EN ISO 898-5:1998

Mechanical properties of fasteners made of carbon steel and alloy steel - Part 5: Set screws and similar threaded fasteners not under tensile stresses (ISO 898-5:1998)

This part  of ISO 898 specifies the mechanical properties of set screws and similar threaded fasteners not under tensile stresses with nominal thread diameters from 1,6 mm up to  including 24 mm, which are made of carbon stell or alloy steel.   The mechanical  and physical properties apply when tested at an ambient temperature of 10 øC to 35 øC and will vary at higher or lower temperatures.  This part of ISO 898 does not apply to set screws requiring special properties such as   - specified tensile stresses (see also 989-1);  - weldability;  - corrosion resistance;  - ability to withsland temparatures above + 300 øC or below - 50 øC.  NOTE: Set screws made from free-cutting steel should not be used above  + 250 øC.

Mechanische Eigenschaften von Verbindungselementen aus Kohlenstoffstahl und legiertem Stahl - Teil 5: Gewindestifte und ähnliche nicht auf Zug beanspruchte Verbindungselemente (ISO 898-5:1998)

Dieser Teil von ISO 898 legt die mechanischen Eigenschaften für Gewindestifte und ähnliche nicht auf Zug beanspruchte Verbindungselemente aus Kohlenstoffstahl oder legiertem Stahl mit Gewinde Nenndurchmesser von 1,6 mm bis 39 mm fest.
Die mechanischen und physikalischen Eigenschaften gelten bei Prüfung bei einer Umgebungstemperatur von 10 °C bis 35 °C und ändern sich bei höherer oder tieferer Temperatur.
Dieser Teil von ISO 898 gilt nicht für Gewindestifte mit besonderen Eigenschaften wie
   festgelegte Zugfestigkeit (siehe ISO 898-1),
   Schweißbarkeit,
   Korrosionsbeständigkeit oder
   Warmfestigkeit über 300 °C oder Kaltzähigkeit unter 50 °C.
ANMERKUNG   Gewindestifte aus Automatenstahl sollten nicht oberhalb +250 °C eingesetzt werden

Caractéristiques mécaniques des éléments de fixation en acier au carbone et en acier allié - Partie 5: Vis sans tête et éléments de fixation filetés similaires non soumis à des contraintes de traction (ISO 898-5:1998)

Mehanske lastnosti veznih elementov iz ogljikovega in legiranega jekla - 5. del: Navojni zatiči in podobni vijaki, ki niso natezno obremenjeni (ISO 898-5:1998)

General Information

• Status: Withdrawn
• Publication Date: 31-Jul-1998
• Withdrawal Date: 27-Feb-1999
• ICS: 21.060.10 - Bolts, screws, studs
• 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: 9960 - Withdrawal effective - Withdrawal
• Start Date: 01-Jun-2012
• Completion Date: 01-Jun-2012
• Directive: 97/23/EC - Directive 97/23/EC of the European Parliament and of the Council of 29 May 1997 on the approximation of the laws of the Member States concerning pressure equipment
• Mandate: M/071 - Mandate to CEN for standardization in the field of Pressure equipment
• Ref Project: SIST EN ISO 898-5:2001 - Mechanical properties of fasteners made of carbon steel and alloy steel - Part 5: Set screws and similar threaded fasteners not under tensile stresses (ISO 898-5:1998)

Relations

• Replaced By: EN ISO 898-5:2012 - Mechanical properties of fasteners made of carbon steel and alloy steel - Part 5: Set screws and similar threaded fasteners with specified hardness classes - Coarse thread and fine pitch thread (ISO 898-5:2012)
• Effective Date: 13-Jun-2012

Standards Content (Sample)

SLOVENSKI STANDARD
01-julij-2001
0HKDQVNHODVWQRVWLYH]QLKHOHPHQWRYL]RJOMLNRYHJDLQOHJLUDQHJDMHNODGHO
1DYRMQL]DWLþLLQSRGREQLYLMDNLNLQLVRQDWH]QRREUHPHQMHQL,62
Mechanical properties of fasteners made of carbon steel and alloy steel - Part 5: Set
screws and similar threaded fasteners not under tensile stresses (ISO 898-5:1998)
Mechanische Eigenschaften von Verbindungselementen aus Kohlenstoffstahl und
legiertem Stahl - Teil 5: Gewindestifte und ähnliche nicht auf Zug beanspruchte
Verbindungselemente (ISO 898-5:1998)
Caractéristiques mécaniques des éléments de fixation en acier au carbone et en acier
allié - Partie 5: Vis sans tete et éléments de fixation filetés similaires non soumis a des
contraintes de traction (ISO 898-5:1998)
Ta slovenski standard je istoveten z: EN ISO 898-5:1998
ICS:
21.060.10 Sorniki, vijaki, stebelni vijaki Bolts, screws, studs
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

