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U.D.C.: 669.14.018.26 February 1979
Tool steelsQuality requirements
EURONORM
96 79
Contents
1 SCOPE
2 REFERENCES
3 REQUIREMENTS3.1 Information to be supplied with enquiry and
order3.2 Production process3.3 Condition of delivery3.4 Requirement classes3.5 Chemical composition3.6 Mechanical properties
3.7 Surface quality3.8 Dimensions and tolerances
4 TESTING4.1 Number of samples4.2 Sampling4.3 Test methods4.4 Retests4.5 Documents
5 COMPLAINTS
ANNEX Comparison between the steel designations in this EURONORM and those inISO/DIS 495 7
1 SCOPE
1.1
This EURONORM covers the grades of wrought steellisted in Tables 2 to 5 namely :(a) unalloyed cold-work tool steels (see Table 2);(b) alloyed cold-work tool steels (see Table 3);(c) alloyed hot-work tool steels (see Table 4);(d) high-speed tool steels (see Table 5).
1.2
Unless otherwise stated, this EURONORM applies to atypes of hot-rolled, forged or cold-drawn products whicare to be supplied in one of the surface and heat-treatmeconditions given in clause 3.3.
EURONORM 3
EURONORM 4
2 REFERENCES
Brinell hardness test for steel. EURONO RM 18
Rockwell hardness test (scales A,C, B, F) for steel. EURONORM 21
Selection and preparation of samples and test-pieces for steel andiron and steel products.General technical delivery requirements for steel and iron and steelproducts.
3 REQUIREMENTS
3.1 Information to be supplied with enquiry andorder
The corresponding paragraphs of EURONORM 21 areapplicable.The following information in particular shall be given inthe enquiry and order :
(a) The shape, surface condition and the dimensions of tproduct (see clauses 3.3 and 3.8).
(b) The type of steel (see Tables 2 to 5) as well as the heatreated condition (see clause 3.3).
(c) The requirement class (see Table 1) and if called fothe kind of documentation required (see clause 4.5).
Only the last edition of the EURONORMS quoted is valid
Copyright by the Standardization O ffices of the European Com munities Member S tates
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Pagel
3.2 Production process
Unless otherwise agreed in the order, the steelmaking process used shall be at the discretion of the manufacturer; itshall, however, be reported to the purchaser on request.Unless dictated by the shape of the product, the processfor working the material shall be at the manufacturer's
discretion.
3.6 Mechanical properties
3.6.1When ordered to the requirement classes 2 or 3, themaximum Brinell hardness values given in Tables 2 to 5apply for the delivery condition of steels ordered in theannealed condition.
3.3 Condition of delivery
The condition of delivery shall be agreed at the time of theenquiry or order.Usual surface conditions are : the hot-rolled or forged condition; the machined (ground, polished, turned, planed or mil
led) condition; the cold-reduced condition.
The usual heat-treatment condition is annealed. Individually manufactured blocks for moulds and discs are sometimes delivered in the hardened and tempered condition.
3.4 Requirement classes (')The steels covered by this EURONORM shall be orderedand delivered to one of the requirement classes given inTable 1.
3.5 Chemical composition
3.5.1
The chemical composition as expressed by the cast analysis shall conform to that given in Tables 2 to 5.
3.5.2
If ordered to the requirement classes 1 or 2 (see Table 1)the permissible deviations given in Tables 2a, 3a, 4a, and5a between the limiting values specified in Tables 2, 3, 4and 5 and the analysis of products up to 160 mm diameter
or equivalent dimensions shall apply.If necessary, the permissible deviations for larger productsshall be agreed at the time of the enquiry or order.
3.5.3
If ordered to the requirement class 3, for which theminimum Rockwell C hardness values are the acceptancecriteria, the cast analysis may deviate slightly from thelimiting values given in Tables 2 to 5.
3.6.2
When ordered to the requirement class 3 the minimumRockwell C hardened values given in Tables 2 to 5 applyfor hardening test-pieces prepared in accordance withclause 4.2.3.
3.6.3
In Figures 1 to 4 the hardness/tempering temperaturecurves of the steels are reproduced for guidance.
Note:
The hardness/tempering temperature-curve for a givensteel type can vary to a noticeable extent depending on thechemical composition of the cast or of the test-piece, andthe hardening and tempering conditions. Consequently thecurves in Figures 1 to 4 which were derived from the testresults from different sources can at present give only arough idea of the tempering behaviour of the steels.
The curves may, with the above reservations, be used fortest-pieces, which were tempered with the temperingtemperature in question, but which otherwise were prepared according to the conditions for the hardening test(see clause 4.2.3). When using the curves to estimate thehardness to be expected with hardened and temperedtools, it should be taken into account that the optimumheat-treatment conditions for tools are not necessarilyidentical to those specified for the test-pieces and particularly that the suggested heating times in clause 4.2.3 maynot be right for thicker tools.
(') In earlier EURONORMS, the term 'type of condition of delivery' wasused. It was replaced by 'requirement class' in order to avoid confusionwith the term 'delivery condition' which is often used for the treatmentcondition of the steel at the time of delivery.
