The ASTM A307 standard is a widely recognized specification that outlines the requirements for carbon steel bolts, studs, and stud bolts. This standard is published by the American Society for Testing and Materials (ASTM) and is used globally in various industries, including construction, oil and gas, and manufacturing.
ASTM A307 fasteners are typically manufactured from ASTM A36 round bar. The transition from raw material to fastener occurs when the A36 bar is processed through cutting, threading, bending, or forging. 60,000 psi (60 ksi) 60,000 psi (60 ksi) Tensile Strength (Max) 100,000 psi (100 ksi) Hardness (Brinell) 121 – 241 BHN 121 – 212 BHN Equivalent Standards SAE J429 Grade 2 Common Applications astm 307
The specification is divided into three primary grades, each suited for different functional roles: The ASTM A307 standard is a widely recognized