Round steel short link chains for lifting purposes -- Medium tolerance sling chains -- Grade 4, stainless steel

This document specifies the requirements for medium tolerance sling chains of grade 4 from stainless steel for use preferably in chain slings of grade 4 from stainless steel or for other lifting purposes. The range of nominal diameter, dn, covered by this document is from 4 mm to 22 mm. These sling chains are round steel short link chains with a nominal pitch, pn = 3 × dn, electrically welded, solution-annealed and tested. They are for use in the temperature range ?100 °C to +400 °C. They comply with the general conditions of acceptance of ISO 1834. NOTE 1 Because sling chains are solution-annealed in the finished condition, they can be used without restrictions with regard to the corrosion resistance of the steels according to 5.2. Higher grades of stainless steel chains are achieved by cold drawing of the wire prior to the chain manufacturing. Therefore, solution annealing is not possible without reduction of strength. The weld seam, in particular, represents a critical area with regard to the corrosion resistance. NOTE 2 Resistance butt welding and flash welding are listed in ISO 4063.

Chaînes de levage en acier de section ronde à maillons courts -- Chaînes de élingue de tolérance moyenne -- Classe de qualité 4, acier inoxydable

General Information

Status
Published
Publication Date
29-Aug-2018
Current Stage
6060 - International Standard published
Start Date
03-Aug-2018
Completion Date
30-Aug-2018
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ISO 1835:2018 - Round steel short link chains for lifting purposes -- Medium tolerance sling chains -- Grade 4, stainless steel
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INTERNATIONAL ISO
STANDARD 1835
Second edition
2018-08
Round steel short link chains for
lifting purposes — Medium tolerance
sling chains — Grade 4, stainless steel
Chaînes de levage en acier de section ronde à maillons courts —
Chaînes de élingue de tolérance moyenne — Classe de qualité 4, acier
inoxydable
Reference number
ISO 1835:2018(E)
ISO 2018
---------------------- Page: 1 ----------------------
ISO 1835:2018(E)
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© ISO 2018

All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may

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ii © ISO 2018 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 1835:2018(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Dimensions, masses and designation ............................................................................................................................................. 2

4.1 Dimensions and masses .................................................................................................................................................................. 2

4.2 Designation ................................................................................................................................................................................................ 4

5 Requirements .......................................................................................................................................................................................................... 5

5.1 General ........................................................................................................................................................................................................... 5

5.2 Material ......................................................................................................................................................................................................... 5

5.3 Heat treatment ........................................................................................................................................................................................ 5

5.4 Surface condition .................................................................................................................................................................................. 5

5.5 Dimensions ................................................................................................................................................................................................. 5

5.5.1 Diameter ................................................................................................................................................................................. 5

5.5.2 Pitch ............................................................................................................................................................................................ 5

5.5.3 Width ......................................................................................................................................................................................... 5

5.5.4 Weld dimensions ............................................................................................................................................................. 5

5.5.5 Length dimensionally affected by welding ................................................................................................ 6

5.6 Working load limit (WLL) .............................................................................................................................................................. 6

5.7 Mechanical properties ...................................................................................................................................................................... 6

5.7.1 General...................................................................................................................................................................................... 6

5.7.2 Manufacturing proof force (MPF) ..................................................................................................................... 7

5.7.3 Breaking force (BF) ....................................................................................................................................................... 7

5.7.4 Bend deflection, f ............................................................................................................................................................ 7

5.7.5 Total ultimate elongation, A .................................................................................................................................. 7

6 Tests ................................................................................................................................................................................................................................... 7

6.1 General ........................................................................................................................................................................................................... 7

6.2 Size of lot ...................................................................................................................................................................................................... 7

6.3 Sampling ....................................................................................................................................................................................................... 7

6.4 Dimension test ........................................................................................................................................................................................ 7

6.5 Tensile test .................................................................................................................................................................................................. 8

6.5.1 Testing machine ................................................................................................................................................................ 8

6.5.2 Procedure ............................................................................................................................................................................... 8

6.6 Bend test ....................................................................................................................................................................................................... 8

6.6.1 Testing machine ................................................................................................................................................................ 8

6.6.2 Procedure ............................................................................................................................................................................... 8

