具有规定高温特性的压力用途热轧可焊钢棒

EN 10273 : 2000

EN 101681)	Iron and steel products – Inspection and delivery documents contents – List of information and description
EN 10204	Metallic products – Types of inspection documents (including amendment A1 : 1995)
EN 10221	Surface quality classes for hot-rolled bars and rods – Technical delivery conditions
EN ISO 377	Steel and steel products – Location and preparation of samples and test pieces for mechanical testing (ISO 377 : 1997)
ISO 14284	Steel and iron – Sampling and preparation of samples for the determination of chemical composition

3 Definitions

For the purposes of this standard the definitions of

• EN 10020 for classification of steels,
• EN 10052 for the types of heat treatment and
• EN 10079 for the various product forms

apply.

Deviating from (see 3.1) or additional to (see 3.2) EN 10052 the following is defined:

3.1 Normalizing rolling is a rolling process in which the final deformation process is carried out in a certain temperature range leading to a material condition equivalent to that obtained after normalizing so that the specified values of the mechanical properties are retained even after normalizing. The symbol for this delivery condition is N.

3.2 Additionally to the definitions for quenching and tempering the following should be noted :

NOTE: Quenching and tempering (symbol QT) also includes direct hardening plus tempering.

3.3 Purchaser: The person or organization that orders products in accordance with this standard. The purchaser is not necessarily, but may be, a manufacturer of pressure equipment in accordance with the EU Directive listed in Annex ZA. Where a purchaser has responsibilities under this EU Directive, this standard will provide a presumption of conformity with the essential requirements of the Directive so identified in Annex ZA.

4 • Dimensions and tolerances on dimensions

The nominal dimensions and tolerances on dimensions for the products shall be agreed at the time of enquiry and order with reference to one of the dimensional standards listed below for

• rectangular section to EURONORM 58,
• square section to EURONORM 59,
• round section to EURONORM 60,
• hexagonal section to EURONORM 61.

5 Calculation of mass

A density of 7,85 kg/dm³ shall be used as the basis for the calculation of the nominal mass from the nominal dimensions of all steels.

1) In preparation; until this document is published as European Standard a corresponding national standard should be agreed at the time of enquiry and order.

6

2 Scope

2

EUROPEAN STANDARD

NORME EUROPÉENNE

EUROPÄISCHE NORM

EN 10216-3

May 2002

ICS 23.040.10; 77.140.75

English version

Seamless steel tubes for pressure purposes –
Technical delivery conditions

Part 3: Alloy fine grain steel tubes

Tubes sans soudure en acier pour service sous pression – Conditions techniques de livraison – Partie 3: Tubes en acier allié à grain fin

Nahtlose Stahlrohre für Druckbeanspruchungen – Technische Lieferbedingungen – Teil 3: Rohre aus legierten Feinkornbaustählen

This European Standard was approved by CEN on 2002-04-25.

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 Management Centre or to any CEN member.

The European Standards exist 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 Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, the Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, the Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, and the United Kingdom.

CEN

European Committee for Standardization

Comité Européen de Normalisation

Europäisches Komitee für Normung

Management Centre: rue de Stassart 36, B-1050 Brussels

© 2002. CEN – All rights of exploitation in any form and by any means reserved worldwide for CEN national members.

