FLAT PRODUCT QUALITIES AND USING AREAS
Colakoglu Quality Id
    Using areas of Steel Qualities                Standard                   Standard Quality
                                                                                   St 22                    25122
  Hot rolled coils for cold rolling and                                     St 22-(with low Cu)             20122
                                               DIN 1614-Part 1
              galvanizing                                                         RRSt 23                   20123
                                                                                   St 24                    20124
                                                                        DD11-(with low Cu)                  30111
 Hot rolled low carbon steels for cold                                             DD11                     35111
                                             DIN EN 10111-2008
               forming
                                                                     DD11-( with high strength)             34111
    Steels suitable for cold drawing         DIN EN 10111-2008                     DD12                     30112
       Suitable for deep drawing             DIN EN 10111-2008                     DD13                     30113
  Unalloyed steels for pipe and tube           ASTM A53-2006                     Grade A                    56053
             applications
Unalloyed pipe and tube steels suitable        ASTM A53-2006                     Grade A                    56453
            for galvanizing
Unalloyed pipe and tube steels suitable
            for galvanizing                    ASTM A53-2006                     Grade B                    56452
Unalloyed pipe and tube steels suitable                                          Grade B                    56542
            for galvanizing                   ASTM A 500-2007
                                                                                 Grade C                    56546
  Unalloyed general structural steel           ASTM A 36-2005                      A36                      56036
  Unalloyed general structural steel
       suitable for galvanizing                ASTM A 36-2005                      A36                      56436
  Unalloyed general structural steel          ASTM A 283-2003                    Grade C                    56380
                                                                                 CS Type B                  56340
                                                                               SS Grade 33                  56360
                                                                               SS 36 Type 1                 56365
   Structural steels suitable for cold                                          SS 36 Type 2                56400
         forming and bending              ASTM A 1011/A 1011M-2007
                                                                        SS Grade 50 with 0.03 % Si          56454
                                                                               SS Grade 50                  56450
                                                                        SS Grade 55 with 0.03 % Si          56484
                                                                               SS Grade 55                  56480
High strenght and micro alloyed steel     ASTM A 1011/A 1011M-2007        HSLAS Grade 45 Class 2            56245
suitable for cold forming and bending
                                                                          HSLAS Grade 50 Class 1            56150
                                                                          HSLAS Grade 50 Class 1            56151
   Structural steels suitable for cold                                    HSLAS Grade 50 Class 2            56250
                                          ASTM A 1011/A 1011M-2007
         forming and bending
                                                                          HSLAS Grade 55 Class 1            56155
                                                                          HSLAS Grade 55 Class 1            56156
  High strenght micro alloyed steel       ASTM A 1011/A 1011M-2007        HSLAS Grade 55 Class 2            56255
suitable for cold forming and bending
   Structural steels suitable for cold    ASTM A 1011/A 1011M-2007        HSLAS Grade 60 Class 1            56160
         forming and bending
  High strenght micro alloyed steel                                       HSLAS Grade 60 Class 2            56260
                                          ASTM A 1011/A 1011M-2007
suitable for cold forming and bending                                     HSLAS Grade 70 Class 2            56270
                                                                                 CS Type B                  56830
                                                                               SS Grade 33                  56833
 General structural steels suitable for                                        SS 36 Type 1                 56836
     cold forming and bending             ASTM A 1018/A 1018M-2007
                                                             1/5
                                                                                                          Colakoglu Quality Id
   Usingstructural
 General areas of Steel
                   steelsQualities
                          suitable for              Standard                   Standard Quality
                                            ASTM A 1018/A 1018M-2007
     cold forming and bending
                                                                                  SS 36 Type 2                   56837
                                                                                  SS Grade 40                    56840
Micro alloyed structural steels suitable
                                            ASTM A 1018/A 1018M-2007        HSLAS Grade 45 Class 1               56845
    for cold forming and bending
  High strenght micro alloyed steels        ASTM A 1018/A 1018M-2007        HSLAS Grade 45 Class 2               56945
suitable for cold forming and bending
                                                                            HSLAS Grade 50 Class 1               56850
                                                                          HSLAS Grade 50 Class 1-Cu              55850
  Structural steels suitable for cold                                    HSLAS Grade 50 Class 1 with Si          56851
                                            ASTM A 1018/A 1018M-2007
        forming and bending                                              HSLAS Grade 50 Class 1-Si+Cu            55851
                                                                           HSLAS Grade 55 Class 1                56855
                                                                         HSLAS Grade 55 Class 1 with Si          56856
                                                                           HSLAS Grade 50 Class 2                56950
High strenght and micro alloyed steels
suitable for cold forming and bending       ASTM A 1018/A 1018M-2007       HSLAS Grade 55 Class 2                56955
                                                                           HSLAS Grade 60 Class 2                56960
  Structural steels suitable for cold
