AFAIK, no - it can't convert. I don't believe the FAA allow "conversion" of licenses from any country.
I think that there's a fair chance that they may recognize your hours, subject to audit of course.
Careful here, the so-called s/o "rating" is known as the P2X - you do a nominal technical conversion, but REALLY limited simulator and NO real aircraft bumps and grinds. Only a fraction of your "hours" count towards a higher license.
Just so you know...
As an s/o your duties are in flight relief only.
You're only allowed in a window seat above 20,000ft - so, no take offs or landings.
No FMC or cockpit setups.
Make the bunks (chocolate on the pillow not required but may get you brownie points!)
Eat the crap sandwiches (4th pick after CN, RLF, F/O).
R/T in cruise and fuel checks.
File the Jepp charts after landing.
For those who don't know about HKG girls - no money, no honey. You ain't getting nuttin' (they know about the ****e salary)
REPEAT. Three times monthly, for 6 years...