A449 vs A325
Grade Marking | Specification | Material and Treatment | Nominal Size (In.) | Mechanical Properties | Hardness Rockwell | |||||
---|---|---|---|---|---|---|---|---|---|---|
Proof Load Min (ksi) | Yield Strength Min (ksi) | Tensile Strength Min (ksi) | Elong % Min [9] | RA % Min [10] | Min | Max | ||||
A325 Type 1 | Medium Carbon Steel, Q & T | 1⁄2" - 1" 11⁄8" - 11⁄2" |
85 74 |
92 81 |
120 105 |
14 | 35 | C24 C19 |
C35 C31 |
|
A325 Type 3 | Atmospheric Corrosion Resistant Steel, Q & T | |||||||||
A449 Type 1 | Medium Carbon Steel, Q & T | 1⁄4" - 1" | 85 | 92 | 120 | 14 | 35 | C25 | C34 | |
11⁄8" - 11⁄2" | 74 | 81 | 105 | C19 | C30 | |||||
15⁄8" - 3" | 55 | 58 | 90 | B91 | B100 | |||||
A449 Type 3 | Weathering Steel, Q & T | 1⁄4" - 1" | 85 | 92 | 120 | 14 | 35 | C25 | C34 | |
11⁄8" - 11⁄2" | 74 | 81 | 105 | C19 | C30 | |||||
15⁄8" - 3" | 55 | 58 | 90 | B91 | B100 |