3.7 Surface quality
3.7.1
All products shall have a surface finish compatible withthe production process used and be free from surfaceimperfections which could impair significantly their subsequent processing or serviceability.
3.7.2
Ground, polished or finished machined products shall befree from surface defects and decarburization.
3.7.3
Hot-rolled, forged, cold-drawn or rough-machined products shall be delivered with a machining allowance suffi-
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cient for the removal of decarburization and surfacedefects from all surfaces by machining or grinding.
3.7.3.1
In the case of hot-rolled, cold-drawn or hot-forgedrounds, hexagons and octagons, unless otherwise agreedat the time of the order, the values given in Table 6 shallapply for the minimum machining allowances per side forthe removal of surface decarburization and surface imperfections.
3.7.3.2
For products other than the bars mentioned in clause3.7.3.1, for bar shapes and dimensions not included in theTable and for rough-machined products, the minimummachining allowances are to be agreed at the time of thenquiry or order.
3.8 Dimensions and tolerancesThe dimensions and tolerances for tool steels are to beagreed at the time of the enquiry or order as long as nospecial EURONORMS for them are available.
4 TESTING
4.1 Number of samples 4.2 Sampling
4.1.1 Chemical composition
If agreed at the time of the inquiry or order, the castanalysis shall be reported by the manufacturer. If a product analysis is called for by the order, at least one sampleshall be taken per cast.
4.2.1
For product analyses the millings shall be taken uniformlyover the entire cross-section of the product. If this isimpracticable, the millings shall be taken from a suitablposition representing the whole cross-section.
4.1.2 Mechanical properties 4.2.2
4.1.2.1
For material supplied to the requirement classes 2 r 3 ofTable 1 with a guaranteed maximum Brinell hardness inthe annealed condition, one sample shall be taken fromeach cast, from each heat-treatment batch and from eachsize.If there is only a small difference in thickness of the different sizes (thickness ratio 1.5) the separation of the products into batches according to their dimensions can beomitted.
If the product is heat treated in a continuous furnace, onesample shall be taken per 10 t, but at least one sampleshall be taken from each cast and from each size range.
4.1.2.2
For products supplied to the requirement class 3 of Table1, with a guaranteed minimum Rockwell C hardness, on areference test-piece, one sample shall be taken per cast.
4.1.3 Surface quality
If the purchaser requires the surface quality to be tested,
then the number of samples to be taken shall be agreed atthe time of the enquiry or order.
For the Brinell hardness test the surface of the sample orof a test-piece taken from the sample in the delivery condtion shall be prepared in accordance with the requirementof EURONORM 3.
4.2.3
For the hardening test one test-piece shall be cut off fromthe sample as indicated in Figure 5. The test-pieces shalbe hardened and tempered under the conditions given inTables 2 to 5, precautions being taken to avoid decarburization.The total heating time in a salt bath (soaking time) shalbe:
For test-pieces from
Cold- or hot-work steels (Tables 2to 4)
High-speed steels (Table 5)
Total heating time for
hardeningmin.
25 13
temperingmin.
60At least
2 periods
of 60
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If the test-pieces are not heated in a salt-bath, the heatingtime must be extended accordingly.The cut surface shall be prepared in accordance withEURONORM 4 for the Rockwell C hardness test.
4.2.4
If the purchaser asks for a test of the surface quality, thedetails for sampling and for the preparation of the test-pieces shall be agreed at the time of the enquiry or order.
4.2.5
General requirements for the selection and preparation oftest-pieces shall be in accordance with EURONORM 18.
4.3 Test methods
4.3.1In cases of dispute, the methods for chemic l n lysis shallbe those laid down in the relevant EURON ORM S. Whereno EURONORMS are available for determining the alloycontent of a steel then the methods may be agreed between the manufacturer and the user.
4.3.2
The Brinell hardness test shall be carried out in accordance with EURONORM 3.
4.3.3
The Rockwell C hardness test shall be carried out inaccordance with EURONORM 4.
4.3.4
If the purchaser asks for the surface quality to be tested,the test method shall be agreed at the time of the enquiryor order.
4.4 Retests
For retests the appropriate paragraphs of EURONORMS21 shall apply.
4.5 Documents
The appropriate paragraphs of EURONORMS 21 areapplicable for documentation.
5 COMPLAINTS
For complaints and the method of dealing with them the appropriate paragraphs of EURONORMS 21 appl
Table 1
Requirement classes '
Requirement
Chemical compositionHardnessin the annealed conditionof quenched and tempered reference test-pieces
Requirement class 1
1 2 3
X X X
- X X
- - X
1 The numbers referring to the delivery requirements are provisional. Permanent numbers will be given as soon as aEURONORM for a system of reference numbers and letters for the 'requirement classes' has been drawn up.
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Table 2
Unalloyed cold-work tool steelsChemical composition (cast analysis), temperature for hardening and hardness in the annealed or hardened and tempered
condition
Type of steel
CT 70CT 80CT 90CT 105CT 120
1 Elements noprevent theS 0.20 CrSee clause 4.
C
0.65 to 0.740.75 to 0.840.85 to 0.940.95 to 1.091.10 to 1.29
quoted in the above addition from scrap or, S 0.25 Cu and S 02.3.
