The DA-007 is an assembly of a welded master link and two secondary links (for example FD-16 with 2 × FD-13), with DNV certification (offshore). It is made of welded quenched and tempered alloy steel, tested and manufactured in accordance with DNV-ST-E271, DNV-ST-E273 and EN 1677-4, with a design factor of 5:1. It covers working load limits (WLL) of 4.1–45 tonnes at a β angle of 0–45°, and impact resistance is verified by Charpy testing (42 joules at -40°C for the normal section, 27 joules for the welded section).
Features
- Welded alloy steel, quenched and tempered.
- Tested and manufactured in accordance with DNV-ST-E271, DNV-ST-E273 and EN 1677-4.
- Charpy tested in accordance with DNV-ST-E271.
- Certified by DNV-ST-E271 and DNV-ST-E273.
- Design factor 5:1.
- Proof load tested to 2.5 times the Working Load Limit (WLL).
- Fatigue rated to 20,000 cycles at 1.5 times the Working Load Limit (WLL).
- Magnaflux crack detection is performed 100% on each batch.
- Charpy test of 42 joules (31 ft-lb) at -40°C (-40°F) for normal section.
- Charpy test of 27 joules (20 ft-lb) at -40°C (-40°F) for welded section.
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