A GB/T 3077 stud bolt is a high-strength, dual-ended threaded fastener made from alloy structural steel, adhering to the Chinese national standard GB/T 3077. These bolts are typically used in heavy-load applications across industries such as construction, bridge engineering, machinery manufacturing, and petrochemicals, where reliable and secure connections are crucial.
Materials and Mechanical Properties
The GB/T 3077 standard specifies a variety of alloy steels that are optimized for strength and durability. Common materials include steels with alloying elements like chromium, molybdenum, and nickel, which enhance the bolt’s performance by providing higher tensile strength and improved resistance to wear, fatigue, and corrosion.
Key Features and Applications
- High Load-Bearing Capacity: These bolts are designed for settings that require secure, long-lasting connections, especially under fluctuating or heavy loads.
- Threaded Design: The full-threaded structure allows for optimal flexibility in connection length and can accommodate nuts on both ends for versatile fastening options.
- Heat Treatment: Many GB/T 3077 bolts undergo heat treatment processes to further improve their hardness and mechanical resilience, making them ideal for industrial-grade use.
Common Uses
Stud bolts produced to GB/T 3077 standards are often found in critical joints in bridge structures, structural supports, and equipment bases. Their robustness also makes them suitable for use in pressure vessels and other high-stress environments, particularly in high-temperature or corrosive conditions.
These bolts are a popular choice in industries where compliance with stringent safety and durability standards is essential.