Electrolytic Chromium｜Kohsei Co.,Ltd. Kitakyushu Plant

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Electrolytic Chromium

High-End Material

Kohsei Kitakyushu Plant is the only producer in Asia that has the high-purity degassing technology and large-lot production capacity. Our technology can bring O, N and S to an extreme low content such as 20ppm. As one of the top suppliers of Chromium metal, Kohsei can adequately provide customers with high purity and high quality Cr flakes and powders, which are used for producing high quality Cr sputtering targets.

Process Flow

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Product Specifications

Electrolytic Cr Flakes

Element (ppm)
Cr^*1	C	S	O	P	Fe	Al	Pb	Cu
≧99.95%	≦50	≦300	≦6000	≦20	≦100	≦20	≦30	≦40

*1 Purity excluding gas components (C, S, O)

Degassed Electrolytic Cr Flakes

Grade	Element (ppm)
Grade	Cr^*1	C	S	O	N	Si	P	Fe	Al	Pb	Cu
S	≧99.99%	≦20	≦5	≦20	≦10	≦20	≦10	≦25	≦10	≦10	≦10
A	≧99.99%	≦25	≦20	≦30	≦20	≦20	≦10	≦30	≦10	≦10	≦10
B	≧99.95%	≦30	≦50	≦100	≦20	≦50	≦10	≦50	≦20	≦10	≦10

*1 Purity excluding gas components (C, S, O, N)

Degassed Electrolytic Cr Powders

Particle Size^*1	Mesh^*2	Element (ppm)
Particle Size^*1	Mesh^*2	Cr^*3	C	S	O	N	Si	Fe
10µm	－	≧99.50%	≦500	≦50	≦4500	≦1000	≦30	≦2500
-38µm	-400 mesh	≧99.90%	≦100	≦50	≦1000	≦200	≦30	≦300
-45µm	-325 mesh	≧99.95%	≦100	≦50	≦750	≦150	≦30	≦300
-75µm	-200 mesh	≧99.95%	≦100	≦50	≦400	≦50	≦30	≦200
-150µm	-100 mesh	≧99.95%	≦50	≦30	≦180	≦50	≦30	≦100
-250µm	-60 mesh	≧99.95%	≦30	≦30	≦100	≦20	≦20	≦50

*1 Standard Sieves Particle Size (JIS Z 8801-1:2006/ISO3310-1:2000)
10µm: Median diameter by Laser Diffraction Particle Size Analyzer (Shimadzu SALD-2200)
*2 ASTM Standard (E11)
*3 Purity excluding gas components (C, S, O, N)

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