Ref. No. EN 10216-3 : 2002 E

Contents

Foreword	3
1	Scope	4
2	Normative references	4
3	Terms and definitions	5
4	Symbols	6
5	Classification and designation	6
5.1	Classification	6
5.2	Designation	6
6	Information to be supplied by the purchaser	7
6.1	Mandatory information	7
6.2	Options	7
6.3	Examples of an order	8
7	Manufacturing process	8
7.1	Steelmaking process	8
7.2	Deoxidation process	8
7.3	Tube manufacture and delivery conditions	8
8	Requirements	9
8.1	General	9
8.2	Chemical composition	9
8.3	Mechanical properties	10
8.4	Appearance and internal soundness	17
8.5	Straightness	17
8.6	Preparation of ends	17
8.7	Dimensions, masses and tolerances	18
9	Inspection	22
9.1	Types of inspection	22
9.2	Inspection documents	22
9.3	Summary of inspection and testing	23
10	Sampling	25
10.1	Frequency of tests	25
10.2	Preparation of samples and test pieces	26
11	Test methods	27
11.1	Chemical analysis	27
11.2	Tensile test	27
11.3	Flattening test	28
11.4	Ring tensile test	28
11.5	Drift expanding test	28
11.6	Ring expanding test	29
11.7	Impact test	29
11.8	Leaktightness test	29
11.9	Dimensional inspection	30
11.10	Visual examination	30
11.11	Non-destructive testing	30
11.12	Material identification	31
11.13	Retests, sorting and reprocessing	31
12	Marking	31
12.1	Marking to be applied	31
12.2	Additional marking	31
13	Protection	31
Annex A (normative)	32
Annex ZA (informative)	33
Bibliography	33

4

:current

Foreword

This document (EN 10216-3:2002) has been prepared by Technical Committee EC/TC 29, "Steel tubes and fittings for steel tubes", the secretariat of which is held by UNI.

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 November 2002, and conflicting national standards shall be withdrawn at the latest by November 2002.

This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s).

For relationship with EU Directive(s), see informative annex ZA, which is an integral part of this document.

Other Parts of EN 10216 are:

Part 1:	Non-alloy steel tubes with specified room temperature properties
Part 2:	Non-alloy and alloy steel tubes with specified elevated temperature properties
Part 4:	Non-alloy and alloy steel tubes with specified low temperature properties
Part 5:	Stainless steel tubes

Another European Standard series covering tubes for pressure purposes is:

EN 10217:

Welded steel tubes for pressure purposes

According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom.

5

1 Scope

This Part of EN 10216 specifies the technical delivery conditions in two test categories for seamless tubes of circular cross section, made of weldable alloyed fine grained steel.

2 Normative references

This European Standard incorporates by date or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For date references, subsequent amendments to or revisions of, any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments).

The requirements of this European Standard rule when they differ from those in the standards and documents referred to below:

EN 10002-1, Metallic materials - Tensile testing - Part 1: Method of test (at ambient temperature).

EN 10002-5, Metallic materials - Tensile testing - Part 5: Method of testing (at elevated temperature).

EN 10020, Definitions and classification of grades of steel.

EN 10021, General technical delivery requirements for steel and iron products.

EN 10045-1, Metallic materials - Charpy impact test - Part 1: Test method.

EN 10052, Vocabulary of heat treatment terms for ferrous products.

EN 10204, Metallic products - Types of inspection documents.

EN 10027-1, Designation systems for steels - Part 1: Steel names, principle symbols.

EN 10027-2, Designation systems for steels Part 2: Numerical systems.

ENV 10220, Seamless and welded steel tubes - Dimensions and masses per unit length

EN 10233, Metallic materials - Tubes - Flattening test.

EN 10234, Metallic materials - Tubes - Drift expanding test.

EN 10236, Metallic materials - Tubes - Ring expanding test.

EN 10237, Metallic materials - Tubes - Ring tensile test.

EN 10246-1, Non-Destructive Testing of steel tubes Part 1: Automatic electromagnetic testing of seamless and welded (except submerged arc welded) ferromagnetic steel tubes for verification of hydraulic leak-tightness.

EN 10246-5, Non-Destructive Testing of steel tubes - Part 5: Automatic full peripheral magnetic transducer/flux leakage testing of seamless and welded (except submerged arc-welded) ferromagnetic steel tubes for the detection of longitudinal imperfections.

EN 10246-6, Non-Destructive Testing of steel tubes - Part 6: Automatic full peripheral ultrasonic testing of seamless steel tubes for the detection of transverse imperfections.

EN 10246-7, Non-Destructive Testing of steel tubes - Part 7: Automatic full peripheral ultrasonic testing of seamless and welded (except submerged arc welded) steel tubes for the detection of longitudinal imperfections.

6