Brand: VENIT/OEM
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EN818-7 G80 Alloy Load Chain for Chain Block
Definitions to European Standard EN 818-7
For the purposes of this Part of EN 818,the following definitions apply:
1. nominal size: Nominal diameter of the round section steel wire or bar from which the chain is made.
2. material diameter: Diameter of the material in the chain link as measured.
3. weld diameter: Diameter at the weld as measured.
4. length dimensionally affected by welding: Length on either side of the center of the link, affected by welding.
5. pitch: Internal length of a link as measured.
6. manufacturing proof force(MPF) of chain: Force to which during manufacture the whole of the chain is subjected.
7. breaking force( BF): Maximum force which the chain withstands during the course of a static tensile test to destruction.
8. working load limit (WLL) of chain: Maximum mass which the chain hanging vertically is authorized to sustain in general lifting service.
9. total ultimate elongation (A): Total extension at the point of fracture of the chain expressed as a percentage of the internal length of the test sample.
10. processing: Any treatment of the chain subsequent to welding, for example, heat treatment, polishing or dimension calibration.
11. lot: Specified quantity from which test sample(s) is/are selected.
12. competent person: A designated person, suitably trained qualified by knowledge and practical experience, and with the necessary instructions to enable the required examination to be carried out.
| Nominal Size | Pitch | External Width | Internal Width | Working Load Limit | Manufacturing Proof Force | Min. Breaking Force | Min. Bend Deflection | Weight |
| D | L | B | b | |||||
| mm | mm | mm | mm | t | kN | kN | mm | kg/m |
| 4.0 | 12.0 | 13.2 | 5.2 | 0.5 | 12.6 | 20.1 | 3.2 | 0.349 |
| 5.0 | 15.0 | 16.5 | 6.5 | 0.8 | 19.6 | 31.4 | 4.0 | 0.545 |
| 6.0 | 18.0 | 19.8 | 7.8 | 1.1 | 28.3 | 45.2 | 4.8 | 0.785 |
| 7.0 | 21.0 | 23.1 | 9.1 | 1.5 | 38.5 | 61.6 | 5.6 | 1.069 |
| 8.0 | 24.0 | 26.4 | 10.4 | 2.0 | 50.3 | 80.4 | 6.4 | 1.396 |
| 9.0 | 27.0 | 29.7 | 11.7 | 2.5 | 63.6 | 102.0 | 7.2 | 1.849 |
| 10.0 | 30.0 | 33.0 | 13.0 | 3.2 | 78.5 | 126.0 | 8.0 | 2.181 |
| 12.0 | 36.0 | 39.6 | 15.6 | 4.5 | 113 | 181.0 | 9.6 | 3.251 |
| 13.0 | 39.0 | 43.0 | 17.0 | 5.3 | 133 | 212.0 | 10.0 | 3.689 |
| 16.0 | 48.0 | 55.5 | 23.5 | 8.0 | 201 | 322.0 | 13.0 | 5.571 |
| 18.0 | 54.0 | 61.0 | 25.0 | 10.0 | 254 | 407.0 | 14.0 | 7.154 |
| 20.0 | 60.0 | 68.0 | 28.0 | 12.5 | 314 | 503.0 | 16.0 | 8.641 |
| 22.0 | 66.0 | 73.5 | 29.5 | 15.0 | 380 | 608.0 | 18.0 | 10.391 |
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