Good resource for TTT/CCT diagrams for Stainless Steels?

[Buckeyefan]

Does anyone know of a good resource for TTT/CCT diagrams for Stainless Steels?

My boss asked if there were any resources that would be of help to me. I checked out the ASM site and found the "Atlas of Time-Temperature Diagrams for Irons and Steels," but after finding the table of contents online it doesnt have enough Stainless data for my needs. We do have the "Heat Treater's Guide" but it only covers some of the Stainless Steels we use. I was hoping someone might know of a good source for this type of data.

 

[EdStainless]

transformation for what?
What alloys?
There are such curves for martensitic SS alloys.
But not for single phase austenitic or ferritic alloys.
Unless you are talking about the formation of detrimental secondary phases.

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Plymouth Tube

 

[Buckeyefan]

In particular Martensitic SS and Precipitation Hardening SS, and for Duplex SS and for other detrimental phases in Austenitic SS as well.

I am a recent grad, so I guess I am not really sure what I am looking for. I am working on heat treatments, mostly annealing not as much aging, and trying to find whatever will help. The "Heat Treater's Guide" is helpful, but there are some grades, such as Duplex SS, that it doesn't include. And because it just gives recommended practices, it is difficult for me to decide if our practices are achieving the same result or if something should be changed.

 

[metengr]

Buckeyefan;
Just trying to be honest and from the wording in your post you sound like you have no direction, and no direction means a waste of precious time and resources in trying to move forward.

You need to sit down with your boss and obtain some direction. First, I would suggest you do some background reading to understand the behaviors of the alloys and proper practices are very important to achieve desired end results.

Based on your post I have no clue what you are trying to achieve. Is it welding, forming? What?

 

[arunmrao]

Buckeyefan,Fresh from college,you must be current with the course work. Surprising that you did not refer to ASM Handbook on Stainless Steels. Are you engaged with a heat treater ? Much of the advice given above are for your benefit.

_____________________________________
"It's better to die standing than live your whole life on the knees" by Peter Mayle in his book A Good Year

 

[Buckeyefan]

Sorry, I should have been more specific. We have run into some issues with a couple of our Martensitic grades, I am checking into whether the issue is with the annealing and heat treating. I found some basic information on the grades in question including suggested heat treatments, however was looking for TTT or CCT diagrams to be able to check and see if what we were doing was getting the same results. Many of our heat treatments are similar to but differ from the suggested process. I did talk to my boss and found what I needed in this case, however there were other grades including Austenitic, Duplex, and PH grades that I couldn't find much more than suggested annealing and aging temperatures.

I am looking for a source I would be able to use in the future. My first instinct was TTT/CCT diagrams would be most helpful, but I don't really know what would be the most helpful for these other grades. I am not working on a specific problem for any Austenitic or P-H steels, but would like a convenient resource that I could use when I do.

 

[EdStainless]

Most of these charts are in various specialty handbooks for each type of alloy.
You can find these books at ASM or at NiDI.
Start collecting and reading.

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Plymouth Tube

 

[Buckeyefan]

Thanks for the help