VIII. Production. Process Flowsheet for Carbon Steel. Main Process Flowsheets FACT BOOK BNA Automotive Auto Sheets. chrome-coated product

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1 VIII. Production Main Process Flowsheets Process Flowsheet for Carbon Steel Steel scrap EAF Mould casting Continuously cast billet Continuously cast tube billet Cold-rolled product HDG product EG product Tin plate and chrome-coated product Silicon product Moulded billet Iron ore Sinter Blast furnace Torpedo tanker Converter Slab Seamless tube Tube billet Ф140 mandrel rolling mill Blooming mill Billet Wire rod High-speed wire rod mill 2030 cold rolling mill Tube billet Blooming slab Billet 1550 cold rolling mill 2050 hot rolling mill 1420 cold rolling mill Hot-rolled product 1580 hot rolling mill 1220 cold rolling mill Color-coated product Coal Coke oven BNA Automotive Auto Sheets 1730 pickling rolling mill HFW unit HFW pipe 1880 hot rolling mill Heat treatment Heavy plate 1800 cold rolling mill UOE unit UOE pipe Blooming heavy plate mill 57

2 58 Process Flowsheet for Stainless Steel Heating furnace RH refining Carbon steel scrap Carbon steel Annular shaft kiln LATS refining Blast Furnace Heating furnace No. 3 Heating furnace Desulfurization Cast iron Sinter 1#LF refining Carbon steel Raw materials & fuel for iron making Slab yard Reladling station Slag skimming Torpedo tanker Sinter 1#AOD Dephosphorization No. 3 VOD LTS refining Electric furnace Blast Furnace Sinter No. 3 Dephosphorization No. 4 2#LF refining 2#AOD Electric furnace Stainless steel scrap Annular shaft kiln Hot-rolled finished products Rough rolling Hot coilbox Flying-cut Finish rolling Laminar cooling Coiler Hot-rolled coil Galvanized carbon steel Carbon steel hot galvanization unit Continuous annealing common cold rolled carbon steel Five-stand tandem cold rolling mill Carbon steel coil Carbon steel pickling line Ferritic stainless steel Ferritic stainless steel Tandem cold rolled stainless steel Carbon steel continuous annealing unit Single stand multi- roll cold rolled stainless steel Stainless steel coil Cold-rolled annealing and pickling line for stainless steel strips Twenty-roller stainless steel rolling mill Stainless steel hot strip annealing-pickling line Hot-rolled anneal-pickle stainless steel Hydrogen bell-type furnace (Ferritic stainless steel))

3 59 Tube Cold drawing and rolling Piercing Hot-rolled coils ø18-40mm Process Flowsheet for Special Steel 100t DC LF VD Pickling Small billet CC VOD 50t EAF Coils AOD Die casting Hot rolling Bright Steel products 22mm Grinding Peeling Wires Rods ø18-200mm Finishing Annealing Rods Blooming NDT Nondestructive inspection Forgings Nondestructive inspection Discs & rings ø1500mm Die blocks (T) x (w)xl Flat bars (T) x (w) Rods ø mm Consumable electrode vacuum Hot-rolled coils Steckel mill Cold-rolled coils Bright annealing Stretch flattening 12-h cold rolling mill Annealing and pickling Sheets Annealing and pickling Stretch flattening Cutting Plates Pickling Small billet CC 60t EBT LF VD VD Annealing and pickling 40t EBT LF VD Slab LF Die casting LF Plasma arc furnace Electron beam furnace Vacuum induction Electrode preparation Electroslag 40t EAF Forging Heat treatment Blooming mill Flattening Heat treatment AOD NDT NDT Nondestructive inspection

