Hulk's limits are flexible, but he generally can't lift things that defy physics or worthiness, most famously Thor's Mjolnir due to its enchantment, though he's come close or even lifted it in specific comic scenarios when magic/worthiness rules change. He also can't easily break truly unbreakable materials like true adamantium, only bend or damage less pure versions, and can't lift things with inherent reality-bending properties, like the Infinity Gauntlet, notes a Stack Exchange post.
The Hulk Once Lifted 150BILLIONS of Tons in Marvel Comics. HE held an entire mountain range above his head for an extended period of time The Hulk got to prove his strength during Marvel's Secret Wars, holding an entire mountain on his back. That still wasn't heavy enough for The Hulk!
The answer; there isn't one. The amazing thing about the Hulk is that unlike nearly every other superhero ever created, the Hulk's strength has absolutely no upper limit. He can lift a commercial airplane – which weighs around 100 tons – when he is at his calmest; that's no problem for him.
For the 18000000th time, lifting Mjolnir is a matter of WORTHINESS and not physical STRENGTH. The Hulk cannot lift/wield Mjolnir because he has been deemed UNWORTHY; it isn't a matter of physical power.
While the Hulk is incredibly strong (even on a cosmic scale, in some cases), that doesn't mean he can't be out-muscled. In fact, 'super-strength' is a weakness that Hulk has succumbed to on many occasions throughout his Marvel Comics career.
The Hulk has admitted that The Void is the only thing he fears.
Hulk is the original Omega-Level Threat, proven by the chaos he caused in World War Hulk. The Phoenix Force is not only an Omega-Level Threat, but also an Extinction-Level Threat.
The enchantment, however, held that if Mjolnir left Thor's grasp or was removed from his person for more than 60 seconds, both would revert back to their mortal states until they were reunited.
This is further confirmed in Avengers: Endgame (2019), where Steve Rogers finally lifts Mjolnir fully, proving that he had been worthy all along.
He took the full force of a Star. He let Hulk have his run in Sakar, and then started to beat up Hulk with ease. Physically, Hulk is stronger. But Thor is more powerful overall, has 1000+ years of battle experience against foes like Hulk.
In terms of actual lifting he has been seen to bear weight on his back that frankly begars belief;
They can list Hulk as the physically strongest, but Thor still has the best strength feats in comics and he's the one who keeps Hulk in check.
In the official marvel handbook of strength it says Daredevil can lift 450 pounds. But when describing peak humans in the handbook it says Daredevil could lift 800 pounds.
The Hulk is capable of withstanding high caliber bullets, powerful energy blasts, pressures extremes, falls from orbital heights, maximized heat without blistering, maximized cold without freezing, and also massive impacts.
As these examples show, Spider-Man's strength reserve goes well beyond the textbooks. Marvel's handbooks might say “10 tons,” but in-story we've seen him lift 50, 100, even 200+ tons when pushed to the brink. Of course, those are extraordinary moments – not his day-to-day capabilities.
Magneto is a Omega level mutant with very powerful, very percise and mastery expert control over magnetism and magnetic fields. He can lift Mjolhnir by manipulating the fields the metal gives off. Magneto actually doesn't control metal itself, only the magnetic properties of metals.
Captain America has lifted it, as has Loki. However, one of the more surprising characters to lift Mjolnir was Deadpool - but unlike some of the others to wield the hammer, the moment wasn't as it initially appeared."
He knew Tony for a long time. They also fought in a lot of battles together. They were like brothers. On top of that he had all the previous things happened which probably made him even more sad when Tony died.
Avengers: Endgame
One super fact about Superman is that he once lifted 200 quintillion tons with just one hand in All-Star Superman #1 (2005).
Marvel's "Big 3" are Thor, Captain America and Iron Man. All heroes who bring something different and all important members of The Avengers. Marvel acknowledges this. Captain America is the leader and there is no doubt about that.
Omega level is a world level threat that's why. Logan can't effect the entire world with his skill set or powers. Where as storm can change the weather across the entire planet.
To summarize, the weakest superhero ever recruited by the Avengers was Delroy Garrett Jr., also known as Triathlon. Formerly a track star who competed in Olympic Games and won three gold medals, Garrett became a superhero when he found a mysterious object and gained the powers of 3-D Man.