Need help about MP35N

[salmon2]

Experts,

Want to use MP35N for one component and the component needs to comply with NACE0175 and API 6A, and also satify structural analysis viewpoint. The material Spec I am thinking is:

min YS: 230 ksi
min TS: 240 ksi
min elongation: 15%
min RoA: 20%
min CVN at zero degree C: 20 ft-lb
max HRC: 51

Material will be cold-reduced and then 4 h aging at 704C(1300F). Is this possible? I am personally a bit concerned with elongation. Right now min YS is from my stress analysis, fixed; others are from those NACE and API standards, fixed also. I do have several more heat treatment options after cold-reducing as follow:
----------------------
Aging period, min Temperature
4 732C (1350F)
6 774C (1425F)
4 788C (1450F)
2 802C (1475F)
1 816C (1500F)

Can anyone recommend a heat treatment condition which will satify requirement?

Thanks a bunch
Salmon2

 

[salmon2]

Sorry one typo:

the above min CVN value should be 20 J (15 ft-lb).

 

[TemperedMartensite]

Salmon, from experience, you may be specing something that no one in the world can produce ....at the very least it could have a very, very long lead time (+1 year). This forum may help prvide guidance, but you really need to talk to a mill and have them on-board when trying to acheive these requirements.

 

[metengr]

Since this alloy is supplied by Carpenter, talk to them directly.

 

[TemperedMartensite]

Actually, lots of people supply MP35N. As described Salmon is looking for cold reduced/cold drawn material. I know that Latrobe and Allvac have supplied in the past.