ISO 6508:1986

Metallic materials — Hardness test — Rockwell test (scales A - B - C - D - E - F - G - H - K)

Matériaux métalliques — Essai de dureté — Essai Rockwell (échelles A - B - C - D - E - F - G - H - K)

Kovinska gradiva - Preskus trdote - Preskus trdote po Rockwellu (lestvice A - B - C - D - E - F - G - H - K)

General Information

• Status: Withdrawn
• Publication Date: 12-Nov-1986
• Withdrawal Date: 12-Nov-1986
• ICS: 77.040.10 - Mechanical testing of metals
• Technical Committee: ISO/TC 164/SC 3 - Hardness testing
• Drafting Committee: ISO/TC 164/SC 3 - Hardness testing
• Current Stage: 9599 - Withdrawal of International Standard
• Completion Date: 09-Sep-1999
• Ref Project: SIST ISO 6508:1995 - Metallic materials -- Hardness test -- Rockwell test (scales A - B - C - D - E - F - G - H - K)

Relations

• Revised: ISO 6508-1:1999 - Metallic materials — Rockwell hardness test — Part 1: Test method (scales A, B, C, D, E, F, G, H, K, N, T)
• Effective Date: 15-Apr-2008
• Revises: ISO/R 80:1968 - Rockwell hardness test (B and C scales) for steel
• Effective Date: 15-Apr-2008
• Revises: ISO 2713:1973 - Copper and copper alloys — Rockwell hardness test (B, F and G scales)
• Effective Date: 15-Apr-2008

Standards Content (Sample)

International Standard
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION.ME>KAYHAPOflHAFI OPTAHkI3AUMFl i-l0 CTAH~APTM3AL(MM.ORGANISATION INTERNATIONALE DE NORMALISATION
Metallic materials - Hardness test - Rockwell test
(scales A - B - C - D - E - F - G - H - K)
Ma t&iaux mb talliques - Essai de durete - Essai Rockwelf (echelles A - 6 - C - D - E - F - G - H - K)
First edition - 1986-11-15
UDC 669 : 620.178.152.42 Ref. No. ISO 6508-1986 (E)
Descriptors : metais, tests, mechanical tests, hardness tests, determination, Rockwell hardness.
Price based on 8 pages

---------------------- Page: 1 ----------------------
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of
national Standards bodies (ISO member bodies). The work of preparing International
Standards is normally carried out through ISO technical committees. Esch 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, govern-
mental and non-governmental, in liaison with ISO, also take part in the work.
Draft International Standards adopted by the technical committees are circulated to
the member bodies for approval before their acceptance as International Standards by
the ISO Council. They are approved in accordance with ISO procedures requiring at
least 75 % approval by the member bodies voting.
International Standard ISO 6568 was prepared by Technical Committee ISO/TC 164,
Mechanical tes ting of me tals.
lt cancels and replaces ISO Recommendation R 80-1968 and International Standard
ISO 2713-1973, of which it constitutes a technical revision.
Users should note that all International Standards undergo revision from time to time
and that any reference made herein to any other International Standard implies its
latest edition, unless otherwise stated.
International Organization for Standardkation, 1986
0
Printed in Switzerland

---------------------- Page: 2 ----------------------
INTERNATIONAL STANDARD
ISO 65084986 (EI
Metallic materials - Hardness test - Rockwell test
(scales A - B - C - D - E - F - G - H - K)
1 Scope and field of application ISO 373811, Hardmetals - Rockwell hardness test (scale A) -
Part 1: Test method.
This International Standard specifies the method for the
Rockwell hardness test (scales and field of application accor- I S 0 449811, Sin tered me tal ma terials, excluding hardme tals -
ding to table 1) for metallic materials. Determination of apparen t hardness - Part 7 : Materials of
essen tially uniform section hardness.
For specific materials and/or products, particular International
Standards exist (see clause 2).
NOTE - For certain materials, the fields of application may be nar-
3 Principle
rower than those indicated.
Forcing an indenter (diamond cone or steel ball) into the sur-
face of a test piece in two Steps under specified conditions (see
2 References
clause 7). Measuring the permanent increase e of the depth of
indentation.
I S 0 716, Metallic ma terials - Hardness test - Verifica tion of
Rockwell hardness testing machines (scales A - B - C - D
The unit of measurement for e is 0,002 mm. From the value of
-E-F-G-H-K).
e, a number known as the Rockwell hardness is derived.
Table 1
Field of
Preliminary Additional Total test application
test forte forte (Rockwell
Rockwell test forte
Type of indenter
hardness scale / hardness range)
F
FO F,
98,07 N 490,3
N 588,4 N 20 to 88 HRA
HRA Diamond cone
98,07 N 882,6 N
Steel ball 980,7 N 20 to 100 HRB
HRB 1,587 5 mm
98,07 N 1,373 kN
HRC Diamond cone 1,471 kN 20 to 70 HRC
98,07 N 882,6 N
HRD Diamond cone 980,7 N 40 to 77 HRD
98,07 N 882,6 N 980,7 N
HRE Steel ball 3,175 mm 70 to 100 HRE
98,07
N 490,3 N 588,4 N 60 to
HRF Steel ball 1,587 5 mm 100 HRF
98,07
HRG Steel ball 1,587 5 mm N 1,373 kN 1,471 kN 30 to
94 HRG
98,07 N 430,3 N
HRH Steel ball 3,175 mm 588,4 N 80 to 100 HRH
98,07 N 1,373 kN 1,471
HRK Steel ball 3,175 mm kN 40 to 100 HRK

