The material selection of bolts and nuts has an important effect on the strength of the connection. Here are some common materials that affect the strength of the connection: Strength: Choosing a material with sufficient strength is critical to the safety of the connection. In general, high-strength materials such as alloy steel or stainless steel are widely used for connections that require large loads. Corrosion resistance: If the joint is exposed to wet, acidic or alkaline environments, it is very important to choose a material with good corrosion resistance. Materials with strong corrosion resistance, such as stainless steel, can prevent joints from failing due to corrosion. Thermal stability: In high temperature applications, materials with good thermal stability need to be selected. Some alloy steel or nickel-based alloy materials are commonly used for high-temperature connections. Machinability: The machinability of the material is also an important consideration. Some materials may be easier to process and manufacture into threads to fit connection requirements than others. Failure mode: Different materials may have different failure modes under load conditions. Understanding the failure behavior of a material can help select the right material for a specific application. In summary, the material selection of bolts and nuts should take into account the strength requirements of the connection, environmental conditions, temperature requirements, workability and expected failure mode. The right choice of material ensures that the connection has sufficient strength and reliability.
