SECTIONS FOR MINE ROADWAY SUPPORTS AND TUNNELS

SECTIONS FOR MINE ROADWAY SUPPORTS AND TUNNELS 1

Success is a journe, not a destination. Ben Sweetland 2

COMPANY PROFILE KOCAER GROUP commenced its operations in te iron and steel sector in te earl 1960s in Denizli. KOCAER ROLLING MILL, te first compan of KOCAER GROUP, establised its second and tird facilities in te Aliaga Region/Izmir in 1996 and 2008 respectivel. KOCAER ROLLING MILL is currentl continuing its production activities in a total area of 270 tousand m 2 in wic 70 tousand m 2 is covered facilit. Having iger objectives, KOCAER ROLLING MILL as increased its total annual capacit to 600.000 Mtons wit te modernization investments. In addition to its standard products, for specific projects, te compan manufactures special products, ranging up to 18 meters in its facilities for mining, sip building, railroads, automotive and agricultural maciner industries. Also, products wit te desired qualit, diverse dimensions and standards are manufactured based on te specific requests of te clients. KOCAER ROLLING MILL as equipped all of its production lines wit te tecnological infrastructure ensuring te manufacturing of uniform products. KOCAER ROLLING MILL consistentl enances its success wit a wide range of products, and manufactures Equal Angles (20 mm to 200 mm), UPN / PFC and UAC Profiles (30 mm to 300 mm), IPN, IPE, IPEA, and IPEAA Profiles (80 mm to 300 mm), RSJ Profiles (76 mm to 203 mm), T-Bars (25 mm to 50 mm), Flat Bars (20 mm to 150 mm), Square Bars, Round Bars (10 mm to 50 mm) and special grade ig tensile flats and sections for railroad, automotive and agricultural maciner industr, TH70/29-34 and GI120No profiles (DIN21530) for mining industr, Bulb flats for sip building, F2, F3-A and F7 tpe window sections wic are designed b Kocaer (registered b te Turkis Patent Institute). KOCAER ROLLING MILL controls ever stage of its production process wit te utmost attention in order to increase customer satisfaction. It certifies te qualit in ever stage of its process, from te raw material procurement to te deliver of te finised products, wit its professional experts and ig tecnolog qualit control equipment. Te ISO 9001 International Qualit Management Sstem Certificate, CE Marking Production Control Certificate, IRAM S-Mark Certificate and te TSE Certificate of Compliance wit Turkis and EN standards are just a few of te certificates wic document tis success. Wit te elp of te significant investment in te engineering force and infrastructure, KOCAER ROLLING MILL conducts its activities at its certified R&D department and accredited laboratories; first in te private rolling mills in Turke; wit superior attention in its advanced tecnolog production facilities. Wit export activities in over 100 countries, te KOCAER ROLLING MILL olds a significant place in te sector, and was included in te top 100 Largest Export Companies according to te Turkis Exporters Assembl since 2008; te 63rd on 2014 wit an export turnover of more tan USD200 million. A1 PLANT A2 PLANT 1

MINE AND TUNNEL PROFILES STEEL GRADES STEEL GRADE STANDARD YIELD STRENGTH TENSILE STRENGTH ELONGATION (min) (min) (min) σ ield σ tensile ε (N/mm 2 ) (N/mm 2 ) (%) S 550 W ZN/TT/2012/1 550 730 18 S 480 W PN-H-84042 480 650 17 31Mn4 DIN 21530-3 350 550 18 17MnV7 DIN 1.0870 450 600-700 22 S235JR EN 10025 235 360-510 26 S275JR EN 10025 275 410-560 22 S355JR EN 10025 355 470-630 22 KOCAER ROLLING MILL HAS ESTABLISHED THE FIRST RESEARCH AND DEVELOPMENT CENTER CERTIFIED BY THE MINISTRY OF SCIENCE, INDUSTRY AND TECHNOLOGY IN LONG STEEL SECTOR OF TURKEY 2

