UNS S45500 (Alloy 455, XM-16) Stainless Steel
S45500 stainless steel is a precipitation-hardening stainless steel formulated for primary forming into wrought products. XM-16 is the ASTM designation for this material. S45500 is the UNS number. And Alloy 455 is the common industry name. It has a moderately high embodied energy among wrought precipitation-hardening stainless steels.