Chemica
Si
0.10 to 0.300.10 to 0.300.10 to 0.300.10 to 0.300.10 to 0.30
lble shall not be intenother materials used25 Ni should, how
composition '
Mn
0.10 to 0.350.10 to 0.350.10 to 0.350.10 to 0.350.10 to 0.35
max.
0.0200.0200.0200.0200.020
smax.
0.0200.0200.0200.0200.020
Hardness
(annealed)
max.HB
183192207212217
Hardening test 2
Quenchingtemperature
C 1 0
800790780780770
Medium
WaterWaterWaterWaterWater
Temperingtemperature
C 10
180180180180180
Hardnessmin.HRC
5758606162
tionally added to the steel other than for the purpose of finishing the heat. All reasonable precautions shall be taken toin manufacture, of such elements which affect the hardenability, mechanical properties and applicability. Contents ofever, be regarded as being in conformity with the above requirement.
Table 2a
Unalloyed cold-work tool steelsPermissible deviations between specified analysis (see Table 2) and product analyses
(See clause 3.5.2)
Permissible deviations '
C
0 . 0 3
Si
0.03
M n
0.04
P
+ 0.005
%s
+ 0.005
1 The deviations, other than when maxima only are specified, apply either above or below the specified limits of the range but notboth above and below for the same element from different samples from the same cast.When maxima only are specified the deviations are positive only.The values are valid only if the samples are selected in accordance with EURONORM 18 so that they represent the averagecomposition of the cross-section of the product.
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Table 3
Alloyed cold-work tool steelsChemical composition (cast analysis), temperature for hardening and hardness in the annealed or hardened and tempered conditions
a
oc,
Type of steal
100 V 2
60 SiMn 7
51CrMnV4
45 WCrV 8
55 WCrV 8
102 Cr 6
107 CrV 3
107 WCr 590 M nV 8
95 MnWCr 5
X 100 CrMoV 5 1
X 160 CrMoV 12 1
X 210 Cr 12X 210 CrW 12 1
S CrMo 16X 5 CrMo 5 1
7 CrNiMo 8
35 CrMo 8
X 21 Cr 13X 31 Cr 13
41 Cr 13
38 CrMo 16 1
102 CrMo 17
Chemical composition '
% C
0.95 to 1.10
0.52 to 0.60
0.48 to 0.55
0.40 to 0.50
0.50 to 0.60
0.95 to 1.10
1.00 to 1.15
1.00 to 1.15
0.85 to 0.95
0.90 to 1.00
0.95 to 1.05
1.45 to 1.75
1.90 to 2.20
2.00 to 2.30
S 0 .07 O . 0 7
g 0.10
0.30 to 0.40
0.16 to 0.25
0.26 to 0.35
0.36 to 0.45
0.33 to 0.43
0.95 to 1.10
1 For all steels phosphorus ^ 0 .030% an2 See clause 4.2.3.3 These steels are used in the carburized 4 This steel is normally supplied in the pr
%Si
0.10 to 0.30
1.50 to 2.00
0.10 to 0.40
0.80 to 1.10
0.80 to 1.10
0.10 to 0.40
0.10 to 0.40
0.10 to 0.40
0.10 to 0.40
0.10 to 0.40
0.10 to 0.40
0.10 to 0.40
0.10 to 0.40
0.10 to 0.40
0.05 to 0.25
0.05 to 0.25
0.10 to 0.40
0.30 to 0.80
1.0
- S 1.0 1.0 1.0S 1.0
i sulphur S 0.030%.
nd heat-treated conditioe-heat-treated condition
% Mn
0.10 to 0.35
0.60 to 0.90
0.70 to 1.00
0.15 to 0.45
0.15 to 0.45
0.15 to 0.45
0.25 to 0.55
.70 to 1.00
1.70 to 2.20
1.05 to 1.35
0.35 to 0.65
0.15 to 0.45
0.15 to 0.45
0.15 to 0.45
0.05 to 0.25
0.05 to 0.25
0.20 to 0.50
0.50 to 1.50
S 1.0
S 1.0
S 1.0
S 1.0
S 1.0
.
with a hardness of a
% Cr
0.90 to 1.20
0.90 to 1.20
0.90 to 1.20
1.35 to 1.65
0.60 to 0.90
0.80 to 1.10
0.20 to 0.50
.35 to 0.65
4.50 to 5.50
11.00 to 13.00
11.00 to 13.00
11.00 to 13.00
3.50 to 4.50
4.50 to 5.50
1.80 to 2.10
1.50 to 2.20
12.00 to 14.00
12.00 to 14.00
12.50 to 14.50
15.00 to 17.00
16.00 to 18.00
^proximately 300 HB.
