1. What are anchor bolts? Anchor bolts are tools embedd […]
1. What are anchor bolts?
Anchor bolts are tools embedded in the ground or concrete foundations to connect the ground or concrete foundations with machinery and equipment.
2. What are the commonly used materials for anchor bolts?
Generally made of Q235 steel, Q355B or 16Mn material is used for high strength requirements, and 45#, 40Cr and other materials are also used to process 8.8 or 10.9 strength products, as well as secondary or tertiary rebar processing.
3. What are the commonly used types of anchor bolts?
Anchor bolts can be divided into fixed anchor bolts, movable anchor bolts, expansion anchor anchor bolts and adhesive anchor bolts. According to the different shapes, it is divided into: L-shaped embedded bolts, 9-shaped embedded bolts, U-shaped embedded bolts, welded embedded bolts, and bottom plate embedded bolts.
4. What is the difference between type A and type B anchor bolts?
Anchor bolts are divided into wool, thick rod and thin rod. The wool material, that is, the raw material steel, is directly processed from round steel or wire without modification; the thick rod or called A-type, the thin rod or B-type, are all processed from the steel to the corresponding required rod diameter.
5. What are the grade strengths of anchor bolts?
Depending on the conditions of use, the grade strengths are graded 4.8, 6.8, 8.8, and 10.9. The tensile capacity of grade 4.8 anchor bolts is the tensile capacity of the steel itself. The tensile strength of anchor bolts directly processed from Q345B or 16Mn raw materials can reach a tensile strength of grade 5.8.
For high-strength anchor bolts of grade 8.8 and grade 10.9, after the workpiece is processed and formed, it needs to be modulated and heat treated to achieve the ideal strength requirements. For the tensile strength of grades 4.8, 5.8, 6.8, 8.8 and 10.9, refer to the provisions on mechanical properties in GB/T3098.1.