ASTM Equivalents for Metric Grades

Diameter Range Metric Grade Approximate ASTM Equivalent Description Tensile, min Yield, min
Mpa ksi Mpa ksi
All 4.6 A307A Low or medium carbon steel 400 58 240 35
through 1″ (M24) 5.8 Cold worked low or medium carbon steel 520 75 420 61
through 1″ (M24) 8.8 A449 / F3125 Grade A325 Heat treated medium carbon steel 830 120 660 96
above 1″ (M24) 8.8 A193B7/A354BC or F1554G105 Heat treated medium carbon steel 830 120 660 96
through 1-1/2″ (M36) 8.8.3 A325 Type 3 / A449 Type 3 Heat treated medium carbon weathering steel 830 120 660 96
All 10.9 A490/A354BD Heat treated medium carbon alloy steel 1040 151 940 136
through 1-1/2″ (M36) 10.9.3 A490 Type 3 Heat treated medium carbon alloy weathering steel 1040 151 940 136
All 12.9 A574 Heat treated alloy steel 1220 177 1100 160