ISO 3076:2012

Name: ISO 3076:2012 — Round steel short link chains for general lifting purposes — Medium tolerance sling chains for chain slings — Grade 8
SKU: ISO 3076:2012
Price: 25 EUR
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Round steel short link chains for general lifting purposes — Medium tolerance sling chains for chain slings — Grade 8

Название (английский):

ISO 3076:2012

Round steel short link chains for general lifting purposes — Medium tolerance sling chains for chain slings — Grade 8

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 17
Дата публикации:: 18 июня 2012 г.
Издание:: ISO IS 3076 edition 3 version 1
ICS:: 53.020.30

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Описание (английский):

ISO 3076:2012 specifies the requirements for medium tolerance sling chains of grade 8 for use in chain slings and for general lifting purposes. They are round steel short link chains, electrically welded, heat treated and tested; they comply with the general conditions of acceptance of ISO 1834. The range of nominal sizes covered by ISO 3076:2012 is from 4 mm to 45 mm. They are for use in the temperature range of minus 40 °C to to plus 400 °C.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 3076:2012 specifies requirements for round steel short link sling chains - Grade 8 (medium tolerance) intended for chain slings and general lifting purposes. It covers electrically welded, heat-treated and tested short-link chains in nominal sizes from 4 mm to 45 mm, designed to operate in the temperature range –40 °C to +400 °C. Chains complying with ISO 3076 must also meet the general conditions of acceptance of ISO 1834.

Key topics and technical requirements

Scope and sizes: Nominal material diameters covered: 4 mm to 45 mm; dimensions, pitch and widths are defined with tolerances.

Chain types and weld limits: Two link types (Type 1 and Type 2) are defined with maximum permitted weld oversize - typically ≤10% in all directions for Type 1; Type 2 allows ≤10% perpendicular to the plane and ≤25% in other planes to maintain functioning and clearance.

Material and metallurgy:

Steel produced by electric or oxygen-blown processes.
Fully killed steel with controlled sulfur, phosphorus and specified alloying (nickel, chromium, molybdenum where applicable) to ensure toughness and low-temperature ductility.
Aluminium content required to stabilize against strain-age embrittlement.

Heat treatment: Hardened from above the Ac point and tempered - tempering at ≥400 °C for 1 hour is required (verification procedures included).

Mechanical and safety tests:

Working Load Limits (WLLs), Manufacturing Proof Force (MPF) and Breaking Force (BF) are specified per nominal size (see standard tables).
Total ultimate elongation minimums (e.g., 20% for natural black finish).
Bend deflection requirements for individual links and toughness verified by Charpy/impact testing (ISO 148-1, ISO 14556).
Sampling, lot size and verification procedures for MPF, BF and impact tests are detailed.

Marking and certification: Grade marking, identification and inspection marking rules and manufacturer’s certificate requirements are included.

Applications and users

ISO 3076 is directly applicable to:

Chain sling manufacturers and component suppliers for producing Grade 8 sling chains.

Rigging and lifting equipment designers, procurement/specifiers, and safety engineers who select chains for overhead lifting, hoisting and material handling.

Inspection and testing laboratories performing mechanical and impact verification.

Asset owners and fleet managers who require certified chain slings for safe lifting operations.

Practical benefits include consistent WLL determination, assured weld quality, validated low-temperature performance, and traceable marking and certification for compliance and safety.

Related standards

ISO 1834 - Short link chain general conditions of acceptance

ISO 3056 - Use and maintenance of chain slings

ISO 148-1, ISO 14556 - Charpy/impact test methods

ISO 16124, ISO 1035-1, ISO 643, ISO 7500-1 - material, dimensional and testing references

Keywords: ISO 3076, Grade 8 sling chains, short link chains, chain slings, working load limit, manufacturing proof force, breaking force, heat treatment, weld diameter, lifting safety.

ISO 3076:2012

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Applications and users

Related standards

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