How do I find the pressure capacity of a tungsten tube?

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Discussion Overview

The discussion revolves around determining the pressure capacity of a tungsten tube, specifically focusing on the material properties of tungsten compared to stainless steel. Participants explore theoretical aspects and material characteristics relevant to pressure resistance.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant inquires about the maximum pressure capacity (psi or atm) of a tungsten tube with 99.9% tungsten.
  • Another participant asks for the wall thickness and radius of the tube to provide a more accurate assessment.
  • A participant expresses interest in the general pressure resistance properties of tungsten compared to stainless steel, noting a lack of available information.
  • It is suggested to look up Young's Modulus or Elastic Modulus for both tungsten and stainless steel to understand their material properties.
  • One participant proposes comparing tensile strength as a means to gauge relative resistance, referencing a table of ultimate tensile strengths for both materials. They caution that this is a general idea and that the distribution of tensions and differences in elasticities may affect the results.
  • There is a note that tensile strength does not directly equate to the pressure of gas that would cause failure, as the relationship depends on the shape of the container.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the specific pressure capacity of tungsten tubes, and multiple viewpoints regarding material properties and their implications for pressure resistance are presented.

Contextual Notes

The discussion lacks specific dimensions for the tungsten tube, which may limit the applicability of the material properties discussed. Additionally, the relationship between gas pressure and material tension is noted to be dependent on the container's shape, which is not fully explored.

achilles89
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I am looking to find the maximum psi or atm capacity of a tungsten tube of 99.9% tungsten. How would I do this?
 
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how thick are the walls of the tube? And what is the radius of the tube?
 
I don't have a particular dimension of tube yet. I am more concerned with the general pressure resistance properties of tungsten as a material; I haven't been able to find much on how much pressure it can take when compared to a stainless steel tube of the same width/radius. Any ideas?
 
Look up Young's Modulus or Elastic Modulus (same thing) for both materials.
 
You can get a general idea regarding the relative resistance of the materials by comparing the tensile strength.
Here is a table that shows both steel and tungsten.
http://en.wikipedia.org/wiki/Ultimate_tensile_strength

However is just a very general idea. The distribution of the tensions in the is not uniform and the difference in elasticities may play a role too.
Besides, the tensile strength is not the pressure of the gas which will produce the breaking. The exact relationship between the pressure of the gas and the tension in the expanding walls depends on the shape of the container.
 

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