4 Main Equipment Main equipment Qty. Model No. Headquarters Onstream year (Major maintenance) Capacity (Designed capacity) blast furnace m (2008) 3950 kilotons/year blast furnace m (2006) 3770 kilotons/year No. 3 blast furnace m kilotons/year No. 4 blast furnace m kilotons/year 60 COREX 1 C kilotons/year COREX 1 C kilotons/year Converter 300t 1 Top-bottom blowing 1985(2007) Converter 300t 1 Top-bottom blowing 1985(2007) 6776 kilotons/year No. 3 Converter 300t 1 Top-bottom blowing 1986(2007) 250t Converter 2 Top-bottom blowing tConverter 1 Top-bottom blowing kilotons/year 150t EAF 1 Direct current arc double furnace kilotons/year 2050mm steel strip hot rolling mill mm kilotons/year 1580mm steel strip hot rolling mill mm kilotons/year 4200mm heavy plate rolling mill mm kilotons/year 5000mm heavy plate rolling mill mm kilotons/year 1880 tandem hot rolling mill mm kilotons/year 2030mm steel strip cold rolling mill mm kilotons/year 1420mm steel strip cold rolling mill mm kilotons/year 1550mm steel strip cold rolling mill mm 2000 (2007) 1400 kilotons/year 1220mm steel strip cold rolling mill mm 1991(2007) 770 kilotons/year 1730mm steel strip cold rolling mill mm kilotons/year High-speed rod rolling mill mm, 120m/s kilotons/year Seamless tube mm kilotons/year Medium-diameter longitudinal welded pipe (HFW) Large-diameter longitudinal submerged arc welded pipe Stainless Steel Business Unit 1 Ø kilotons/year kilotons/year 750 blast furnace 1 750m (2001) kilotons/year

5 Main equipment Qty. Model No. Onstream year (Major maintenance) Capacity (Designed capacity) 2500 blast furnace m kilotons/year Converter (Carbon steel) ton top blow kilotons/year Converter (Carbon steel) ton top blow kilotons/year No. 3 Converter (Stainless steel) ton argon oxygen decarburizing furnace kilotons/year No. 4 Converter (Stainless steel) ton argon oxygen decarburizing furnace kilotons/year LF Refined-smelting ladle furnace tons kilotons/year LF Refined-smelting ladle furnace tons kilotons/year EAF ton 3 phase AC EAF kilotons/year EAF ton 3 phase AC EAF kilotons/year 1780mm steel strip tandem hot rolling mill mm kilotons/year Five-stand tandem rolling mill 1 Five-stand tandem cold rolling mill kilotons/year Twenty-high mill 1 Twenty-high stainless steel mill kilotons/year Special Steel Business Unit Steel-making line 2 60t/100t 2003/ kilotons/year Steel wire and rod production line 1 Ø5-Ø50mm kilotons/year Steel rod production line 1 12~50mm kilotons/year Blooming line 1 800mm kilotons/year Meisteel blast furnace m kilotons/year No. 4 blast furnace m kilotons/year Converter 1 150T kilotons/year Converter 1 150T kilotons/year No. 3 Converter 1 150T kilotons/year 1422 Tandem hot rolling line 1 Six-stand 1422 tandem hot rolling line kilotons/year 1420 cold rolling pickling rolling unit kilotons/year 61

6 Output (Kiloton) Pig iron Crude steel Finished products and billets Output Unit: Kiloton Pig iron 20,392 21,472 23,254 23,776 Crude steel 23,124 23,856 26,452 26,641 Finished products and billets Carbon steel 21,816 20,864 23,616 23,895 HRC [Note] 8,240 5,827 6,666 Pickled coil ,747 Heavy plate 1,859 2,292 2,220 2,286 CRC 3,692 4,073 4,912 4,852 Hot-dip galvanized steel 1,404 1,793 2,574 2,791 Electro-galvanized steel Color-coated Tin plate Chrome-coated Electric steel 987 1,165 1,289 1,242 Tube 1,445 1,679 1,717 1,546 Billet High speed wire rod Rebar Stainless steel 948 1,258 1,341 1,298 HRC CRC Special steel Total of finished products and billets 23,578 22,865 25,927 26,139 Note: The HRC in the table includes, as in the tables below, the pickled coil.