steel studbolt grade B7 size 1/2 inch 13 centimeters
A steel stud bolt grade B7 with a diameter of 1/2 inch and a length of 130 mm has an approximate weight of 0.23 kilograms. This bolt is manufactured from chromium molybdenum alloy steel and undergoes quenching and tempering processes to achieve higher mechanical strength. The weight-to-length ratio of this component is optimized to ensure reliable performance under high-stress industrial conditions with minimal deformation.
The Vickers hardness of this stud bolt typically ranges between 310 and 340 HV, which indicates excellent resistance to wear and metal fatigue. The thread type is generally UNC according to ANSI/ASME B1.1 standards, with a pitch of 1.75 millimeters per rotation. This pitch and thread geometry provide uniform stress distribution across the joint, resulting in enhanced connection durability.
The mechanical properties of the B7 stud bolt include an ultimate tensile strength of approximately 1150 MPa and a yield strength of about 1000 MPa. These properties enable the bolt to withstand both dynamic and static loads effectively. Precision in thread design and controlled surface hardness help minimize stress concentration and ensure safe, long-term performance in critical applications such as oil, gas, and petrochemical industries.
