Our products have attained high strength and superior formability. They contribute to weight reduction and safety of automobiles.
This steel sheet possesses superior forming capability to realize the beautiful shape of automobiles.
High tensile strength steel is indispensable to making human- and earth-friendly automobiles that are safe and have a low environmental burden.
Sumitomo Metals provides application technologies in manufacturing products from steel sheet. They include Hydroforming, a processing method that forms two attached pieces of sheet by injecting high-pressure fluid, as well as the Tailored Blank Method.
A crankshaft is an important part of an engine which translates reciprocating linear piston motion into rotation. Sumitomo Metals presses steel bars and forges crankshafts, rather than casting them in ductile steel. Our forged crankshafts consequently have lighter weight and superior performance.
A connecting rod is an important part of an engine, together with a crankshaft, which converts linear motion into rotating motion. Sumitomo Metals has developed the fracture-splitting method and has realized reductions in weight and costs.
Electromagnetic steel sheet is a functional material that affects the performance of a drive motor. It is used in the iron core of an electromagnet.
A gasket is a mechanical seal that prevents leakage from a motor. Materials that withstand metal fatigue are needed, as they experience high impacts and compressive loads caused by gasoline combustion.
Specialty steel supports high performance and safety of a vehicle underbody. They include pistonrod and various shafts.
High-quality, high-strength seamless pipe is used for hydraulic cylinders in construction machinery such as shovel cars or cranes.
Generally, aluminum wheels are cast by injecting ductile steel into a mold. In contrast, Sumitomo Metals manufactures forged aluminum wheels that help to reduce the weight of buses or other large vehicles. Our forging technology has resulted in products that are significantly lighter and more durable.
