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CEN

EN ISO 898-3:2018/A1:2021

(Amendment)

Mechanical properties of fasteners made of carbon steel and alloy steel - Part 3: Flat washers with specified property classes - Amendment 1 (ISO 898-3:2018/Amd 1:2020)

Mechanical properties of fasteners made of carbon steel and alloy steel - Part 3: Flat washers with specified property classes - Amendment 1 (ISO 898-3:2018/Amd 1:2020)

Mechanische Eigenschaften von Verbindungselementen aus Kohlenstoffstahl und legiertem Stahl - Teil 3: Flache Scheiben mit festgelegten Festigkeitsklassen - Änderung 1 (ISO 898-3:2018/Amd 1:2021)

No scope available

Caractéristiques mécaniques des fixations en acier au carbone et en acier allié - Partie 3: Rondelles de forme plane de classes de qualité spécifiées - Amendement 1 (ISO 898-3:2018/Amd 1:2020)

Mehanske lastnosti veznih elementov, narejenih iz ogljikovega jekla in jeklene zlitine - 3. del: Ploščate podložke z določenimi razredi trdnosti - Dopolnilo A1 (ISO 898-3:2018/Amd 1:2020)

General Information

Status
Published
Publication Date
18-May-2021
Withdrawal Date
29-Nov-2021
ICS
21.060.20 - Nuts
Technical Committee
CEN/TC 185 - Threaded and nonthreaded mechanical fasteners and accessories
Drafting Committee
CEN/TC 185 - Threaded and nonthreaded mechanical fasteners and accessories
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
19-May-2021
Completion Date
19-May-2021
Ref Project
SIST EN ISO 898-3:2018/A1:2021 - Mechanical properties of fasteners made of carbon steel and alloy steel - Part 3: Flat washers with specified property classes - Amendment 1 (ISO 898-3:2018/Amd 1:2020)

Relations

Amends
EN ISO 898-3:2018 - Mechanical properties of fasteners made of carbon steel and alloy steel - Part 3: Flat washers with specified property classes (ISO 898-3:2018)
Effective Date
02-Oct-2019

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EN ISO 898-3:2018/A1:2021EN ISO 898-3:2018/A1:2021
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EN ISO 898-3:2018/A1:2021
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Standards Content (Sample)


SLOVENSKI STANDARD
01-julij-2021
Mehanske lastnosti veznih elementov, narejenih iz ogljikovega jekla in jeklene
zlitine - 3. del: Ploščate podložke z določenimi razredi trdnosti - Dopolnilo A1 (ISO
898-3:2018/Amd 1:2020)
Mechanical properties of fasteners made of carbon steel and alloy steel - Part 3: Flat
washers with specified property classes - Amendment 1 (ISO 898-3:2018/Amd 1:2020)
Mechanische Eigenschaften von Verbindungselementen aus Kohlenstoffstahl und
legiertem Stahl - Teil 3: Flache Scheiben mit festgelegten Festigkeitsklassen -
ÄNDERUNG 1 (ISO 898-3:2018/Amd 1:2020)
Caractéristiques mécaniques des fixations en acier au carbone et en acier allié - Partie
3: Rondelles de forme plane de classes de qualité spécifiées - Amendement 1 (ISO 898-
3:2018/Amd 1:2020)
Ta slovenski standard je istoveten z: EN ISO 898-3:2018/A1:2021
ICS:
21.060.30 Podložke, varovalni elementi Washers, locking elements
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 898-3:2018/A1
EUROPEAN STANDARD
NORME EUROPÉENNE
May 2021
EUROPÄISCHE NORM
ICS 21.060.20
English Version
Mechanical properties of fasteners made of carbon steel
and alloy steel - Part 3: Flat washers with specified
property classes - Amendment 1 (ISO 898-3:2018/Amd
1:2020)
Caractéristiques mécaniques des fixations en acier au Mechanische Eigenschaften von
carbone et en acier allié - Partie 3: Rondelles de forme Verbindungselementen aus Kohlenstoffstahl und
plane de classes de qualité spécifiées - Amendement 1 legiertem Stahl - Teil 3: Flache Scheiben mit
(ISO 898-3:2018/Amd 1:2020) festgelegten Festigkeitsklassen - Änderung 1 (ISO 898-
3:2018/Amd 1:2020)
This amendment A1 modifies the European Standard EN ISO 898-3:2018; it was approved by CEN on 11 January 2021.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of
this amendment into the relevant 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 amendment 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 898-3:2018/A1:2021 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 898-3:2018/A1:2021) has been prepared by Technical Committee ISO/TC 2
"Fasteners" in collaboration with Technical Committee CEN/TC 185 “Fasteners” the secretariat of which
is held by BSI.
This Amendment to the European Standard EN ISO 898-3:2018 shall be given the status of a national
standard, either by publication of an identical text or by endorsement, at the latest by November 2021,
and conflicting national standards shall be withdrawn at the latest by November 2021.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Ma
...

