Suggest some suitable materials

@mechky-jbqpJD • Oct 27, 2024

Oct 27, 2024

921

I need some suggestions regarding alternative material for a high pressure seamless gas cylinder. The present material of cylinder is Si-Mn Steel and is to be replaced by another lightweight material that provides similar or better mechanical properties.

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vikaskumar11233

@vikaskumar11233-J10JeV • Jun 16, 2012

The other material which can be used is Manganese ,Chromium and Molybdenum (34Mn2V, 30CrMo, 34CrMo4 ).
nibhani

@nibhani-wLU5Ju • Jun 16, 2012

u can use magnus and cromium...
mechky

@mechky-jbqpJD • Jun 16, 2012

I need some materials with yield strength>200Mpa and density<7g/cc.
Some other constraints are - corrosion resistance & stability at high temperatures(around 150 degree celsius).
zaveri

@zaveri-5TD6Sk • Jun 17, 2012

how about nickel-steel ?
mechky

@mechky-jbqpJD • Jun 20, 2012

zaveri
how about nickel-steel ?
Nickel Steel alloys are basically Stainless Steels. Stainless Steels have Yield Strength of about 600Mpa and density of 7-8g/cc. So, it is similar to the present material which is Si-Mn steel and won't result in any significant weight reduction, if implemented.
Ramani Aswath

@ramani-VR4O43 • Jun 20, 2012

There are many fibre reinforced composites that may stand your duty. PEEK is suitable but expensive.
You can look at ULTEM - Polyetherimide resin from SABIC. It has a yield strength close to what you want, excellent high temperature properties and a very low density.
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CE Designer

@ce-designer-BWq0yl • Jun 21, 2012

There is a software called CES Edupack, I dont know if you have heard of it but it can be used to select materials based on criteria you specify. I am not sure if there is a trial version out there but if you can get your hands on it it would help you.
Read up on it a bit:
<a href="https://www.grantadesign.com/news/news/2012/edupack2012.shtml" target="_blank" rel="nofollow noopener noreferrer">Page Not Found :(</a>
mechky

@mechky-jbqpJD • Jun 21, 2012

CE Designer
There is a software called CES Edupack, I dont know if you have heard of it but it can be used to select materials based on criteria you specify. I am not sure if there is a trial version out there but if you can get your hands on it it would help you.
Read up on it a bit:
<a href="https://www.grantadesign.com/news/news/2012/edupack2012.shtml" target="_blank" rel="nofollow noopener noreferrer">Page Not Found :(</a>
Yes, I came to know about that software in 'Material Selection in Mechanical Design' book by Michael Ashby. While searching for it on google, I found another useful website - matbase.com which also allows to search for materials according to specified criteria. Anyways, thanks for your suggestion.