F1554 Grade 36
| Low |
F1554
| High |
F1554
| Alloy, |
Grade | Marking | Size, | Tensile, | Yield, | Yield, | Elong | RA |
36 | ![]() | ½ – 4 | 58 – 60 | 36 | 248 | 23 | 40 |
55 | ½ – 2 | 75 – 95 | 55 | 380 | 21 | 30 | |
2 ¼ – 2 ½ | 75 – 95 | 55 | 380 | 21 | 30 | ||
2 ¾ – 3 | 75 – 95 | 55 | 380 | 21 | 30 | ||
3 ¼ – 4 | 75 – 95 | 55 | 380 | 21 | 30 | ||
105 | ½ – 3 | ½ – 3 | 105 | 724 | 15 | 45 |
Element | Grade 36 | Grade 55 and 105 | ||
Sizes up to ¾ | Sizes over ¾ to 1 – ½ | Sizes over 1 – ½ to 4 | ||
Carbon (max) | 0.26% | 0.27% | 0.28% |
|
Manganese |
| 0.60 – 0.90% | 0.60 – 0.90% |
|
Phosphorus, max | 0.04% | 0.04% | 0.04% | 0.0040% |
Sulfur, max | 0.05% | 0.05% | 0.05% | 0.050% |
Copper, min (when | 0.20% | 0.20% | 0.20% | 0.20% |
Grade Identification Marking | Specifications | Material | Normal Size. In | Tempering Temp F | Proof Load Stress, | Hardness Rockwell | See Note | |
Min | Max | |||||||
ASTM A194 Grade 2 | Medium Carbon Steel | ¼ -4 | 0 | 150 | 159 | 352 | 1, 2, 3 | |
ASTM A194 Grade 2H | Medium Carbon Steel, | ¼ - 4 | 850 | 175 | C24 | C38 | 1, 2 |
Grade | Style | Size, in. | Proof Load, ksi | Hardness, HBN | |
Plain | Galvanized | ||||
A | Hex | ¼ - 1 – ½ | 90 | 68 | 116 - 302 |
Heavy Hex | ¼ - 4 | 100 | 75 | 116 - 302 |
Element | Grades | D** | DH** |
Carbon | 0.55% | 0.55% | 0.20 |
Manganese, |
| 0.30% | 0.60% |
Phosphorus, | 0.12% | 0.04% | 0.04% |
Sulfur, | 0.15% | 0.05% | 0.05% |
Grade Identification Marking |
| Material | Nominal Size. In | Proof Load Stress, | Hardness Rockwell | See Note | |
Min | Max | ||||||
ASTM A563 Grade O | Carbon Steel | ¼ - 1 – ½ | 69 | B55 | C32 | 2, 3 | |
ASTM A563 Grade A | Carbon Steel | ¼ - 1 – ½ | 90 | B68 | C32 | 2, 3 | |
ASTM A563 Grade B | Carbon Steel | ¼ - 1 | 120 | B69 | C32 | 2, 3 | |
>1 – 1 – ½ | 105 |
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