NACE MR-01-75 and Welding Stainless 316L
NACE MR-01-75 and Welding Stainless 316L
(OP)
The way NACE MR-01-75 has been explained to me is that it is basically is a hardness limit and grain structure requirement that is needed to protect material from sulfide corrosion.
If you have NACE MR-01-75 compliant stainless 316L material, and you weld this material, does it require heat treatment after welding to be compliant with NACE MR-01-75?
My opinion would be generally no, because you cannot harden 316L stainless by the heat exposure from welding, and it is 316L material, so it should be relatively insensitive to carbide precipitation.
If you have NACE MR-01-75 compliant stainless 316L material, and you weld this material, does it require heat treatment after welding to be compliant with NACE MR-01-75?
My opinion would be generally no, because you cannot harden 316L stainless by the heat exposure from welding, and it is 316L material, so it should be relatively insensitive to carbide precipitation.





RE: NACE MR-01-75 and Welding Stainless 316L
Steve Jones
Materials & Corrosion Engineer
http://www.linkedin.com/pub/8/83b/b04
RE: NACE MR-01-75 and Welding Stainless 316L
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"It's better to die standing than live your whole life on the knees" by Peter Mayle in his book A Good Year
RE: NACE MR-01-75 and Welding Stainless 316L
(several other names) stress cracking , of conventional steels (not austenitic). It did not address corrosion of any kind. However , who knows where ISO will take it?
TX RR Comission Forced its developement after an accident at an ARCO (former oil co.) wellhead killed several.
RE: NACE MR-01-75 and Welding Stainless 316L
Steve Jones
Materials & Corrosion Engineer
http://www.linkedin.com/pub/8/83b/b04
RE: NACE MR-01-75 and Welding Stainless 316L
Being on T1-F1 from about 1980 to 1995, I got indoctrinated to staying on point of only dealing with HSCC/SSCC when answering inquiries.
RE: NACE MR-01-75 and Welding Stainless 316L
RE: NACE MR-01-75 and Welding Stainless 316L
Steve Jones
Materials & Corrosion Engineer
http://www.linkedin.com/pub/8/83b/b04