EN ISO 5755:2012
(Main)Sintered metal materials - Specifications (ISO 5755:2012)
Sintered metal materials - Specifications (ISO 5755:2012)
ISO 5755:2012 specifies the requirements for the chemical composition and the mechanical and physical properties of sintered metal materials used for bearings and structural parts.
When selecting powder metallurgical (PM) materials, it should be taken into account that the properties depend not only on the chemical composition and density, but also on the production methods. The properties of sintered materials giving satisfactory service in particular applications may not necessarily be the same as those of wrought or cast materials that might otherwise be used. Therefore, liaison with prospective suppliers is recommended.
Sintermetalle - Anforderungen (ISO 5755:2012)
Diese Internationale Norm legt die Anforderungen an die chemische Zusammensetzung sowie die mechanischen und physikalischen Eigenschaften von Sintermetallen für Lager und Formteile fest.
Bei der Auswahl der pulvermetallurgischen (PM) Werkstoffe sollte berücksichtigt werden, dass die Eigenschaften nicht nur von der chemischen Zusammensetzung und Dichte, sondern auch von den Herstellverfahren abhängig sind. Die Eigenschaften von Sinterwerkstoffen, die sich für besondere Anwendungsfälle eignen, sind nicht unbedingt die gleichen wie die von geschmiedeten oder gegossenen Werkstoffen, die auch verwendet werden könnten. Es wird deshalb empfohlen, mit den künftigen Lieferern zusammenzuarbeiten.
Matériaux métalliques frittés - Spécifications (ISO 5755:2012)
L'ISO 5755:2012 spécifie les exigences relatives à la composition chimique et aux propriétés physiques et mécaniques des matériaux métalliques frittés utilisés pour les paliers et les pièces mécaniques.
Lors de la sélection de poudres métalliques, il est nécessaire de tenir compte du fait que leurs propriétés ne sont pas seulement fonction de la composition chimique et de la masse volumique, mais aussi des méthodes d'élaboration. Les propriétés des matériaux frittés donnant satisfaction pour des applications particulières peuvent ne pas être nécessairement les mêmes que celles de matériaux moulés ou corroyés qui pourraient être utilisés concurremment. Il est donc recommandé de prendre contact avec les fournisseurs pressentis.
Sintrane kovine - Specifikacije (ISO 5755:2012)
Ta mednarodni standard določa zahteve za kemično sestavo ter mehanske in fizične lastnosti sintranih kovinskih materialov za nosilce in strukturne dele. Pri izbiri materialov za prašno metalurgijo je priporočljivo upoštevati, da lastnosti niso odvisne samo od kemične sestave in gostote, ampak tudi od načinov proizvodnje. Lastnosti sintranih materialov, ki ustrezajo določeni uporabi, morda niso enake kot lastnosti obdelanih ali livarskih materialov, ki se lahko sicer uporabljajo. Zato je priporočljiv kontakt z morebitnimi dobavitelji.
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Sintrane kovine - Specifikacije (ISO 5755:2012)Sintermetalle - Anforderungen (ISO 5755:2012)Matériaux métalliques frittés - Spécifications (ISO 5755:2012)Sintered metal materials - Specifications (ISO 5755:2012)77.160Metalurgija prahovPowder metallurgyICS:Ta slovenski standard je istoveten z:EN ISO 5755:2012SIST EN ISO 5755:2012en,fr01-november-2012SIST EN ISO 5755:2012SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN ISO 5755
September 2012 ICS 77.160 English Version
Sintered metal materials - Specifications (ISO 5755:2012)
Matériaux métalliques frittés - Spécifications (ISO 5755:2012)
Sintermetalle - Anforderungen (ISO 5755:2012) This European Standard was approved by CEN on 25 August 2012.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre 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 own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 5755:2012: ESIST EN ISO 5755:2012
Reference numberISO 5755:2012(E)© ISO 2012
INTERNATIONAL STANDARD ISO5755Third edition2012-09-01Sintered metal materials — SpecificationsMatériaux métalliques frittés — Spécifications
ISO 5755:2012(E)
©
ISO 2012 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISO's member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel.
