ISO 23519:2010

Sintered metal materials, excluding hardmetals - Measurement of surface roughness

ISO 23519:2010 specifies a method to determine the surface roughness of sintered parts of metal materials. It also establishes principles for the use of the suitable parameters for measurement.

Matériaux métalliques frittés, à l'exclusion des métaux-durs — Mesurage de la rugosité de surface

General Information

• Status: Published
• Publication Date: 30-May-2010
• ICS: 77.160 - Powder metallurgy
• Technical Committee: ISO/TC 119/SC 3 - Sampling and testing methods for sintered metal materials (excluding hardmetals)
• Drafting Committee: ISO/TC 119/SC 3 - Sampling and testing methods for sintered metal materials (excluding hardmetals)
• Current Stage: 9093 - International Standard confirmed
• Start Date: 10-Dec-2025
• Completion Date: 13-Dec-2025

Overview

ISO 23519:2010 - "Sintered metal materials, excluding hardmetals - Measurement of surface roughness" defines a standardized method to measure and report surface roughness of sintered metal parts. The standard addresses the effect of porosity and surface texture unique to powder metallurgy and prescribes measurement parameters and reporting conventions to ensure meaningful, comparable roughness data for sintered components.

Key topics and requirements

• Scope: Measurement method and principles for selecting suitable surface roughness parameters for sintered materials (excluding hardmetals).
• Filtered profile: Always use a filtered (roughness) profile with the standard Gaussian filter.
• Cut-off and evaluation length: Default cut-off = 0.8 mm and total evaluation length = 4 mm (5 × cut-off).
  • If Ra > 4.0 µm, increase cut-off to 2.5 mm and evaluation length to 12.5 mm.
• Stylus probe: Use a probe with a 2 µm radius to resolve surface irregularities on sintered parts.
• Depth exclusion: Do not consider the first 5% of depth in measurements (to avoid artefacts from edge effects or initial pore influence).
• Recommended parameters: Report results primarily in Rk (core roughness depth) and Rpk (reduced peak height) - these better characterise stratified surfaces with open porosity.
• Parameters to avoid: Metrics that are strongly affected by porosity and pore depth - Rp, Rv, Rz, Rt, Ra, Rq, Rs, RSm - are not recommended for sintered materials because they conflate surface topography with open-porosity effects.
• Reporting precision: Results should be reported in Rpk (and Rk) to the nearest 0.1 µm.

Applications and users

ISO 23519:2010 is targeted at professionals involved in quality control, metrology and product development for powder metallurgy and sintered components. Typical users include:

• Quality engineers and inspection labs performing profilometer-based roughness measurements
• Production engineers optimizing sintering, sizing and surface finishing processes
• Materials and process engineers assessing functional surface properties (wear, lubrication retention, sealing)
• OEMs and suppliers of sintered parts in automotive, industrial machinery, bearings and filtration industries

Practical benefits include consistent roughness data for acceptance testing, improved correlation between surface finish and functional performance, and reduced measurement variability caused by porosity.

Related standards

• ISO 4287 - Surface texture: Profile method - Terms and parameters
• ISO 13565-1, ISO 13565-2, ISO 13565-3 - Surface texture for stratified functional properties (filtering and height-characterization methods)
• Other GPS/profile standards referenced for instrument and filtering requirements (e.g., ISO 3274, ISO 4288)

Keywords: ISO 23519:2010, sintered metal materials, surface roughness measurement, Rpk, Rk, powder metallurgy, profilometer, porosity, ISO 13565, ISO 4287.

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 23519
First edition
2010-06-01
Sintered metal materials, excluding
hardmetals — Measurement of surface
roughness
Matériaux métalliques frittés, à l'exclusion des métaux-durs —
Mesurage de la rugosité de surface

Reference number
©
ISO 2010
PDF disclaimer
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©  ISO 2010
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
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ii © ISO 2010 – All rights reserved

Contents Page
Foreword .iv
1 Scope.1
2 Normative references.1
3 Terms and definitions .1
4 Symbols and units.2
5 Principle.2
6 Procedure.3
7 Expression of results.4
Bibliography.5

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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
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.
ISO 23519 was prepared by Technical Committee ISO/TC 119, Powder metallurgy, Subcommittee SC 3,
Sampling and testing methods for sintered metal materials (excluding hardmetals).

iv © ISO 2010 – All rights reserved

INTERNATIONAL STANDARD ISO 23519:2010(E)

Sintered metal materials, excluding hardmetals — Measurement
of surface roughness
1 Scope
This International Standard specifies a method to determine the surface roughness of sintered parts of metal
materials. It also establishes principles for the use of the suitable parameters for measurement.
2 Normative references
The following referenced documents are indispensable for the application 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 4287, Geometrical Product
...