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ISO 6508-1986 (El
4 Symbols and designations 6 Test piece
See tables 1 and 2 and figures 1 and 2.
6.1 The test shall be carried out on a surface which is smooth
and even, free from Oxide scale, foreign matter and, in par-
ticular, completely free from Iubricants.
Table 2
6.2 Preparation shall be carried out in such a way that any
Symbol Designation
alteration of the surface hardness due to heat or cold-working,
a Angle of the diamond cone
for example, is minimized.
R Radius of curvature at the tip of the
diamond cone
6.3 The thickness of the test piece or of the layer under test
D Diameter of steel ball
shall be at least ten times the permanent increase of depth e
(see annex A).
Preliminary test forte
FO
Additional test forte
Fl After the test, no deformation shall be visible on the sut-face of
F Total test forte the test piece opposite the indentation.
Depth of indentation under preliminary
h0
test forte before application of additional
6.4 For tests on convex cylindrical sut-faces and spherical sur-
test forte
faces the corrections given in annex B, table 3 or 4 and table 5
in annex C, shall be applied. In the absence of corrections for
Increase in depth of indentation under
hl
additional test forte tests on concave sur-faces, tests on such surfaces shall be the
su bject of special agreement.
e Permanent increase of depth of indentation
under preliminary test forte after removal
of additional test forte, expressed in units
7 Procedure
of 0,002 mm
HRA
Rockwell hardness = 100 -e 7.1 In general, the test should be carried out at ambient
HRC
HRD temperature within the limits of 10 to 35 OC. Tests carried out
under controlled conditions shall be made at a temperature of
HRB
23 + 5 OC.
HRE
HRF
Rockwell hardness = 130 -e
7.2 The test piece shall be placed on a rigid support and sup-
HRG
ported in such a manner that the surface to be indented is in a
HRH
HRK plane normal to the axis of the indenter and the line of the in-
/
denting forte.
Products of cylindrical shape shall be suitably supported, for
example, on centering V-blocks of steel with a Rockwell hard-
The Rockwell hardness is denoted by the Symbol HR preceded
ness of at least 60 HRC. Special attention shall be given to the
by the hardness value and completed by a letter indicating the
correct seating, bearing and alignment of the indenters, the
scale.
test piece, the centering V-blocks and the specimen holder of
the testing machine since any perpendicular misalignment may
Example
result in incorrect observations.
59 HRC = Rockwell hardness of 59, measured on the C scale.
7.3 Bring the indenter into contact with the test sut-face and
apply the preliminary test forte F0 = 98,0
...

SLOVENSKI STANDARD
SIST ISO 6508:1995
01-november-1995
Kovinska gradiva - Preskus trdote - Preskus trdote po Rockwellu (lestvice A - B - C
- D - E - F - G - H - K)
Metallic materials -- Hardness test -- Rockwell test (scales A - B - C - D - E - F - G - H -
K)
Matériaux métalliques -- Essai de dureté -- Essai Rockwell (échelles A - B - C - D - E - F
- G - H - K)
Ta slovenski standard je istoveten z: ISO 6508:1986
ICS:
77.040.10 Mehansko preskušanje kovin Mechanical testing of metals
SIST ISO 6508:1995 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST ISO 6508:1995