% Mo
0.90 to 1.40
0.70 to 1.00
0.40 to 0.60
0.90 to 1.20
0.10 to 0.30
0.40 to 0.60
1.00 to 1.50
0.40 to 0.70
% Ni
0.40 to 0.60
S 1.0
1.0
S 1.0
% V
0.10 to 0.30
0.10 to 0.20
0.10 to 0.30
0.10 to 0.30
0.05 to 0.25
0.10 to 0.30
0.05 to 0.25
0.25 to 0.45
0.35 to 0.65
w
1.70 to 2.30
1.70 to 2.30
1.00 to 1.60
0.40 to 0.70
0.80 to 1.10
Hardness(annealed)
max.HB
212
229
241
229
229
223
219
229
229
229
241
255
248
255
121
128
156
30 04
223
235
255
285
285
Quenchingtemperature
C 10
790
855
865
900
900
840
800
820
790
800
970
1 020
970
970
'1
4
1 0101 0101 0101 0101 030
Harden
Quenchingmedium
WaterOilOilOilOil
OilWater
OilOilOil
AirAir
OilOil
1
1
1
4
OilOilOilOilOil
ng test2
Temperingtemperature
C 10
180180180180180
180180180180180
180180
180180
1
1
A
180180180180180
Hardnessmin.HRC
6156555658
6061616060
6061
6262
j
j
i
4
4549514958
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Table 3 a
Alloyed cold-work tool steelsPermissible deviation between cast analysis (see Table 3) and product analysis
(See clause 3.5.2)
Page 7
Type of steel
100 V 2
60 SiMn 751 CrivlnV 445 WCrV 855 WCrV 8
102 Cr 6107 CrV 3107 WCr 590 MnV 895 MnWCr 5
X 100 CrMoV 5 1X 160 CrMoV 12 1
X 210 Cr 12X 210 CrW 12 1
5 CrMo 16X 5 CrMo 5 17 CrNiMo 8
35 CrMo 8
X 21 Cr 13X 31 Cr 13 41 Cr 13 38 CrMo 16 1 102 CrMo 17
1 The deviations, other than wdifferent samples from the saWhen maxima only are speciThe values are valid only if f
Permissible deviations '
C
0 . 0 3
0 . 0 3 0.03 0.03 0.03
0 . 0 3 0 . 0 3 0 . 0 3 0 . 0 3 0.03
0.03 0.04
0 . 0 5 0 . 0 5
+ 0.02+ 0.02+ 0.02
0.02
0.02 0.03 0 . 0 3 0 . 0 3 0 . 0 3
ien maxima 01me cast,ied the deviatiie samples are
Si
0 . 0 3
0 . 0 5 0 . 0 3 0 . 0 5 0 . 0 5
0.03 0.03 0 . 0 3 0 . 0 3 0 . 0 3
0 . 0 3 0 . 0 3
0 . 0 3 0 . 0 3
0 . 0 3 0.03 0.03
0 . 0 3
+ 0.05+ 0.05+ 0.05+ 0.05+ 0.05
lly are specifi
ons are positivselected in ace
Mn
0 . 0 4
0.04 0.04 0.04 0 . 0 4
0 . 0 4 0 . 0 4 0 . 0 4 0 . 0 8 0 . 0 6
0.04 0 . 0 4
0.04 0 . 0 4
0 . 0 4 0 . 0 4 0 . 0 4
0 . 0 4
+ 0.04+ 0.04+ 0.04+ 0.04+ 0.04
1 apply either
: only.jrdance with E
P
+ 0.005
+ 0.005+ 0.005+ 0.005+ 0.005
+ 0.005+ 0.005+ 0.005+ 0.005+ 0.005
+ 0.005+ 0.005
+ 0.005+ 0.005
+ 0.005+ 0.005+ 0.005
+ 0.005
+ 0.005+ 0.005+ 0.005+ 0.005+ 0.005
above or below
U R O N O R M 1
s
+ 0.005
+ 0.005+ 0.005+ 0.005+ 0.005
+ 0.005+ 0.005+ 0.005+ 0.005+ 0.005
+ 0.005+ 0.005
+ 0.005+ 0.005
+ 0.005+ 0.005+ 0.005
+ 0.005
+ 0.005+ 0.005+ 0.005+ 0.005+ 0.005
Cr
0 . 0 5 0 . 0 5 0 . 0 5
0.05 0 . 0 5 0 . 0 5 0 . 0 5 0 . 0 5
0 . 1 0 0 . 1 5
0 . 1 5 0.15
0.10 0 . 1 0 0 . 0 7
0 . 0 7
0 . 1 5 0 . 1 5 0.15 0 . 1 5 0 . 1 5
Mo
0 . 0 5 0.05
0 . 0 5 0 . 0 5 0 . 0 3
0 . 0 5
0 . 0 5 0 . 0 5
N i
'
0 . 0 3
+ 0.03+ 0.03+ 0.03
V
0 . 0 2
0.02 0 . 0 2 0 . 0 2
0 . 0 2
0 . 0 2 0 . 0 2
0 . 0 3 0.04
w
0.07 0.07
0 . 0 7
0 . 0 4
0 . 0 5
the specified limits of the range but not both above and below for the same element from
so that they represent the average composition of the cross-section of the product.
