ASTM A449
2021-10-20
Standar for Bolt | Grade | Bolt Size | Tension Stength | Yield Strength | Enlogation | Hardness | Head Marking | |
in. | ksi | ksi | % | Brinell | Rockwell C | |||
A449 | type1 | 1/4 to 1 | 120min | 92min | 14 | 255-321 | 25-34 |
|
over 1 to 1-1/2 | 105min | 81min | 14 | 223-285 | 19-30 | |||
over 1-1/2 to 3 | 90min | 58min | 14 | 183-235 | / | |||
type2 | 1/4 to 1 | 120min | 92min | 14 | 255-321 | 25-34 |
| |
over 1 to 1-1/2 | 105min | 81min | 14 | 223-285 | 19-30 | |||
over 1-1/2 to 3 | 90min | 58min | 14 | 183-235 | / | |||
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