---------------------- Page: 2 ----------------------

SIST ISO 6508:1995
International Standard
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION.ME>KAYHAPOflHAFI OPTAHkI3AUMFl i-l0 CTAH~APTM3AL(MM.ORGANISATION INTERNATIONALE DE NORMALISATION
Metallic materials - Hardness test - Rockwell test
(scales A - B - C - D - E - F - G - H - K)
Ma t&iaux mb talliques - Essai de durete - Essai Rockwelf (echelles A - 6 - C - D - E - F - G - H - K)
First edition - 1986-11-15
UDC 669 : 620.178.152.42 Ref. No. ISO 6508-1986 (E)
Descriptors : metais, tests, mechanical tests, hardness tests, determination, Rockwell hardness.
Price based on 8 pages

---------------------- Page: 3 ----------------------

SIST ISO 6508:1995
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of
national Standards bodies (ISO member bodies). The work of preparing International
Standards is normally carried out through ISO technical committees. Esch 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, govern-
mental and non-governmental, in liaison with ISO, also take part in the work.
Draft International Standards adopted by the technical committees are circulated to
the member bodies for approval before their acceptance as International Standards by
the ISO Council. They are approved in accordance with ISO procedures requiring at
least 75 % approval by the member bodies voting.
International Standard ISO 6568 was prepared by Technical Committee ISO/TC 164,
Mechanical tes ting of me tals.
lt cancels and replaces ISO Recommendation R 80-1968 and International Standard
ISO 2713-1973, of which it constitutes a technical revision.
Users should note that all International Standards undergo revision from time to time
and that any reference made herein to any other International Standard implies its
latest edition, unless otherwise stated.
International Organization for Standardkation, 1986
0
Printed in Switzerland

---------------------- Page: 4 ----------------------

SIST ISO 6508:1995
INTERNATIONAL STANDARD
ISO 65084986 (EI
Metallic materials - Hardness test - Rockwell test
(scales A - B - C - D - E - F - G - H - K)
1 Scope and field of application ISO 373811, Hardmetals - Rockwell hardness test (scale A) -
Part 1: Test method.
This International Standard specifies the method for the
Rockwell hardness test (scales and field of application accor- I S 0 449811, Sin tered me tal ma terials, excluding hardme tals -
ding to table 1) for metallic materials. Determination of apparen t hardness - Part 7 : Materials of
essen tially uniform section hardness.
For specific materials and/or products, particular International
Standards exist (see clause 2).
NOTE - For certain materials, the fields of application may be nar-
3 Principle
rower than those indicated.
Forcing an indenter (diamond cone or steel ball) into the sur-
face of a test piece in two Steps under specified conditions (see
2 References
clause 7). Measuring the permanent increase e of the depth of
indentation.
I S 0 716, Metallic ma terials - Hardness test - Verifica tion of
Rockwell hardness testing machines (scales A - B - C - D
The unit of measurement for e is 0,002 mm. From the value of
-E-F-G-H-K).
e, a number known as the Rockwell hardness is derived.
Table 1
Field of
Preliminary Additional Total test application
test forte forte (Rockwell
Rockwell test forte
Type of indenter
hardness scale / hardness range)
F
FO F,
98,07 N 490,3
N 588,4 N 20 to 88 HRA
HRA Diamond cone
98,07 N 882,6 N
Steel ball 980,7 N 20 to 100 HRB
HRB 1,587 5 mm
98,07 N 1,373 kN
HRC Diamond cone 1,471 kN 20 to 70 HRC
98,07 N 882,6 N
HRD Diamond cone 980,7 N 40 to 77 HRD
98,07 N 882,6 N 980,7 N
HRE Steel ball 3,175 mm 70 to 100 HRE
98,07
N 490,3 N 588,4 N 60 to
HRF Steel ball 1,587 5 mm 100 HRF
98,07
HRG Steel ball 1,587 5 mm N 1,373 kN 1,471 kN 30 to
94 HRG
98,07 N 430,3 N
HRH Steel ball 3,175 mm 588,4 N 80 to 100 HRH
98,07 N 1,373 kN 1,471
HRK Steel ball 3,175 mm kN 40 to 100 HRK