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Table 4
Hot-work tool steelsChemical composition (cast analysis), temperature for hardening and hardness in the annealed or quenched and tempered conditions
TOn
Type of steel
40 NiCrMoV 16
55 NiCrMoV 7
35 CrMo 8
30 CrMoV 12 11X 37 CrMoV 5 1
X 40 CrMoV 5 1 1
X 30 WCrV 5 3
X 30 WCrV 9 3X 21 Cr 13
X 22 CrNi 17
X 16 CrNiSi 25 20
X 13 NiCrSi 35 16
Chemical composition'
% C
0.35 to 0.45
0.50 to 0.60
0.30 to 0.40
0.25 to 0.350.32 to 0.42
0.35 to 0.45
0.25 to 0.35
0.25 to 0.35
0.16 to 0.25
0.17 to 0.25
S 0.20
S 0.15
1 For all steels phosphorus ^ 0.030% an2 See clause 4.2.3.J The steel is normally supplied in the pr4 Hardness in the quenched condition g
%Si
0.10 to 0.40
0.10 to 0.40
0.30 to 0.80
0.10 to 0.400.90 to 1.20
0.90 to 1.20
0.10 to 0.40
0.10 to 0.40
S 1.00
S 1.001.50 to 2.50
1.00 to 2.00
d sulphur S 0.030%.
e-heat-treated condition192 HB.
% M n
0.35 to 0.65
0.65 to 0.95
0.50 to 1.50
0.15 to 0.450.25 to 0.55
0.25 to 0.55
0.15 to 0.45
0.15 to 0.45
S 1.00S 1.00
SS2.00
g 2.00
% C r
1.70 to 2.00
0.95 to 1.25
1.50 to 2.20
2.50 to 3.504.50 to 5.50
4.50 to 5.50
2.00 to 3.00
2.50 to 3.50
12.0 to 14.0
16.0 to 18.0
24.0 to 26.0
15.0 to 17.0
with a hardness of approximately 300 HB.
% Mo
0.40 to 0.60
0.30 to 0.50
0.40 to 0.60
2.50 to 3.001.20 to 1.70
1.20 to 1.70
% Ni
3.60 to 4.10
1.50 to 2.00
S 1.001.50 to 2.50
19.0 to 22.0
33.0 to 37.0
% V
0.05 to 0.25
0.05 to 0.25
0.40 to 0.700.30 to 0.50
0.85 to 1.15
0.40 to 0.70
0.30 to 0.50
w
4.50 to 5.10
8.50 to 9.50
Hardness(annealed)
max.HB
277
2483003
229229229235241223269
Hardening test2
Quenchingtemperature
C =: 10
850
8503
1 0401 020102010601 1501 0101 0001 1001 100
Quenchingmedium
Oil
Oil
OilOil
Oil
Oil
Oil
Oil
Oil
Wate r
Water
Temperingtemperature
C 10
500
5003
550550550600600550550
Hardnessmin.HRC
40
423
46484846483839
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Table 5
High-speed steelsChemical composition, temperature for hardening and hardness in the annealed or hardened and tempered conditions
Group
Basic types
IncreasedC + V content
IncreasedCo content
Increased C +V content + Co
IncreasedC content + Co
Type of steel '
HS 18-0-1HS 2-9-2HS 1-8-1HS 6-5-2
HS 6-5-3HS 6-5-4
HS 18-0-1-10HS 18-1-1-5HS 6-5-2-5
HS 12-1-5-5HS 10-4-3-10
HS 2-9-1-8HS 7-4-2-5
Chemical composition2
% C
0.73 to 0.830.95 to 1.050.77 to 0.870.82 to 0.92
1.15 to 1.301.25 to 1.40
0.75 to 0.850.75 to 0.850.85 to 0.95
1.40 to 1.551.20 to 1.35
1.05 to 1.201.05 to 1.20
% Co
I }
9.50 to 10.54.70 to 5.204.70 to 5.20
4.70 to 5.209.50 to 10.5
7.50 to 8.504.70 to 5.20
% Cr
3.50 to 4.503.50 to 4.503.50 to 4.503.50 to 4.50
3.50 to 4.503.50 to 4.50
3.50 to 4.503.50 to 4.503.50 to 4.50
3.50 to 4.503.50 to 4.50
3.50 to 41503.50 to 4.50
% Mo
s8.20 to 9.208.00 to 9.004.60 to 5.30
4.60 to 5.304.60 to 5.30
5
0.70 to 1.004.60 to 5.30
0.70 to 1.003.20 to 3.90
9.00 to 10.03.50 to 4.20
V
0.90 to 1.201.70 to 2.200.90 to 1.401.70 to 2.20
2.70 to 3.203.70 to 4.20
1.30 to 1.801.10 to 1.601.70 to 2.20
4.75 to 5.553.00 to 3.50
0.90 to 1.401.70 to 2.20
W
17.2 to 18.71.50 to 2.101.40 to 2.005.70 to 6.70
5.70 to 6.705.70 to 6.70
17.2 to 18.717.2 to 18.75.70 to 6.70
11.5 to 13.09.0 to 10.0
1.30 to 1.906.40 to 7.40
Hardness(annealed)
max.HB
269255255255
269277
293277269
293293
277277
Hardening test3
Quenchingtemperature
C 10
1 2601 2001 2101 220
1 2201 210
1 2801 2701 230
1 2401 230
1 1901 200
Quenchingmedium
OilOilOilOil
OilOil
OilOilOil
OilOil
OilOil
Temperingtemperature
C 10
560560560560
560560
560560560
560560
530540
Hardnessmin.HRC
63646364
6566