INTERNATIONAL ISO
STANDARD 898-5
Second edition
1998-08-01
Mechanical properties of fasteners made
of carbon steel and alloy steel —
Part 5:
Set screws and similar threaded fasteners not
under tensile stresses
Caractéristiques mécaniques des éléments de fixation en acier au carbone
et en acier allié —
Partie 5: Vis sans tête et éléments de fixation filetés similaires non soumis à
des contraintes de traction
A
Reference number
ISO 898-5:1998(E)
ISO 898-5:1998(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.
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.
International Standard ISO 898-5 was prepared by Technical Committee ISO/TC 2, Fasteners, Subcommittee SC 1,
Mechanical properties of fasteners.
This second edition cancels and replaces the first edition (ISO 898-5:1980), which has been technically revised.
ISO 898 consists of the following parts, under the general title Mechanical properties of fasteners made of carbon steel
and alloy steel:
— Part 1: Bolts screws and studs
— Part 2: Nuts with specified proof load values — Coarse thread
— Part 5: Set screws and similar threaded fasteners not under tensile stresses
— Part 6: Nuts with specified proof load values — Fine pitch thread
— Part 7: Torsional test and minimum torques for bolts and screws with nominal diameters 1 mm to 10 mm
Annex A of this part of ISO 898 is for information only.
©  ISO 1998
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 the publisher.
International Organization for Standardization
Case postale 56 • CH-1211 Genève 20 • Switzerland
Internet [e-mail]
Printed in Switzerland
ii
©
INTERNATIONAL STANDARD  ISO ISO 898-5:1998(E)
Mechanical properties of fasteners made of carbon steel and alloy
steel —
Part 5:
Set screws and similar threaded fasteners not under tensile stresses
1  Scope
This part of ISO 898 specifies the mechanical properties of set screws and similar threaded fasteners not under tensile
stresses with nominal thread diameters from 1,6 mm up to and including 24 mm, which are made of carbon steel or alloy
steel.
The mechanical and physical properties apply when tested at an ambient temperature of 10 °C to 35 °C and will vary at
higher or lower temperatures.
This part of ISO 898 does not apply to set screws requiring special properties such as
— specified tensile stresses (see ISO 898-1);
— weldability;
— corrosion resistance;
— ability to withstand temperatures above + 300 °C or below – 50 °C.
NOTE —  Set screws made from free-cutting steel should not be used above + 250 °C.
2  Normative references
The following standards contain provisions which, through reference in this text, constitute provisions of this part of ISO 898.
At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements
based on this part of ISO 898 are encouraged to investigate the possibility of applying the most recent editions of the
standards indicated below. Members of IEC and ISO maintain registers of currently valid International Standards.
ISO 965-3:1998, ISO general purpose metric screw threads —Tolerances — Part 3: Deviations for constructional threads.
ISO 4948-1:1982, Steels — Classification — Part 1: Classification of steels into unalloyed and alloy steels based on
chemical composition.
ISO 6506:1981, Metallic materials — Hardness test — Brinell test.
ISO 6507-1:1997, Metallic materials — Vickers hardness test — Part 1: Test method.
ISO 6508:1986, Metallic materials — Hardness test — Rockwell test (scales A - B - C - D - E - F - G - H - K).
©
ISO
ISO 898-5:1998(E)
3  Designation system
The property classes are designated by the symbols shown in table 1.
The numerical part of the symbol represents 1/10 of the minimum Vickers hardness.
The letter H in the symbol refers to hardness.
Table 1 — Designations of property classes in relation to Vickers hardness
Property class 14H 22H 33H 45H
Vickers hardness, HV min. 140 220 330 450
4  Materials
Set screws shall be made of steel conforming to the requirements specified in table 2.
For property class 45H, other materials may be used provided that the proof torque requirements in 6.3 are met.
Table 2 — Steel specifications
Property class Material Heat treatment Chemical composition
% (m/m)
CP S
max. min. max. max.
1, 2)
Carbon steel — 0,50 — 0,11 0,15
14H
3)
22H Carbon steel Quenched and tempered 0,50 — 0,05 0,05
3)
33H Carbon steel Quenched and tempered 0,50 — 0,05 0,05
3, 4)
45H Alloy steel Quenched and tempered 0,50 0,19 0,05 0,05
1)  Free-cutting steel may be used, with lead content 0,35 % maximum, phosphorus content 0,11 % maximum and sulphur content
0,34 % maximum.
2)  Case hardening is allowed in the case of square-head set screws.
3)  Steel with lead content 0,35 % maximum may be used.
4)  Shall contain one or more of alloying elements chromium, nickel, molybdenum, vanadium or boron, see ISO 4948-1.
©
ISO
ISO 898-5:1998(E)
5  Mechanical properties
When tested by the methods specified in clause 6, the set screws shall have, at ambient temperature, the mechanical
properties specified in table 3.
Table 3 — Mechanical properties
1)
Mechanical properties Property class
14H 22H 33H 45H
Vickers hardness HV 10 min. 140 220 330 450
max. 290 300 440 560
Brinell hardness HB, F = 30 D min. 133 209 314 428
max. 276 285 418 532
HRB min. 75 95 — —
2)
Rockwell hardness max. 105 ——
2)
HRC min. — 33 45
max. — 30 44 53
Torque strength — — — see table 5
1 2 3
H H H
Minimum height of non-decarburized thread zone, E —

1 1 1
2 3 4
3)
Maximum depth of complete decarburization, G mm — 0,015 0,015
Surface hardness HV 0,3 max. — 320 450 580
1)  Prope
...