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Westy

the teste
Nov 22, 2002
56,005
22,042
Sleazattle
Puts on nerd glasses.

Implants are non-ferrous. Ti or SS.

Captain Pedantic here with a PSA

From Wikipedia "Stainless steel[1][2][3]: 276  is a group of ferrous alloys "

Stainless steel is mostly iron and can be magnetic, but it depends on the crystaline structure. Austenitic structures are not. You can actually take a piece of stainless like is on refrigerator, that is not magnetic, and make it magnetic by bending it back and forth, work hardening it by changing the crystalline structure away from the austenitic form.

:nerd:
 

jonKranked

Detective Dookie
Nov 10, 2005
88,815
27,030
media blackout
Captain Pedantic here with a PSA

From Wikipedia "Stainless steel[1][2][3]: 276  is a group of ferrous alloys "

Stainless steel is mostly iron and can be magnetic, but it depends on the crystaline structure. Austenitic structures are not. You can actually take a piece of stainless like is on refrigerator, that is not magnetic, and make it magnetic by bending it back and forth, work hardening it by changing the crystalline structure away from the austenitic form.

:nerd:
implants use non-ferrous SS as they need to be MR safe.
 

Westy

the teste
Nov 22, 2002
56,005
22,042
Sleazattle
Since we’re having a pedantic day, ‘Ferrous’ means ‘made of iron’ so you mean ‘austenitic’.

Captain pedantic calls poopdeck

Captain Pedantic here with a PSA

From Wikipedia "Stainless steel[1][2][3]: 276  is a group of ferrous alloys "

Stainless steel is mostly iron and can be magnetic, but it depends on the crystaline structure. Austenitic structures are not. You can actually take a piece of stainless like is on refrigerator, that is not magnetic, and make it magnetic by bending it back and forth, work hardening it by changing the crystalline structure away from the austenitic form.

:nerd:
 

Westy

the teste
Nov 22, 2002
56,005
22,042
Sleazattle
Although some alloys with higher nickel/chrome content are more rust resistant, stainless on it's own will still rust. To make it truly stainless it needs to be passivated, a process that dissolves and removes any iron near the surface of the metal.