Bolts, threaded rod, and anchors ranging from ¼” to 3”.
Scope – This specification covers bolts, threaded rod, and anchors in diameters ranging from 1/4″ through 3″ inclusive. It is a medium strength bolt manufactured from a medium carbon or alloy steel that develops its mechanical values through a heat treating process. It is intended for general engineering applications.
Grades |
Type 1 | Quenched and tempered carbon and alloy steels |
| Type 3 | Quenched and tempered weathering steel |
Mechanical Properties |
Markings | Size | Tensile, ksi | Yield, ksi | Elong. % | RA % | Hardness | |
| Type 1 A449 |
Type 3 A449 |
1/4 – 1 | 120 min | 92 min | 14 min | 35 min | C25-C34 | |
| 1-1/8 – 1-1/2 | 105 min | 81 min | 14 min | 35 min | C19-C30 | |||
| 1-5/8 – 3 | 90 min | 58 min | 14 min | 35 min |
B183-B235 |
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Chemical
|
Type 1 Bolts | ||||||
| Element | Carbon Steel | Carbon Boron Steel | Alloy Steel | Alloy Boron Steel | |||
| Carbon | 0.30 – 0.52 | 0.30 – 0.52 | 0.30 – 0.52 | 0.30 – 0.52 | |||
| Manganese, min | 0.6 | 0.6 | 0.6 | 0.6 | |||
| Phosphorus, max | 0.04 | 0.04 | 0.035 | 0.035 | |||
| Sulfur, max | 0.05 | 0.05 | 0.04 | 0.04 | |||
| Silicon | 0.15-0.30 | 0.10 – 0.30 | 0.15 – 0.35 | 0.15 – 0.35 | |||
| Boron | 0.0005 – 0.003 | 0.0005 – 0.003 | |||||
| Type 3 Bolts, Class * | |||||||
| Element | A | B | C | D | E | F | |
| Carbon | 0.33 – 0.40 | 0.38 – 0.48 | 0.15 – 0.25 | 0.15 – 0.25 | 0.20 – 0.25 | 0.20 – 0.25 | |
| Manganese | 0.90 – 1.20 | 0.70 – 0.90 | 0.80 – 1.35 | 0.40 – 1.20 | 0.60 – 1.00 | 0.90 – 1.20 | |
| Phosphorus | 0.035 max | 0.06 – 0.12 | 0.035 max | 0.035 max | 0.035 | 0.035 | |
| Sulfur, max | 0.04 | 0.04 | 0.04 | 0.04 | 0.04 | 0.04 | |
| Silicon | 0.15 – 0.35 | 0.30 – 0.50 | 0.15 – 0.35 | 0.25 – 0.50 | 0.15 – 0.35 | 0.15 – 0.35 | |
| Copper | 0.25 – 0.45 | 0.20 – 0.40 | 0.20 – 0.50 | 0.30 – 0.50 | 0.30 – 0.60 | 0.20 – 0.40 | |
| Nickel | 0.25 – 0.45 | 0.50 – 0.80 | 0.25 – 0.50 | 0.50 – 0.80 | 0.30 – 0.60 | 0.20 – 0.40 | |
| Chromium | 0.45 – 0.65 | 0.50 – 0.75 | 0.30 – 0.50 | 0.50 – 1.00 | 0.60 – 0.90 | 0.45 – 0.65 | |
| Vanadium | 0.020 min | ||||||
| Molybdenum | 0.06 max | 0.10 max | |||||
| Titanium | 0.05 max | ||||||
| * Selection of a class shall be at the option of the manufacturer | |||||||
Recommended
|
Nuts | Washers | ||
| Plain | Galvanized | |||
| 1/4 – 1-1/2 | 1-5/8 – 3 | 1/4 – 3 | ||
| A563B Hex | A563A Heavy Hex | A563DH Heavy Hex | F436 | |