THE PRODUCTION OF A NEW COPPER ALLOY AT NIEDERFINOW AND HETTSTEDT

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP82-00457R013200360004-6
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 2
• Document Creation Date: December 19, 2016
• Document Release Date: March 23, 2006
• Sequence Number: 4
• Publication Date: August 7, 1952
• Content Type: REPORT

Approved For Release 2006/08/08 : CIA-RDP82-00457R01320036004-6
FFA1952 ai-"'q
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COUNTRY
SUBJECT
CD NO.
25X1 DATE OF
INFO.
PLACE
ACQUIRED
CLASSIFICATION SECRET/CONTROL ? US OFFICIALS ONLY
SECURITY INFORMATION
INFORMATION REPORT REPORT NO
East Germany
DATE DISTR. 7 August 1952
The Production of a New Copper Alloy at NO. OF PAGES
Niederfinow and Hettstedt
NO. OF ENCLS.
(LISTED BELOW)
SUPPLEMENT TO
REPORT NO.
THIS DOCUMENT CONTAINS INFORMATION AFFECTING THE NATIONAL DEFENSE
OF THE U N I T E D STATES, W I T H I N THE MEANING OF TITLE 18, SECTIONS 193
AND 794, OF THE U.S. CODE, AS AMENDED. ITS TRANSMISSION OR REVE-
LATION OF ITS CONTENTS TO OR RECEIPT BY AN UNAUTHORIZED PERSON IS
PROHIBITED BY LAW. THE REPRODUCTION OF THIS FORM IS PROHIBITED.
THIS IS UNEVALUATED INFORMATION
The Niederfinow Metallhuettenwerk is being rebuilt and wig be renamed the
pf erwalzwerk9 Niederfinowo This plant will work in conjunction with the Wa.iz
w?erk'ue. - r4tr*;t .11 . ettstedto Both plants are concerned with the production
of a new copper alloy. This alloy is at present known as Kuprodur, which is
probably a cover mame since the term is already in use for an alloy which does
not include titanium. The specifications of the new copper alloy are as followss
silicon (1%) I
nickel (2b)
DO NOT CIRCU.},_i. L
titanium (about lJ-%)
The alloy can be tempered like steel by hardening (durch Aushaertung)e The
blanks are heated to 820? and then chilled in water. The result is a material
almost as soft as copper, which can be cut much better than copper, and is
particularly suitable for-gold rolling and acetylene welding,
The following are the strength properties of this alloy-.
$ rihiell. hardness kg/mm2. a ,soft approx. 65
tempered n . 175
tempered and strain hardened 175?235
Tensile strength soft approx. 35
tempered " 65
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2
tempered and strain hardened
85?90
Ductile yield in %,,,.
soft
35?28
tempered
23.18
tempered and
train hardened
15?7
4: r
Some 146 tons of this alloy wer't supplied in ingots from the Elektrochemisches
Kombinat, Bitterfeld, to the W e ' r t','>Z e4 . W t , , t, between
January and the end of February,, Part of this material way processed at
Hettstedt by the addition of 2j% of beryllium. After special heat treatment,
strength properties were achieved which were estimated to be greater than those
of commercial steel,, A plant at Niederfinow is being installed for the cold
working of this new copper alloy Produced at the E1ektrO hemisches KombixjsJ ,
Bitterfeld1since the plant at Hettstedt is not adequate for present needs.
The Niederfinow plant willundertake all further cold rolling of this type of alloy
in order to achieve a still greater hardness.
5. Intense interest is being paid to the production and working of these two
alloys, which have been found to be particularly suitable for apparatus and
equipment necessary in the chemical and shipbuilding industries.
6, It is hoped to cover 70% of the DDR4a copper requirements by the end of 1952.
The entire production is under strict Russian controls and more than 80%
of the total output will probably be earmarked for reparations works the
remainder wills go to key industries,
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Approved For Release 2006/08/08 : CIA-RDP82-00457RO13200360004-6