SS 1.4539 or SS 904L Formula

I'm Rai Adhisurya, S.T. says :

Dear All
Good Day,

For your information please.

 Fe, < 0.02%C, 19-23% Cr, 23-28% Ni, 4-5% Mo, < 2.0% Mn, < 1.0% Si, 0.045% P, < 0.035% S, 1.0 - 2.0% Cu

Thank you very much for your attention.

Best Regards,
Rai Adhisurya, ST