NBN 830-02 FNG42-12 (Belgium)
GB 1348(88) QT 400-15 (China)
GB 1348(88) QT 450-10 (China)
IS 1865 SG400/12 (India)
UNI 4544 GS400-12 (Italy)
JIS G5502(95) FCD40 Class 1 (Japan)
AS 1831(85) 400-12 (NSW Australia)
SABS 936 SG42 (South Africa)
BS 2789 420/12 (United Kingdom)
ASTM A536(93) 65-45-12 (USA)
SAE J434 D4512 (USA)
