Working load T8 grade: 2t-80t; S6 grade: 0.5t-55t.
T8 grade is high quality structural alloy steel; S6 grade is structural alloy steel.
The maximum testing load is 2times of the working load, the minimum breaking load is 4 times of working load.
About the bearing capacity of 2t-80t, T8 grade is 40%-100% up higher than the S6 grade in the same dimension.
The products in accordance with the technical requirements and testing methods of ISO2415-2004.