ASTM 193 Gr B7 / B7M / B16 / B8 / B8M / B82 /B8M2 /B8C

ASTM A320 Gr L7 / L7M / L43

ASTM A453 Gr 660 A / B  /C / D

ISO EN 898-1  4.6/ 5.6 / 5.8 / 6.8 / 8.8 / 10.9