Hydraulic fluid power -- Plain-end, seamless and welded precision steel tubes -- Dimensions and nominal working pressures

This document specifies sizes and nominal working pressures for seamless and welded precision steel tubes with outside diameters in accordance with ISO 4397, and wall thicknesses and mechanical properties in accordance with ISO 3305. The nominal working pressures included in this document reflect a design factor ratio of 4 to 1 applied to the calculated burst pressures.

Transmissions hydrauliques -- Tubes de précision en acier, soudés ou non, à extrémités lisses -- Dimensions et pressions nominales de travail

Fluidna tehnika - Hidravlika - Cevi iz celega in varjene natančne jeklene cevi z ravnimi konci - Mere in nazivni delovni tlaki

General Information

Status
Published
Publication Date
08-Jun-2021
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
01-Jun-2021
Due Date
06-Aug-2021
Completion Date
09-Jun-2021

Overview

ISO 10763:2020 - Hydraulic fluid power - Plain-end, seamless and welded precision steel tubes - Dimensions and nominal working pressures defines sizes and safe working pressures for precision steel tubes used in hydraulic fluid power systems. The standard references tube outside diameters from ISO 4397 and wall thicknesses/mechanical properties from ISO 3305, and it applies a conservative design factor (4:1) to calculated burst pressures to derive nominal working pressures.

Keywords: ISO 10763:2020, hydraulic fluid power, precision steel tubes, nominal working pressure, tube dimensions

Key topics and requirements

  • Scope: Specifies nominal outside diameters, wall thicknesses and working pressures for plain-end seamless and welded precision steel tubes intended for hydraulic applications.
  • Material and mechanical grade: Tubes are required to meet mechanical properties of grade R37 in normalized condition (NBK) as per ISO 3305. Nominal working pressures in the standard are based on a minimum tensile strength of 360 MPa.
  • Pressure derivation: Nominal working pressures are derived from calculated burst pressures using tube geometry and material tensile strength (the calculation uses the natural logarithm of D/(D − 2t)), then applying a design factor of 4 so that Pw = Pb / 4.
  • Tabulated values: Table 1 in the standard lists nominal working pressures (MPa and bar) for a matrix of outside diameters and wall thicknesses, enabling direct selection for common tube sizes.
  • Identification: The document recommends an identification statement for manufacturers to include in test reports and sales literature when conforming to ISO 10763.

Applications and users

Practical applications:

  • Hydraulic power transmission lines in mobile and industrial machinery
  • Rigid conduits between hydraulic components, fittings and connectors
  • Design and specification of tubing for high-pressure fluid circuits

Who uses this standard:

  • Tube manufacturers and suppliers (product specification and test reporting)
  • Hydraulic system designers and OEMs (component selection and safety margins)
  • Purchasing and QA personnel (ensuring conformity to specified pressures and dimensions)
  • Test laboratories and certification bodies (verification of mechanical properties and pressure ratings)

Related standards

  • ISO 3305 - Plain end welded precision steel tubes - Technical conditions for delivery
  • ISO 4397 - Nominal outside diameters of tubes and nominal hose sizes
  • ISO 5598 - Fluid power systems and components - Vocabulary

ISO 10763:2020 is essential when selecting precision steel tubes for hydraulic systems where accurate tube dimensions and conservative, standardized working pressures are required to ensure safe, interoperable fluid-power installations.

Standard

ISO 10763:2020 - Hydraulic fluid power — Plain-end, seamless and welded precision steel tubes — Dimensions and nominal working pressures Released:6/26/2020

English language
3 pages
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Frequently Asked Questions

SIST ISO 10763:2021 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Hydraulic fluid power -- Plain-end, seamless and welded precision steel tubes -- Dimensions and nominal working pressures". This standard covers: This document specifies sizes and nominal working pressures for seamless and welded precision steel tubes with outside diameters in accordance with ISO 4397, and wall thicknesses and mechanical properties in accordance with ISO 3305. The nominal working pressures included in this document reflect a design factor ratio of 4 to 1 applied to the calculated burst pressures.

