We plan to conduct a tension test of some EWP specimen, the maximum load would be around 40 kN.

Now I am wondering for a tension wedge grip with the capacity of 50 kN, if the Pyramid Jaws (serrated) or Diamond coated Flat Jaws would suit the test better.

Some specifications for Jaws could be found at: https://www.admet.com/tensile-grip-jaw-selection/

Appreciate your help beforehand.

Regards, Yue