TH PROFILES DIN 21530 B H x x THE ADVANTAGES OF RUNNING TH JUNCTIONS TH profiles are widel used in underground mines and railroad/igwa tunnels, providing not onl a iger resistance but also a ielding support to stabilize te underground cavities. One of te most significant advantages of TH profiles against I and H profiles is teir abilit to provide same ig tensile momentum on bot cross sections (X-X and Y-Y) trougout te profile. Besides te ease of assembl, dismantling and ig performance at te junctions; te maintain full support during te decreasing cross section of te underground cavit b sliding on eac oter witout major deformation. Next to te superior design advantages, te use of ig tensile steel (31Mn4-S480W-S550W) during te production also maintains ig durabilit performance. Te major accessories of TH profiles are te clamps enabling te ease of sliding of te profiles on eac oter and te traversal junctions tat assist to work te profiles simultaneousl. It is crucial to torque te clamps and te traversal junctions for te sstem to work efficientl. PROFILE PROPERTIES SIZE MASS SECTIONAL AREA B H Ix I Wx W (kg/m) (cm 2 ) mm mm (cm 4 ) (cm 4 ) (cm 3 ) (cm 3 ) TH 21 20,9 26,7 127,0 108,0 324 410 60 64 TH 25 25,0 31,9 136,0 118,0 455 558 74 82 TH 29 29,0 37,0 150,0 124,0 598 799 94 106 TH 34 33,8 43,1 171,0 136,5 870 1.182 122 138 TH 36 35,9 45,7 171,0 138,0 928 1.244 128 146 TH 40 39,9 50,9 172,0 145,0 1.120 1.440 153 167 TH 42 41,8 53,3 172,0 146,4 1.181 1.499 159 174 TH 44 43,7 55,7 172,0 147,8 1.243 1.559 165 181 3

GI PROFILES DIN 21530 s x x t d b PROFILE PROPERTIES SIZE GI 120No MASS SECTIONAL AREA SECTIONAL AREA b s t d e r Ix I Wx W (kg/m) d (cm 2 ) b (cm 2 ) mm mm mm mm mm mm mm (cm 4 ) (cm 4 ) (cm 3 ) (cm 3 ) 29,5 35,7 39,1 120,0 100,0 8,8 15,3 86,0 54,0 15,0 1.243 1.559 165 181 4

HEA PROFILES Dimensions: DIN 1025-3:1994 (IPBl Series) Tolerances: EN 10034:1994 v e X 1 r a v X X b Size b s t G A Jx Wx ix J W i Ss sx (mm) (mm) (mm) (mm) (kg/m) (cm 2 ) (cm 4 ) (cm 3 ) (cm) (cm 4 ) (cm 3 ) (cm) (cm 3 ) (cm) HE 100 A 96 100 5 8 16,7 21,24 349,2 72,76 4,06 133,8 26,76 2,51 41,14 8,0 HE 120 A 114 120 5 8 19,9 25,34 606,2 106,3 4,89 230,9 38,48 3,02 58,85 9,8 HE 140 A 133 140 5,5 8,5 24,7 31,42 1033 155,4 5,73 389,3 55,62 3,52 84,85 11,6 HE 160 A 152 160 6 9 30,4 38,77 1673 220,1 6,57 615,6 76,95 3,98 117,6 13,4 HE 180 A 171 180 6 9,5 35,5 45,25 2510 293,6 7,45 924,6 102,7 4,52 156,5 15,2 HE 200 A 190 200 6,5 10 42,3 53,83 3692 388,6 8,28 1336 133,6 4,98 203,8 17,0 HE 220 A 210 220 7 11 50,5 64,34 5410 515,2 9,17 1955 177,7 5,51 270,6 18,8 HE 240 A 230 240 7,5 12 60,3 76,84 7763 675,1 10,05 2769 230,7 6 351,7 20,6 HE 260 A 250 260 7,5 12,5 68,2 86,82 10450 836,4 10,97 3668 282,1 6,5 430,2 22,5 HE 280 A 270 280 8 13 76,4 97,26 13670 1013 11,86 4763 340,2 7 518,1 24,4 HE 300 A 290 300 8,5 14 88 112,5 18260 1260 12,74 6310 420,6 7,49 641,2 26,2 HE 320 A 310 300 9 15,5 97,6 124,4 22930 1479 13,58 6985 465,7 7,49 709,7 27,9 HE 340 A 330 300 9,5 16,5 105 133,5 27690 1678 14,4 7436 495,7 7,46 755,9 29,7 HE 360 A 350 300 10 17,5 112 142,8 33090 1891 15,22 7887 525,8 7,43 802,3 31,5 HE 400 A 390 300 11 19 125 159 45070 2311 16,84 8564 570,9 7,34 872,9 35,2 HE 450 A 440 300 11,5 21 140 178 63720 2896 18,92 9465 631 7,29 965,5 39,8 HE 500 A 490 300 12 23 155 197,5 86970 3550 20,98 10370 691,1 7,24 1059 44,4 5

