According to the GB/T 13304 standard, spring steel can be categorized into two main types based on its chemical composition: non-alloy spring steel, often referred to as carbon spring steel, and alloy spring steel, which incorporates additional elements to enhance its properties. 1. Carbon Spring Steel The carbon content in carbon spring steel typically ranges from 0.62% to 0.90%. Depending on the manganese content, it can further be divided into two groups. One group has a general manganese content (mass fraction) of around 0.50% to 0.80%, including grades like 65 and 70. Another group features a higher manganese content (mass fraction) ranging from 0.90% to 1.20%, with examples such as 65Mn. 2. Alloy Spring Steel Alloy spring steel builds upon the foundation of carbon steel by incorporating one or more alloying elements. These additions aim to boost mechanical properties, hardenability, and overall performance to suit the diverse demands of spring manufacturing. The fundamental composition series of alloy spring steel includes options like silicon-manganese spring steel, silicon-chrome spring steel, chromium-manganese spring steel, chromium-vanadium spring steel, and tungsten-chromium-vanadium spring steel. Within these series, certain grades may also include additional alloying elements like molybdenum, vanadium, or boron to enhance specific properties. For instance, molybdenum can improve toughness and wear resistance, while vanadium helps refine grain structure and increase strength. In addition to these primary categories, some steel grades not originally designed for springs, such as high-quality carbon structural steel, carbon tool steel, high-speed tool steel, and even certain stainless steels, have been utilized in specialized spring applications due to their unique characteristics. Spring steel plays an essential role in modern engineering, providing reliable performance across industries like automotive, aerospace, and consumer goods. Its versatility makes it indispensable for creating durable and efficient components. Customized Telescopic Tube,Pvc Square Telescopic Tube,Black Telescopic Tube,Rectangle Telescopic Tube Wuxi Jierui Changkun New Material Technology Co., Ltd , https://www.plasticstrapsll.com
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