This document specifies sizes and nominal working pressures for seamless and welded precision steel tubes with outside diameters in accordance with ISO 4397, and wall thicknesses and mechanical properties in accordance with ISO 3305. The nominal working pressures included in this document reflect a design factor ratio of 4 to 1 applied to the calculated burst pressures.

SIST ISO 10763:2021 is classified under the following ICS (International Classification for Standards) categories: 23.100.40 - Piping and couplings; 77.140.75 - Steel pipes and tubes for specific use. The ICS classification helps identify the subject area and facilitates finding related standards.

You can purchase SIST ISO 10763:2021 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 SIST standards.

Standards Content (Sample)


SLOVENSKI STANDARD
01-julij-2021
Fluidna tehnika - Hidravlika - Cevi iz celega in varjene natančne jeklene cevi z
ravnimi konci - Mere in nazivni delovni tlaki
Hydraulic fluid power -- Plain-end, seamless and welded precision steel tubes --
Dimensions and nominal working pressures
Transmissions hydrauliques -- Tubes de précision en acier, soudés ou non, à extrémités
lisses -- Dimensions et pressions nominales de travail
Ta slovenski standard je istoveten z: ISO 10763:2020
ICS:
23.100.40 Cevna napeljava in sklopke Piping and couplings
77.140.75 Jeklene cevi in cevni profili Steel pipes and tubes for
za posebne namene specific use
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

INTERNATIONAL ISO
STANDARD 10763
Third edition
2020-06
Hydraulic fluid power — Plain-end,
seamless and welded precision steel
tubes — Dimensions and nominal
working pressures
Transmissions hydrauliques — Tubes de précision en acier, soudés ou
non, à extrémités lisses — Dimensions et pressions nominales de travail
Reference number
©
ISO 2020
© ISO 2020
All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2020 – All rights reserved

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Requirements . 1
5 Nominal working pressures . 1
6 Identification statement (reference to this document) . 3
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.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).
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. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/ patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www .iso .org/
iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 131, Fluid power systems, Subcommittee
SC 4, Connectors and similar products and components.
This third edition cancels and replaces the second edition (ISO 10763:2019), which has been technically
revised.
The main changes compared to the previous edition are as follows:
— A sentence was corrected in the Scope.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/ members .html.
iv © ISO 2020 – All rights reserved

Introduction
In hydraulic fluid power systems, power is tran
...


INTERNATIONAL ISO
STANDARD 10763
Third edition
2020-06
Hydraulic fluid power — Plain-end,
seamless and welded precision steel
tubes — Dimensions and nominal
working pressures
Transmissions hydrauliques — Tubes de précision en acier, soudés ou
non, à extrémités lisses — Dimensions et pressions nominales de travail
Reference number
©
ISO 2020
© ISO 2020
All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2020 – All rights reserved

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Requirements . 1
5 Nominal working pressures . 1
6 Identification statement (reference to this document) . 3
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.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).
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. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/ patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www .iso .org/
iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 131, Fluid power systems, Subcommittee
SC 4, Connectors and similar products and components.
This third edition cancels and replaces the second edition (ISO 10763:2019), which has been technically
revised.
The main changes compared to the previous edition are as follows:
— A sentence was corrected in the Scope.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/ members .html.
iv © ISO 2020 – All rights reserved

Introduction
In hydraulic fluid power systems, power is transmitted and controlled through a liquid under pressure
within an enclosed circuit.
Components may be connected through their ports by connections (fittings) and conduits. Tubes are
rigid conduits.
INTERNATIONAL STANDARD ISO 10763:2020(E)
Hydraulic fluid power — Plain-end, seamless and welded
precision steel tubes — Dimensions and nominal working
pressures
1 Scope
This document specifies sizes and nominal working pressures
...

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