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ASTM A466-07(R2020) pdf free download

ASTM A466-07(R2020) pdf free download.Standard Specification for Weldless Chain
1. Scope
1.1 This specification covers weldless chain suitable for applications where a light and flexible chain is required. The material may be steel, brass, or bronze. 1.2 Seven classes of chain are covered: 1.2.1 Class SL—Single-loop chain. 1.2.2 Class DL—Double-loop chain. 1.2.3 Class SH—Sash chain. 1.2.4 Class SF—Plumbers’ chain. 1.2.5 Class SJ—Single-jack chain. 1.2.6 Class DJ—Double-jack chain. 1.2.7 Class RG—Register chain. 1.3 The values stated in either SI units or in other units shall be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two system shall not be combined. 1.4 This international standard was developed in accor- dance with internationally recognized principles on standard- ization established in the Decision on Principles for the Development of International Standards, Guides and Recom- mendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
3. Terminology
3.1 Definitions ofTerms Specific to This Standard: 3.1.1 breaking force, minimum, n—minimum force in pounds or newtons at which the chain, during manufacture, has been found by representative testing to break when a constantly increasing force is applied in direct tension. Discussion—This test is a manufacturer’s attribute acceptance test and shall not be used as criteria for service. 3.1.2 lot, n—for the purpose ofacceptance testing, a lot shall consist of 3000 ft [1000 m] or fraction, thereof, of the same grade and size chain. If a continuous length of chain exceeds 3000 ft, it shall also be considered a lot. 3.1.3 working load limit (WLL), n—maximum combined static and dynamic load in pounds or kilograms that shall be applied in direct tension to an undamaged straight length of chain.
4. Ordering Information
4.1 It shall be the responsibility of the purchaser to specify all requirements that are necessary for material ordered under this specification. Such requirements to be considered include, but are not limited to, the following: 4.1.1 Product to conform to Specification A466/A466M and year of issue, 4.1.2 Class of chain, 4.1.3 Material size or trade size of chain, 4.1.4 Material of chain (steel, brass, or bronze), 4.1.5 Quantity of chain in feet [metres], 4.1.6 Length of each piece, if required, 4.1.7 Finish, if required,4.1.8 Certification of test(s), if required, and 4.1.9 Acceptance of inspection by purchaser, if required.
5. Materials and Manufacture
5.1 The selection of the base material is left to the judgment of the individual chain manufacturer provided that the chain complies with the requirements contained within this specifi- cation. 5.2 The methods utilized to produce the chain are left to the judgment of the individual chain manufacturer provided the chain complies with the requirements contained within this specification.
6. Dimensional Requirements
6.1 The chain shall conform to the dimensional require- ments as specified in Tables 1-7. The tolerance is 67 % from the specified nominal dimensions for all chain classes except Class SF. Class SF has a maximum length criterion. The inside length dimension can be measured either by individual link or by measuring the span of 100 links and dividing by 100. 6.2 Material Diameter/Thickness—The diameter or thick- ness ofthe material from which the chain is manufactured shall be at least the dimension shown in Tables 1-7, subject to the normal commercial tolerances listed in Specifications A29/ A29M, A366/A366M, A569/A569M, and B248. Oversized material may be used for all applications.
7. Finish
7.1 The manufacturers may apply a surface treatment or finish of their own choice for identification or corrosion resistance unless otherwise specified by the customer in the purchase order. The surface treatment or finish shall not alter the chain in a manner that would cause the chain to not meet the other provisions of this specification.

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