MP35N alloy applications and limits

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CAS_Su2011_01 · Casting, Summer 2011 · §9.p5

MP35N is one of the most fantastic metals I know. It's got a composition that's basically 35% nickel, about 20% chrome, 10% molybdenum, and the balance is cobalt — about 40% cobalt. Cobalt's not cheap, it's very expensive, three, four times the price of nickel. Molybdenum is even more expensive than cobalt. Chromium is just typical stainless steel. But it's a nickel-cobalt alloy — these are very expensive bolts, probably more expensive than titanium, on the high end of the nickel alloys. So rather than the 100 to 1 figure I gave you for fasteners before, this is on the 200 range. But it's non-magnetic, and it gets its strength from cold work.