INTERNATIONAL ISO
STANDARD 11124-5
First edition
2019-06
Preparation of steel substrates before
application of paints and related
products — Specifications for metallic
blast-cleaning abrasives —
Part 5:
Cut steel wire
Préparation des subjectiles d'acier avant application de peintures
et de produits assimilés — Spécifications pour préparation par
projection d'abrasifs métalliques —
Partie 5: Fils d'acier coupés
Reference number
ISO 11124-5:2019(E)
© ISO 2019
ISO 11124-5:2019(E)
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ii © ISO 2019 – All rights reserved
ISO 11124-5:2019(E)
Contents Page
Foreword......................................................................................................................................................................................................................................... iv
1 Scope.................................................................................................................................................................................................................................. 1
2 Normative references....................................................................................................................................................................................... 1
3 Terms and definitions...................................................................................................................................................................................... 2
4 Designation of abrasives............................................................................................................................................................................... 3
5 Sampling......................................................................................................................................................................................................................... 3
6 Requirements for cut steel wire abrasives................................................................................................................................. 4
7 Package identification and lot traceability................................................................................................................................ 4
8 Information to be provided by the manufacturer or supplier............................................................................... 5
Annex A (informative) Approximately equivalent codings for cut steel wire abrasives.................................. 6
Bibliography................................................................................................................................................................................................................................. 7
© ISO 2019 – All rights reserved iii
ISO 11124-5:2019(E)
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. 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.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www.iso
.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 35, Paints and varnishes, Subcommittee
SC 12, Preparation of steel substrates before application of paints and related products.
A list of all parts in the ISO 11124 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
iv © ISO 2019 – All rights reserved
INTERNATIONAL STANDARD ISO 11124-5:2019(E)
Preparation of steel substrates before application of paints
and related products — Specifications for metallic blast-
cleaning abrasives —
Part 5:
Cut steel wire
1 Scope
This document specifies requirements for 13 grades of cut steel wire abrasives, as supplied for blast-
cleaning processes. It specifies ranges of particle sizes, together with corresponding grade designations.
Values are specified for hardness, density, defect/structural requirements, metallographic structure
and chemical composition.
This document is suitable for cut steel wire supplied for blast-cleaning processes which is made by
cutting new cold drawn wire.
The requirements specified in this document apply to abrasives manufactured from virgin wire supplied
in the new and unconditioned state only. They do not apply to abrasives either during or after use.
NOTE 1 Information on commonly referenced national standards for cut steel wire abrasives and their
approximate relationship with ISO 11124 is given in Annex A.
NOTE 2 Although this document has been developed specifically to meet requirements for preparation of
steelwork, the properties specified will generally be appropriate for use when preparing other material surfaces,
or components, using blast-cleaning techniques.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 439, Steel and iron — Determination of total silicon content — Gravimetric method
ISO 629, Steel and cast iron — Determination of manganese content — Spectrophotometric method
ISO 4935, Steel and iron — Determination of sulfur content — Infrared absorption method after combustion
in an induction furnace
ISO 9556, Steel and iron — Determination of total carbon content — Infrared absorption method after
combustion in an induction furnace
ISO 10714, Steel and iron — Determination of phosphorus content — Phosphovanadomolybdate
spectrophotometric method
ISO 11125-1, Preparation of steel substrates before application of paints and related products — Test
methods for metallic blast-cleaning abrasives — Part 1: Sampling
ISO 11125-3, Preparation of steel substrates before application of paints and related products — Test
methods for metallic blast-cleaning abrasives — Part 3: Determination of hardness
ISO 11125-4, Preparation of steel substrates before application of paints and related products — Test
methods for metallic blast-cleaning abrasives — Part 4: Determination of apparent density
© ISO 2019 – All rights reserved 1
ISO 11124-5:2019(E)
ISO 11125-5, Preparation of steel substrates before application of paints and related products — Test
methods for metallic blast-cleaning abrasives — Part 5: Determination of percentage defective particles
and of microstructure
ISO 11125-6, Preparation of steel substrates before application of paints and related products — Test
methods for metallic blast-cleaning abrasives — Part 6: Determination of foreign matter
ISO 11125-7, Preparation of steel substrates before application of paints and related products — Test
methods for metallic blast-cleaning abrasives — Part 7: Determination of moisture
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at http://www.electropedia.org/
3.1
cut steel wire
metallic blast-cleaning abrasive made by cutting cold drawn steel wire
3.2
virgin wire
wire which is unaltered from its original manufactured state, and which has not previously been used
as a component in any other manufactured product or composite material
Note 1 to entry: Wire which has been previously used poses a potential risk of imparting invisible contaminants
onto a prepared surface, which could have an adverse effect on the performance of subsequently applied coatings.
