Page 148 - Green Pin Product Catalog

FOR GRADE 8 CHAIN Temperature > 400 °C -40 °F up to 392 °F Reduction for elevated temperatures
If extreme temperature situations occur, the following load reductions must be taken into account:

Temperature
Temperature
°Celsius
New Working Load Limit
°Fahrenheit
-40 °C up to 200 °C
100 % of original WLL
200 - 300 °C
392 - 572 °F
90 % of original WLL
300 - 400 °C
75 % of original WLL
572 - 752 °F
not allowed
> 752 °F
Note: P-6714A, P-6703A and P-6731 temperature range -20 °C up to +200 °C cannot be used above +200 °C.
Working Load Limit table for Grade 8 Chain Slings to EN 818-4
LIFTING SLING FITTINGS

Chain Ø
1 leg sling 2 leg sling 3 or 4 leg sling Endless
0°<ß ≤ 45° 45°<ß ≤ 60° 0°<ß ≤ 45° 45°<ß ≤ 60° Sling
90° Safety factor Safety factor Safety factor Safety factor Safety factor
1.4 1.0 2.1 1.5 1.6
mm t t t t t t
6 1.12 1.60 1.12 2.36 1.70 1.80
7 1.50 2.12 1.50 3.15 2.24 2.50
8 2.00 2.80 2.00 4.25 3.00 3.15
10 3.15 4.25 3.15 6.70 4.75 5.00
13 5.30 7.50 5.30 11.20 8.00 8.50
16 8.00 11.20 8.00 17.00 11.80 12.50
20 12.50 17.00 12.50 26.50 19.00 20.00
22 15.00 21.20 15.00 31.50 22.40 23.60
26 21.20 30.00 21.20 45.00 31.50 33.50
32 31.50 45.00 31.50 67.00 47.50 50.00

3 .2 When using multi leg slings make sure that the angles between the lifting points and sling legs are within
the range marked on the sling. The angle ß, which is the angle between the sling leg and the vertical,
should never exceed 60°.

Symmetry of loading

The WLL values mentioned are based on symmetrical loading of the sling. This means that when the load is
lifted, the sling legs are symmetrically distributed in the plane and all legs of the sling have the same angle to
the vertical. For more details on chain slings refer to EN 818-6:2000+A1:2008.
The loading can be assumed to be symmetric if all the following conditions are met:
• the load is less than 80% of marked WLL, and
• sling leg angles to the vertical are all more than 15°, and
• sling leg angles to the vertical are all within 15° to each other, and
• in the case of three- and four-leg slings, the plane angles are within 15° of each other.

If one of the above parameters is not met, the loading should be considered to be asymmetric, and the lift
should be referred to a competent engineer to establish the safe rating for the sling. Alternatively, in the case
of asymmetric loading, the sling should be derated to half the marked WLL. If the load tends to tilt during the
lift, it should be lowered, and the attachments changed by repositioning the attachment points or by using
compatible shortening devices. The safety factor of 4 on the individual components is designed for safety
only. Never exceed the indicated WLL.
Use the below reduction table if a multi leg sling is not used for the purpose for which it has been designed,
for example for a lifting operation with fewer legs than the number of legs of the sling:
Types of chain sling Number of legs used Factor to apply to marked WLL
Two-leg 1 1/2
Three- and four-leg 2 2/3
Three- and four-leg 1 1/3

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