A325 and A490 are two grades of high-strength structural bolts that are commonly used in construction and other heavy-duty applications. They differ in their material composition, strength, and performance characteristics.
A325 and A490 are two grades of high-strength structural bolts that are commonly used in construction and other heavy-duty applications. They differ in their material composition, strength, and performance characteristics.
A325 bolts are made of medium carbon steel and are designed to be used in applications where a high-strength connection is required. They have a minimum tensile strength of 120,000 pounds per square inch (psi) and a yield strength of 92,000 psi. A325 bolts are often used in structural steel connections, such as in steel buildings, bridges, and other large structures.
A490 bolts, on the other hand, are made of alloy steel and are even stronger than A325 bolts. They have a minimum tensile strength of 150,000 psi and a yield strength of 130,000 psi. A490 bolts are typically used in applications where a higher strength connection is required, such as in heavy equipment, industrial machinery, and large-scale construction projects.
One important difference between A325 and A490 bolts is their installation requirements. A490 bolts require a higher installation torque than A325 bolts due to their higher strength, and they also require a heavy hex nut instead of a standard hex nut to ensure proper installation.
In summary, A325 and A490 bolts are both high-strength structural bolts, but A490 bolts are made of alloy steel and have a higher strength than A325 bolts. The choice between these two types of bolts depends on the specific application and load requirements.