646464
6566
6666
1 Succession: W-Mo-V-Co.2 For all steels silicon S 0.50%, manganese S 0.40%, phosphorus S 0.030% and sulphur S 0.030%.3 See clause 4.2.3.4 A dash means that the corresponding alloying element shall not intentionally be added to the heat and that in the case of cobalt the content of the cast should be 1% Co.s A dash means that the corresponding alloying element shall not intentionally be added to the heat and that in the case of molybdenum the content of the cast should be S 0.7% Mo. ;
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Page 11
Table 5 a
High-speed steels
Permissible deviations between specified analysis (see Table 5) and product analysis
(See clause 3.5.2)
Type of steel
HS 18-0-1HS 2-9-2HS 1-8-1HS 6-5-2
HS 6-5-3HS 6-5-4
HS 18-0-1-10HS 18-1-1-5
HS 6-5-2-5HS 12-1-5-5HS 10-4-3-10
HS 2-9-1-8HS 7-4-2-5
Permissible deviations '
C
0.030.030.030.03
0.03D.03
0.030.03
0.030.040.03
0.030.03
Si
+ 0.03+ 0.03+ 0.03+ 0.03
+ 0.03+ 0.03
+ 0.03+ 0.03
+ 0.03+ 0.03+ 0.03
+ 0.03+ 0.03
Mn
+ 0.04+ 0.04+ 0.04+ 0.04
+ 0.04+ 0.04
+ 0.04+ 0.04
+ 0.04+ 0.04+ 0.04
+ 0.04+ 0.04
P
+ 0.005+ 0.005+ 0.005+ 0.005
+ 0.005+ 0.005
+ 0.005+ 0.005
+ 0.005+ 0.005+ 0.005
+ 0.005+ 0.005
s
+ 0.005+ 0.005+ 0.005+ 0.005
+ 0.005+ 0.005
+ 0.005+ 0.005
+ 0.005+ 0.005+ 0.005
+ 0.005+ 0.005
Co
0.150.10
0.100.100.15
0.100.10
Cr
0.100.100.100.10
0.100.10
0.100.10
0.100.10 0.10
0.100.10
Mo
0.100.100.10
0.100.10
0.05
0.100.050.10
0.100.10
V
0.050.070.050.07
0.100.10
0.050.05
0.070.100.10
0.050.07
w
0.20 0.070.050.10
0.100.10
0.200.20
0.10 0.150.10
0.050.10
1 The deviations, other than when maxima only are specified, apply either above or below the specified limits of the range but not both above and below for the same element fromdifferent samples from the same cast.When maxima only are specified the deviations are positive only.The values are valid only if the samples are selected in accordance with EURONORM 18 so that they represent the average com position of the cross-section of the product.
Table 6
Minimum machining allowances per side for bars with round, hexagonal or octagonal cross-section
(See clause 3.7.3)
Ordereddiameter
m m 1
S 16> 16 S 25> 25 40> 40 S 60> 60S 80> 80 S 100> 100 S 125> 125 S 150> 150 S 200> 200 S 250> 250 S 300> 300 S 400
Minimum machining allowance per side for
hot-rolled orcold-reduced2 bars
mm
0.50.81.21.62.02.53.24.05.06.0
hot-forged bars
mm
1.51.51.72.02.53.03.54.05.06.07.08.0
1 In the case of hexagons and octagons the distance across the flats is the ruling criterion.2 It should be noted that not all sizes mentioned in this table are available in the cold-reduced condition.
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Page 12
P
c-X
70
6"6
62
58
54P
= 501c
-o 4 6
4 2
38
3 4
3
Steel CT 70
Heat treatment800 C/water
j 11 1 I
0 100 200 30 0 400 500 60 0 70 0 800
Temper ing tempera ture in C
7 0
6 6
62
58
54
50
4 6
42
38
34
300
Y
\\
V\1
Steel CT 90
Heat treatment780 C/water
. . j I I _ j .,_.10 0 200 300 4O0 500 600 700 800
Temper ing tempera ture in C
7 0
6 6
62
5 8
54uPXcC
-oU i
50
4 6
42
38
3 4
30
cc-
Ucc
c-
7 0
6 6
62
5 8
54
50
4 6
4 2
38
3 4
3
,\
\\
Steel CT 80
Heat treatment790 C/water
L_J .J ,
-
0 100 200 30 0 400 500 600 700 800
Temper ing tempera ture in C
7 0
6 6
62
5 8
54
50
4 6
4 2
38
3 4
30
Steel CT 105
Heat treatment780 C/water
I, I _ j 1L_l I 1 110 0 200 300 400 500 600 700 800
Temper ing tempera ture in C
Steel CT 120
Heat treatment770 C/water
.... .. 1 . . . . . I _ j L_.L_0 100 200 300 400 500 60 0 70 0 800
Temper ing tempera ture in C
