RR-C-271 Chains And Attachments, Carbon And Alloy SteelThis specification covers carbon and alloy steel chain of commercial quality together with the attachments most commonly used with this chain.

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RR-C-271F

4.4.2.8 Type XIV mechanical coupling links.

4.4.2.8.1 Proof test. Samples selected as specified in 4.2.2.2.1 shall be subjected to the proof loads as shown in table XXVI. The mechanical coupling links shall be visually examined following proof load testing.

4.4.2.8.2 Breaking load test. After proof testing, samples selected as specified in 4.2.2.2.1 shall withstand the breaking loads as shown in table XXVI.

4.4.2.8.3 Rejections. There shall be no evidence of damage or deformation following proof load testing. If any mechanical coupling links fails to pass the proof load or breaking load tests, the

lot shall be rejected.

4.4.2.9 Type XV end links.

4.4.2.9.1 Proof test. Samples selected as specified in 4.2.2.2.1 shall be subjected to the proof loads as shown in table XXVII. Before testing, the inside width of the end link shall be measured. After applying the proof load, the inside widths shall be re-measured and the sample shall be considered satisfactory if there is no measurable reduction in the inside width.

4.4.2.9.2 Breaking load test. After proof testing, samples selected as specified in 4.2.2.2.1 shall be subjected to the breaking loads as shown in table XXVII.

4.4.2.9.3 Rejections. If any sample link fails the proof or breaking test, the lot shall be rejected.

4.4.2.10 Type XVI chain master links.

4.4.2.10.1 Proof test. Samples shall be subjected to the applicable proof loads provided in

ASTM A952/A952M. The chain master links shall withstand the proof test.

4.4.2.10.2 Breaking load and Ductility tests. Samples subjected to the breaking load strength test shall exhibit permanent deformation of a dimension by more than 15 percent from its original condition.

4.4.2.10.3 Rejections. If any chain master link fails to pass the proof load, break load, or ductility tests, the lot shall be rejected.

4.5 Inspection of packaging. Sample packs and the inspection of presentation, packing and marking for shipment, stowage, and storage shall be in accordance with the requirements of section 5.