Generally speaking, what are the elements that affect the performance of cold-drawn seamless steel tubes? The quality of cold-drawn seamless steel tube is determined not only by production technology, but also by other important factors. This is why the content of elements in cold-drawn seamless steel tube has a great influence on the performance of steel tube. Next let's take a look. Influencing Elements: The introduction is to introduce some elements which can affect the performance of cold-drawn seamless steel tubes, including carbon, sulfur, phosphorus and manganese. I hope the above contents can help you. （1）碳；含碳量越高，刚的硬度就越高，导致冷拔无缝钢管的可塑性和韧性就越差。
(1) Carbon; the higher the carbon content, the higher the rigidity, resulting in the worse plasticity and toughness of cold-drawn seamless steel tubes.
(2) Sulphur is a harmful impurity in steel. When the steel with higher sulphur content is processed under pressure at high temperature, it is easy to crack, which is usually called hot brittleness.
(3) Phosphorus; can make the plasticity and toughness of steel decrease obviously, especially at low temperature. This phenomenon is called cold brittleness. In high-quality steel, sulfur and phosphorus should be strictly controlled. On the other hand, high sulfur and phosphorus content in low carbon steel can make it easy to cut, which is beneficial to improve the machinability of steel.
(4) Manganese; can improve the strength of steel, can weaken and eliminate the adverse effects of sulfur, and can improve the hardenability of steel. High alloy steel (high manganese steel) with high manganese content has good wear resistance and other physical properties.
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