Strongest Steel: Ultimate Tensile Strength 5 GPa

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SUMMARY

The strongest steel identified in the discussion has an ultimate tensile strength (UTS) exceeding 5 GPa, as referenced from MatWeb. This steel is utilized in critical applications such as punches, dies, and cold extrusion tools, which are essential in manufacturing processes. The comparison with titanium, specifically the Ti 6-4 alloy with a UTS of approximately 1 GPa, highlights the superior strength of this steel. The discussion confirms the validity of the steel's strength and its significant industrial applications.

PREREQUISITES
  • Understanding of ultimate tensile strength (UTS)
  • Familiarity with material properties of steel
  • Knowledge of industrial applications for high-strength materials
  • Basic comprehension of aerospace materials, particularly titanium alloys
NEXT STEPS
  • Research advanced steel alloys with UTS over 5 GPa
  • Explore applications of high-strength steels in manufacturing
  • Investigate the properties and uses of titanium alloys in aerospace
  • Learn about the testing methods for measuring ultimate tensile strength
USEFUL FOR

Materials scientists, mechanical engineers, and professionals in manufacturing and aerospace industries will benefit from this discussion, particularly those focused on high-performance materials and their applications.

lemd
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Hi,

What is the strongest steel?

I did a quick search and found this steel with ultimate tensile strength over 5 GPa. Is it possible or just a mistake because at much lower per weight than that, titanium is used in aerospace industry, while this steel application seems consist nothing important:
http://www.matweb.com/search/datasheet.aspx?matguid=638937fc52ca4683bc0c3f18f54f5a24

Regards.
 
Engineering news on Phys.org
From the cited link:

Applications: punches, dies for blanking, piercing dies, forming rolls and dies, cold heading, steel mill rolls, cold extrusion, slitter knives, shears, pelletizer blades, nozzles, woodworking tools, cold extrusion barrels, cold extrusion liners, plastic injection molds, compacting tools


Those seem pretty important applications.
 
lemd said:
Is it possible or just a mistake because at much lower per weight than that, titanium is used in aerospace industry

The most common aerospace alloy Ti 6-4, has a UTS of about 1 GPa, not 5GPa.
 

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