Nicabbq

Heat Resistant Material

Recommended Posts

Nicabbq    0

I need a reccomendation on a heat resistant material for temp up to 300 degrees. Will be used in solar water heater. Should be readily available and inexpesive.

Share this post


Link to post
Share on other sites
Bender    132

Steel, aluminum, casting iron, stone...

If you go for glass, I'd recommend pyrex.

 

What shape does it need to have? What are other requirements?

Share this post


Link to post
Share on other sites
DrP    355

What part of your solar water heater do you need this material for? Heat conductive material is best for housing the pipes - that way any heat absorbed by it from the sun can conduct through the pipes into the water easily. You can insulate the body of the the unit, but heat conductivity is what is needed between the pipes and the heat capture sheet/housing.

 

The use of 'squashed' copper piping painted black improves the absorption too iirc. Black for obvious reasons (it absorbs the heat), squashed slightly so that a larger surface area of pipe gets incident rays and thus more absorption of energy.

Share this post


Link to post
Share on other sites
fresh    5

Glass.

how come glass is heat-resistant ? My glass mug was broken in steaming pot.

Share this post


Link to post
Share on other sites
DrP    355

Was it cold when it was put in the steamer? Was it a thin glass mug? The glass here that John suggests would be much thicker and wouldn't be going through fast temperature changes.... extreme temperature changes throughout the year, yes, but slow changes that wouldn't cause it to shatter.

Share this post


Link to post
Share on other sites
John Cuthber    3200

how come glass is heat-resistant ? My glass mug was broken in steaming pot.

How hot was the glass when it was made?

Share this post


Link to post
Share on other sites
fresh    5

no need extreme temperature.

I never challenge steamed eggs with any glassware/porcelain afterwards。

glassware is not heat-resistant, stainless steelware is.

Share this post


Link to post
Share on other sites
DrP    355

Depends on the glass.

Share this post


Link to post
Share on other sites
Bender    132
Posted (edited)

The mug probably wasn't borosilicate glass (aka pyrex), which is the kind of glass oven ware or lab equipement is made of.

"Regular" glass is definitely not heat resistent.

 

But even heat resistent glass isn't as heat resistent as metals.

Edited by Bender

Share this post


Link to post
Share on other sites
John Cuthber    3200

The mug probably wasn't borosilicate glass (aka pyrex), which is the kind of glass oven ware or lab equipement is made of.

"Regular" glass is definitely not heat resistent.

 

But even heat resistent glass isn't as heat resistent as metals.

That rather depends on the metal: ever seen a "mercury in glass" thermometer?

...

glassware is not heat-resistant, ...

A lot of laboratory work shows that you are wrong.

Share this post


Link to post
Share on other sites
Bender    132

That rather depends on the metal: ever seen a "mercury in glass" thermometer?

 

Why do you ask? Do you think mercury is a common construction material? ;)

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now