A307 Anchor Bolt Page

| Property | Value | | :--- | :--- | | | 60 ksi (414 MPa) minimum | | Yield Strength | 36 ksi (248 MPa) minimum (typical, not mandatory by ASTM but implied by material) | | Elongation | 18% minimum (in 8 in.) – High ductility | | Hardness | Brinell 100–241 | | Threads | UNC series (Class 1A or 2A) | | Material | Low-carbon steel (e.g., A36, 1018) |

The may not be the flashiest component in a construction project, but it is undeniably one of the most essential. Its balance of cost-effectiveness, ductility, and reliable tensile strength makes it the industry standard for general construction anchoring.

ACI 318 (Appendix D) permits A307 bolts for cracked and uncracked concrete if the tensile stress is low. However, the design strength is controlled by concrete breakout or pullout, not steel yielding—except in ductility-critical applications. a307 anchor bolt

A common point of confusion in the industry is the difference between ASTM A307 and ASTM F1554 Grade 36. While they share similar chemical and mechanical profiles, F1554 is a specification specifically designed for anchor bolts.

Understanding the mechanical properties of A307 anchor bolts is vital for ensuring they meet the safety requirements of a specific project. Tensile Strength: 60,000 psi (minimum). | Property | Value | | :--- |

Material: Low-carbon steel, which provides excellent ductility and weldability.

To give you more specific advice on , tell me about: Project type (e.g., residential deck, industrial equipment) Required diameter or length Environmental conditions (e.g., coastal, indoor, buried) However, the design strength is controlled by concrete

Grade C: This grade was formerly used for structural masonry anchors but has since been replaced by the ASTM F1554 Grade 36 specification.