I'd say no, but he is able to manipulate a lot of weird things and could most likely find a way to indirectly affect non-ferrous materials.

If you wish to know the limits of Magneto's powers i suggest you read through this site. It contains a lot of information also to your question of his of power on non-magnetic materials.

iam preety sure hes stated he controls all metal even if it magenetic or not,  this could be worked out far easier if we knew if admantuim for example or vibranuim where magneteic since hes influenced both in the past , and since there indestructable would make sence there none reactive as well and possibly none magnetic.

Yes it does. Because all atoms contain electromagnetic fields which hold the protons to the neutron and electrons, and therefore hold atoms together into molecules, etc., magnetism can be used to manipulate anything. 
 
A RL Example: 
http://www.hfml.ru.nl/levitate.html  
 
For more real science on what someone who can control electromagnetism could do:
 
  http://www.magnetowasright.com/pages/analysis/the-science-of-magneto.php
 
EDIT: Oops, I see Dupe beat me to it.

He shouldn't be able to... but he does.  In fact, the range of his magnetism is probably one of the few things in the Marvel Universe that would give Squirrel Girl a run for her money :p

No. Scientifically in RL, electromagnetism is one of the most prevelant and obvious forces in the universe. It is responsible for most  of the physics you observe in day to day life.  
 
Stan Lee did not know how powerful he was making the character when he created him, but *just* by giving Magneto control over electromagnetism, one of the Four Fundamental Forces of the Universe, he made Magneto one of the most powerful characters in the M.U. 
 
I do suggest checking out the link to my site here. It explains why Magneto can do what he can do.

I suggest that you understand teh nature of the Marvel Universe, thenyou would know that Squirrel Girl would still defeat him.

*chuckle* 
 
Well, she's Squirrel Girl. She can defeat Galactus is she wanted to.

Well little late but Pania is right. Being able to manipulate electromagnetism he is technically able to effect any and everything. It's basic scientific theory. So if he exerts himself enough he should be able to throw wood around if he wanted to..

He can just manipulate the magnetic wave

Magnetism isnt limited to metal... 
theres diamagnetism... and the connection to weak and strong... and gravity 
  
if magneto was to ever reach his full potential... 
id reckon hed be able to take on galactus and win

Magneto has complete control over the entire electro magnetic spectrum.          %Pr

"Magneto has complete control over the entire electro magnetic spectrum.          %Pr "

@Pania: Just for the heck of it, no. You're all wrong, everone who agrees with Pania is wrong. Magneto can't control anything but ferrous metals, if his power is only over ferromagnetism. :P

I think he could control pretty much everything by controlling the magnetic field around it, even non metallic objects. Everything has such a magnetic field around it caused by gravity. By manipulating this field he can, though indirectly, manipulate pretty much everything. That is one of the reasons he is often shown flying.

" @Satyrquaze: Gamma Rays are a product of nuclear explosions, and as such yes. He deflected the blast of two tactical nukes during Magento War. "

"I think he could control pretty much everything by controlling the magnetic field around it, even non metallic objects. Everything has such a magnetic field around it caused by gravity. By manipulating this field he can, though indirectly, manipulate pretty much everything. That is one of the reasons he is often shown flying. "

i don't think he can unless we are considering the limitless possibilities of the comic world. put magneto in a non metallic environment and he's a lame duck thats how they managed to keep him in jail in Xmen movie

That is dumb, the moment the cars turned up he would of used them to destroy Reed. Anyway he can manipulate all materials, he isnt made of metal but he still flies doesnt he?

"

@Pania: Just for the heck of it, no. You're all wrong, everone who agrees with Pania is wrong. Magneto can't control anything but ferrous metals, if his power is only over ferromagnetism. :P

"

" @cracks: 
 
The point is: Has he? "

Magnetic field can never be separated from electric field, he actually control the  electromagnetic force, one of the basic force in the the universe.  Even magnetic field alone can influence the motion of charged particle(That's how lightsabres work). Remember even on the cover of the first issue he was able to generate magnetic orb to defend  both optic blast and snowballs?

