GB 1348(88) QT 450-10 (China)
AFNOR NFA32201 FGS450-10 (France)
JIS G5502(95) FCD45 Class 2 (Japan)
GOST 7293 VCh45 (Russian Federation)
SIS 140722 0722-00 (Sweden)
ISO 1083(87) 450-10 (International)
BS 2789 450/10 (United Kingdom)
ASTM A536(93) 60-42-10 (USA)
ASTM A716(95) A716 (USA)