Shear Strength of Stainless Steel 1

[drawoh]

How do I find the shear stress of stainless steel? I have found a reply on

http://wiki.answers.com

that quotes .577[σ]_u, but I do not know how reliable this is. None of the handbooks quote it, and neither does Matweb.com.

Is there something weird about stainless steel that I need to know?

--
JHG

 

[TVP]

I assume you referring to the ultimate shear strength? This is usually ~0.6*UTS. If you search Eng-Tips for octahedral shear stress, you will find previous threads that discuss this topic.

 

[MikeHalloran]

There are books about just how weird it is, but the first problem you'll run into is that it work hardens, a lot.

Browse the Special Metals website for more detail than you can stand.
Then do the same for Allegheny Ludlum and Outokumpu and Carpenter Technology.





Mike Halloran
Pembroke Pines, FL, USA

 

[EdStainless]

If you are talking about annealed 300 alloys then the low yield and high work hardening make them rather strain rate dependent.
For either a cold worked SS or a PH grade I would take 58% of UTS and be happy.

= = = = = = = = = = = = = = = = = = = =
Plymouth Tube

 

[metengr]

http://www.roymech.co.uk/Useful_Tables/Matter/shear_tensile.htm

 

[drawoh]

EdStainless,

Thank you.

The screws are holding mounting feet onto an airborne rack that must survive a 9G crash. How would that strain rate affect everything?

--
JHG

 

[johnSchwaner]

I believe NASA's Fastener Design Manual shows:
Alloy and carbon steels ultimate shear stress = 0.6 Ftu
Stainless steels ultimate shear stress = 0.55 Ftu

 

[mfgenggear]

http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19900009424_1990009424.pdf

NASA design Manual

HTH
Mfgenggear

 

[mfgenggear]

JohnSchwaner

Good find

Mfgenggear

 

[mfgenggear]

well it appears the link is down & can not be reconnected.
I happen to downloaded yesterday.

so I am set.

Mfgenggear