IPN PROFILES Dimensions: DIN 1025-1:1995 Tolerances: EN 10024-1996 Y r2 r1 X X s 14 % t Y b b 4 Size b s t G A U Jx Wx ix J W i Ss lt lw (mm) (mm) (mm) (mm) (kg/m) (cm 2 ) (m 2 /m) (cm 4 ) (cm 3 ) (cm) (cm 4 ) (cm 3 ) (cm) (mm) (cm 4 ) (mm 6 ) IPN 80 80 42 3.9 5.9 5.94 7.57 0,304 77,7 19,50 3,20 6,29 3,00 0,91 21,60 0,87 0,09 IPN 100 100 50 4.5 6.8 8.34 10.6 0,370 171,0 34,20 4,01 12,20 4,88 1,07 25,00 1,60 0,27 IPN 120 120 58 5.1 7.7 11.1 14.2 0,439 328,0 54,70 4,81 21,50 7,41 1,23 28,40 2,71 0,69 IPN 140 140 66 5.7 8.6 14.3 18.2 0,502 573,0 81,90 5,61 35,20 10,70 1,40 31,80 4,32 1,54 IPN 160 160 74 6.3 9.5 17.9 22.8 0,575 935,0 117,00 6,40 54,70 14,80 1,55 35,20 6,57 3,14 IPN 180 180 82 6.9 10.4 21.9 27.9 0,640 1450,0 161,00 7,20 81,30 19,80 1,71 38,60 9,58 5,92 IPN 200 200 90 7.5 11.3 26.2 33.4 0,709 2140,0 214,00 8,00 117,00 26,00 1,87 42,00 13,50 10,50 IPN 220 220 98 8.1 12.2 31.1 39.5 0,775 3060,0 278,00 8,80 162,00 33,10 2,02 45,40 18,60 17,80 IPN 240 240 106 8.7 13.1 36.2 46.1 0,844 4250,0 354,00 9,59 221,00 41,70 2,20 48,90 25,00 28,70 IPN 260 260 113 9.4 14.1 41.9 53.3 0,906 5740,0 442,00 10,40 288,00 51,00 2,32 52,60 33,50 44,10 IPN 280 280 119 10.1 15.2 47.9 61.0 0,966 7590,0 542,00 11,10 364,00 61,20 2,45 56,40 44,20 64,60 IPN 300 300 125 10.8 16.2 54.2 69.0 1,030 9800,0 653,00 11,90 451,00 72,20 2,56 60,10 56,80 91,80 6

SAMPLE DRAWINGS OF GALLERY CROSS SECTIONS TH - GI Mine and IPN-HEA Tunnel Applications S S 4 piece (Horse Soe) galler 3 piece (Horse Soe) galler H S S S Diversion cannel Railroad and igwa tunnel S Trapezoidal galler section 7

TH 29-34 CLAMPS AND TRAVERSAL JUNCTIONS Clamps are produced wit 31Mn4 and S480W steel grades. NPU 65-80-100 traversal junctions are produced according to te customers applications of TH 29-34 / GI Profile assembl intervals *Traversal junctions are assembled wit bottom and top notced clamps. 8

Success is a journe, not a destination. 9

www.kocaergroup.com.tr Rev. 05/15