                                           ASTM A 1018/A 1018M-2007         HSLAS Grade 60 Class 1               56860
        forming and bending
                                                                            HSLAS Grade 65 Class 2               56965
High strenght and micro alloyed steels
suitable for cold forming and bending       ASTM A 1018/A 1018M-2007
                                                                            HSLAS Grade 70 Class 2               56970
                                                                                    340XF                        38340
High strenght and microalloyed steels           SAE J2340-1999-10
suitable for cold forming and bending                                               420XF                        38420
                                                                                Grade 50 Type 1                  56350
 High strength low alloyed structural                                           Grade 50 Type 2                  56550
                                                 ASTM A572 -2007
                steels                                                          Grade 55 Type 1                  56355
                                                                                Grade 55 Type 2                  56555
                                                                                    S235JR                       51235
  Unalloyed general structural steels        DIN EN 10025 Part 2 -2004
                                                                                 S235JR+N                        51236
   Atmosphere corrosion resistant
                                             DIN EN 10025 Part 2 -2004            S235JR+Cu                      55235
         structural steel
  Steels suitable for hot forming and
              normalizing                    DIN EN 10025 Part 2 -2004             S235J2+N                      52235
       General structural steel              DIN EN 10025 Part 2 -2004              S275JR                       51275
  Steels suitable for hot forming and
                                             DIN EN 10025 Part 2 -2004             S275J2+N                      52275
              normalizing
                                                                            S235JR+N with 0.03 % Si              41235
Unalloyed structural steels suitable for                                    S235J2+N with 0.03 % Si              42235
hot forming, cold rolling, normalizing       DIN EN 10025 Part 2 -2004
           and galvanizing                                                  S275JR+N with 0.03 % Si              41275
                                                                            S275J2+N with 0.03 % Si              42275
Unalloyed strap steels for cold rolling
                                             DIN EN 10025 Part 2 -2004         S235JR strap steel                51238
          and hot forming
                                                                2/3
                                                                                                           Colakoglu Quality Id
     Using areas of Steel Qualities                Standard                    Standard Quality
Unalloyed strap steels suitable for cold                               S235JR strap steel with 0.03 % Si
                                           DIN EN 10025 Part 2 -2004                                              54238
rolling and hot forming and gavanizing
                                                                                    S355J0                        50355
  Unalloyed general structural steels      DIN EN 10025 Part 2 -2004                S355JR                        51355
                                                                                    S355J2                        53355
  Steels suitable for hot forming and
                                           DIN EN 10025 Part 2 -2004               S355J2+N                       52355
              normalizing
    Atmosphere corrosion resistant
    structural steels suitable for hot     DIN EN 10025 Part 2 -2004             S355J2+N+Cu                      55355
        forming and normalizing
                                                                                   S235JR                         54235
                                                                           S235JR (Cu+Cr+Ni≤0.35)                 50236
                                                                           S235J0 (Cu+Cr+Ni≤0.35)                 50237
                                                                           S235J0 (Cu+Cr+Ni≤0.35)                 50238
  Unalloyed general structural steels      DIN EN 10025 Part 2 -2004
        suitable for galvanizing                                                   S235J0                         50235
                                                                                   S235J2                         53235
                                                                                   S275JR                         54275
                                                                                   S275J0                         50275
                                                                                   S275J2                         53275
   Unalloyed general structural steels                                      S355JR with 0.03 % Si                 54355
  (suitable to class 1 type galvanizing    DIN EN 10025 Part 2 -2004        S355J0 with 0.03 % Si                 54356
                standard)                                                   S355J2 with 0.03 % Si                 54358
   Unalloyed general structural steels
  (suitable for class 1 type galvanizing   DIN EN 10025 Part 2 -2004       S355J2+N with 0.03 % Si                54357
            and normalizing)
Low alloyed steels for cold drawing and    DIN EN 10025 Part 2 -2004     S355JR+N with max. 0.03 % Si             54510
 normalizing (suitable for galvanizing)
                                                                                   S235JRC                        40234
                                                                                   S235J2C                        40235
 General structural steels suitable for                                           S235J2C+N                       44235
                                           DIN EN 10025 Part 2 -2004
     cold forming and bending                                                      S275JRC                        43275
                                                                                   S275J2C                        40275
                                                                                  S275J2C+N                       44275
    Structural steel suitable for cold
                                           DIN EN 10025 Part 2 -2004          S275JRC+N-Special                   44276
   forming, nomalizing and bending
    Structural steels suitable for cold                                     S355JRC with 0.03 % Si                42355
   forming, bending and class 1 type
galvanizing                                DIN EN 10025 Part 2 -2004        S355J0C with 0.03 % Si                41355
                                                                            S355J2C with 0.03 % Si                43355
