Transcript Below:
What’s up guys? This is Michael with Michael Talks Metal, back for some more metal today. Before we jump in, if you find this video useful help out the channel and drop a like….or if you REALLY like the content, how about subscribing? Any support is appreciated. Let’s do this! Today we are talking about MP35N.
So what is MP35N or in the UNS system R30035?
Well , it’s an alloy of Cobalt, Nickel, Chromium , and Molybdenum that can be age hardened to high strength after being cold worked.
In Aerospace applications, there are three applicable AMS specifications for bar stock. All require that the material is Vacuum Induction Melted (VIM) followed by a Consumable Electrode Vacuum Melt (CEVM) .
| MP35N UNS R30035 Chemical Composition: | |
|---|---|
| Carbon | 0.025 % Max |
| Manganese | 0.15 % Max |
| Silicon | 0.15% Max |
| Phosphorus | 0.015 % Max |
| Sulfur | 0.010 % Max |
| Chromium | 19.00 – 21.00 % |
| Nickel | 33.00 – 37.00 % |
| Molybdenum | 9.00 – 10.50 % |
| Titanium | 1.00 % Max |
| Iron | 1.00 % Max |
| Cobalt | Balance |
The three AMS specifications have different requirements for the condition:
AMS 5758 for the solution treated condition
Solution treatment is typically in the range 1900 to 1925 deg F for 4 to 8 hours
Mechanical properties:
Tensile strength 115, 000 – 145,000 psi
Yield strength 35,000 – 65,000 psi
Elongation 50 % Min
Reduction of Area 65 % Min
Requires additional cold work and then age hardening to develop high strength in fabricated parts.
AMS 5844 for solution treated and cold worked condition
Requires only an additional age hardening heat treatment of parts to develop high strength
AMS 5845 for solution treated, cold worked, and age hardened
Mechanical properties:
Tensile strength 260,000 psi Min
Yield strength 230,000 psi Min
Elongation 8 % Min
Reduction of Area 35 % Min
AMS specifications contain additional requirements than just what we have shown you today. Other specifications and part requirements can also apply.
So CHECK the SPECS !!!!!!! Thank you for tuning in, if you made it this far and haven’t subscribed well why not? You must like metal. If you missed any previous videos, click here. Thanks for watching, this is Michael with Michael Talks Metal. See you next Thursday. I’m out!
