Home » Articles » Increasing Demand For High-Strength Steel For Automotive Springs

Springs made of high strength steel also helps in in downsizing of engines and improving fuel-consumption. The worldwide automotive parts and components industry is shifting its focus on the strengthening of valve springs. Japan is the first country that came up with the idea of strengthening of valve springs. Europe and USA are the other nations to have adopted this technique in order to deliver high-strength spring.



Apart from strengthening of steel, there are other modifications that will improve the performance of these auto springs. The different modifications include improvements of reliability, improved shot-peening, application of new surface treatments and reduced non-metallic inclusion sizes. The advancement in steel manufacturing technology which limit the size of non-metallic inclusions to less than 10 to 20μm will lead to higher strength of the springs.

These conventional steel wire though have higher strength they leads to lower ductility which thereby reduces productivity. The recent trends of lightweight vehicles with smaller engine spaces require car springs with oil-tempered steel wire that has 10% higher fatigue strength than conventional ones.