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SIST ISO 6508:1995
ISO 6508-1986 (El
4 Symbols and designations 6 Test piece
See tables 1 and 2 and figures 1 and 2.
6.1 The test shall be carried out on a surface which is smooth
and even, free from Oxide scale, foreign matter and, in par-
ticular, completely free from Iubricants.
Table 2
6.2 Preparation shall be carried out in such a way that any
Symbol Designation
alteration of the surface hardness due to heat or cold-working,
a Angle of the diamond cone
for example, is minimized.
R Radius of curvature at the tip of the
diamond cone
6.3 The thickness of the test piece or of the layer under test
D Diameter of steel ball
shall be at least ten times the permanent increase of depth e
(see annex A).
Preliminary test forte
FO
Additional test forte
Fl After the test, no deformation shall be visible on the sut-face of
F Total test forte the test piece opposite the indentation.
Depth of indentation under preliminary
h0
test forte before application of additional
6.4 For tests on convex cylindrical sut-faces and spherical sur-
test forte
faces the corrections given in annex B, table 3 or 4 and table 5
in annex C, shall be applied. In the absence of corrections for
Increase in depth of indentation under
hl
additional test forte tests on concave sur-faces, tests on such surfaces shall be the
su bject of special agreement.
e Permanent increase of depth of indentation
under preliminary test forte after removal
of additional test forte, expressed in units
7 Procedure
of 0,002 mm
HRA
Rockwell hardness = 100 -e 7.1 In general, the test should be carried out at ambient
HRC
HRD temperature within the limits of 10 to 35 OC. Tests carried out
under controlled conditions shall be made at a temperature of
HRB
23 + 5 OC.
HRE
HRF
Rockwell hardness = 130 -e
7.2 The test piece shall be placed on a rigid support and sup-
HRG
ported in such a manner that the surface to be indented is in a
HRH
HRK plane normal to the axis of the indenter and the line of the in-
/
denting forte.
Products of cylindrical shape shall be suitably supported, for
example, on centering V-blocks of steel with a Rockwell hard-
The Rockwell hardness is denoted by the Symbol HR preceded
ness of at least 60 HRC. Special attention shall be given to the
by the hardness val
...

Norme internationale @ 6508
INTERNATIONAL ORGANIZATION FOR STANDARDlZATION*ME~YHAPOLIHAR OPrAHM3AUMR Il0 CTAHLIAPTM3AUMl4*ORGANlSATlON INTERNATIONALE DE NORMALISATION
Matériaux métalliques - Essai de dureté - Essai
* Rockwell (échelles A - B - C - D - E - F -
G-H-K)
Metallic materials - Hardness test - Rockwell test (scales A - B - C - D - E - F - G - H - K/
Première édition - 1986-11-15
*
- 5 CDU 669:620.178.152.42 Ref. no : IS0 6508-1986 (FI
Descripteurs : métal, essai, essai mécanique, essai de dureté, détermination, dureté Rockwell.
3-
8
s
Prix basé sur 8 pages

---------------------- Page: 1 ----------------------
Avant-propos
L'ISO (Organisation internationale de normalisation) est une fédération mondiale
d'organismes nationaux de normalisation (comités membres de I'ISO). L'élaboration
I'ISO. Chaque
des Normes internationales est confiée aux comités techniques de
comité membre intéressé par une étude a le droit de faire partie du comité technique
créé à cet effet. Les organisations internationales, gouvernementales et non gouverne-
e
mentales, en liaison avec I'ISO participent également aux travaux.
Les projets de Normes internationales adoptés par les comités techniques sont soumis
aux comités membres pour approbation, avant leur acceptation comme Normes inter-
nationales par le Conseil de I'ISO. Les Normes internationales sont approuvées confor-
mément aux procédures de I'ISO qui requièrent l'approbation de 75 % au moins des
comités membres votants.
La Norme internationale IS0 6508 a été élaborée par le comité technique ISO/TC 164,
Essais mécaniques des métaux.
Elle annule et remplace la Recommandation ISO/R 80-1968 et la Norme internationale
IS0 2713-1980, dont elle constitue une révision technique.
L'attention des utilisateurs est attirée sur le fait que toutes les Normes internationales
sont de temps en temps soumises à révision et que toute référence faite à une autre
Norme internationale dans le présent document implique qu'il s'agit, sauf indication
contraire, de la dernière édition.
O Organisation internationale de normalisation, 1986 0
Imprimé en Suisse

