metal/alloy with melting point less than 100degreecelsius

Try here.

The alloy should be available in local market..

Hmmm, maybe if you told me where you are it would help?
We are not all psychic..
But I get the feeling you are in India... my crystal ball is now coulding over...please insert another £1

Del

Del,

(Here's $2, friggin' exchange rate and a weak dollar) What's the difference between Bendalloy and Wood's Metal? I'm assuming they're both eutectics of bismuth, and that's the real complication since bismuth will readily bond with aluminum (whoops aluminium).

Rules out Mercury as well.

milo

What about CerroSeal? It's Indium and Tin. I don't know how those might react with aluminum.

As you know, indium is very soft. Indium foil, indium wire is ideal for creating cryogenic vacuum seals. If there is any interest, please feel free to contact me for more details.

What you need is the Wood's metal or Wood's alloy.

http://www.thefreedictionary.com/Wood%27s+metal

In the US McMaster-Carr supply carries several Cerro alloys. There are many suppliers of alloys in the US and on the web. Cerro alloys has bismuth based alloys in many temperature ranges. Closest I see is 208°F. You're not going to find it in the local hardware store.

Bit of history, another use that these fusible metals were the manufacture of oddly shaped and difficult to form thin wall fuel tanks for aircraft during WWII, a positive master was cast of the fusible alloy, it was electroplated in order to build up the wall thickness. and then the whole thing was dunked in boiling water and the fusible alloy was poured out.

Hello midhunbabu,

I will paste a reply to your post below. Though though is other alloys with lower melting points.

jfmfit

BENDALLOY

Melting point, sharp : (Eutectic) 70° C

Weight : lb./in.³ 0.34 approx

Brinell hardness : 9.0

Max sustained load : 300 lbs/in.²

Uses

Bending rolled or extended sections

Press tools small or large

Casting for reproduction of fine detail

Gas tight seals

Fusible plugs and links

Bending thin-walled tubing in copper, brass, mild and stainless steel.

Protective shields used in radiotherapy

Bendalloy is the British equivalent of Cerrobend. It is exactly the same specification

thanks for the comments dear friends,

As someone briefed the history, i am from india working with a aerospace manufacturer.I are in search of an alloy, which can be melted and poured into a thin walled component of aluminum, so that this molten material will act as a support for the final machining in the atmospheric conditions.

After machining, I will dip the same in boiling water and will melt out this alloy, so that i will get the required thin walled/ flimsy aluminium component.

I will search for those alloys you guys suggested in our local market

regards

Midhun babu

Hello midhunbabu,

I looked for some alloys and the nearest I could find to what you require is a 70 degrees. I think it would melt in the heat of India.

Can you not get some alloy with a MP higher than you need and melt and mix it with the alloy I mention below? You could do this easily and adjust the amounts until you find the right MP.

jfmfit