3.3
cylindrical
sharp-edged particles, having a diameter to length ratio of 1:1, cut so that their faces are approximately
at right angles to their centreline
3.4
defect
fault or weakness in an abrasive which, if present at or above a given level, can be detrimental to the
performance characteristics of the abrasive
Note 1 to entry: See Table 2.
3.5
over-length particles
particles of which the axial length to diameter ratio is equal to or greater than 2
3.6
crack
linear discontinuity that has a length-to-width ratio of 3:1 or greater, that extends over more than
20 % of the diameter or shortest dimension of a particle
3.7
foreign matter
material or particles mixed with the abrasive which are not attached to the abrasive particles and
which are nonmagnetic
2 © ISO 2019 – All rights reserved
ISO 11124-5:2019(E)
4 Designation of abrasives
Cut steel wire shall be identified by "Abrasive ISO 11124" and the abbreviation "M/CW", indicating
metallic, cut steel wire abrasive. The symbol “C” shall follow to indicate the required cylindrical particle
shape of the cut steel wire as purchased. The designation shall be completed by a 3-digit number
denoting the grade, or nominal particle size, required. Grade requirements and codes are specified in
Table 1. The grade code is based on the 3-digit number indicating the diameter of the wire, for each
grade, expressed in millimetres ×100. If alternative hardness of abrasive is available, the particular
Vickers hardness (HV) range required shall be specified (see Example 2).
EXAMPLE 1
Abrasive ISO 11124 M/CW/C100.
Denotes an abrasive of the metallic, cut steel wire type, conforming to the requirements of this document,
of cylindrical particle shape and grade 100 (i.e. nominal particle size 1,00 mm).
EXAMPLE 2
Abrasive ISO 11124 M/CW/C080/570-710HV.
Denotes an abrasive of the metallic, cut steel wire type, conforming with the requirements of this document,
of cylindrical particle shape and grade 080 (i.e. nominal particle size 0,80 mm), and with
a hardness range of 570 HV to 710 HV.
This full product designation shall be quoted on all orders.
NOTE Annex A provides guidance on approximately equivalent grades and codings in other commonly
referenced national standards for cut steel wire abrasives.
Table 1 — Mass specifications by grade — Cut steel wire
Grade code Nominal size Mass of N random Number of particles
particles (N)
mm g
C250 2,5 4,080 to 5,620
C200 2,0 2,050 to 2,920
C160 1,6 1,030 to 1,520
C140 1,4 0,680 to 1,030
C120 1,2 0,420 to 0,660
C100 1,0 0,260 to 0,400 N = 50
C090 0,9 0,190 to 0,260
C080 0,8 0,130 to 0,190
C070 0,7 0,080 to 0,130
C060 0,6 0,050 to 0,080
C050 0,5 0,030 to 0,050
C040 0,4 0,030 to 0,055
N = 100
C030 0,3 0,010 to 0,030
By agreement between interested, parties non-standard wire diameters can be used but mass tolerances should be
established as part of the specification.
5 Sampling
Sampling procedures shall be as specified in ISO 11125-1.
© ISO 2019 – All rights reserved 3
ISO 11124-5:2019(E)
6 Requirements for cut steel wire abrasives
The requirements for cut steel wire abrasives shall be as specified in Table 2.
