Hand- and machine-operated circular screwing dies for taper pipe threads - R series (ISO 4230:2016)

ISO 4230:2016 is a supplement to ISO 2568 and ISO 4231 and specifies the dimensions of hand- and machine-operated circular screwing dies intended for production of taper pipe threads, R series, in accordance with ISO 7‑1.
With the exception of the die 1/16, the general dimensions of these dies (diameter, thickness and fixing dimensions) are in accordance with ISO 2568 so as to permit the driving of hand-operated dies with the aid of the die stocks defined in that document.

Runde Hand- und Maschinen-Schneideisen für kegeliges Rohrgewinde - Reihe R (ISO 4230:2016)

Diese Internationale Norm ist eine Ergänzung zu ISO 2568 und ISO 4231 und legt die Maße für runde Hand- und Maschinen-Schneideisen fest, die für kegelige Rohrgewinde, Reihe R, nach ISO 7-1 bestimmt sind.
Mit Ausnahme des Schneideisens 1/16 stimmen die Hauptmaße dieser Schneideisen (Durchmesser, Dicke und Einspannmaße) mit der Norm ISO 2568 überein, so dass Hand-Schneideisen mit Hilfe der in diesem Dokument festgelegten Schneideisenhalter angetrieben werden können.

Filières rondes de filetage, à main et à machine, pour filetages coniques de tuyauterie - Série R (ISO 4230:2016)

ISO 4230:2016 complète l'ISO 2568 et l'ISO 4231 et fixe les dimensions des filières rondes de filetage, à main et à machine, destinées à l'exécution des filetages coniques de tuyauterie, série R, conformes à l'ISO 7‑1.
À l'exception de la filière 1/16, les dimensions générales de ces filières (diamètre, épaisseur et dimensions de fixation) sont en concordance avec l'ISO 2568, de façon à permettre la man?uvre des filières à main à l'aide des porte-filière définis dans celle-ci.

Ročne in strojne okrogle navojne čeljusti za konične cevne navoje - Serija R (ISO 4230:2016)

Ta mednarodni standard dopolnjuje standarde ISO 2568 in ISO 4231 ter določa mere
ročnih in strojnih okroglih navojnih čeljusti, ki so namenjene izdelavi koničnih cevnih navojev serije R skladno s standardom ISO 7-1.
Z izjemo čeljusti mere 1/16, so splošne mere teh čeljusti (premer, debelina in mere pritrditev) skladne s standardom ISO 2568, tako da je ročne čeljusti mogoče upravljati s pomočjo vzvodov, ki so opredeljeni v tem dokumentu.

General Information

Status
Published
Publication Date
08-Nov-2016
Withdrawal Date
30-May-2017
ICS
25.100.50 - Taps and threading dies
Technical Committee
CEN/SS I09 - Small tools
Drafting Committee
CEN/SS I09 - Small tools
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
09-Nov-2016
Completion Date
09-Nov-2016
Ref Project
SIST EN ISO 4230:2017 - Hand- and machine-operated circular screwing dies for taper pipe threads - R series (ISO 4230:2016)

Relations

Replaces
EN 24230:1989 - Hand- and machine-operated circular screwing dies for taper pipe threads - R series (ISO 4230:1987)
Effective Date
01-Jul-2015

Overview

EN ISO 4230:2016 is a European Standard that specifies the dimensions of hand- and machine-operated circular screwing dies designed for taper pipe threads of the R series, in accordance with ISO 7-1. This standard serves as a supplement to ISO 2568 and ISO 4231, harmonizing the dimensions to ensure compatibility, especially for hand-operated dies with die stocks defined by ISO 2568, except for the 1/16 size die. Approved by CEN in 2016, it standardizes tooling to enhance interchangeability, quality, and efficiency in producing pressure-tight taper pipe threads.

Key Topics

  • Scope and Application
    EN ISO 4230:2016 defines physical dimensions-including diameter, thickness, pitch, and fixing parameters-of circular screwing dies used in threading taper pipes in the R series. This ensures reliable production and interchangeability of dies used in both manual and machine operations.

  • Dimensional Specifications
    The standard includes detailed measurements such as:

    • Basic diameter and pitch of the thread
    • Die thickness and number of full threads
    • Fixing dimensions compatible with ISO 2568 die stocks (except die 1/16)

  • Marking Requirements
    Dies conforming to this standard must be clearly marked with an “R” followed by the thread designation (e.g., R 3/4). Manufacturers may append the ISO symbol to indicate full compliance with International Standards.

  • Compatibility and Interchangeability
    By aligning dimensions with ISO 2568 and ISO 4231, hand- and machine-operated dies can be interchanged across various tooling systems, streamlining manufacturing workflows and reducing tooling costs.

  • Additional References and Annexes
    Annex A provides a cross-reference between designations in EN ISO 4230 and cutting tool data symbols per ISO 13399, facilitating digital data exchange and tooling management.

Applications

  • Pipe Thread Manufacturing
    EN ISO 4230:2016 applies primarily to the manufacturing of pressure-tight taper pipe threads used in pipelines and fluid transport systems. It is critical in sectors such as oil and gas, plumbing, chemical processing, and automotive industries.

  • Tooling Standardization in Workshops
    The standard supports workshops and manufacturers by providing reliable tooling dimensions for both hand and automated screwing dies, enhancing the efficiency of thread cutting operations.

