Yamanaka Group
Our Businesses Trade Business Metal Materials
Nonferrous Metal Materials
Our operations cover a wide range extending from various primary products including base metals to the manufacture of secondary products (plates, pipes, rods, wires, strips).
Nonferrous Ingot and Alloys
We handle materials ranging from base metals to various ingots and alloys.
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Tin ingot
Our products are used for soldering and plating as well as in a wide range of other fields.
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Antimony ingot
Used as a flame-retardant auxiliary and as an additive to steel and to lead batteries.
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Cathode copper
Commonly used since long ago, due to its excellent electrical and thermal conductivity.
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Cathode zinc
Used in various alloys, industrial chemicals, and as plating for rust prevention.
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Cathode lead
Used mainly in automotive lead batteries and also as a balance weight and for radiation shielding.
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Aluminum ingot
Used in a wide range of fields such as automobiles and construction materials.
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Various mother alloys
Used to add various elements to a base material.
Cathodic Protection Materials
We handle various kinds of nonferrous metal cathodic protection materials including cathodic protection zinc (CPZ).
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Cathodic protection zinc (CPZ), cathodic protection aluminum (Alanode)
Used mainly for corrosion protection of ships, plant equipment, harbor installations, and similar.
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Zinc wire
In addition to the antirust spraying, this product is used for film capacitor electrodes, etc.
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Zinc aluminum wire
Used mainly for antirust spraying. The addition of aluminum to the zinc further enhances the antirust effect.
Rolled Materials
We handle a variety of rolled products of various metal materials such as plate materials, strip materials, extruded shapes, and shaped steels.
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Aluminum
Metals with various advantages such as light weight, corrosion resistance, workability, and thermal conductivity. Various surface treatments such as alumite processing can be used to achieve a pleasing design.
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Stainless steel
Excels in properties such as strength, corrosion resistance, and heat resistance. Mirror polishing, hairline finishing and other processes can be applied to achieve specific design characteristics.
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Steel material
Steel is the most widely used metal among practical metals. It provides excellent workability, and its corrosion resistance can be improved by various surface treatments such as plating.
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Copper
Excels in good workability, electrical conductivity, and thermal conductivity. Copper is also corrosion-resistant, and oxidization results in green-blue film that has a unique aesthetic appeal.
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Magnesium
This is the most light-weight among practical metals. Specific strength and specific rigidity are superior to iron and aluminum.