Form 6-K

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                            Report of Foreign Issuer
                      Pursuant to Rule 13a-16 or 15d-16 of
                       the Securities Exchange Act of 1934

                   For the month of: August and September 2005

                          SGL CARBON Aktiengesellschaft

                              (Name of registrant)

                               Rheingaustrasse 182
                                 65203 Wiesbaden
                                     Germany

                    (Address of Principal Executive Offices)

        Indicate by check mark whether the registrant files or will file
              annual reports under cover of Form 20-F or Form 40-F:

                           Form 20-F |X| Form 40-F |_|

Indicate by check mark whether the  registrant  by  furnishing  the  information
contained in this Form is also thereby  furnishing  the  information  to the SEC
pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934:

Yes |_| No |X|

If "Yes" is marked,  indicate  the file  number  assigned to the  registrant  in
connection with Rule 12g3-2(b): N/A

                                  Exhibit Index

1.   German press release dated August 12, 2005 on SGL Carbon's Credit Ratings

2.   German  press  release  dated  August 22,  2005 on SGL  Carbon  Chosen as a
     Strategic Graphite Supplier

3.   German  press  release  dated  September  29,  2005 on SGL  Carbon  Redeems
     Convertible Bond and Reduces US$ Credit





                                    EXHIBIT 1

SGL Carbon's Ratings Upgraded by Standard & Poor's

Wiesbaden,  August 12, 2005.  The  corporate,  credit,  and bond ratings for SGL
Carbon  were  upgraded by the rating  agency  Standard & Poor's  yesterday.  The
credit  rating for SGL Carbon AG was  raised  from "B" to "B+" with the  outlook
"stable". S&P simultaneously increased the rating of the bond that was issued by
SGL Carbon Luxembourg S.A. from "CCC+" to "B-". The credit rating for SGL Carbon
LLC (USA) was  furthermore  raised from "B" to "B+".  These upgrades will have a
favorable impact on potential future  financial  arrangements  undertaken by SGL
Carbon.

Standard & Poor's had placed SGL Carbon on its watch list for a possible upgrade
following the  announcement  of the  cooperation  agreement with Audi on June 7,
2005.  The upgrade then followed the analysis of the half-year  interim  report,
which was disclosed on August 9.  Standard & Poor's bases its higher  ratings in
particular  on the  substantial  increase  in  profit  from  operations  and the
improvements in the financial  figures over the past six months,  as well as the
Company's healthy business outlook and the high level of capacity utilization of
the core  business  with graphite  electrodes,  the sale of the  loss-generating
Surface Protection operations, and the recent reduction in the second EU fine.

Important Notice:
This  document  contains  statements  on future  developments  that are based on
currently  available  information and that involve risks and uncertainties  that
could lead to actual results  deviating from these  forward-looking  statements.
These risks and uncertainties  include,  for example,  unforeseeable  changes in
political,  economic  and  business  conditions,  particularly  in the  area  of
electrosteel production,  the competitive situation,  interest rate and currency
developments,  technological  developments  and other  risks  and  unanticipated
circumstances. We see other risks in price developments, unexpected developments
relating to acquired and consolidated companies,  ongoing restructuring measures
and unforeseeable occurrences in conjunction with the reviews to be performed by
the European antitrust  authorities.  SGL Carbon does not intend to update these
forward-looking statements.

Your contact:
Corporate Communications / Press Office / Stefan Wortmann
Tel. : +49 611 60 29 105 / Fax : +49 6 11 60 29 101 / Mobil : +49 170  540 2667
e-mail : stefan.wortmann@sglcarbon.de / Internet : www.sglcarbon.de
         ----------------------------              ----------------





                                    EXHIBIT 2

SGL Carbon Chosen as a Strategic Graphite Supplier
o        Cooperation with South African Nuclear Energy Technology Company

WIESBADEN,  August 22, 2005. The South African nuclear energy technology company
"Pebble Bed Modular  Reactor" PBMR (Pty) Ltd.  announced  today its  cooperation
with SGL Carbon as a supplier of graphite.  A conference  will be held this week
in Pretoria with focus on the current  status of the  development  of the pebble
bed modular  reactor  technology.  PBMR is owned by a consortium  comprising the
largest  South  African  energy  supplier,  Eskom,  as well  as the  state-owned
development  finance  institution  Industrial  Development  Corporation of South
Africa  (IDC),  and  British  Nuclear  Fuels  (BNFL).  PBMR has the  ambition to
construct  commercially operating pebble bed modular reactors for electric power
generation in South Africa beginning in 2013.

