| AG der Dillinger Hüttenwerke, Germany |
| ALLVAC SC, Richburg, USA |
| ALTA Steel, Edmonton, Canada |
| ALUSUISSE, Chippis, Switzerland |
| ANGANG, China |
| ARBED, Differdange |
| Aubert & Duval, France |
| Badische Stahlwerke, Kehl, Germany |
| Berndorf Band, Austria |
| BGH Edelstahl Freital GmbH, Germany |
| Böhler Edelstahl, Kapfenberg, Austria |
| BUDERUS Edelstahl, Wetzlar, Germany |
| Changwon Special Steel, South Korea |
| Chapparal Steel, USA |
| Charter Steel, Saukville WI, USA |
| China Steel Corporation (CSC), Taiwan |
| Cockerill - Sambre, Belgium |
| Corus Ijmuiden, Netherlands |
| Corus Stahl Service Center, Gelsenkirchen, Germany |
| Dalian Steel Rolling Mill, China |
| EBG Ges. f. elektromagn. Werkstoffe, Bochum, Germany |
| EKO Stahl, Eisenhüttenstadt, Germany |
| EWS – Edelstahlwerke Südwestfalen, Siegen, Germany |
| Fagersta Stainless AB, Sweden |
| Friedrichs KOCKS GmbH, Hilden, Germany |
| FUNDIA Nedstaal, Netherlands |
| Fundia Wire Oy AB, Dalsbruk, Finnland |
| Gerdau Acos Finos Piratini, Brasil |
| GFW (Ges. für Warmumformung), Witten, Germany |
| HOESCH Hohenlimburg, Hagen, Germany |
| HOOGOVENS Ijmuiden, Netherlands |
| Ilsenburger Grobblech GmbH, Ilsenburg, Germany |
| ILVA Turin (jetzt A.S.T.), Italy |
| IMPHY S.A., France |
| ISPAT Hamburger Stahlwerke, Germany |
| ISPAT, Kasachstan |
| ISPAT SIDBEC, Longueuil works, Canada |
| ISPAT Walzdraht Hochfeld GmbH, Germany |
| Jupiter LTD, Kastroma, Russia |
| KRUPP HOESCH Stahl AG, Bochum, Germany |
| Mannesmann Röhrenwerke, Zeithain, Germany |
| Mannesmannröhren Werke AG, Mülheim (Rolling Mill), Germany |
| Nippon Steel (NSC) Hikari works, Japan |
| NLKM, Russia |
| North American Stainless Steel, USA |
| NSC Muroran works, Japan |
| NUCOR Corp., Nebraska, USA |
| Odermath Stahlwerke, Monheim, Germany |
| OVAKO Sweden |
| POSCO, Pohang Iron and Steel, South Korea |
| Preussag Stahl AG, Salzgitter, Germany |
| Rasselstein Hoesch GmbH, Plant Andernach |
| Reiner Brach GmbH, Bremen, Germany |
| REPUBLIC Eng. Steel, Lackawana, USA |
| Republic Engineered Products LLC, Lorain, USA |
| Salzgitter Flachstahl GmbH, Salzgitter, Germany |
| Schleifenbaum & Steinmetz, Siegen, Germany |
| Shanghai BAOSTEEL Group Corp., China |
| Shougang Corp., Beijing, China |
| SIDBEC-DOSCO (ISPAT), Canada |
| Siderar Argentinia, San Nicdos, Argentinia |
| SKET Magdeburg, Germany |
| SMS Demag AG, Hilchenbach, Germany |
| SMS-Meer |
| Stahlwerk Annahütte Max Aicher GmbH, Hammerau, Germany |
| Stelco, Hilton works, Hamilton, Canada |
| TECNAR, Canada |
| Thyssen Krupp Stahl AG, Duisburg, Germany |
| THYSSEN Nedstaal B.V., Netherlands |
| Thyssen Schweißtechnik, Hamm, Germany |
| THYSSEN Stahl AG Duisburg, Germany |
| ThyssenKrupp Stahl AG, Bochum, Germany |
| ThyssenKrupp Stahl AG, Bruckhausen, Germany |
| Timken Latrobe |
| Tong Hua, China |
| USS Kobe, Loraine, USA |
| Vallourec & Mannesmann Tubes, France |
| Vallourec & Mannesmann Tubes, Düsseldorf - Rath, Germany |
| Vallourec & Mannesmann Tubes, Düsseldorf-Reisholz, Germany |
| VALTI, France |
| VALTI, Krefeld, Germany |
| VOEST Alpine, Linz Österreich |
| von Moos Stahl AG, Luzern, Schweiz |
| Walter Patz Stahlservicecenter Mudersbach, Germany |
| WRG Wälzlagerrohr GmbH, Germany |
| WUHAN Iron & Steel (WISCO), China |
| Xing Cheng, China |
