ISO 65-1981 scan

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International Standard 65

INTERNATIONAL ORGANIZATION FORSTANDARDlZATION*ME~YHAPO~HAR OPTAHblBAl&lR IlO CTAHAAPTM3A~MWJRGANlSATlON INTERNATIONALE DE NORMALISATION

Carbon steel tubes suitable for screwing in accordance

with IS0 7/l

Tubes en acier au carbone filetables selon IS0 7/l

Second edition - 1961-04-15

UDC 621 A4323 Ref. No. IS0 65-1961 (E)

Descriptors

: piping, steel tubes, welded tubes, seamless tubes, materials specifications, appearance, dimensions, linear density, diameters.

Price based on 3 pages

Foreword

IS0 (the international Organization for Standardization) is a worldwide federation of

national standards institutes (IS0 member bodies). The work of developing Inter-

national Standards is carried out through IS0 technical committees. Every member

body interested in a subject for which 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 IS0 Council.

International Standard IS0 65 was developed by Technical Committee ISO/TC 5,

Metalpipes and fittings,

and was circulated by the member bodies in December 1979.

It has been approved by the member bodies of the following countries:

Austria

Belgium

Brazil

Bulgaria

China

Czechoslovakia

Denmark

Egypt, Arab Rep. of

Finland

France

Germany, F. R.

Hungary

India

Israel

Italy

Japan

Korea, Rep. of

Netherlands

Norway

Poland

Romania

South Africa, Rep, of

Spain

Sweden

Switzerland

USSR

The member bodies of the following countries expressed disapproval of the document

on technical grounds:

Australia

Canada

United Kingdom

USA

This second edition cancels and replaces the first edition (i.e, IS0 65-19731,

0 International Organization for Standardization, 1981 0

Printed in Switzerland

INTERNATlONLiLSTANDARD IS0 65-1961 (El

Carbon steel tubes suitable for screwing in accordance

with IS0 7/l

1 Scope and field of application

This International Standard establishes the dimensions and

characteristics of seamless and welded steel tubes for four

separate series, namely :

a) Heavy series, for seamless and welded steel tubes;

b) Medium series, for seamless and welded steel tubes;

c1 Light series 1, for seamless and welded steel tubes;

d) Light series 2, for welded steel tubes.

The National Committees may lay down the limits of applica-

tion for these tubes in accordance with the regulations in force

in their country.

2 References

IS0 7/l,

Pipe threads where pressure-tight joints are made on

the threads - Part 1 : Designation, dimensions and toler-

ances. l)

IS0

50, Metal pipes - Steel sockets screwed according to

IS0 7.

IS0

404, Steel and steel products - General technical delivery

requirements. 2)

IS0 4200,

Plain end steel tubes, welded and seamless -

General tables of dimensions and masses per unit length.

3 Calculation of masses

The values for masses per unit length have been calculated on

the basis of the mean of the maximum and minimum diameters

given in table 3 and using the basis for calculation as given in

IS0 4200 and have been modified for screwed and socketed

tubes by an amount based on the mean mass of a socket and a

length of 7 m.

4 General requirements

4.1

The tubes shall be made by a seamless or welded pro-

cess.

4.2 The tubes shall be suitable for fabrication and shaping by

normal techniques.

4.3 The tubes shall be weldable.

4.4 Mechanical tests on, and chemical analysis of, the

finished product are not required.

5 Material

For guidance, the steel shall have the following properties on

longitudinal test pieces cut from the tube outside the welded

area.

Table 1 - Properties of the steel

Steel grade

designation

Seamless Welded N/mm2 %* P s

TS.0 l-W.0 320 to 520 15 0,08 0,06

* on L, = 5,65&

where L, is the original gauge length and

S, is the original cross-

sectional area.

6 Appearance

6.1

The tubes shall have smooth external and internal sur-

faces, the degree of smoothness depending on the method of

manufacture. Unless otherwise agreed in the order, the internal

weld bead shall not be removed. The tubes shall have a

workmanlike finish but small imperfections are permissible pro-

vided that the thickness remains within the lower tolerance

limit.

11 ‘At present at the stage of draft. (Revision IS0 7/l-1978.)

2) At present at the stage of draft. (Revision of ISO/R 404-1964.)

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摘要：

访问 ISO 65-1981 扫描版文档，获取关于碳钢无缝与焊接圆管的国际标准规范。该标准最初于1981年发布，详细规定了通用管道的尺寸、机械性能、化学成分及测试方法，适用于工业、建筑及机械制造领域。本扫描版本保留了原始技术内容与图表，方便工程师、采购人员及质量管理者查阅认证要求或进行标准对照。无论您是进行管材选型、合规性检查，还是追溯历史版本，该文档均为可靠参考依据。注意：请确认当前应用是否需要参考最新修订版。

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