Fig. 1 Hardness-tempering temperature-curves for unalloyed cold-work tool steels(see table 2 and clause 3.6.3)
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Page 14
c
e
D
70
66
62
58
54
50
46
42
38
34
30
\
kVN
\\
- Steel 107 CrV 3
Heat treatment800 C/water
_ _l 1 I
S,V\
v\\ v
\,
100 200 300 400 500 600 700 8
Tempering temperature in C
cD
c
70
66
62
58
54
50
46
42
38
3 4
30
V s
\\
V\
- Steel 107 WC r 5
Heat treatment820 C/oil
_ ._ l . . . j
0 100 200 300 400 500 600 7 8
Tempering temperature in C
70
66
62
58
54
50
46X 42
38
3 4
uP
X
PD
Crt
D
30
- Steel 90 MnV 8
Heat treatment790 C/oil
0 100 20 0 300 400 500 600 700 8
Tempering temperature in C
70
66
62
58
54
50 46
42
38
34
30
Vl
s -^
-Steel X 100 CrMoV 5 1
Heat treatment970 C/air
. _ . . L _ L _ .1 _ - l ._j
s\
0 100 20 0 300 400 500 600 700 8
Tempering temperature in C
PD
c
pD
cu.rt
D
70
66
62
58
54
50
46
42
38
34
30
V NN
S , S,
,\
- Steel 95 MnW Cr 5
Heat treatment800 C/oil
J _ j ...0 100 200 300 400 500 600 700 8
Tempering temperature in C
/u66
62
58
54
5046
42
38
347
J
-Steel X 160 CrMoV 12 1
Heat treatment1 020 C/air
1 I L _ 1
\V\\\
0 100 200 300 400 500 600 700 8
Tempering temperature in C
Fig. 2b Hardness-tempering temperature-curves for alloyed cold-work tool steels(see table 3 and clause 3.6.3)
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Page 15
cD
e-
70
66
62
58
54uPD
t 50C3
Ui
46
42
38
34
30
^ sX
- Steel 210 Cr 12
Heat treatment970 C/oil
I J I _J_ J 1 1
ss,s \
0 100 200 300 400 500 600 700 8
Tempering temperature in C
70
66
62
58
54
50
46
DC 42
38
34h
30
- Steel X 21 Cr 13
Heat treatment1 010 "C/oil
_ j I . . .u_
\
^\\
\0 100 200 300 400 500 600 700 8
Tempering temperature in C
uPD
OJc
Ui
rtD
cD
c-o
U
D
70
66
62
58
54
5046
42
38
34h
30
-Steel 210 CrW12 1
Heat treatment970 C/oil
j I
- i\
V\\
0 100 200 300 400 500 600 700 800
Tempering temperature in C
/u66
62
58
54
50
46
42
38
34?n
--
- Steel X 31 Cr 13
Heat treatment
1 010 C/oil1 L_l
VV\1
\\\' 1V\\
0 100 200 300 400 500 600 700 800
Tempering temperature in C
Fig. 2c Hardness-tempering temperature-curves for alloyed cold-work tool steels(see table 3 and clause 3.6.3)
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Page 16
P
D
co
7
66
62
58
54
5
46
42
38
3 4 -
30
- Steel 41 Cr 13
" Heat treatment1 010 C/oil
J I ' ' '
Ss
0 100 200 300 400 500 600 700 800
Tempering temperature in C
70
6662
58
54
50
46
42
38
34
30
PD
cC
PD
c-
/u66
62
58
54
50
46
42
38
34?
r y
\
fSteel 38 CrMo 16 1
Heat treatment1 010 C/oil
. - j .. J ._.'
\\
\\\
0 100 200 300 400 500 600 700 800
Tempering temperature in "C
N|>
sfvs i
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Page 17
cD
c
UP
Dc
OJ
c
62
58
54
5046
fi
38
34?
\
-Steel 40 NiCrMoV 16
Heat treatment850 C/oil
i . . . j _ J _ J .... -
' S v\
\
1 2 3 4 5 6 7 8
Tempering temperature in C
7
66
62
58
54
5
46
42
38
34
3
-Steel 30 CrMoV 12 11
Heat treatment
1 040 C/oil_ . j
s.V
1\\
0 100 200 300 400 500 600 700 8
Tem pering temp erature in C
70
66
62
58
54
5046
42
38
34
30
oD
c
e
UcD
DC
70
66
62
58
54
50
46
42
38
34h
30
- Steel 55 NiCrMoV 7
Heat treatment850 C/oil
_ j L._
-
\
0 100 200 300 400 500 600 700 8
Tem pering temp erature in C
ucXcn
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Page 18
P
c-o
cD
70
66
62
58
54
50
46
42
38
34
-Steel X 30 WCrV 5 3
Heat treatment1 060 C/oil
_ l _ l .. . J -J
\\\\
0 1 2 3 4 5 6 7 8
Temper ing tempera ture in C
70
66
62
58
54
50
ra
t 42
38
34h3
- Steel X 21 Cr 13
Heat treatement1 010 C/oil
_ l _ l . _ k . ,
S\>l\\\
0 1 2 3 4 5 6 7 8
Tempering temperature in C
uPD C
cU i
,
70
66
62
58
54
5046
42
38
34
30
..
