SIST ENV 22605-1:1997

Steel products for pressure purposes - Derivation and verification of elevated temperature properties - Part 1: Yield or proof stress of carbon and low alloy steel products (ISO 2605-1:1976)

This International Standard defines           - a method for deriving minimum elevated temperature lower yield or proof stress values for inclusion in International Standards for steel products for pressure purposes;1           - a verification procedure which may be used by a manufacturer  as  an  alternative  to  hot-testing  for satisfying the purchaser that his product consistently meets the  specified  minimum elevated temperature proof stress values in such specifications.           1) Application to national standards

Stahlerzeugnisse für die Anwendung bei Druck - Ableitung und Prüfung von Eigenschaften bei erhöhter Temperatur - Teil 1: Streckgrenze oder Dehngrenze von Erzeugnissen aus Kohlenstoff- und niedriglegierten Stählen (ISO 2605-1:1976)

Produits en acier pour récipients a pression - Dérivation et vérification des valeurs a température élevée - Partie 1: Limite d'élasticité ou limite conventionelle d'élasticité des produits en acier au carbone ou faiblement allié (ISO 2605-1:1976)

Jekleni izdelki za tlačne posode - Izpeljava in verifikacija lastnosti pri povišanih temperaturah - 1. del: Napetost tečenja ali dogovorna napetost tečenja ogljikovih in malolegiranih jeklenih izdelkov (ISO 2605-1:1976)

General Information

• Status: Withdrawn
• Publication Date: 30-Apr-1997
• Withdrawal Date: 31-Aug-2005
• ICS: 77.140.30 - Steels for pressure purposes
• Technical Committee: IFEK - Ferrous metals
• Current Stage: 9900 - Withdrawal (Adopted Project)
• Start Date: 01-Sep-2005
• Due Date: 01-Sep-2005
• Completion Date: 01-Sep-2005
• Ref Project: ENV 22605-1:1991 - Steel products for pressure purposes - Derivation and verification of elevated temperature properties - Part 1: Yield or proof stress of carbon and low alloy steel products (ISO 2605-1:1976)

Relations

• Replaced By: SIST EN 10314:2003 - Method for the derivation of minimum values of proof strength of steel at elevated temperatures
• Effective Date: 01-Sep-2005

Standards Content (Sample)

SLOVENSKI STANDARD
SIST ENV 22605-1:1997
01-maj-1997
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WHPSHUDWXUDKGHO1DSHWRVWWHþHQMDDOLGRJRYRUQDQDSHWRVWWHþHQMDRJOMLNRYLK
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Steel products for pressure purposes - Derivation and verification of elevated
temperature properties - Part 1: Yield or proof stress of carbon and low alloy steel
products (ISO 2605-1:1976)
Stahlerzeugnisse für die Anwendung bei Druck - Ableitung und Prüfung von
Eigenschaften bei erhöhter Temperatur - Teil 1: Streckgrenze oder Dehngrenze von
Erzeugnissen aus Kohlenstoff- und niedriglegierten Stählen (ISO 2605-1:1976)
Produits en acier pour récipients a pression - Dérivation et vérification des valeurs a
température élevée - Partie 1: Limite d'élasticité ou limite conventionelle d'élasticité des
produits en acier au carbone ou faiblement allié (ISO 2605-1:1976)
Ta slovenski standard je istoveten z: ENV 22605-1:1991
ICS:
77.140.30 Jekla za uporabo pod tlakom Steels for pressure purposes
SIST ENV 22605-1:1997 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST ENV 22605-1:1997

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SIST ENV 22605-1:1997

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SIST ENV 22605-1:1997

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SIST ENV 22605-1:1997
INTERNATIONAL STANDARD 260511
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION l MEXAYHAPOAHAR OPI-AHM3AUMR I-IO CI-AHAAPTki3ALWM.ORGANISATION INTERNATIONALE DE NORMALISATION
Steel products for pressure purposes - Derivation and
verif ication sf elevated temperature properties -
Part I : Yield or proof stress of carbon and low alloy steel
products
Produits en acier pour rkipients 2 Pression - Dbriva tion et vkrification des valeurs 2 tempha ture 6lev6e -
Partie / : Limite d’tilasticite’ ou limite conventionnelle dWasticite des produits en acier au carbone ou faiblement
all%
First edition - 1976-1 l-l 5
UDC 669.14.018.452 : 620.172.224.4 Ref. No. ISO 2605/1-1976 (E)
high temperature tests, quality control, verifying,
Descriptors : iron and steel products, unalloyed steels, Iow-alloy steels, pressure vessels,
elastic limit.
Price based on 7 pages

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SIST ENV 22605-1:1997
FOREWORD
BSQ (the International Qrganization for Standardization) is a worldwide federation
of national Standards institutes (ISO Menber Bodies). The work of developing
International Standards is carried out through ISO Technical Committees. Every
Member Body interested in a subject for fluhich a Technical Committee has been set
up 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.
Draft International Standards adopted by the Technical Committees are circulated
to the Member Bodies for approval before their acceptance as International
Standards by the ISO Council.
International Standard ISO 2605/1 was drawn up by Technical Committee
lSO/TC 17, Steel, and was circulated to the Member Bodies in February 1975.
lt has been approved by the Member Bodies of the following countries :
Austria Iran
Spain
Bulgaria Ireland
Sweden
Czechoslovak ia Mexico Switzerland
Denmark Netherlands Turkey
F inland Norway United Kingdom
Germany Poland U.S.S.R.
Hungary Romania Yugoslavia
lndia South Africa, Rep. of
The Member Bodies of the following countries expressed disapproval of the
document on technical grounds :
Australia Canada
Japan
Belgium
France U.S.A.
0 International Organization for Standardkation, 1976 l
Printed in Switzerland