Yes, and yes and yes, but lol @ this thread...  
 
Magneto, not a Magnet power guy. Mr Fantastic can also be not so fantastic some times too. Thing can be referred to as being rocky like with his powers. 

Really if Magneto could only use magnetism, literally creating and manipulating it, he could easily do a lot of things. If he can lift a metal ship he should have no problem encasing a nonmagnetic object with a hyperstrong magnetic field. Hyperstrong magnetic fields are diamagnetic, they repel nonmagnetic stuff. Meaning that he could crush or smash nonmagnetic materials if he wanted too. But the writers tend to ignore this and give him all types of powers he should'nt even have. If I wrote him he would be limtited to moving and bending ferromagnetic materials. Nonmagnetic materials he would be able to smash or crush, nothing more. Because allowing more makes him an everything goes telekinetic, and he is not supposed to be that.

How is Magneto not supposed to be like he's been depicted since his inception? Scientists have suspended frogs in mid-air using magnets, which means Magneto should be able to do something similar. And of course, his powers means he could move the magnetic field, which is how he can fly, amongst other things. Every single thing he does involves manipulating the EM field in some form. If he were simply a giant magnet like depicted in the movies (unfortunately) or if he were Dr. Polaris from DC, you'd have some sort of point.

He has manipulated ferrous and non-ferrous metals before.

@satyrquaze: magneto has on more than one occasion created Radiatin and manipulated it like it was nothing he once melted a door by creating radiation. they never said what type but he still created the radiation

He can affect gravity,fire lightning bolts,kill by manipulating iron in people's blood. One of the most watered down villian in comics.

Didn't Charles Xavier say in the first movie that Magneto can control metal

So Magneto can move plastic also?

So does this technically make him a matter manipulator in general?

No it's a good question, Well like mentioned before because I agree, which is why I always back Magneto up (alot of people in Marvel based battles) leave out physics and science and what electro magnetism is per say. I know it is fantasy in terms of the Marvel debates but electromagnetism is still electromagnetism so the rules still apply regardless of debate and and whos right or whos wrong. In thoery there's no reason magneto cannot manipulate things such as wood, plastic and other non metalic materials (in-directly) because electromagnetism is in all materials and elements to different degrees and it does bind and hold atoms and bonds together and matter itself has a lot of connections to electromagnetism. There's no evidence to suggest magneto can or cannot (simply absorb say the incredible hulks energy period regardless of what version of hulk it is and kill him) because gamma radiation is on the electromagnetic spectrum and theat's magento's speciality. There's my other thoery could he defeat ironman in a suit supposidly immune to magneto's magnetical powers (my answer is he wouldn't have to think to fuck ironman up) even if ironman was in a palstic suit of amour or a substance magneto cannot directly control. Let me explain.

So basically it is true the human body itself has iron which we all know he can control, but that's just one factor, the human heart and brain both produce electromagnetic feilds (i'm sure many know this) so there's my point that what is stopping him from shutting your brain off or causing a sudden massive heart faliure which kill mostly anyone on a general basis, No he cannot control plastic directly but the suit would only act as a means to stopping him control, ironmans outer shell, it'd do absolutely nothing agaisnt his ability to manipulate electromagnetic feilds which likei said are created by the heart and brain themsleves. In theory going by the laws of science and physics we could argue that potnetially speaking magneto can technically destroy, control or even manipulate the universe itself (that's only if we assume himself or another on his power level could advance themselves or master their ability to such a degree they'd be consideed god-like. This is also why i sometimes argue that Storm could defeat magneto or in theory (hyperthetically) equil or even best him because she has the ability to manipulate electromagnetism to degrees alongside nature/weather. I also think she'seriously underestimated but I won't say too much people seem to go crazy on the matter lol.

This isn't me saying that this is factual, nor an I stating evidence to suggest anything I said is possible for Magento to be capible of, i'm just going with how basic science works so in that case potentially magneto can do what the damn hell he wants on a scientific bias.

Yes, according to the official handbook of the marvel universe, mag can control ALL metals.