Why Is S35C Steel Plate Used for Automotive Parts?

S35C steel plate, classified under the JIS G 4051 standard, is a medium carbon steel known for its excellent balance of strength, machinability, and cost-efficiency. These properties make it a popular choice for manufacturing various automotive parts.
In the automotive industry, components such as gears, shafts, axles, bolts, and couplings often require materials that can handle mechanical stress while maintaining formability during processing. S35C offers just that. Its moderate carbon content ensures sufficient hardness and strength after heat treatment, while still allowing for precise machining—an essential factor in automotive part production.
Moreover, S35C steel is well-suited to surface treatments like carburizing or induction hardening. These processes significantly enhance wear resistance, enabling components to perform under high loads and repeated motion—common conditions in vehicle systems.
The material's availability and stable supply also contribute to its widespread use. As the industry pushes for both performance and cost control, S35C stands out as a dependable option that meets technical requirements without inflating production budgets.
In short, S35C steel plate combines strength, machinability, and economic value—key reasons why it continues to be a preferred material for automotive applications worldwide.