ML19345E492
| ML19345E492 | |
| Person / Time | |
|---|---|
| Site: | Big Rock Point, Palisades File:Consumers Energy icon.png |
| Issue date: | 07/29/1977 |
| From: | Bixel D CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8102040672 | |
| Download: ML19345E492 (7) | |
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- , u,;3'y Director of Nuclear Regulation
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US Nuclear Regulatory Commission Washington, DC 20555 s-DOCKETS 50-155 AND 50-255 -
LICENSES DPR-6 AND DPR BIG ROCK POINT AND PALISADES PLANTS -
RESPONSE TO LETTER DATED MAY 20, 1977 -
REACTOR VESSEL SURVE1LLANCE By letter dated May.20, 1977, Consu=ers Power Company was requested to provide specific infor=ation concernin6 reactor vessel materials and associated surveil-lar.ce programs for the Big Rock Point and Palisades plants.
The respective reactor vessel vendors have been contacted and requested to provide the required data.
However, much of the data is unavailable at this time. The information that is available is being provided. For those responses stipulating "to be supplied," the required infor=ation vill be fo varded when received from the vendor. As yet, no specific date can be provided for a full response.
Item 1.
Provide the estimated maximum fluence (E>l Mev) at the inner surface of the reactor vessel vall as of March 31, 1977
Response
19 1.
2i,, itock Point - 1.5 x 10 n/cm.
Palisades - 1.82 x 1010 n/cm2, Item 2., Provide the effective full power years (EFPY) of operation accumulated r
g as of Mares 31, 1977
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Response
2.
Big Rcck Point - approximately 10.5 EFPY.
Palisades - approximately 2.2 EFPY.
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Item 3
Identify the firm or firms that fabricated your reactor vessel.
Response
'I 3.- & Big Rock Point - The vessel was fabricated by Combustion Engineering for d[ Palisades - The vessel was fabricated by Combustion Engineering.
Item h.
a.
Provide a sketch of the reactor vessel showing all materials velds, in the beltline region and provide an identification number for
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each material.
Response
i h.
a.
Big Rock Point - To be supplied.
Palisades - To be supplied.
Item h.
b.
Provide the following information for each of the velds in the belt-line region:
(1) Shop control number or procedure qualification number; (2) Tiller metal and heat number; (3) Type of flux and batch number; i
(h) Welding process (sub arc, electroslag, manual metal arc, etc);
(5) Post-veld heat treatment; (6) Chemical composition (particularly Cu, P and S content);
(T) Drop weight Tndti (8) RTndti (9) Charpy upper shelf energy (unirradiated);
(10) Tensile properties (unirradiated);
(11) Firm perforaing veld if more than one fins participated in velding; (12) The maximum end-of-life fluence at the vessel inner wall.
Response
h.b(1-12) Big Rock Point - To be supplied.
Palisades - To be supplied.
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c.
Provide the following information for each of the plates or forgings i
in the beltline region:
(1) Plate or forging serial number; i
'(2) Plate or forging heat number; 4
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. (3) ~ Plate or forging material specification number; (4) Plate or forging supplier; (5) Plate or forging heat treatment;
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(6) Chemical composition (particularly Cu, P and S content);
(7) ' Drop weight Tndti a g i
(8) RTndt (unirradiated);
M (9) Charpy upper shelf energy (unirradiated);
y (10) -Tensile properties (unirradiated);
(11) The maximum end-of-life fluence at the vessel inner val?.
Response
i k.c (l'& 2) Big Rock Point: Six plates were used to fabricate the vessel belt-line region. These plates and their heat numbers are:
Plate No (CE)
Heat No (Lukens Steel)
S-5503-3 192h6-3 I
S-5503-2 192h6-2 S-5503-1 192h6-1 S-5503-h 191h6-h S-5501 A-105h-3D S-5502 A-1917-3 Palisades: Six plates were used to fabricate the vessel belt-line region. These plates and their heat numbers are:
Plate No Heat No D-3803-1 C-1279-3 D-3803-2 A-0513-2 D-3803-3 C-1279-1 D-380h-1 C-1308-1 s-380h-2 C-1308-3 D-380h-3 B-529h-2 L.c (3) Big Rock Point: To be supplied.
Palisades: To be supplied.
h.c ' (h ) Big Rock Point: The plate supplier was Lukens Steel.
Palisades: To be supplied.
. 4.c' ( 5) Big Rock Point: The plate was supplied to Combustion Engineering in the hot rollad condition. The plate was heat-treated as full plate g
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- 1) 1600125 F for 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />.
- 2) Brine' quenched.
- 3) 1225 1 25 F for k hours.
h) Furnace cooled.
- 5) 1125-2 25 F for 2C hours.
- 6). Furnace cooled.
