Chassis material selection, lighter grades of MS

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SUMMARY

The discussion focuses on finding lighter alternatives to mild steel AISI 1018 for car chassis construction, while adhering to the requirement of using mild steel. Participants suggest considering Chrome-Moly steel as a potential option, which offers greater torsional rigidity and is commonly used in chassis applications. Additionally, using larger diameter tubes with thinner walls is proposed as a method to reduce weight while maintaining structural integrity. The conversation emphasizes the need for affordable and readily available materials in southern India.

PREREQUISITES
  • Understanding of mild steel properties, specifically AISI 1018
  • Knowledge of Chrome-Moly steel and its applications in chassis design
  • Familiarity with torsional rigidity concepts in structural engineering
  • Basic principles of heat treatment processes for steel
NEXT STEPS
  • Research the properties and applications of Chrome-Moly steel in automotive chassis
  • Explore techniques for optimizing tube diameter and wall thickness for weight reduction
  • Investigate heat treatment processes suitable for enhancing the performance of mild steel
  • Look into local suppliers of alternative steel grades in southern India
USEFUL FOR

Automotive engineers, chassis designers, and materials specialists seeking to optimize vehicle weight and performance while adhering to material constraints.

CorvetteAB
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Hey folks,

My team currently uses mild steel aisi 1018 for their car chassis. While it is OK, we are looking for lighter alternatives. Problem is that we have to use mild steel ONLY. So I was wondering if any of you could give me a good alternative for 1018 that is lighter, has greater torsional rigidity and is cheap and easily available. Please mention the grade, and any heat treatment processes followed.
For information, we are based in India. South India basically. So anywhere near southern parts of India would be a great suggestion.

Thanks in advance.
 
Engineering news on Phys.org
A lot of chassis are built from Chome-moly steel.. don't know if that qualifies in your rule book...

Sometimes using a larger diameter tube with thinner walls can decrease weight while increasing rigidity... just a thought.
 

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