   Structural steels suıtable for cold
                                           DIN EN 10025 Part 2 -2004                S355J2C                       40355
         formıng and bendıng
    Structural steels suitable for cold
                                           DIN EN 10025 Part 2 -2004              S355J2C+N                       44355
   forming, bending and normalizing
   Structural steels suıtable for cold     DIN EN 10025 Part 2 -2004                S355JRC                       40356
         formıng and bendıng
                                                              3/5
                                                                                      Colakoglu Quality Id
 Using areas of Steel Qualities               Standard            Standard Quality
Structural steels suıtable for cold
      formıng and bendıng             DIN EN 10025 Part 2 -2004   S355J2C+N-Special          44356
                                                         4/3
                                                                                                   Colakoglu Quality Id
     Using areas of Steel Qualities               Standard                 Standard Quality
                                                                               S355J0WP                   58355
 Atmosphere corrosion resıstant steels    DIN EN 10025Part 5-2004
                                                                               S355J2WP                   58356
  Steels for spiral pipe manufacturing    DIN EN 10025-Part 2-2004           S355JR-Special               92355
                                           DIN EN 10111:2008-06                  DD11                     81222
                                                                            S235JRC- Special              82235
                                                                           S235J2C+N- Special             81235
 Wheel steels suitable for cold forming                                     S275JRC - Special             82280
          and deep drawing                DIN EN 10025 Part 2 -2004         S275JRC - Special             82290
                                                                            S355JRC- Special              82330
                                                                           S355J2C+N- Special             82355
                                                                            S355JRC- Special              81330
High strength microalloyed wheel steels                                         S355MC                    83355
   suitable for cold forming and deep     DIN EN 10149-Part 2-1995          S420MC - Special              83420
                 drawing                                                S460MC - Special                  83460
High strength dual pahse wheel steels
 suitable for cold forming and deep          DIN EN10338-2010         HDT580X (DP 600)                    83600
               drawing
High strength dual pahse wheel steels        DIN EN10338-2010         HCT600X (DP 600)                    83610
        suitable for cold rolling
  High strength complex pahse wheel
  steels suitable for cold forming and       DIN EN 10338-2010            HDT780C (CP 800)                83800
              deep drawing
                                                                               SAE 1006                   91006
                                                                               SAE 1008                   91008
                                                                           SAE 1008 Modified              91108
                                                                            SAE 1008 Low Cu               91208
                                                                               SAE 1010                   91010
                                                                          SAE 1010 - Modified             91110
                                                                            SAE 1010 Low Cu               91210
                                                                               SAE 1012                   91012
        Hot rolled carbon steels               SAE J403-2001                   SAE 1015                   91015
                                                                            SAE 1015 Low Cu               91215
                                                                               SAE 1018                   91018
                                                                          SAE 1018 - Modified             91118
                                                                               SAE 1020                   91020
                                                                           SAE 1022 Modified              91022
                                                                               SAE 1022                   91122
                                                                               SAE 1025                   91025
                                                                               SAE 1030                   91030
                                                                               SAE 1040                   91040
  Hot rolled medıum and hıgh carbon
                steels                         SAE J403-2001
                                                                               SAE 1045                   91045
  Hot rolled medium and high carbon            SAE J403-2001           SAE 1045- Modified (C45E)          91145
         steels with chromium
                                                                               SAE 1050                   91050
                                                                               SAE 1055                   91055
  Hot rolled medium and high carbon
                                               SAE J403-2001
                steels
                                                               5/5
                                                                                                       Colakoglu Quality Id
     Using areas of Steel Qualities                  Standard                  Standard Quality
 Hot rolled medium and high carbon
                                                   SAE J403-2001                  SAE 1060                    91060
               steels
                                                                                  SAE 1070                    91070
                                                                                  SAE 1080                    91080
                                                                                   P235GH                     86235
Unalloyed steels for pressure purposes                                             P265GH                     86265
                                             DIN EN 10028-Part 2-2009
      at elevated temperatures                                                     P295GH                     86295
                                                                                   P355GH                     86355
  Unalloyed tube steels for pressure
  purposes at elevated temperatures             DIN EN 10120-2008           P235GH with 0.03 % Si             86435
                                                                                   P245NB                     85245
