France : Afnor Z 12 Cns 25.20

Germany :Din 1.4841

Italy : Uni X 16 Crnisi 25 20, Uni X 22 Crni 25 20

Japan : Jis Sus Y 31o

United Kingdom : B.S. 310 S 24

United States : Ams 5694, Ams 5695, Asme Sa182, Asme Sa213, Asme Sa249, Asme Sa312, Asme Sa358, Asme Sa403, Asme Sa409, Astm A167, Astm A182, Astm A213, Astm A249, Astm A276, Astm A312, Astm A314, Astm A358, Astm A403, Astm A409, Astm A473, Astm A511, Astm A580, Astm A632, Fed Qq-s-763, Fed Qq-s-766, Fed Qq-w-423, Fed Std-66, Mil Spec Mil-s-862, Sae 30310, Sae J405 (30310), Uns S31000 Grade 310, combining excellent high temperature properties with good ductility and weldability, is designed for high temperature service. It resists oxidation in continuous service at temperatures up to 1150°C provided reducing sulphur gases are not present. It is also used for intermittent service at temperatures up to 1040°C Grade 310S (UNS S31008) is used when the application environment involves moist corrodents in a temperature range lower than that which is normally considered "high temperature" service. The lower carbon content of 310S does reduce its high temperature strength compared to 310.