Table 2 — Requirements of cut steel wire abrasives
Property Requirement Test method
Weighing random
Particle size See Table 1 particles to an ac-
curacy of 0,001 g
90 % of the particles tested shall have a hardness value within one of
the ranges specified below:
Standard hardnesses:
390 HV to 520 HV
470 HV to 610 HV
Hardness ISO 11125-3
570 HV to 710 HV
Equal or greater than 700 HV
Special hardnesses:
Other hardness ranges can be specified by both supply and demand sides,
with a minimum of 90 % of the particles within the regulation range.
Apparent
Min. 7,8 × 103 kg/m3 (7,8 g/cm3) ISO 11125-4
density
Defects present in the particles examined shall not exceed the follow-
ing levels:
Over-length particles: Max. 5 %
Defects Crack: Max. 5 % ISO 11125-5
Total defects: Max. 10 %
For the particles with more defects than above, the number should be
calculated only once in total defects.
Foreign matter Max. 0,5 % (mass fraction) ISO 11125-6
Metallographic Shall be the deformed sorbite. ISO 11125-5
structure
Chemical carbon 0,45 % (mass fraction) to 0,85 % (mass fraction) ISO 9556
composition manganese 0,30 % (mass fraction) to 1,30 % (mass fraction) ISO 629
silicon 0,15 % (mass fraction) to 0,35 % (mass fraction) ISO 439
sulfur Max. 0,050 % (mass fraction) ISO 4935
phosphorus Max. 0,040 % (mass fraction) ISO 10714
Moisture Max. 0,2 % (mass fraction) ISO 11125-7
NOTE The cut steel wire abrasives can be stored indoors in dry surroundings to prevent condensation, rusting and
deterioration of the abrasive, rendering it unsuitable for use.
7 Package identification and lot traceability
All supplies shall be clearly marked and identified using the designation system specified in Clause 4.
The unit of sale, i.e. commercial packaging unit, shall be clearly labelled with the full product coding,
including hardness range, if applicable.
Sub-units, i.e. bags, shall be marked with the particle shape and grade codes.
4 © ISO 2019 – All rights reserved
ISO 11124-5:2019(E)
Inclusion of additional marking to allow product traceability to a particular production period or lot
is recommended. Traceability references should be included at least at the pallet, drum or box level of
package marking.
8 Information to be provided by the manufacturer or supplier
The manufacturer or supplier shall provide, if requested, a test report detailing results for any relevant
property as determined by the appropriate method specified in Table 2.
© ISO 2019 – All rights reserved 5
ISO 11124-5:2019(E)
Annex A
(informative)
Approximately equivalent codings for cut steel wire abrasives
Commonly referenced national standards for metallic abrasives are based on different coding systems
for particle size range or grade.
Approximately equivalent codings in some of these national standards are shown in Table A.1 and the
nearest equivalent codings in ISO 11124 are shown alongside.
This list is informative and should not be taken as indicating that grades are equal. It covers the full
range of the ISO 11124 series codings. This document might not contain all the codings listed.
The ISO 11124 series size limits are identical with those specified in GB/T 18838.5-2015.
Table A.1 — Approximately equivalent codings
SAE J441:2013 GB/T 18838.5-2015 ISO Coding
CW-96 M/CW/C/250 C250
CW-80 M/CW/C/200 C200
CW-62 M/CW/C/160 C160
CW-54 M/CW/C/140 C140
CW-47 M/CW/C/120 C120
CW-41 M/CW/C/100 C100
CW-35 M/CW/C/090 C090
Grade code
CW-32 M/CW/C/080 C080
CW-28 M/CW/C/070 C070
CW-23 M/CW/C/060 C060
CW-20 M/CW/C/050 C050
CW-17 M/CW/C/040 C040
CW-14 — —
CW-12 M/CW/C/030 C030
6 © ISO 2019 – All rights reserved
ISO 11124-5:2019(E)
Bibliography
[1] SAE J441:2013, Cut wire shot
[2] GB/T 18838.5-2015, Preparation of steel substrates before application of paints and related
products — Specifications for metallic blast-cleaning abrasives — Part 5: Cut steel wire
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ISO 11124-5:2019(E)
ICS 25.220.10
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