As an alternative to non-renewable fossil fuel resources,  PBMR technology is to
be  utilized  in  the  near  future  as a  low-cost,  CO2-free  form  of  energy
production.  PBMR  selected  SGL Carbon as a strategic  supplier  because of the
latter's  expertise in the production and development of graphite in the highest
quality.  The two companies have been working  together for a number of years on
the  development  of  materials  for  use  in  PBMR   technology.   The  planned
construction of a demonstration  reactor in South Africa beginning in 2007 could
translate into sales of (euro) 35 to (euro) 40 million during the period 2006 to
2008 for the  Specialties  Business Unit of SGL Carbon.  Additional  information
about PBMR is available at www.pbmr.co.za

Important Notice:
This  document  contains  statements  on future  developments  that are based on
currently  available  information and that involve risks and uncertainties  that
could lead to actual results  deviating from these  forward-looking  statements.
These risks and uncertainties  include,  for example,  unforeseeable  changes in
political,  economic  and  business  conditions,  particularly  in the  area  of
electrosteel production,  the competitive situation,  interest rate and currency
developments,  technological  developments  and other  risks  and  unanticipated
circumstances. We see other risks in price developments, unexpected developments
relating to acquired and consolidated companies,  ongoing restructuring measures
and unforeseeable occurrences in conjunction with the reviews to be performed by
the European antitrust  authorities.  SGL Carbon does not intend to update these
forward-looking statements.

Your contact:
Corporate Communications / Press Office / Stefan Wortmann
Tel. : +49 611 60 29 105 / Fax : +49 6 11 60 29 101 / Mobil : +49 170  540 2667
e-mail : stefan.wortmann@sglcarbon.de / Internet : www.sglcarbon.de
         ----------------------------              ----------------





                                    EXHIBIT 3


SGL Carbon Redeems Convertible Bond and Reduces US$ Credit

WIESBADEN, September 19, 2005. SGL Carbon repaid to investors the outstanding 37
percent of the convertible bond that matured today. The bond had originally been
issued in September 2000.  Between the end of February and early April 2004, SGL
Carbon redeemed 63 percent of the  convertible  bond on the basis of a voluntary
redemption  offer.  Within the  framework  of the  refinancing  measures  at the
beginning of 2004,  the Company had deposited  the funds  required to redeem the
convertible bond in a cash escrow account.

SGL Carbon was  additionally  able to reduce its US credit facility from US$ 112
million to US$ 80 million in early September.  The Company's main banks acquired
this  credit  from  the  over  70  U.S.  financial  investors  with  whom it had
previously been placed.  This step further  underscores the progress the Company
has been making in the reduction of its debt.

Both measures  serve to  strengthen  the equity ratio of SGL Carbon in the third
quarter  (assuming  unchanged  exchange  rates  from  the  date  for  the  first
half-year's financial figures - June 30, 2005).


Important Notice:
This  document  contains  statements  on future  developments  that are based on
currently  available  information and that involve risks and uncertainties  that
could lead to actual results  deviating from these  forward-looking  statements.
These risks and uncertainties  include,  for example,  unforeseeable  changes in
political,  economic  and  business  conditions,  particularly  in the  area  of
electrosteel production,  the competitive situation,  interest rate and currency
developments,  technological  developments  and other  risks  and  unanticipated
circumstances. We see other risks in price developments, unexpected developments
relating to acquired and consolidated companies,  ongoing restructuring measures
and unforeseeable occurrences in conjunction with the reviews to be performed by
the European antitrust  authorities.  SGL Carbon does not intend to update these
forward-looking statements.


Your contact:
Corporate Communications / Press Office / Stefan Wortmann
Tel. : +49 611 60 29 105 / Fax : +49 6 11 60 29 101 / Mobil : +49 170  540 2667
e-mail : stefan.wortmann@sglcarbon.de / Internet : www.sglcarbon.de
         ----------------------------              ----------------





                                   SIGNATURES

Pursuant  to the  requirements  of the  Securities  Exchange  Act of  1934,  the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned, thereunto duly authorized.

                          SGL CARBON Aktiengesellschaft



Date: September 29, 2005                 By:   /s/ Robert J. Kohler
                                               ------------------------------
                                               Name:  Robert J. Koehler
                                               Title: Chairman of the Board
                                                      of Management


                                         By:   /s/ Dr. Bruno Toniolo
                                               ------------------------------
                                               Name:  Dr. Bruno Toniolo
                                               Title: Member of the Board
                                                      of Management


                                  End of Filing