we all know unsub is the sr 101 enthusiest here.
and I'm pretty sure he know alot about both the steels so I'll wait fro him to post.
but i'm pretty sure 5160 is similar to sr101.
52100
Carbon 0.98 to 1.10%
Manganese 0.25 to 0.45%
Silicon 0.15 to 0.35%
Phosphorus 0.025%
Sulfur 0.025%
Chromium 1.30 to 1.60%
Molybdenum 0.10%
Nickel 0.25%
Copper 0.35%
5160
Carbon 0.56 to 0.64%
Manganese 0.75 to 1.00%
Silicon 0.15 to 0.30%
Phosphorus 0.035%
Sulfur 0%
Chromium 0.70 to 0.90%
Molbdenum 0%
Nickel 0%
Copper 0%
They are not similar at all.
