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Re: Stainless steel design code?

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There is a "code" (a specification actually) for cold-formed stainless
steel structural members.  It is ASCE 8-02 "Specification for the Design
of Cold-Formed Stainlesss Steel Structural Members" (I have the 1990
version but current version 2002).  ASCE 8-90 is referenced by the 2000
IBC and I believe that ASCE 8-02 is referenced by the IBC 2003.


Adrian, MI

On Tue, 22 Jun 2004 THunt(--nospam--at) wrote:

> James,
> The welds should be in conformance with AWS D1.6, Structural Welding Code
> - Stainless Steel.  The material properties are probably in (although I
> have not actually looked)  ASTM A276, Standard Specification for Stainless
> Steel Bar and Shapes.  I am not aware of a design code specific to
> stainless steel but below is a previous response to the question from Rick
> Drake.
> Thomas Hunt, S.E.
> ABS Consulting
> You could safely use the ASD (or LRFD) Manual as long as you understand
> the
> technical basis behind each design equation and make appropriate
> adjustments to them.  Conservative factors of safety would be good.
> For example, stainless steel does not have the same stress-strain curve
> shape as carbon steels.  The stress-strain curve is not linear.  Therefore
> the modulus of elasticity is determined based on offset methods, much as
> it
> is with very high strength carbon steel.  In addition, the published
> stainless steel yield stress values are almost meaningless, since the
> stress strain curve usually has no flat plateau.  Therefore any ASD (Or
> LRFD) design equation that includes either E or F-sub-y must be used with
> great caution.  This includes limiting b/t and h/t ratios that are defined
> in terms of F-sub-y.
> Equations that involve inelastic buckling include considerations of
> residual stresses, and are often calibrated against full-scale test
> results
> of rolled-sections.  If you build up w-shapes out of plates, you will have
> larger residual stresses.  You need to adjust the compression member and
> flexural member equations to account for larger residual stresses.
> I'd also be careful about bolted connection bearing equations.  They are
> actually based on elongation of the bolt holes, not material fracture.
> Welded connections should be designed in accordance with AWS not AISC.
> Rick Drake, SE
> Fluor Daniel, Aliso Viejo, CA
> Jim Wilson <wilsonengineers(--nospam--at)>
> 06/22/2004 02:14 PM
> Please respond to
> <seaint(--nospam--at)>
> To
> seaint(--nospam--at)
> cc
> Subject
> Stainless steel design code?
> What code does the design of stainless steel (gr 304) angles and welds
> fall under?  Can AISC be used with proper material properties?
> TIA,
> James Wilson, PE
> wilsonengineers(--nospam--at)
> Stroudsburg, PA
> Do you Yahoo!?
> New and Improved Yahoo! Mail - 100MB free storage!

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