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Despite the title this is a serious question. Necrons are made of metal, but unlike the vehicles of the Imperium where human pilots are aboard and hence can have air-conditioning and whatnot to remain at a cool temperature, the Necrons are the metal themselves. Would this mean that in very hot climates, they could suffer from heat-related problems? Is there any fluff detailing how they endure extreme temperatures?

Suncream can double as lubricating oil,so yes the do use ut

commander dante wrote:
Suncream can double as lubricating oil,so yes the do use ut

Necro-lube?

Living Metal can withstand laser temperatures. Furthermore, Necrons completely destroy any piece of life on any given planet, leaving it a barren wasteland, i.e. being super hot.

Now think about your question.

It would be unlikely unless the temperature was far above that an organic would not be able to survive. Metal expands and contracts at different rates which may cause a problem at joints, with pistons, etc. Cyclical stresses of heat loading and unloading could also cause fatigue. In addition, whatever circuits that make up the necron may be impacted by temperature.

However, as they are essentially self repairing I would not think that they would have a particular issue with excess temperature up to maybe a couple of hundred degrees.

 Sigvatr wrote:
Living Metal can withstand laser temperatures. Furthermore, Necrons completely destroy any piece of life on any given planet, leaving it a barren wasteland, i.e. being super hot.

Now think about your question.

Metal can, but electrical components can't. Why do you think satellites are covered? Heat and cold can play havoc on electrical components.

Davor wrote:

 Sigvatr wrote:
Living Metal can withstand laser temperatures. Furthermore, Necrons completely destroy any piece of life on any given planet, leaving it a barren wasteland, i.e. being super hot.

Now think about your question.

Metal can, but electrical components can't. Why do you think satellites are covered? Heat and cold can play havoc on electrical components.

Are they electrical? full of solder that can melt?

 Wulfmar wrote:

commander dante wrote:
Suncream can double as lubricating oil,so yes the do use ut

Necro-lube?

That does not sound very good, lol.

Recently tabled a Necron army that used Lucas electrics.... Sorry, just had to say it.

 Commander Jimbob wrote:
Would this mean that in very hot climates, they could suffer from heat-related problems?

No. Given that necron technology tends to be regarded in universe as super science that defies attempts at explanation, the kind of environmental extremes that might have an affect on their operation would be well beyond the range of tolerable for anything else as well.

Tomb blades serve as a good example, as they're used as space superiority craft as well as ground attack, which means they can shrug off the heat, cold, and other rigors of the vacuum without worry.

Given the insane level of Technology the Necrons have, I imagine they've solved a problem as trivial as cooling. They perfected technology billions of years ago.

Necrons, the original inventors of liquid cooling for CPUs....

 Bookwrack wrote:


Tomb blades serve as a good example, as they're used as space superiority craft as well as ground attack, which means they can shrug off the heat, cold, and other rigors of the vacuum without worry.

If there's one thing I like about the new Necron book, its that Tomb Blades have been retconned from "actually stupider than canoptek robots despite being real Necrons" to "Erratic and masterful fliers."

Of course, that does imply that they should have Hard to Hit and the ability to switch Skyfire on and off, but the they really would be broken.

Wouldn't matter either way.

Their warranties will have given out centuries ago, so even if they did melt there's no way you'd get your money back.

This all well and good, but I was hoping for some fluff reference too. I do seem to recall now the third edition codex talking of the Necrontyr's homeworld being exposed to a burning star, so I suppose it would make sense that the C'Tan would create their new forms in a manner able to withstand said star.

 Commander Jimbob wrote:
This all well and good, but I was hoping for some fluff reference too. I do seem to recall now the third edition codex talking of the Necrontyr's homeworld being exposed to a burning star, so I suppose it would make sense that the C'Tan would create their new forms in a manner able to withstand said star.

Old fluff. What the Necrontyr homeworld was like is largely irrelevant, since they had a star-spanning empire by the time the C'Tan showed up.

 Zed wrote:
Wouldn't matter either way.

Their warranties will have given out centuries ago, so even if they did melt there's no way you'd get your money back.

Unless they got their stuff from Costco. Costco warranties don't expire.

Ok I will try my best to answer this question, but applying real life science to a fantasy setting cause someone to shoot some puppies or something.

In any case, all elements with the galaxy based upon our periodic table have a freezing and melting point whether it be incredibly high or incredibly low. Now to determine what Necrons are affected by we must take what we know from lore in order to determine these points and see how they are affected by them,. First we can use Damnos as an example the planet is described as an icey wasteland, provided that its not made of alien ice that never melts we can assume the planet is a minimum of 32 degrees Fahrenheit minimum at all time. That is being generous some areas are described as having perma frost as well as windchill so its easily possible that the planet can reach zero degrees. Throughout thisentire period there is no mention of necrons slowing or freezing or even being affected by the cold even in the middle of a blizzard. That being said they have a very high cold tolerance, but what sbout heat? We might be able to figure that out from the same book oddly enough, Nick Kyme describes the necrons Reanimation Protocol as the metal turning into a liquid type substance that reforms around the broken necron (I do not know an exact page number) since the melting point of a solid is the same as the freezing point of a liquid it would be reasonable to suggest that if they have control over its ability to form a solid or liquid that even if they did reach a melting point they could simply just have the metal continuously re harden the metal so it never actually melts unless so overwhelmed they simply phase out.

Then again this is all based upon the premise they self repair by using a liquid self repair similar to the robot from terminator 2, but there is also evidence to say they self repair through a type of reconstruction similar to how Iron Giant does. If you consider that titanium has a melting point of 3034 degrees Fahrenheit, and that living metal was actually described in 3rd edition to harden its necrodermis to withstand melta attacks, it could be argued that if they even did have a melting point it would be absurdly high.

It cannot be really explained with real life science as we have no idea what Living Metal actually is. It certainly isn't any kind of material known to men. But, as stated before, a metal that can withstand the energy / heat of a melta or laser will not be impressed by mere sunlight.