Bangkok Special Steel Co., Ltd.

We provide various types of alloyed powders incluing those of stainless, super alloy and nonferrous metal. Powders with various particle diameters from coarse particle powder to ultra-fine powder can be produced. Our alloyed powders are active in various fields of automobile, IT, electronic...

This is a type of powder to produce net shape stainless steel parts with good corrosion resistance. This is best suited for compacting and sintering, MIM process.

We started the mass production of solid wire for the first time in Japan in 1955. We supply various kinds of welding wires such as mild steel, stainless steel and titanium as a pioneer of the solid wire for gas shield arc welding.

Steel is developing and producing stainless steel with properties such as free-cutting, cold workability, high- strength to meet the various needs of customers.

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 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.

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.

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...