EN 1043-2~Micro Hardness Test

7/23/2019 EN 1043-2~Micro Hardness Test

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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

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~

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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

pyright European Committee for Standardization

ovided by IHS under license with CEN Licensee=tetra pak/5944566001Not for Resale, 05/03/2007 00:33:59 MDTreproduction or networking permitted without license from IHS

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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

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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.

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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

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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)

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m L b 2 4 b b 7

O b O b 1 5 0 375

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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.

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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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EN

1 0 4 3 - 2 - E N G L

1997

H

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148 H

BS

EN

1043-2 1997

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EN 1043-2~Micro Hardness Test

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