This document specifies the requirements, methods of rating and testing of single, double, three and four leg welded chain slings of grade 8 using components such as sling chains according to ISO 3076 together with links according to ISO 16798, hooks according to ISO 7597 and forged components according to ISO 8539. NOTE 1 For special lifting purposes not covered by this document, additionally intermediate links can be used, for example to connect components to each other having different working load limit. The range of nominal diameter, dn, covered by this document is from 4 mm to 45 mm. Chain slings according to this document are for use in the temperature range ?40 °C to +400 °C according to ISO 3056. NOTE 2 Concerning the use and maintenance of chain slings of grade 8, see ISO 3056. Chain slings according to this document comply with the general conditions of acceptance of ISO 1834 and are used for symmetrically distributed loads only. NOTE 3 For rating of chain slings with asymmetrically distributed loads, see ISO 3056. This document does not apply to mechanically joined chain slings. NOTE 4 For mechanically joined chain slings, see ISO 7593.

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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.

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ISO/TR 21704:2017 contains investigations and investigation results on toughness of round steel link chains, tested with sub-size specimens. It applies to round steel link chains for hand operated chain hoists of grade TH and VH and for sling chains used for chain slings of grade 8. NOTE 1 Associated International Standards are ISO 16877, ISO 16872 and ISO 3076. In future it is intended to implement the results on toughness derived in this document in new standards. Eleven steels, provided by four manufacturers, were tested to find a test regime on sub-size specimens and requirements on the notch impact toughness values at design temperature which resulted out of the tests. These requirements are adjusted to the toughness values of full size ISO-V specimens. NOTE 2 The requirements are also valid for other cross sections of the chain than round.

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ISO 16872:2014 specifies the requirements for fine-tolerance hoist chains of grade VH for use as load chains in hand operated chain hoists for 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. NOTE 1 The letter "V" expresses the grade in accordance with ISO 1834. NOTE 2 The letter "H" expresses that these hoist chains are for hand operated hoists only. NOTE 3 Resistance butt welding and flash welding are listed in ISO 4063. The range of nominal sizes covered by this International Standard is from 3 mm to 13 mm. Fine-tolerance hoist chains, according to this International Standard, are for use in the temperature range −10 °C to 150 °C.

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ISO 16877:2014 specifies the requirements for fine-tolerance hoist chains of grade TH for use as load chains in hand operated chain hoists for 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. NOTE 1 The letter "T" expresses the grade in accordance with ISO 1834. NOTE 2 The letter "H" expresses that these hoist chains are for hand operated hoists only. NOTE 3 Resistance butt welding and flash welding are listed in ISO 4063. The range of nominal sizes covered by this International Standard is from 3 mm to 13 mm. Fine-tolerance hoist chains, according to this International Standard, are for use in the temperature range −10 °C to 200 °C.

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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.

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ISO/TR 23602:2005 presents an investigation to quantify the required material toughness for the operational safety of round steel chains.

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This International Standard specifies requirements for fine-tolerance hoist chain of Grade T (types T, DAT and DT) for use with manually operated or power-driven chain hoists1). It is applicable to electrically welded, round, steel short-link chain, heat-treated and tested in accordance with the general conditions of acceptance of ISO 1834, in the nominal chain size range from 3 mm to 22 mm. NOTE Type T chain, but not type DAT or DT, may be used in lifting equipment other than chain hoists. Chain of grades TH and VH, intended specifically for use in hand-operated hoists, will be the subject of future International Standards.

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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.

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Specifies the requirements, methods of rating and testing of single, two, three and four branch (or leg) chain slings assembled by methods other than welding. Does not apply to chain slings assembled by welding (see ISO 4778), to slings designed to have branches of unequal nominal reach, to endless slings, or to slings designed for special applications.

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This second edition cancels and replaces the first edition (ISO 3056:1974), of which it constitutes a technical revision. Constitutes a guide to the selection, use, inspection, testing, maintenance and repair of non-calibrated, round steel, short link chains and chain slings. Lifting chains and chain slings may be governed by national and local laws and regulations.

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Specifies the main principles for the use, inspection, in-service testing and maintenance of chains operating over chain wheels. The principal applications include manual and power driven hoists. Lifting chains may be governed by national and local laws and regulations.

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ISO 16877:2008 specifies the requirements for fine-tolerance Grade TH hoist chains, for use as load chains in manually operated chain hoists. It is applicable to these round steel short link chains, electrically welded and heat treated, tested to and compliant with the ISO 1834 general conditions of acceptance. The range of nominal sizes of hoist chains covered by ISO 16877:2008 is from 3 mm to 13 mm. They are for use in the temperature range -10 °C to 200 °C.

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ISO 16872:2008 specifies the requirements for Grade VH, fine‑tolerance hoist chains, for use as load chains in manually operated chain hoists. It is applicable to these round steel short link chains, electrically welded and heat treated, tested to and compliant with the ISO 1834 general conditions of acceptance. The range of nominal sizes of hoist chains covered by ISO 16872:2008 is from 3 mm to 13 mm, for use in the temperature range -10 °C to 150 °C.

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This second edition, which cancels and replaces ISO 3077:1980, incorporates draft Amendment 1. Specifies the requirements for lifting chains, grade T (8), non-calibrated, for use on cranes, in chain slings and for general lifting purposes. These are electrically welded round steel short link chains, fully heat treated and tested complying with ISO 1834. The range of sizes covered is from 5 to 45 mm. The annex gives a range of temporary additional sizes 6 to 35 mm.

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This second edition, which cancels and replaces ISO 3077:1980, incorporates draft Amendment 1. Specifies the requirements for lifting chains, grade T (8), accurately calibrated, for use as load chain in chain hoists and similar appliances. These are electrically welded round steel short link chains, fully heat treated and tested complying with ISO 1834. The range of sizes covered is from 4 to 20 mm. The annex gives a range of temporary additional sizes 6 to 19 mm.

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Specifies the requirements, methods of rating and testing of single, two, three and four branch (or leg) welded chain slings. Does not apply to mechanically joined slings or welded slings having branches of unequal nominal reach.

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Specifies the requirements for lifting chains, grade M (4), non-calibrated, for use on cranes, in chain slings and for general lifting purposes. These are electrically welded round steel short link chains, fully heat treated and tested complying with ISO 1834. The range of sizes covered is from 5 to 45 mm. The annex gives a range of temporary additional sizes 6 to 46 mm.

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Specifies the requirements for lifting chains, grade S (6), non-calibrated, for use on cranes, in chain slings and for general lifting purposes. These are electrically welded round steel short link chains, fully heat treated and tested complying with ISO 1834. The range of sizes covered is from 5 to 45 mm. The annex gives a range of temporary additional sizes 6 to 30 mm.

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