Metal Tubing Strength and Weight Comparison Chart?

Click For Summary

Discussion Overview

The discussion revolves around the comparison of metal tubing materials, specifically steel and aluminum, in the context of building a motorcycle lift table. Participants explore the strength, weight, and structural considerations involved in selecting appropriate tubing for this application.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant, identifying as an Industrial Designer, seeks a chart comparing tubing materials, sizes, strengths, and weights for constructing a motorcycle lift table.
  • Another participant suggests referring to the Machinery's Handbook as a resource for this information.
  • It is noted that depending on the grade of steel and aluminum, some aluminum tubes may match the yield strength of steel but will be significantly lighter, although they may deform more under stress.
  • A further contribution highlights that motorcycle lift tubes will face various stresses, including bending, shear, and torque, complicating the selection process. The participant recommends sketching the design and sharing it for guidance on appropriate resources and tables.

Areas of Agreement / Disagreement

Participants express differing views on the suitability of aluminum as a substitute for steel, particularly regarding deformation under stress. The discussion remains unresolved regarding the best approach to selecting tubing materials for the lift table.

Contextual Notes

Limitations include the potential complexity of cross-referencing various design parameters and the need for specific tables or resources to ensure safety in the design.

Who May Find This Useful

Individuals involved in industrial design, engineering, or DIY projects related to structural applications may find this discussion relevant.

Mucci
Messages
1
Reaction score
0
I'll preface this with saying I'm an Industrial Designer, not an engineer. I also build workshop furniture as a hobby, which this question is in reference to.

I'm building a motorcycle lift table. I'm curious, is there a chart that compares things like tubing material, size, strength and weight?

i.e. If I wanted to replace a steel tube frame with aluminum I could use this chart to figure out what diam/wall tube I would need to be comparable in strength and if there would be any weight savings in doing so.
 
Engineering news on Phys.org
Machinery's Handbook.
 
  • Like
Likes   Reactions: billy_joule
Depending on the grade of steel versus aluminum , some aluminum tubes of the same dimensions as steel tubes will have the same yield strength but with a much lighter weight. But the aluminum will deflect or deform three times greater than steel, which often ( but certainly not always) rules it out as a substitute.
 
With a motorcycle lift, you will have tubes that will experience a variety of stresses, including bending, shear, and even torque, which are all separate design parameters. You might be able to find tables for each individual design parameter, but it will be come frustrating quickly trying to cross reference all the tables to make sure your table is safe. I would recommend sketching it out and posting here so that we can point you to the correct tables/resources to make sure your table doesn't collapse.
 

Similar threads

  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 2 ·
Replies
2
Views
7K
Replies
1
Views
4K
  • · Replies 3 ·
Replies
3
Views
71K
  • · Replies 7 ·
Replies
7
Views
14K
Replies
12
Views
4K
Replies
19
Views
3K
  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 3 ·
Replies
3
Views
15K
  • · Replies 3 ·
Replies
3
Views
2K