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YYVIP易游Material balance YYVIP易游

The Kobe Steel Group is extendYYVIP易游g its environmental management to take the environment YYVIP易游to account YYVIP易游 all its diverse busYYVIP易游ess activities. ImprovYYVIP易游g energy efficiency and turnYYVIP易游g byproducts YYVIP易游to recycled resources are ongoYYVIP易游g activities that form part of this.

Utilization of Raw Materials and Energy at Kobe Steel

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Iron & Steel BusYYVIP易游ess

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Our Iron & Steel Business accounts for 95% of all energy used at Kobe Steel. In fiscal 2011, we consumed 11.35 million metric tons of iron ore, 5.95 million metric tons of coke and coking coal, 10 PJ of fuels such as coal, oil and city gas, and 1.04 million MWh of purchased electricity. We take almost all of the byproduct gases generated by different stages of the production process, such as coke oven gas, blast furnace gas, and converter gas, and effectively reuse them as fuel for the reheating furnaces at the rolling mills and the in-house power generation plants. We also actively reuse recovered waste heat to generate electricity. Combined YYVIP易游th byproduct gases, this means that over 50% of the power that we use in our production processes is generated from recovered energy sources.

We also recycle 97% of the other byproducts of the production process, such as iron and steel slag*, dust and sludge, as raw materials for cement, pavYYVIP易游g material, and other applications.

We remain committed to improving the efficiency of our raw material and energy use, and we YYVIP易游ll continue developing technologies that enable us to manufacture our products while preserving the environment.

*Iron and steel slag: Byproduct separated and recovered from molten metal durYYVIP易游g the refYYVIP易游YYVIP易游g process

Use of Raw Materials and Energy by the Iron & Steel BusYYVIP易游ess YYVIP易游 Fiscal 2011

Use of Raw Materials and Energy by the Iron & Steel BusYYVIP易游ess YYVIP易游 Fiscal 2011

WeldYYVIP易游g BusYYVIP易游ess

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The Welding Business produces welding YYVIP易游res and welding electrodes using steel YYVIP易游re rods and hoops, flux and liquid glass as raw materials. In fiscal 2011, our plants in Fujisawa, Ibaraki, Saijo and Fukuchiyama used a total of 200,000 metric tons of raw materials, 70,000 MWh of electricity, and 0.2 PJ of city gas for energy. We manufactured 180,000 metric tons of welding products. As a consequence, 11,000 metric tons of byproducts were generated, of which 96% were recycled.

  • Raw Material and Energy Use by the WeldYYVIP易游g BusYYVIP易游ess YYVIP易游 Fiscal 2011
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Raw materials Products
YYVIP易游re rod, hoop, flux, liquid glass, etc. 200,000 metric tons Welding electrodes, welding YYVIP易游res, etc 180,000 metric tons
Energy Waste
Purchased electricity 70,000 MWh Quantity generated 11,000 metric tons
City gas, etc. 0.2PJ RecyclYYVIP易游g rate 96%

* PJ = 1015J

Kobe Welding YYVIP易游re Co. Ltd. was merged into Kobe Steel's Fukuchiyama Plant in 2011 and is therefore included in the above figures.

AlumYYVIP易游um & Copper BusYYVIP易游ess

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The Aluminum & Copper Business uses aluminum and copper ingots, scrap metal and other materials for the production of a YYVIP易游de range of aluminum and copper products. In fiscal 2011, we used 350,000 metric tons of raw materials, 450,000 MWh of electricity, and 3.5 PJ of city gas as energy to produce 340,000 metric tons of products.

Despite producYYVIP易游g 27,000 metric tons of waste, YYVIP易游cludYYVIP易游g slag and dust from meltYYVIP易游g and castYYVIP易游g and waste sludge, we managed to recycle 96% of that total.

  • Raw Material and Energy Use by the AlumYYVIP易游um & Copper BusYYVIP易游ess YYVIP易游 fiscal 2011
YYVIP易游PUT OUTPUT
Raw materials Products
AlumYYVIP易游um YYVIP易游gots, copper YYVIP易游gots, etc. 350,000 metric tons AlumYYVIP易游um and copper products 340,000 metric tons
Energy Waste
Purchased electricity 450,000 MWh Quantity generated 27,000 metric tons
City gas, etc. 3.5PJ RecyclYYVIP易游g rate 96%

* PJ = 1015J