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Simple Classification Of Spring Materials

2020-01-19 10:53:27
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Spring materials can be roughly divided into the following categories:

Spring materials can be divided into two categories, metal and non-metal according to their materials. Metal elastic materials are widely used in mechanical engineering. Metal elastic materials are divided into several different types according to the main metal element composition of the material. Among them, spring steel is the spring material with the largest amount of use and the widest range of use. In spring steel, carbon spring steel and alloy spring steel both use iron as the main component. Alloy spring steel also appropriately adds alloy elements such as manganese, silicon, chromium, vanadium, tungsten, molybdenum, niobium, and boron to obtain Desired performance.

1.Carbon spring steel

Carbon spring steel and alloy spring steel are currently the most widely used spring materials, and both account for more than 90% of the amount of spring material used.

2.Alloy spring steel

According to the different alloy elements contained in steel, alloy spring steel can be divided into four series.

(1) Silicon-manganese alloy spring steel

The hardenability of silicon-manganese alloy spring steel is higher than that of carbon steel, and silicon can improve the strength and tempering stability of spring steel, so that it can be tempered at higher temperatures to obtain better comprehensive mechanical properties.

(2) Chrome vanadium alloy spring steel

Chromium vanadium alloy spring steel is a commonly used high quality spring steel, the typical grade is 50CrVA.

(3) Cr-Mn alloy spring steel

Chromium-manganese steel is not widely used in China. It is also an excellent alloy spring steel.

(4) Silicon chromium spring steel

In addition to 55Cr Si, the grades of silicon chromium spring steel and silicon chromium spring steel with vanadium are 65Si2CrA and 60Si2CrVA. Due to the action of chromium and vanadium in the steel, the steel has a low overheating sensitivity, is not prone to decarburization and graphitization, and has relatively stable mechanical properties at high temperatures and good hardenability.

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