ISO 1834:1999

Name: ISO 1834:1999 — Short link chain for lifting purposes — General conditions of acceptance
SKU: ISO 1834:1999
Price: 25 EUR
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Short link chain for lifting purposes — General conditions of acceptance

Название (английский):

ISO 1834:1999

Short link chain for lifting purposes — General conditions of acceptance

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 12
Дата публикации:: 14 октября 1999 г.
Издание:: ISO IS 1834 edition 2 version 1
ICS:: 53.020.30

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Описание (английский):

This International Standard specifies the general conditions of acceptance for electrically welded round steel short link chain for lifting purposes. It includes medium tolerance chain for use in chain slings and for general lifting purposes, and fine tolerance chain for use with chain hoists and other similar lifting appliances. It is applicable to short link lifting chain in accordance with ISO 1835, ISO 3075, ISO 3076 and ISO 3077.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 1834:1999 - "Short link chain for lifting purposes - General conditions of acceptance" defines the acceptance criteria for electrically welded round-steel short link chain used in lifting. The standard covers both medium-tolerance chain (for chain slings and general lifting) and fine-tolerance chain (for chain hoists and similar appliances). It specifies manufacturing, testing and inspection requirements to ensure mechanical integrity, traceability and safe use of short link lifting chain.

Key topics and technical requirements

Scope and chain grades: Chains are graded to reflect mechanical properties rather than just material strength. Grades in the series include M(4), P(5), S(6), T(8), V(10) with corresponding mean stresses (e.g., M = 400 N/mm², P = 500 N/mm², S = 630 N/mm², T = 800 N/mm², V = 1 000 N/mm²).

Dimensions and tolerances: Material diameter, pitch, link length and weld-affected zones are measured and controlled to specified tolerances. Material diameter is measured as the mean of two orthogonal readings away from the weld.

Material and heat treatment: Material selection and heat treatment must meet the requirements of the appropriate chain-specific ISO standard to achieve required mechanical properties.

Manufacture and weld quality: Weld finish (smooth or asymmetric), weld placement, and prohibition of undercut at the weld are required. Fins from welding must be removed per the finish type.

Manufacturing Proof Force (MPF): Finished chain must be subjected to an MPF after heat treatment and processing; chains are inspected for defects and articulation after proofing.

Mechanical tests:

Static tensile test to determine Breaking Force (BF) and total ultimate elongation (A); samples are normally 5 links plus grips.
Bend test using a specified mandrel diameter (typically twice nominal chain size) and V-block geometry.
Sampling rules apply by lot; sample counts vary with nominal wire diameter.

Surface condition, marking and certification: Finished condition includes any coating; marking (grade and additional data) and a manufacturer’s certificate are specified.

Test equipment: Annex A gives requirements for chain testing machines and references ISO 7500-1 for verification of force-measuring systems.

Applications and users

Intended for chain manufacturers, quality managers, test laboratories, lifting equipment designers, procurement and inspection personnel, and safety/maintenance engineers who specify, produce, test, or inspect short link lifting chain for slings, hoists and general lifting applications.

Use cases: specifying acceptance criteria for delivered chain, establishing factory test procedures (MPF, tensile, bend), and ensuring compatibility of chain grades with hooks and accessories.

Related standards

ISO 1835, ISO 3075, ISO 3076, ISO 3077 (chain product standards referenced by ISO 1834)

ISO 7500-1 (verification/calibration of testing machines)

Keywords: ISO 1834:1999, short link chain, lifting chain acceptance, manufacturing proof force, breaking force, bend test, chain grades, chain testing, chain slings, chain hoists.

ISO 1834:1999

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Applications and users

Related standards

Технические детали

ISO 7500-1:2018

Metallic materials — Calibration and verification of static uniaxial testing machines — Part 1: Tension/compr…

BS ISO 1835:2018

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

ISO 3075:1980

Short link chain for lifting purposes — Grade S (6) non calibrated, for chain slings etc.

ISO 3076:2012

Round steel short link chains for general lifting purposes — Medium tolerance sling chains for chain slings —…

ISO 3077:2001

Short-link chain for lifting purposes — Grade T, (types T, DAT and DT), fine-tolerance hoist chain

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