(Sanitized)CIA INFORMATION REPORTS(Sanitized)

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP81-01044R000100010002-9
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 4
• Document Creation Date: December 16, 2016
• Document Release Date: September 27, 2004
• Sequence Number: 2
• Publication Date: September 8, 1950
• Content Type: MEMO

Approved For Release 2004/12/01 : CIA-RDP81-01044R000100010002-9
SEC RET
CENTRAL INTELLIGENCE AGENCY
WASHINGTON 25, D. C.
8 September 1950
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MEMORANDUM FOR ALL RECIPIENTS OF CIA INFORMATION REPORTS.
F7 I
SUBJECT: CIA
Information Reports
1, The first dissemination of the new series of CIA
Information Reports accompanies this memorandum,
The
0
reports will be produced on white paper,
2. The new series will report the results of examination,
g, and analysis of foreign materials and devices of intelligence
interest. It is anticipated that the items reported on will be almost
exclusively of Soviet or Satellite origin.
3. It has been found necessary to establish the new report series
to permit rapid distinction between other CIA reports and reports
resulting from SOVMAT activity,
25X1
Assistant Director
Office of Collection and Dissemination
SECRET
Approved For Release 2004/12/01 CIA-RDP81-010448000100010002-9
 ApprovedPKR91PK 0 , : CT ,r 1 :.:.'R A
CENTRAL INTELLIGENCE AGENCY
INFORMATION REPORT
COUNTRY USSR
SUBJECT Test & &amination of Soviet Manufactured Tin Can
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PLACE
ACQUIRED
DATE
ACQU I RE
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THIS DOCUMENT CONTAINS INFORMATION AFFECTING THE NATIONAL DEFENSE
OF THE UNITED STATES WITHIN THE MEANING OF THE ESPIONAGE ACT 50
U. S. C.. 31 AND 32. AS AMENJOED. ITS TRANSMISSION OR THE REVELATION
OF ITS CONTENTS IN ANY MANNER TO AN UNAUTHORIZED PERSON IS PRO-
HIBITED BY LAW. REPRODUCTION OF THIS FORM IS PROHIBITED.
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The result- of examination and tests of the can are as follows:
a. Tin Coating
Free Tin #/BB
Alloy Tin #/BB
Total Tin #/B';
Tin Coating - Very smooth
Steel Base Surface - Very
Physical Tests
Rockwell 30-T
Gauge (in.)
Bethco Stiffness
Amsler Bends
Tensile
Elongation 211
Pickle lag (sec.)
Microstructure
Grai:1 size
Inclusion rating
Steel Analysis
C. Copper
P. Phosphorus
S. Sulfur
*3n. Tin
*Mn. 1 ganese
*Al. Aluminum
*Co. Cobalt
*Si. Silicon
*Ni. Nickel
*Cr. Chromium
CLASSIFICATION
STATE
ARMY
NSRB
FBI
Approved For Release 2004/12/01 : CIA-RDP81-01044R000100010002-9
Body End
1.29 1.62
.21 .25
1.50 1.87
appearance
bright - Rolled with very bright rolls
57
.0112
33 Actual
26 Converted to .0111
20
53, 600w
27.0%
39-46-5o
x4
.31
.006
..005
than.01
.37
.03
fli
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DATE DISTR. &O Sep 190
NO. OF PAGES 3
NO. OF ENCLS.
(LISTED BELOW)
SUPPLEMENT TO
REPORT NO.
THIS IS UNEVALUATED INFORMATION
.08
.35
.011
.005
Less than .01
.07
Less than .03
CONFIDENTIAL
c01010E-ff-09
350 psi.
Cl & Dl
.011. .019
.06
.025 ?46
66
350 psi.
Cl & Dl
.o4
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*W.
Tungsten
Less than
.Ole
*V.
Vanadium
Less than
02
*11o,
Molybdenum
.02
*Cu.
Copper
.23
*Ti.
Titanium
Less than
.003
*Pb.
Lead
.003
*B.
Boron
Less than
.002
*As.
Arsenic
.001-.003
1-01044R0001 I
Less than .01
Less than .02
.01
.19
Less than .003
.004
Less than OQ2
.001-.003
*By spectrographic analysis
2. The evaluation of the sample tested is as follows:
a. Both the body and the end were made from hot dipped tin plate. This is
concluded in a general way from the heavy tin coating weight and the amount
of alloyed tin in the iron-tin alloy., both of which would be very unlikely
to be so heavy on electrolytic tin platen More specifically, removal of
the tin coating reveals the usual mottle pattern, which is the result of
a surface reaction of the flux and molten tin on the steel base as it enters
the tinning pot, and is of course, present only on hot dipped plate.