t Steel 30 WCrV 9 3
Heat treatment- 1 150 C/oil
1 1 I J
**-*
\)
1\\\
P
c-
100 200 300 400 500 600 700 800
Temper ing tempera ture in C
70
66
62
58
54
50
46
42
38
34
3
Steel X 22 C r N i 17
Heat t reatment1 000 "C/oil
-I I _J 0 1 2 3 4O 5 6 7 8
Temper ing tempera ture in C
Fig. 3b Hardness-temp ering temp erature-curves for hot-work tool steels(see table 4 and clause 3.6.3)
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Page 19
PD
c-D
68
64
60
56
52
48
44
41),
Steel HS 18-0-1
Heat treatment1 260 "C/oil
I II 1
)50' 30] /0( )0( 600 700Tempering temperature in "C
68
64
y 60P
* 5 6(
I 52rt
* 4 8
44LU
Steel HS 1-8-1
Heat treatment
1 210 "C/oil|f- 1 - 1-
\\\1
0 50 300 400 500 600
Tempering temperature in "C
700
0 50 300 400 500 60 1Tempering temperature in "C
0 50 300 400 500 600Tempering temperature in "C
0 50 300 400 500 600Tempering temp erature in C
68
64
y 60P 56
(
I 52u 4 8
44
4U(
Steel HS 6-5-4
Heat treatment1 210 "C/oil
II 1 1 1 1 1 1
)5o :01 k oc) 5o c) 6
N
0 0
s\\ V
\\
7 3
Tempering temperature in C
Fig. 4 a Hardness-tempering temperature-curves for high-speed steels(see table 5 and clause 3.6.3
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Page 20
c
e-o
0 50 300 4 5 6Temper ing tempera ture in C
UcD C
c-
68
64
60
56
52
48
44
40
Heat t reatment1 270 "C/oil
_L_IJ I I Ll I I
0 50 300 4 5 6
Temper ing tempera ture in C
UcX
c-
u.
rt
I
68
64
60
56
52
48
444U(
_ Steel HS 6-5-2-5
Heat treatment
1 230 C/oilII I I I I I 1
1 50 .301 / co c) 6 0 0
\\
73 0
68
64
60
56
52
48
4440
- Steel HS 12-1-5-5
Heat treatment
1 240 C/oill I I I I I 1
05 :30(] 4 0 0 coc) 6 0 0 7 0 0Tempering temperature in C Temper ing tempera ture in C
P
^ 5 6c
-o
0 50 300 4 5 6Temper ing tempera ture in C
68
64
gbU
s 56
1 5 2
48
44
4U(
- Steel HS 2-9-1-8
Heat treatment1 190 C/oil
II 1 1 1 1 1 1
)5 ' :30() k o c) 5o c) 6 0 0
\\\
3 0Temper ing tempera ture in C
Fig. 4b Hardness-tempering temperature-curves for high-speed steels(see table 5 and clause 3.6.3)
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Page 21
UcD
Cd
0 50 300 40 0 5 0 0 6 0 0 70 0Tempering temperature in C
Fig. 4c Hardness-tempering temperature-curves for high-speed steels(see table 5 and clause 3.6.3)
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A. Product diameter or thickness 2 15
Product
B. Product diameter or thickness < 15
Sample
Th e test piece shall according to the choice of the manufacturer
a) be either identical with the test sample,or
b) be taken from the sample by one cut as shown below,
A
ws15
zr_-_-^
or (c) be taken from the sample by two cuts as shown below.
rLO
Ml
w*15
J
-ou
erato
Sample
d
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Page 23
ANNEX
Comparison between the steel designations in this EURONORM and those in ISO DIS 4957
Steel designation
E U R O N O R M 96 ISO/DIS 495 7
Unalloyed cold-work tool steels
CT 70CT 80CT 90CT 105CT 120
12345
Alloyed cold-work tool steels
100 V 260 SiMn 751 CrMnV 445 WCrV 8
55 WCrV 8102 Cr 6107 CrV 3107 WCr 590 MnV 895 MnWCr 5X 100 CrMoV 51X 160 CrMoV 12 1X 210 Cr 12X 210 CrW 12 15 CrMo 16X 5 CrMo 5 17 CrNiMo 835 CrMo 8X 21 Cr 13X 3 1 Cr 13 41 Cr 13 38 CrMo 16 1 102 CrMo 17
10111213
14/1516171819202122232425262728293031
Hot-work tool steels
40 NiCrMoV 1655 NiCrMoV 735 CrMo 830 CrMoV 12 11X 37 CrMoV 5 1X 40 CrMoV 5 1 1X 30 WCrV 5 3X 30 WCrV 9 3X 21 Cr 13X 22 CrNi 17X 16 CrNiSi 25 20
X 13 NiCrSi 35 16
H lH 2H 3H 4H 5H 6H 7H 8
High-speed steels
HS 18-0-1HS 2-9-2HS 1-8-1HS 6-5-2HS 6-5-3HS 6-5-4HS 18-0-1-10HS 18-1-1-5HS 6-5-2-5HS 12-1-5-5HS 10-4-3-10HS 2-9-1-8HS 7-4-2-5
S 1S 2S 3S 4S 5
S 6S 7S 8S 9S 10S 11S 12
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