ASTM A193 B7 bolts can be used for many different applications that include fastening wood, steel, and other construction materials for projects such as docks, bridges, highway structures, and buildings.
Grade | ASTM A193 B7 |
Dimension | ASTM, IS, BS and all International Standards |
Length | 3mm to 200mm |
Size | M2, M2.5, M3, M4, M5, M6, M8, M10, M12, M14, M16, M20, M24, M30, M36 |
Types | U- Bolts, J Bolts, Mushroom Head Square Neck Bolts, Bolts, Stud Bolts, Hex Head Bolts, Socket Hexagon Head Screw Anchor Bolt, T-Head Bolts, Eye Bolt, Foundation Bolts, Structural Bolts etc. |
Element | B7 (AISI 4140) |
Carbon | 0.37 - 0.49% |
Manganese | 0.65 - 1.10% |
Phosphorus, max | 0.035% |
Sulfur, max | 0.040% |
Silicon | 0.15 - 0.35% |
Chromium | 0.75 - 1.20% |
Nickel | - |
Molybdenum | 0.15 - 0.25% |
Grade | Size | Tensile ksi, min | Yield, ksi, min | Elong, %, min | RA % min |
---|---|---|---|---|---|
B7 | Up to 2-1/2 | 125 | 105 | 16 | 50 |
2-5/8 - 4 | 115 | 95 | 16 | 50 | |
4-1/8 - 7 | 100 | 75 | 18 | 50 |