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SIST ENV 22605-1:1997
ISO 2605/1-1976 (E)
INTERNATIONAL STANDARD
Steel products for pressure purposes - Derivation and
verif ication of elevated temperature properties -
Part I : Yield or proof stress of carbon and low alloy steel
products
0 INTROQUCTlON REFERENCES IN INTRODUCTION
ISO 82, Steel - Tensile testing.
In the ISO rules for the construction of stationary boilers
ISO 375, Tensile testing of tubes.
(lSO/R 831) and the draft rules for the construction of
unfired pressure vessels, minimum lower yield or proof
ISO/R 783, Mechanical testing of steel at elevated temperatures -
stress at elevated temperature is Iisted as one of the design Determination o f lower yield stress and proo f stress and proving
test.
criteria. Accordingly, International Standards for pressure
vessel steels or national Standards conforming to the above
ISO/R 831, Rules for construction sf stationary boilers.
rules should specify Iower yield or proof stress properties
at elevated temperature.
1 SCOPE AND FIELD OF APBLICATION
NOTE - Where this International Standard subsequently makes
reference to proof stress, it should be understood that lower yield
This International Standard defines
stress also appl ies where appropriate.
-
a method for deriving minimum elevated temper-
International Standards for pressure vessels steels will
ature Iower yield or proof stress values for inclusion in
normally give specif ied elevated temperature proof stress
International Standards for steel products for pressure
values which are derived statistically from a body of data.
purposes;l )
In all such cases the manufacturer may satisfy the customer
-
that the product supplied consistently meets the properties a verification procedure which may be used by a
by either manufacturer as an alternative to hot-testing for
satisfying the purchaser that his product consistently
a) hot-testing the product, or
meets the specified minimum elevated temperature
proof stress values in such specifications.
b) producing a body of data on the product.
This International Standard has been prepared in Order to
implement the alternative procedure using a body of data.
2 PROCEDURE FOR DERIVING MINIfV’iUM PROPER-
lt also defines the method by which the minimum elevated
TIES
temperature yield or proof stress values to be included in
International Standards for pressure vessel steels should be
2.1 Basis od method
derived.
Zl.1 The elevated temperature proof stress properties are
NOTES
derived from a weil-defined body of data on the basis of a
1 Whilst the validity of the derivation procedure has been
linear regression analysis sf the elevated temperature proof
examined in relation to data for a variety of steels, future
stress values against the room temperature tensile strengths
experience indicate that modifications are desirable,
mw
particularly in relation to the minimum quantity and distribution at each of a number of temperatures.
of data required by the derivation and verification procedures.
2 All tests used to implement this procedure either at room
2.1.2 For the purpose of this International Standard, the
temperature or at elevated temperature shall be carried out in
specified minimum proof stress value (Et) at a given
conformity with the appropriate ISO documents (for example
temperature is defined as the proof stress derived from the
ISO 82, ISO 375, at room temperature, and ISO/R 783 at elevated
lower 95 c/o confidence level at a level at a tensile strength
temperatures). However, data previously obtained using other test
methods may be used for an interim period. 30 N/mm* above the specified minimum tensile strength.
Application to national Standards
1)
If a country adopts in its national Standard an ISO steel together with the properties specified in International Standards for this steel (or
properties derived in accordance with this International Standard from the agreed regression lines), then it is not necessary for the country to
separately apply the derivation procedure. If a country specifies non-ISO steels for use in compliance with ISO boiler and pressure vessel design
Codes, the procedures as given in ISO . _ ., Steel products for pressure purposes - Derivation and verifica tion o f eleva ted tempera ture
properties - Part. . . Derivation of yield at proof stress from limited data, (in preparation) shall appry.
1

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SIST ENV 22605-1:1997
ISO 2605/1-1976 (E)
2.2 Basic requirements
2.5.2 T-he values so obtained shall then be plotted as a
function of temperature and a family of curves for different
22.1 The method shall be appiied separately for each
tensile strength levels constructed. If the values obtained in
product form, thickness range, section size range or heat-
accordance with 2.5.1 do not produce smooth curves, then
treatment condition for which elevated temperature proof
conservative curves shall be drawn through the majority of
stress properties are to be specified in the relevant
the Points at each tensile strength level (see figure 2).
International Standard, unless it tan be shown that the data
being considered belong to the same population.
2.5.3 A further tensile strength/proof stress graph shall
then be constructed plotting the 95 % Iower confidence
22.2 The data utilized shall be obtained using test samples
limit value at each of a number of temperatures, the values
which
being read off the proof stress/temperature curves prepared
in accordance with 2.5.2.
a) are representative of the thickness or section size
range and heat treatment to w
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