SS316 Clad Vessel vs SS316 Solid

• Jun 4, 2020

• #2

EdStainless

Materials

May 20, 2004

16,359

Waukesha WI USA

No, but in some cases it can help.
Still plenty of opportunity for localized tensile stress.
What temp?
Chemical?
Temp cycling?
Pressure/thickness?

= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, consulting work welcomed

 

Upvote 0 Downvote

• Jun 4, 2020

• #3

weldstan

Materials

Jun 24, 2011

2,806

US

If SCC does occur in the cladding, it will not lead to rapid failure of the vessel. Clad vs solid is chosen for this reason or for economic reasons. Remember that the stainless steel cladding can be roll clad, explosion clad, of weld overlayed.

 

Upvote 0 Downvote

• Jun 5, 2020

• #4

Guest

Tensile stresses sufficient to qualify for chloride SCC are a given, especially in a vessel. When doing failure investigations involving SCC I usually don't need to look very far to find potential sources of tensile stress, either residual or applied.

Differential thermal expansion between the stainless clad and the steel substrate causes significant interface shear stress all by itself.

"Everyone is entitled to their own opinions, but they are not entitled to their own facts."

 

Upvote 0 Downvote

• Jun 5, 2020

• #5

0707

Petroleum

Jun 25, 2001

3,444

PT

I agree with ironic metallurgist.

luis

 

Upvote 0 Downvote

• Jun 6, 2020

• #6

SJones

Petroleum

Apr 22, 2001

3,943

GB

1. No

2. No

Steve Jones
Corrosion Management Consultant

http://www.linkedin.com/in/drstevejones

All answers are personal opinions only and are in no way connected with any employer.

 

Upvote 0 Downvote