b. The appearance of the tin coating after removal of the enamel film is very
bright, smooth appearing, and highly reflective. The weight of the tin
coating is heavy- enough to insure adequate protection for normal to.long
[periods. The tin coating on both the body and end is very unusual in that
the so-called oil. lines or 'Roil veins- are practically invisible. This is
all the more unusual with this heavy tin coating and the fact that the base
steel was rolled,,, especially in the temper rolling, with very bright rolls,
so that it had a highly reflective surface. This practical elimination of
the oil lines results in a more thorough tin coverage for a given weight
of tin coating; and where the life of a can depends on a thorough uniform
coverage of tin, this tin plate without the usual "oil veins- offers an
improvement over a conventional tin coating of equal weight.
c. Examination of the physical testing results determined on the body and end
indicate that this phase of the tin plate production resulted in a product
comparable to our own tin plate. The tin plate was cold reduced to a thick-
ness equivalent to 90# base weight for the end and 100:; base weight for the
body. The Rockwell hardness values are equivalent to our temper T-3 which
in most cases is used for bodies and ends. The stiffness value is slightly
low as might be expected, considering that the steel was temper rolled with
very bright rolls. The bend test and percent elongation indicate good ducti-
lity. The microstructure reveals that a boanne eked St ?ucture quite similar
to that on tin plate production in this couriy~.n,c. i g onsidered satisfactory.
The so-called pickle lag tests indicate the effect of gas reactions with the
steel surface during annealing, and although the aim of our own mill and most
other producers is to keep this value low, most tests on domestic tin plate
approximate these values. Very low values in this test (below 10) indicate
an improved corrosion resistance on this variable of the annealing gas reac-
tion.
d. For the composition of the steel base, spectrographic analysis was resorted
to, for some of the elements in order to obtain a value for as many elements
as possible. T^is analysis obtained on this tin plate would be considered
undesirable for tin plate in the US for the following reasons:
a. Phosphorus is preferable held below .015 although in some cases .02
would be acceptable.
b. Sulfur is preferably held below .040
c. Tin is held to a.minimum preferable below .03-.04 principally
because of manufacturin, difficulties in rolling steel to such
thin gauges. Although in some very fevi cases values of .07 to
.06 have been encountered.
d. For corrosive foods, principally fruits and vegetables, nickel is
held to .04, and although no maximum is enforced for other general
uses it is preferably held low because of its hardening effect.
e. Again as in (d) above,, copper is held to a maximum of .06 for certain
fruit and vegetables and to .20 for other general uses.
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i
eo In summary on this important subject of quality, we consider that the tin coat-
ing is good with sufficient weight of tin to give adequate protection for normal
use. From the physical tests microstructure, etc, we consider that the practice
used in cold reducing, annealing, etc, would approximate the practice of domes-
tic mills. The composition of the steel base is somewhat undesirable for most
fends, and would certainly be undesirable for any corrosive fruits or vegetables.
fo It was pointed out above that the elimination of the oil veins in the tin coating
is very unusual. In fact, this is the first example of hot dipped tin plate that
we have seen,, to have such a smooth appearance for this weight of tin coating?
To the best of our knowledge it is unlike anything we or any other producer in this
country has manafacturede Although we have not had an opportunity to examine any
continuous hot dipped plate, such a different surface chara'teristic suggests some
such method of production. This is somewhat a conjecture, but it has been suggested
that this plate may be the product of a continuous hot dipping unit at the Dandstaht
Werke in Germany. We have only recently learned of this development in Germany.
g. Actual tin coating weights are shown above in paragraph l,- they are adequate to
ensure satisfactory quality. A value for the tin in the iron-tin alloy is also in-
cluded above and this value is normal for a hot dipped products
3. Production of processed crabrueat is rather limited in this area, but we believe
with fully enameled cans that the present facilities would use either the common
or standard classification of hot dipped tin plate. These classes would average
approximately I. l_C-l?20#,/BB and 1.30-1.40#/BB respectively and individual spot
tests would generally fail within the range ?9l /BB to 1,80#/BB0
4o In connection with this investigation we have secured two similar cans, packed
with HChatkaFl brand fancy crabmeat, obtained from a local food market. The
label was practically iientical except for the brand name and the fact that it
indicated Fancy Crabmeat. There has not -,,een sufficient time to complete full
examination of these two additional cans, but it is quite interesting to note,
that the tin. coating of the bodies and one end of each can is quite similar to
the specific can covered by this report. There is the same smooth surface with
the apparent elimination of the so-called "nil veins". It is also interesting
to note that the other end of each can was a conventional hot dipped tin plate
and under the enamel film, appeared somewhat discolored as though the tinplate
had aged somewhat,
Approved For Release 2004/12/01 : CIA-RDP81-01044R000100010002-9