Palisades: To be supplied.
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I k.c (6) Big Rock Point:
To be supplied..
Palisades:. The chemical cocposition of the plates with respect to sulfur,
. phosphorus, and copper are documented for three of the flates as follows:
Plate Cu P
S t
4 D-3803-1
.25
.011
.019 M
D-3803-2
.25
.012
.021.
D-3803-3
.25
.010
.020 j
All figures in weight percent 4.c (T & 9) Big Rock Point: To be supplied.
j Palisades:
Drop weight and Charpy V-notch upper shelf energies are as follows:
j.
Plate No Tndt( F)
V-Notch (Ft Lb - 160 F)
D-3803-1
-30 138.0 D-3803-2
-30 132.0 D-3803-3
-30 1h0.3 D-3804-1
-30 109 0 i
D-380h-2
-k0 117 0 D-3804-3
-30 110.0 t
k.c (8, 10 & 11) Big Rock Point: To be supplied.
Palisades: To be supplised.
Item 5
a.
List the veld, plate and forging materials included in the vessel material surveillance program.
Respons_e; 5
a.-
Big Rock Point:
For the surveillance program, the ends of two plates were provided,o General 13.ectric Compan:, by Combustion Engineering.
A These were taken from plate numbers S-5503-2 and 3-5503-3 Palisades: For the reactor v,ssel surveillance program: All base metal specimens were takeu frva plate D-3803-1. All veld specimens were taken i
from the veld between plates D-3803-1 and D-3803-2.
b All HAZ specimens were those affected by the veld between plates D-3803-2 and D-3803-3 The specimens themselves were all taken from plate D-3803-3 1,4 i
Itee 5
b.
For each veld listed in 5.a. provide the information requested in items (1) through (11) of question h.b.
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5
Response
5.b (k.c (1 & 2)) Big Bock Point: The plate for the surveillance material was -
4 identified as:
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'I Plate No Heat No Size at 4r
.S-5503-2 19246-2 6 x 10 x Sh" S-5503-3 192h6-3 6 x 10.5 x 78" Palisades: To be supplied.
5.b (h.c (3 & h)) Oig Rock Point: To be supplied.
Palisades: To.be supplied.
15.b (k.c (5)) Big Rock Point:
For the surveillance program, the two plate ends were given a simulated post-veld heat' treatment of 1125 F fer 20 hours2.314815e-4 days <br />0.00556 hours <br />3.306878e-5 weeks <br />7.61e-6 months <br />. This treatment tras followed by furnace cooling.
Palisades: To be supplied.
5.b (h.c (6)) Big Rock Point:
Chemical tests for the plate ends from piste S-5503-3 from heat 192h6-3 showed.016 weight percent phosphorus and.021 weight percent sulphur.
Palisades: The chemistries of the surveillance veld specimens are as follows:
Welds Connecting D-3803-1 to D-3803-2 D-3803-2 to D-3803-3 Root Face Root Face S
.010
.010 S
009
.010 P
.011
.011 P
011
.012 l
Cu
.26
.22
- Cu 25
.20 Quantities in Weight Percent 5.b (4.c (10)) Big Rock Point: Tensile properties from Lukens Steel Test Data showed from plate S-5503-3:
Yield Strength - 52.3 ksi.
Tensile Strength - 86.h ksi.
Palisades: To be supplied.
- r 5.$ /4.c (7, 8, 9 & 11)) Big Rock Point
- To be supplied.
Palisades: To be supplied 4 Item 5
c.
For each plate or forging specimen litted in 5.a. provide the infor-mation listed in items (1) through (10) of question h.c.
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c.
Big Rock Point: To be sunplied.
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Palisades: To be supplie..
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Iteh 5.M.
Provide a copy of the report which describes the surveil'ance progra:
d for your recci;or vessel ( s), if available.
Beepance 5
d.
Eig Rock Point: To be supplied.
Palisades:
To be supplied.
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D A Bixel Nuclear Licensing Administratcr CC: JGKeppler, USNRC
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Consurars Power Company 7jp9f77 Nnc Jackson, MI oats Receiv ro D.A. Bixel a /1/77 ELETTER OmoTomizmo P M o*
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orscrirTied suctosums Rcf:%etter of May 20, 1977, concerning reactor, vessel materials and associated surveillance programs for the Big Rock Point and Palisades plants.
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h'y('..i.;*'*93.at PIANT NAME:
Big Rock Point and Palisades Plants (e-P)
VT 8/2/77 qAFEW FOR ACTION /INFORMATION ENVIPEN" ENTAL ASSIGNED A.Dr l
ASSIGNED AC:
V. MOORE (LTR)
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h,0 JECT MANAGER:
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PROJECT MANAGER:
LICENSING ASSISTANT:
LICENSING ASSISTANT
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