Full Transcript:

What’s up guys?!?! This is Michael with Michael Talks Metal back today after a wonderful holiday weekend here in the US. If you feel the videos might be useful or you just plain enjoy them, how about dropping a little like? (I won’t be upset if you subscribe) Let’s jump in, today we’re talking about Aermet 100.

So what is AerMet 100 ?

First off Its AerMet … not AIR MET

AerMet 100 is a precipitation hardening Nickel – Cobalt – Chromium – Molybdenum alloy steel.

AerMet 100 is produced  by Carpenter Technology Corporation.  The UNS chemical composition designation is K92580.

With a combination of high strength, fracture toughness, and resistance to stress corrosion and fatigue; it has many applications. It can be considered for applications at temperatures below 800 deg F.

This alloy is typically strengthened by a multiple step heat treatment. First, the alloy is solution treated at 1625 deg F followed by a stabilizing treatment at minus 100 deg F.  Typical precipitation (aka Ageing) heat treat treatment is at 900 deg F. Depending on the application and properties required, the heat treatments vary in temperatures, holding times, and cooling rate …

Applications in aerospace  include landing gear, drive shafts, and fasteners. The exceptional fracture toughness at high strength and hardness make it attractive for use in armor, ordnance, and ballistic applications.

NOMINAL CHEMICAL COMPOSITION    UNS K92580

Carbon ………………………………….  .23%

Nickel  …………………………………..   11.10%

Cobalt ……………………………………   13.4 %

Chromium ………………………………    3.10 %

Molybdenum …………………………..    1.20 %

Iron ……………………………………….  Balance

Room temperature  minimum mechanical properties depend on product and heat treatment. Typical for a precipitation hardened condition

Yield strength      235,000 psi

Tensile strength   280,000  psi

Elongation                10%

Reduction of Area      55 %

Density is  point 285 lbs per cubic inch

Specifications:

Bars and Forgings:

AMS 6532

AMS 6478 (cancelled)

Each specification and design has requirements that can add to or restrict the chemical composition beyond what we have shown you today.

Premium quality vacuum melting or multiple melting cycles are often required for this alloy.

Heat treatment and other processing and testing requirements also exist within the individual specifications and application.

So to be sure that all requirements have been identified.  We’ll remind you for the 42nd time toooooo check the specs…..

This is Michael with Michael Talks Metal, thanks for tuning in! If you made it this far, please consider subscribing if you haven’t already. If you have missed any previous videos click here. Thanks for watching, see you next Thursday 10am!