Precision cast T316 vs 2205 vs 17-4
Precision cast T316 vs 2205 vs 17-4
(OP)
We are currently producing a precision cast parts in T316 stainless, a customer is requesting for more strength for the part. We have heard about 2205 and 17-4 stainless but in bars or sheets, not much info on these 2 materials in precision cast form.
Does any one has any idea how much more strength will gain percentage wise from T316 to 2205 and from T316 to 17-4.
Also the comparison of the corrosion resistance for these 3 materials.
Does any one has any idea how much more strength will gain percentage wise from T316 to 2205 and from T316 to 17-4.
Also the comparison of the corrosion resistance for these 3 materials.





RE: Precision cast T316 vs 2205 vs 17-4
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RE: Precision cast T316 vs 2205 vs 17-4
2205 duplex is approx 70ksi
316 is approx 30ksi yield but ultimate is 70ksi
17-4 is a total bear to machine
RE: Precision cast T316 vs 2205 vs 17-4
CD4MCu typically as 110 ksi tensile and 80 ksi yield, much stronger than 316, but not as strong as 17-4PH sst. But much easier to get. Also, properties for 17-4PH sst vary with heat treatment.
RE: Precision cast T316 vs 2205 vs 17-4
You would also need to require A923 to assure that the parts are correctly heat treated.
The duplex grades will give you higher strength than 316 and better corrosion resistance without making the part very difficult to manufacture.
You cannot use a duplex at temperatures over 600F or below -40F. Other than that caution you should be good to go.
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Plymouth Tube
RE: Precision cast T316 vs 2205 vs 17-4
RE: Precision cast T316 vs 2205 vs 17-4
RE: Precision cast T316 vs 2205 vs 17-4
Corrosion & Rust Prevention Control