol
HV
0,J
Recommended distance between
indentations
15 )
Ferrous Aluminium, copper
metais2) and their alloys
0,6 to 2
H V l
1,5to
4
The distance of any indentation from the
previous
indentation
shall not be less than the value allowed for the previous
indentation by
IS0
DIS
6507-2.
6.2 Individual indentations E
Figure4 shows typical areas for the location of
individual indentations. The series
4
gives
information about the unaffected parent metal; the
series 5 8 refers to the
HAZ
and the series 9-11 to the
weld metal. Otherwise, the location of the indentation
can be determined on the basis of metallographic
examination.
To prevent the influence of deformation caused by an
indentation, the
minimum
distance between the
centrepoint of individual indentations in any direction
shall
not be less than
2,5 times
the mean diagonal of
the nearest a a c e n t indentation.
For metals which harden
in
the
HAZ as a
result of
welding, at least one indentation shall be made in the
HAZ at
a
distance of 0,5
mm
between the
centrepoint of the indentation and the fusion line.
For testing with individual indentations, the areas shall
be numbered
as
shown in figure 4.
7 Test
results
The hardness values shall be recorded in relation to
the position of the indentation.
8
Test report
A test report is required. The information
to
be
recorded
is
listed in annexes
A
and
B.
Use of the format given in m e x e s
A
and B is
recommended.
Other formats may be used provided that they contain
all the required information. Additional information
may be required by an application standard or by
agreement between the contracting paxlies.
V/
arent metai
eat affected zon e
Weld
metal
NOTE. For
thickness
4 mm, rows
of
indentations shall be at the mid thickness position.
Figure 1. Example of rows
of
indentation (R) in butt welds in ferrous metals
(Dimensions in milijmetres)
O
BSI 1997
pyright European Committee for Standardization
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Page 6
EN 1043-2 1996
O
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S T D - B S I S EN 1043-2-ENGL 1997
m
L b 2 4 b b S
OhOb147
b 5 3
m
Page
6
EN 1043-2 1996
Parent metai eat affected zone . .
Weld metal
Figure 3. Location of the indentations in spot and projection seam welds in ferrous
metals
Dimensions in millimetres
V Z l Parent metai
eat affected zone eld metal
NOTE.Other areas are possible, by agreement.
Figure 4. Examples showing areas for hardness testing with individual indentations E)
O
BSI
1997
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~
S T D - B S I S E N L043-2-ENGL 1777
m L b 2 4 b b 7
O b O b 1 5 0 375
m
Page
7
N
1043-2
1996
Annex A informative)
Hardness testing (R)
on
welded joints
Qpe
of hardness test:
Identification of the test machine:
Parent metal:
Thickness
of
materials
m e f weld:
Welding process:
Consumable:
Postweld heat treatment mdor ageing:
Notes:
Picture or drawing with numbered
areas
600
H
500
r
d
n 400
e
300
2
100
S
Hv )
Centre
of
weld
Distance from weld centre (in millimetres)
=
... to
be completed)
indication
of load in
accordance
with ISODIS 6507-1.
O
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1997
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STD.BSI BS
E N
L Y 3 - 2 - E N G L 1777 = L b 2 4 b b 7 b U b 1 5 L 201
Area Position of indentations
Unaffected
1
Parent metal, unaffected, surface
metal 2 Parent metal, unaffected, centre
Page
8
EN
1043-2 :
1996
Individual hardness
values HV )
Annex B informative)
Hardness
testing E)
on
welded joints
H
A
z
Type
of
hardness test:
Identifcation
of
the test machine:
Parent metal:
Thickness
of
materiah
'Qpe
of
weld
Welding process:
Consumable:
Postweld heat treatment and/or ageing:
Notes:
~~~
4
Parent metal, unaffected, centre
5
6
7
8
Parent metal, heat affected zone, top
of
weld
Parent metal, heat affected zone, bottom
of
weld
Parent metal, heat affected zone, top
of
weld
Parent metal, heat affected zone, bottom of weld
picture or drawing with numbered areas
E
I l
Weld metal
Parent
metal
9 Weld metal, top
1 Weld metal, centre
11
Weld metal, bottom
-Gent metal, unaffected, surface
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STD-BSI S
EN
1 0 4 3 - 2 - E N G L
1997
H
LbZqbbS ObOb152
148 H
BS
EN
1043-2 1997
BSI
389Ch i s w i ~ .
High
Road
London
w4
4AL
BSI ritish Standards Institution
BSI
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ISBN
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1
w w 2
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