                                                                                   P265NB                     85265
             Lpg tube steels                    DIN EN 10120-2008
                                                                                   P310NB                     85310
                                                                                   P355NB                     85355
  Unalloyed general structural steel              JIS G 3101: 2004                  SS400                     93400
Boron added general structural steels             JIS G 3101: 2004             SS420 with Boron               93420
Low carbon commercial quality steels              JIS G 3131: 2004                  SPHC                      93111
      suitable for cold forming
  Low carbon commercial steels with               JIS G 3131: 2004             SPHC with Boron                93211
    boron suitable for cold forming
 Hot rolled low carbon pipe and tube                                               SPHT-1                     93270
 steels suitable for cold forming and             JIS G 3132-2005
              galvanizing                                                          SPHT-2                     93340
Atmosphere corrosion resistant steels            JIS G 3125-2004                   SPA-H                      93125
                                                                             HA250 with 0.03 % Si             94250
  Unalloyed general structural steels
                                                 AS NZS 1594-2002
  suitable for Class 1 type galvanizing
                                                                             HA350 with 0.03 % Si             94350
 General structural steels suitable for
           heat treatment                    DIN EN 10083- Part 2 -2006            28Mn6                      98628
Agricultural tool steels suitable for heat
                                             DIN EN 10083- Part 3 -2006            30MnB5                     98530
               treatment
                                                                                  S315MC                      36315
                                                                                  S355MC                      36355
                                                                               S355MC Special                 36356
                                                                                  S420MC                      36420
  Microallyed steels suitable for cold
               forming                       DIN EN 10149-Part 2-1995     S420MC Special with low Mn          36421
                                                                                  S460MC                      36460
                                                                                  S500MC                      36500
                                                                                  S550MC                      36550
                                                                                  S700MC                      36700
                                                                               S280MC Special                 37280
                                                                                  S315MC                      37315
  Microallyed steels suitable for cold       DIN EN 10149-Part 2-1995
       rolling and galvanizing
                                                                   6/3
                                                                                                Colakoglu Quality Id
   Using areas of Steel Qualities               Standard                Standard Quality
Microallyed steels suitable for cold
                                         DIN EN 10149-Part 2-1995           S355MC                     37355
     rolling and galvanizing
                                                                            S420MC                     37420
                                                                            S460MC                     37460
                                                                            P235TR1                    94235
        Pressure pipe steels             DIN EN 10217 Part 1-2005
                                                                            P235TR2                    94236
                                                                          A PSL1 L210                  95130
                                                                          B PSL1 L245                  95135
                                                                        X42 PSL1 L290                  95142
                                                                         X46 PSL1 L320                 95146
        Steels for pipe lines                API 5L-2007-PSL1           X52 PSL1 L360                  95152
                                                                         X56 PSL1 L390                 95156
                                                                         X60 PSL1 L415                 95160
                                                                         X65 PSL1 L450                 95165
                                                                          X70 PSL1 L485                95170
                                                                          BM PSL2 L245N                95035
                                                                       X42N PSL2 L290N                 95042
                                                                        X46N PSL2 L320N                95046
                                                                       X52M PSL2 L360M                 95052
        Steels for pipe lines                API 5L-2012-PSL2
                                                                        X56M PSL2 L390M                95056
                                                                        X60M PSL2 L415M                95060
                                                                        X65M PSL2 L450M                95065
                                                                        X70M PSL2 L485M                95070
                                                                    J55 regular casing&tubing          95355
                                                                    J55 regular casing&tubing          95356
                                                                    J55 Upgradeable (Tubing)           95254
  Steels for casing and/or tubing             API 5CT-2005
                                                                    J55 Upgradeable (Casing)           95255
                                                                         J55 Upgradeable               95256
                                                                         J55 Upgradeable               95257
Unalloyed general structural steels
                                             ASTM A 36-2005         ASTM A786 (ASTM A36)               56435
          (floor plate)
Unalloyed general structural steels
                                             ASTM A 36-2005         ASTM A786 (ASTM A36)               56437
suitable for galvanizing (floor plate)
                                                             7/5