Industry knowledge
In this article, let us learn about the common materials of railway spikes and compare these materials.
The use environment of railway spikes is complex, and they need to withstand frequent vibrations, temperature changes and corrosion caused by high-speed train operation. Therefore, choosing the right material is the key to ensuring the durability and safety performance of the spikes. In the current market, the common materials of railway spikes mainly include carbon steel, medium carbon steel, alloy steel and a small amount of stainless steel.
Most ordinary railway spikes are made of medium carbon steel, such as Q235 or 45# steel. After normalizing or quenching and tempering, they can obtain good mechanical properties and are suitable for light loads or ordinary railway use scenarios. For tracks with stronger bearing capacity or more demanding use conditions, such as mining railways or heavy-load lines, spikes are mostly made of alloy steel materials, such as 35CrMo or 20MnTiB, which have higher tensile strength and wear resistance.
In addition, surface treatment technology is also an important factor affecting material performance. Hot-dip galvanizing can significantly improve the anti-rust ability and is suitable for hot and humid coastal areas; although Dacromet treatment is more expensive, it has good environmental performance and better salt spray resistance than traditional galvanized layers, and is often used in export high-standard markets.
The choice of material should be determined according to the use environment, track type and customer needs. In foreign trade practice, the reasonable recommendation of suitable material spikes can not only extend the product life, but also help customers reduce maintenance costs and improve the overall stability of the railway system.