7 Marking .......................................................................................................................................................................................................................... 9

7.1 Grade marking ......................................................................................................................................................................................... 9

7.2 Manufacturer’s marking ................................................................................................................................................................. 9

7.3 Traceability marking .......................................................................................................................................................................... 9

8 Manufacturer’s certificate .......................................................................................................................................................................... 9

9 Use ....................................................................................................................................................................................................................................10

10 Environmental aspects ................................................................................................................................................................................10

Annex A (informative) Bases for calculation .............................................................................................................................................11

Annex B (informative) Mass of sling chains................................................................................................................................................14

Annex C (informative) Force-deflection-diagram ................................................................................................................................15

Bibliography .............................................................................................................................................................................................................................17

© ISO 2018 – All rights reserved iii
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ISO 1835:2018(E)
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 111, Round steel link chains, chain slings,

components and accessories, Subcommittee SC 1, Chains and chain slings.

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.

This second edition cancels and replaces the first edition (ISO 1835:1980), which has been technically

revised. The main changes compared to the previous edition are as follows:
— change of material requirements towards stainless steel;

— modernization of the document structure and layout, following the structure already implemented

in the latest publications of ISO/TC 111/SC 1;
— consideration of current nominal diameters of chain and requirements;
— environmental aspects have been considered.
iv © ISO 2018 – All rights reserved
---------------------- Page: 4 ----------------------
INTERNATIONAL STANDARD ISO 1835:2018(E)
Round steel short link chains for lifting purposes —
Medium tolerance sling chains — Grade 4, stainless steel
1 Scope

This document specifies the requirements for medium tolerance sling chains of grade 4 from stainless

steel for use preferably in chain slings of grade 4 from stainless steel or for other lifting purposes.

The range of nominal diameter, d , covered by this document is from 4 mm to 22 mm.

These sling chains are round steel short link chains with a nominal pitch, p = 3 × d , electrically

n n

welded, solution-annealed and tested. They are for use in the temperature range –100 °C to +400 °C.

They comply with the general conditions of acceptance of ISO 1834.

NOTE 1 Because sling chains are solution-annealed in the finished condition, they can be used without

restrictions with regard to the corrosion resistance of the steels according to 5.2. Higher grades of stainless steel

chains are achieved by cold drawing of the wire prior to the chain manufacturing. Therefore, solution annealing

is not possible without reduction of strength. The weld seam, in particular, represents a critical area with regard

to the corrosion resistance.
NOTE 2 Resistance butt welding and flash welding are listed in ISO 4063.
2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any amendments) applies.

ISO 1834, Short link chain for lifting purposes — General conditions of acceptance

ISO 7500-1, Metallic materials — Calibration and verification of static uniaxial testing machines — Part 1:

Tension/compression testing machines — Calibration and verification of the force-measuring system

ISO 13385-1, Geometrical product specifications (GPS) — Dimensional measuring equipment — Part 1:

Callipers; Design and metrological characteristics

ISO 16143-2, Stainless steels for general purposes — Part 2: Corrosion-resistant semi-finished products,

bars, rods and sections
3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 1834 apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https: //www .iso .org/obp
— IEC Electropedia: available at http: //www .electropedia .org/
© ISO 2018 – All rights reserved 1
---------------------- Page: 5 ----------------------
ISO 1835:2018(E)
4 Dimensions, masses and designation
4.1 Dimensions and masses

The bases for calculation of the values for the dimensions listed in Table 1 are given in Annex A.

The bases for calculation of the values for the mass per metre listed in Table B.1 are given in Annex B.

The nominal diameter, d , of the sling chain corresponds to the nominal diameter of the steel wire as

presented in ISO 16124, or bar as presented in ISO 1035-1, from which the sling chain is made.

Preferred nominal diameters are given in Table 1, column 1. Other nominal diameters may be used,

provided the corresponding dimensions and tolerances are calculated in accordance with Annex A.

Table 1 — Dimensions
Dimensions in millimetres
1 2 3 4 5 6 7 8 9
Diameter Pitch Width Weld dimension
d p Internal External Internal
Nominal Tolerance Nominal Tolerance Type 1 Types 1 Type 2 Types 1 Type 2
and 2 and 2
d p w w w 2r G
n n 1 2
...

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