Recently, China's leading manufacturer of high-strength automotive spring flat steel: JXFD High-performance Steel Technology Corporation uses pure smelting technology and special rolling process to produce the highest strength spring flat steel in China – 2000MPa high-strength spring flat steel.
The product has been applied to high-end passenger cars and has successfully passed a series of product samples and small batch verifications, showing excellent fatigue service performance, and has been recognized by many passenger car manufacturers, and has successfully undertaken batch orders from users.
2000MPa high-strength spring flat steel is currently the highest strength spring flat steel in China. Through vanadium microalloying design combined with unique heat treatment process, nano-scale vanadium carbide precipitation is used to greatly improve the martensitic matrix toughness of spring steel, showing excellent strength. Resilience combined.
Compared with the traditional leaf spring, the high stress leaf spring produced by this product can increase the strength by more than 20% and the toughness by more than 80%. After the bench fatigue test, it can be maintained for 250,000 times without breaking under the maximum stress load of 1300MPa. .
JXFD is the first enterprise in China that develops and produces spring flat steel of this strength grade and realizes mass production, and its performance indicators have reached the international advanced level.
Many well-known high-end bus manufacturers in China have used this product to make high-stress leaf springs, which can better withstand the load impact of the wheels on the frame, and greatly improve the stability and comfort of the vehicle.
In addition, the number of sheets in the leaf spring member and the thickness of the sheets are reduced, so as to achieve the effect of reducing the weight of the suspension system, and further realize the lightweight of automobiles, energy saving and emission reduction.