DRAFT INTERNATIONAL STANDARD ISO/DIS 23519
ISO/TC 119/SC 3 Secretariat: DIN
Voting begins on: Voting terminates on:
2008-11-28 2009-04-28
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION • МЕЖДУНАРОДНАЯ ОРГАНИЗАЦИЯ ПО СТАНДАРТИЗАЦИИ • ORGANISATION INTERNATIONALE DE NORMALISATION
Sintered metal materials, excluding hardmetals — Measurement
of surface roughness
Matériaux métalliques frittés, à l'exclusion des métaux-durs — Mesurage de la rugosité de surface
ICS 77.160
In accordance with the provisions of Council Resolution 15/1993 this document is circulated in
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THIS DOCUMENT IS A DRAFT CIRCULATED FOR COMMENT AND APPROVAL. IT IS THEREFORE SUBJECT TO CHANGE AND MAY NOT BE
REFERRED TO AS AN INTERNATIONAL STANDARD UNTIL PUBLISHED AS SUCH.
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INTERNATIONAL STANDARDS MAY ON OCCASION HAVE TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL TO BECOME STANDARDS TO
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THEY ARE AWARE AND TO PROVIDE SUPPORTING DOCUMENTATION.
©
International Organization for Standardization, 2008

ISO/DIS 23519
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not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In
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accepts no liability in this area.
Adobe is a trademark of Adobe Systems Incorporated.
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unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below.
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Violators may be prosecuted.
©
ii ISO 2008 – All rights reserved

ISO/DIS 23519
Contents Page
Foreword .iv
1 Scope.1
2 Normative References.1
3 Symbols and Units .1
4 Principle.2
5 Procedure.2
6 Expression of results.3
Bibliography.4

ISO/DIS 23519
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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
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 rig
...

МЕЖДУНАРОДНЫЙ ISO
СТАНДАРТ 23519
Первое издание
2010-06-01
Материалы металлические спеченные,
исключая твердые сплавы. Измерение
шероховатости поверхности
Sintered metal materials, excluding hard metals. Measurement of
surface roughness
Ответственность за подготовку русской версии несѐт GOST R
(Российская Федерация) в соответствии со статьѐй 18.1 Устава ISO

Ссылочный номер
©
ISO 2010
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Опубликовано в Швейцарии
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Содержание Страница
Предисловие. iv
1 Область применения . 1
2 Нормативные ссылки . 1
3 Термины и определения . 1
4 Символы и единицы измерения . 2
5 Принцип . 2
6 Методика . 3
7 Выражение результатов . 4
Библиография . 5

Предисловие
Международная организация по стандартизации (ISO) является всемирной федерацией национальных
организаций по стандартизации (комитетов-членов ISO). Разработка международных стандартов
обычно осуществляется техническими комитетами ISO. Каждый комитет-член, заинтересованный в
деятельности, для которой был создан технический комитет, имеет право быть представленным в этом
комитете. Международные правительственные и неправительственные организации, имеющие связи с
ISO, также принимают участие в работах. Что касается стандартизации в области электротехники, то
ISO работает в тесном сотрудничестве с Международной электротехнической комиссией (IEC).
Проекты международных стандартов разрабатываются в соответствии с правилами Директив ISO/IEC,
Часть 2.
Основной задачей технических комитетов является подготовка международных стандартов. Проекты
международных стандартов, принятые техническими комитетами, рассылаются комитетам-членам на
голосование. Их опубликование в качестве международных стандартов требует одобрения не менее
75 % комитетов-членов, принимающих участие в голосовании.
Следует иметь в виду, что некоторые элементы настоящего международного стандарта могут быть
объектом патентных прав. Международная организация по стандартизации не может нести
ответственность за идентификацию какого-либо одного или всех патентных прав.
ISO 23519 подготовил Технический комитет ISO/TC 119, Порошковая металлургия, Подкомитет SC 3,
Отбор образцов и методы испытаний спеченных металлических материалов (исключая твердые
сплавы).
iv © ISO 2010 – Все права сохраняются

МЕЖДУНАРОДНЫЙ СТАНДАРТ ISO 23519:2010(R)

Материалы металлические спеченные, исключая твердые
сплавы. Измерение шероховатости поверхности
1 Область применения
Настоящий международный стандарт задает метод определения шероховатости на поверхности
спеченных частей металлических материалов. Он также устанавливает принципы использования
подходящих параметров для измерения.
2 Нормативные ссылки
Следующие ссылочные документы являются обязательными для применения настоящего документа.
Для устаревших ссылок применяется только цитируемое издание. Для недатированных ссылок
применяется самое последнее издание ссылочного документа (включая поправки).
ISO 4287, Геометрические характеристики изделий (GPS). Структура поверхности: Профильный
метод. Термины, определения и параметры структура поверхности
ISO 13565-1, Геометрические характеристики изделий (GPS). Структура поверхности:
Профильный метод. Поверхности с послойным распределением функциональных свойств. Часть 1.
Фильтрация и общие условия измерений
ISO 13565-2, Геометрические характеристики изделий (GPS). Структура поверхности:
Профильный метод. Поверхности с послойным распределением функциональных свойств. Часть 2.
Характеристика слоев методом выделения линейного участка на
...