  • Maintenance and Replacement
    Standardized dies allow easy replacement and maintenance within machine shops, reducing downtime and improving tool inventory management.

  • Quality Assurance
    Conformance to EN ISO 4230:2016 helps organizations meet quality control requirements and align with international benchmarks for tooling precision.

Related Standards

  • ISO 2568: Specifies general dimensions for hand- and machine-operated circular screwing dies and die stocks. EN ISO 4230 is a supplement, maintaining compatibility with ISO 2568 dimensions.

  • ISO 7-1: Defines pipe thread dimensions where pressure-tight joints are made on threads, foundational for R series taper threads.

  • ISO 4231: Addresses hand- and machine-operated screwing dies for parallel pipe threads (G series), complementary to EN ISO 4230.

  • ISO 13399: Cutting tool data representation and exchange standard referenced in EN ISO 4230 for terminology and tooling data interoperability.

Conclusion

EN ISO 4230:2016 establishes essential specifications for circular screwing dies used in taper pipe thread production, ensuring consistency, quality, and interchangeability in both hand- and machine-operated tools. Adopting this standard enhances manufacturing precision and supports industrial applications requiring pressure-tight pipe connections. With strong ties to related ISO standards, it facilitates efficient tooling management and quality assurance across global industries.

Keywords: EN ISO 4230:2016, circular screwing dies, taper pipe threads, R series, ISO 7-1, ISO 2568, pipe thread manufacturing, hand-operated dies, machine-operated dies, tooling standardization, screw thread dimensions, pressure-tight pipe joints.

Frequently Asked Questions

EN ISO 4230:2016 is a standard published by the European Committee for Standardization (CEN). Its full title is "Hand- and machine-operated circular screwing dies for taper pipe threads - R series (ISO 4230:2016)". This standard covers: ISO 4230:2016 is a supplement to ISO 2568 and ISO 4231 and specifies the dimensions of hand- and machine-operated circular screwing dies intended for production of taper pipe threads, R series, in accordance with ISO 7‑1. With the exception of the die 1/16, the general dimensions of these dies (diameter, thickness and fixing dimensions) are in accordance with ISO 2568 so as to permit the driving of hand-operated dies with the aid of the die stocks defined in that document.

ISO 4230:2016 is a supplement to ISO 2568 and ISO 4231 and specifies the dimensions of hand- and machine-operated circular screwing dies intended for production of taper pipe threads, R series, in accordance with ISO 7‑1. With the exception of the die 1/16, the general dimensions of these dies (diameter, thickness and fixing dimensions) are in accordance with ISO 2568 so as to permit the driving of hand-operated dies with the aid of the die stocks defined in that document.

EN ISO 4230:2016 is classified under the following ICS (International Classification for Standards) categories: 25.100.50 - Taps and threading dies. The ICS classification helps identify the subject area and facilitates finding related standards.

EN ISO 4230:2016 has the following relationships with other standards: It is inter standard links to EN 24230:1989. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

You can purchase EN ISO 4230:2016 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.

Standards Content (Sample)


SLOVENSKI STANDARD
01-januar-2017
1DGRPHãþD
SIST EN 24230:2000
5RþQHLQVWURMQHRNURJOHQDYRMQHþHOMXVWL]DNRQLþQHFHYQHQDYRMH6HULMD5 ,62

Hand- and machine-operated circular screwing dies for taper pipe threads - R series
(ISO 4230:2016)
Runde Hand- und Maschinen-Schneideisen für kegeliges Rohrgewinde - Reihe R (ISO
4230:2016)
Filières rondes de filetage, à main et à machine, pour filetages coniques de tuyauterie -
Série R (ISO 4230:2016)
Ta slovenski standard je istoveten z: EN ISO 4230:2016
ICS:
25.100.50 Navojna rezalna orodja Taps and threading dies
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 4230
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2016
EUROPÄISCHE NORM
ICS 25.100.50 Supersedes EN 24230:1989
English Version
Hand- and machine-operated circular screwing dies for
taper pipe threads - R series (ISO 4230:2016)
Filières rondes de filetage, à main et à machine, pour Runde Hand- und Maschinen-Schneideisen für
filetages coniques de tuyauterie - Série R (ISO kegeliges Rohrgewinde - Reihe R (ISO 4230:2016)
4230:2016)
This European Standard was approved by CEN on 24 September 2016.

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

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 4230:2016 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 4230:2016) has been prepared by Technical Committee ISO/TC 29 “Small
tools”.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by May 2017, and conflicting national standards shall be
withdrawn at the latest by May 2017.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent
rights.
This document supersedes EN 24230:1989.
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, 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 the United Kingdom.
Endorsement notice
The text of ISO 4230:2016 has been approved by CEN as EN ISO 4230:2016 without any modification.
INTERNATIONAL ISO
STANDARD 4230
Third edition
2016-10-15
Hand- and machine-operated
circular screwing dies for taper pipe
threads — R series
Filières rondes de filetage, à main et à machine, pour filetages
coniques de tuyauterie — Série R
Reference number
ISO 4230:2016(E)
©
ISO 2016
ISO 4230:2016(E)
© ISO 2016, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
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ii © ISO 2016 – All rights reserved

ISO 4230:2016(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Dimensions . 1
4 Marking . 2
Annex A (informative) Relationship between designations in this International Standard
and ISO 13399
...

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