Material weights.

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earthwormjim
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Material weights.

Post by earthwormjim »

Hi all.
It's me!
I am after some material weights. Has such a thing been covered?
Specifically I am after the weight of P20 tool steel.
I have found a figure of:
Density (lb / cu. in.) 0.283

But I have a measurement in sq mm.
Any help much appreciated.

Hi.
thank you please

Mr James Blunden
Imagination Engineer :o
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razerdave
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Re: Material weights.

Post by razerdave »

0.283lb per cubic inch = 7.83g per cm cubed
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earthwormjim
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Re: Material weights.

Post by earthwormjim »

razerdave wrote:0.283lb per cubic inch = 7.83g per cm cubed
Cheers Dave. You rock! :)
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EpicentrE
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Re: Material weights.

Post by EpicentrE »

Steel: Varies a lot, but around 0.0078 - 0.0080g/mm3
Ali: 0.0028g/mm3
Polycarb: 0.0012g/mm3
Titanium: 0.0046g/mm3

Numbers are half from memory, half from Solidworks.

To convert from lb/in3 into g/mm3, type into Google:

0.283lb/cubic inch into g/cubic mm

Hope this helps!
Scott Fyfe-Jamieson, Captain of Epic Robotics. Champion of AWS38/41/42.
http://www.epicrobotics.co.uk
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earthwormjim
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Re: Material weights.

Post by earthwormjim »

Thanks chaps.
That is perfectly clear,and makes absolute sense.
I still need to do a bit of research to find the answer I am looking for, but I am a lot closer than I was, thank you! :)
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earthwormjim
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Re: Material weights.

Post by earthwormjim »

okay. A little more help needed!
I have the volume plugin for sketchup, and it works fine for basic shapes, but not for anything that I really need the volume for.
Is there any way to caculate the volume of a non basic sketchup model?
Ta Muchly!
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EpicentrE
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Re: Material weights.

Post by EpicentrE »

Jim,

If you can export it into something that I can read with Solidworks (DXF, STL, IGS, STP?) I can see if I can import it and give you a volume and weight measurement. Unless it's super secret, that is ;).
Scott Fyfe-Jamieson, Captain of Epic Robotics. Champion of AWS38/41/42.
http://www.epicrobotics.co.uk
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earthwormjim
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Re: Material weights.

Post by earthwormjim »

EpicentrE wrote:Jim,

If you can export it into something that I can read with Solidworks (DXF, STL, IGS, STP?) I can see if I can import it and give you a volume and weight measurement. Unless it's super secret, that is ;).
Now thats an idea! I will give it a go. Thanks Scott.
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earthwormjim
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Re: Material weights.

Post by earthwormjim »

Thanks all.
Thanks to a suggestion from Haz. I have found an easy (ish) way of doing it.
Uploading the model to shapeways. Then you can edit the model, and get a volume value, in cm cubed. Yay.
Thanks for everybody's help. This is a great place to be hanging around, as always. :)
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earthwormjim
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Re: Material weights.

Post by earthwormjim »

During the process,I found a nice add-on for sketchup that outputs .STL too. Seems like it works well with Shapeways, for starters. :)
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