---------------------- Page: 2 ----------------------
NOR ME I NTER NATIONALE
IS0 6508-1986 (F)
Matériaux métalliques - Essai de dureté - Essai
Rockwell (échelles A - B - C - D - E - F -
G-H-K)
1 Objet et domaine d'application
IS0 373811, Métaux durs - Essai de dureté Rockwell
(échelle Al - Partie I: Méthode d'essai.
La présente Norme internationale spécifie la méthode d'essai de
dureté Rockwell (échelles et domaine d'application selon le
IS0 W/1, Matériaux métalliques frittés à l'exclusion des
tableau 1) pour les matériaux métalliques.
matériaux durs - Détermination de la dureté apparente -
Partie 7: Matériaux de dureté uniforme dans la section.
Des Normes internationales particulières existent pour les maté-
riaux et/ou pour les produits spécifiques (voir chapitre 2).
NOTE - Pour certains matériaux, les domaines d'application peuvent
3 Principe
être plus étroits que ceux indiqués.
Impression en deux temps à la surface d'une éprouvette, d'un
pénétrateur (cône en diamant ou bille d'acier) dans des condi-
2 Références
tions spécifiées (voir chapitre 7). Mesurage de l'accroissement
rémanent e de la profondeur de pénétration.
IS0 716, Matériaux métalliques - Essai de dureté - Contrôle
I * des machines d'essai de dureté Rockwell (échelles A - B -
L'unité de mesure de e est égale à 0,002 rnm. A partir de cette
valeur de e est déduit un nombre appelé dureté Rockwell.
Tableau 1
Domaine
Échelle
d'application
Symbole Charge Charge
Type de pénétrateur Surcharge (fourchette de
de dureté
initiale totale
de dureté
Rockwell dureté
F, E Rockwell)
HRA Cône diamant 98,07 N 490.3 N 58&4 N 20à 88HRA
HRB Bille acier 1,587 5 mm 98,07 N 20 à 100 HRB
882,6 N 980,7 N
HRC Cône diamant 98,07 N 1,373 kN 1,471 kN 20à 70 HRC
HRD 98,07 N 882,6 N 403 77HRD
Cône diamant 980,7 N
HRE Bille acier 3,175 mm 98,07 N 882,6 N 980.7 N 70 à 100 HRE
HRF Bille acier 1,587 5 mm 98,07 N
490.3 N 588,4 N 60 à 100 HRF
HRG Bille acier 1,587 5 mm 98,07 N 1,373 kN 1,471 kN 30 à 94 HRG
HRH Bille acier 3,175 mm 98,07 N 490,3 N 588,4 N 80 à 100 HRH
HRK Bille acier 3,175 mm 40 à 100 HRK
98,07 N 1,373 kN 1,471 kN
1

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IS0 65og-1986 (FI
4 Symboles et désignations 6.2 La préparation doit être effectuée de manière que toute
altération de la dureté de la surface, par exemple par échauffe-
Voir tableaux 1 et 2 et figures 1 et 2.
ment ou par écrouissage, soit minimisée.
2
Tableau
6.3 L'épaisseur de l'éprouvette ou de la couche superficielle à
essayer doit être au moins égale à dix fois l'accroissement
Symbole Désignation
rémanent de la profondeur de pénétration e (voir annexe A).
a Angle au sommet du cône en diamant
Rayon de la pointe du cône en diamant
R
Après l'essai, aucune déformation ne doit être visible sur la sur-
face de l'éprouvette opposée à l'empreinte.
D Diamètre de la bille d'acier
Charge initiale
FO
6.4 Pour les essais effectués sur des surfaces convexes cylin-
Surcharge
Fi
driques et des surfaces sphériques, les corrections données
F Charge totale
B et le tableau 5 de l'annexe
dans le tableau 3 ou 4 de l'annexe
Profondeur de pénétration sous la charge
C, doivent être appliquées. En l'absence de corrections pour les
h0
initiale avant application de la surcharge
essais sur des surfaces concaves, les essais sur de telles surfa-
ces doivent faire l'objet d'un accord particulier.
Accroissement de la profondeur de
hl
pénétration sous i'effet de la surcharge
e Accroissement rémanent de la profondeur de
7 Mode opératoire
pénétration sous la charge initiale après
enlèvement de la surcharge, exprimé en unités
égales à 0,002 mm
7.1 En règle générale, l'essai est effectué à la température
HRA
ambiante dans les limites comprises entre 10 et 35 OC. Les
HRC Dureté Rockwell = 100 -e
essais effectués sous conditions surveillés doivent être effec-
HRD 1
tués à une température de 23 f 5 OC.
HRB
HRE
7.2 L'éprouvette doit être placée sur un support rigide et
HRF
calée de manière que la surface à essayer soit dans un plan nor-
HRG
mal à l'axe du pénétrateur et à la direction de la force de péné-
HRH
tration.
HRK
Les produits de forme cylindrique doivent être convenablement
La dureté Rockwell est désignée par le symbole HR précédé par
calés, par exemple sur des V de centrage en acier ayant une
l
...