Occurence: Onslaught: Marvel #1

The combined might of the X-Men, Avengers, and Fantastic Four could not even put a scratch in Onslaught's armor. The Hulk asks for a chance and also asks Jean Grey to "turn off" Bruce Banner, bringing out the Savage Hulk. Onslaught and the Hulk fight and Onslaught holds the Hulk down on the ground. The Hulk gets extremely mad and with one punch, cracks Onslaught's armor.

Hulk's Strength Feats

Incredible Feats of the Hulk Main Page