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—     with thread tolerances in accordance with ISO 965‑1 and ISO 965‑2,
—     with specified property classes, including proof load,
—     with different nut styles: thin nuts, regular nuts and high nuts,
—     with a minimum nut height m ≥ 0,45D,
—     with a minimum outside diameter or width across flats s ≥ 1,45D (see Annex A),
—     of any shape, and
—     able to mate with bolts, screws and studs with property classes in accordance with ISO 3506‑1.
Stainless steel grades and property classes can be used for sizes outside the diameter limits of this document (i.e. for D < 5 mm or D > 39 mm), provided that all applicable chemical, mechanical and physical requirements are met.
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[1] Under preparation.

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SIST EN ISO 898-3:2018

This document specifies mechanical and physical properties of flat washers, designed to be used in bolted joints in combination with bolts, screws, studs and nuts with a specified property class in accordance with ISO 898‑1 and ISO 898‑2.
NOTE 1    These types of washers can also be used with other fasteners such as screws forming their own mating thread.
Washers that conform to the requirements of this document are evaluated at an ambient temperature range of 10 °C to 35 °C. They might not retain the specified mechanical and physical properties at elevated temperatures and/or lower temperatures.
NOTE 2    Washers conforming to the requirements of this document are used in applications ranging from −50 °C to +150 °C. Users are advised to consult an experienced fastener expert for temperatures outside this range and up to a maximum temperature of +300 °C when determining appropriate choices, or for critical applications.
This document is applicable to the following flat captive and non-captive washers made of carbon steel or alloy steel, with thickness from 0,2 mm to 12 mm:
—          plain washers (with or without knurls, ribs or chamfers);
—          square washers;
—          square hole washers;
—          shaped plates.
It does not specify requirements for the following properties:
—          corrosion resistance;
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EN ISO 2320:2015(Main)
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ISO 2320:2015 specifies the functional properties for prevailing torque steel nuts when tested at an ambient temperature range of +10 °C to +35 °C. It includes a combined test method to determine the prevailing torque properties and the torque/clamp force properties at the same time.
It applies to prevailing torque all metal type nuts and prevailing torque non-metallic insert type nuts:
-      with triangular ISO thread in accordance with ISO 68‑1;
-      with diameter/pitch combination in accordance with ISO 261 and ISO 262;
-      with coarse pitch thread M5 to M39 or with fine pitch thread M8 × 1 to M39 × 3;
-      with thread tolerances in accordance with ISO 965-2;
-      with mechanical properties in accordance with ISO 898‑2;
Prevailing torque values specified in this standard are based on laboratory test conditions.
NOTE 1       Actual prevailing torques in practical application can vary.
NOTE 2       All metal type nuts conforming to the requirements of this International Standard are used in applications ranging from −50 °C to +150 °C.
NOTE 3       Non-metallic insert type nuts conforming to the requirements of this International Standard are used in applications ranging from −50 °C to +120 °C.
WARNING ? Temperatures outside the ambient temperature range can influence the functional properties (torque/clamp force and prevailing torque properties), see Annex A.

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