+ 41 22 749 01 11 Fax
+ 41 22 749 09 47 E-mail
copyright@iso.org Web
www.iso.org Published in Switzerland
ii © ISO 2012 – All rights reserved
ISO 5755:2012(E) © ISO 2012 – All rights reserved iii Contents Page Foreword . iv 1 Scope . 1 2 Normative references . 1 3 Terms and definitions . 2 4 Sampling . 3 5 Test methods for normative properties . 3 5.1 General . 3 5.2 Chemical analysis . 3 5.3 Open porosity . 3 5.4 Mechanical properties . 4 6 Test methods for informative properties . 5 6.1 General . 5 6.2 Density . 5 6.3 Tensile strength . 5 6.4 Tensile yield strength . 5 6.5 Elongation . 5 6.6 Young’s modulus . 5 6.7 Poisson’s ratio . 5 6.8 Impact energy . 6 6.9 Compressive yield strength . 6 6.10 Transverse rupture strength . 6 6.11 Fatigue strength . 6 6.12 Apparent hardness . 7 6.13 Coefficient of linear expansion . 7 7 Specifications . 7 8 Designations . 7 Annex A (normative)
Designation system . 33 Annex B (informative)
Microstructures . 36 Bibliography . 39
ISO 5755:2012(E) iv © ISO 2012 – All rights reserved 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 5755 was prepared by Technical Committee ISO/TC 119, Powder metallurgy, Subcommittee SC 5, Specifications for powder metallurgical materials (excluding hardmetals). This third edition cancels and replaces the second edition (ISO 5755:2001), which has been technically revised.
INTERNATIONAL STANDARD ISO 5755:2012(E) © ISO 2012 – All rights reserved 1 Sintered metal materials — Specifications 1 Scope This International Standard specifies the requirements for the chemical composition and the mechanical and physical properties of sintered metal materials used for bearings and structural parts. When selecting powder metallurgical (PM) materials, it should be taken into account that the properties depend not only on the chemical composition and density, but also on the production methods. The properties of sintered materials giving satisfactory service in particular applications may not necessarily be the same as those of wrought or cast materials that might otherwise be used. Therefore, liaison with prospective suppliers is recommended. 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 437, Steel and cast iron — Determination of total carbon content — Combustion gravimetric method ISO 1099, Metallic materials — Fatigue testing — Axial force-controlled method ISO 1143, Metallic materials — Rotating bar bending fatigue testing ISO 2738, Sintered metal materials, excluding hardmetals — Permeable sintered metal materials — Determination of density, oil content and open porosity ISO 2739, Sintered metal bushings — Determination of radial crushing strength ISO 2740, Sintered metal materials, excluding hardmetals — Tensile test pieces ISO 2795, Plain bearings — Sintered bushes — Dimensions and tolerances ISO 3325, Sintered metal materials, excluding hardmetals — Determination of transverse rupture strength ISO 3928, Sintered metal materials, excluding hardmetals — Fatigue test pieces ISO 3954, Powders for powder metallurgical purposes — Sampling ISO 4498, Sintered metal materials, excluding hardmetals — Determination of apparent hardness and micro-hardness ISO 5754, Sintered metal materials, excluding hardmetals — Unnotched impact test piece ISO 6892-1, Metallic materials — Tensile testing — Part 1: Method of test at room temperature ISO 7625, Sintered metal materials, excluding hardmetals — Preparation of samples for chemical analysis for determination of carbon content SIST EN ISO 5755:2012
ISO 5755:2012(E) 2 © ISO 2012 – All rights reserved ISO 14317, Sintered metal materials, excluding hardmetals — Determination of compressive yield strength ASTM E228, Standard Test Method for Linear Thermal Expansion of Solid Materials with a Push-Rod Dilatometer ASTM E1875, Standard Test Method for Dynamic Young’s Modulus, Shear Modulus, and Poisson’s Ratio by Sonic Resonance 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 tensile strength Rm ability of a test specimen to resist fracture when a pulling force is applied in a direction parallel to its longitudinal axis – expressed in MPa NOTE It is equal to the maximum load divided by the original cross-sectional area. 3.2 tensile yield strength Rp0,2 load at which the material exhibits a 0,2 % offset from proportionality on a stress-strain curve in tension, divided by the original cross-sectional area – expressed in MPa 3.3 Young’s modulus E ratio of normal stress to corresponding strain for tensile or compressive stresses below the proportional limit of the material – expressed in GPa 3.4 Poisson’s ratio v absolute value of the ratio of transverse strain to the corresponding axial strain, resulting from uniformally distributed axial stress below the proportional limit of the material 3.5 impact energy measurement of the energy absorbed when fracturing a specimen with a single blow – measured in Joules (J) 3.6 compressive yield strength stress at which a material exhibits a specified permanent set – expressed in MPa 3.7 transverse rupture strength stress, calculated from the bending strength formula, required to break a specimen of a given dimension – expressed in MPa 3.8 fatigue strength maximum alternating stress that can be sustained for a specific number of cycles without failure, the stress being reversed with each cycle unless
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.