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I Forge Iron

Mystery metal


jcornell

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I have picked up some free steel.

It has the following composition:

C < or = 0.03
S < or = 0.0005
P < or = 0.005
Si < or = 0.10
Mn < or = 0.10
Cr < or = 0.50
Ni = 18-20
Mo = 4-5
Cu < or = 0.30
Sn < or = 0.005
Al = 0.05-0
B < or = 0.003
Co = 8-13
Ti = 0.5-2.0
Ca = 0.005
Zr < or = 0.02

In its first life it was used as a fencing foil (those funny little swords with the rubber button on the end).

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It's a maraging steel. Looks like something from the 18Ni family.

http://www.matweb.com/search/DataSheet.aspx?MatGUID=54d654bef4f84c4c886a44290cc5cc3c
http://www.imoa.info/moly_uses/moly_grade_alloy_steels_irons/maraging_steels.html
http://www.keytometals.com/articles/art103.htm

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