ML19221B591
| ML19221B591 | |
| Person / Time | |
|---|---|
| Site: | 07109356 |
| Issue date: | 08/07/2019 |
| From: | Fowler W NAC International |
| To: | Document Control Desk, Office of Nuclear Material Safety and Safeguards |
| References | |
| Download: ML19221B591 (7) | |
Text
ANAC ii INTERNATIONAL Atlanta Corporate Headquarters 3930 East Jones Bridge Road, Suite 200 Norcross, GA 30092 Phone 770-447-1144 www.nacintl.com August 7, 2019 U.S. Nuclear Regulatory Commission 11555 Rockville Pike Rockville, MD, 20852-2738 Attn: Document Control Desk
Subject:
Reference:
Submission of a Replacement Page to Make an Editorial Correction to Table 8.1-1, of the MAGNATRAN Transportation Package Safety Analysis Report (SAR),
Revision 0 Docket No. 71-9356
- 1.
Certificate of Compliance No. 9356, Revision 0, for the Model No.
MAGNATRAN Transport Package, U.S. Nuclear Regulatory Commission (NRC), April 5, 2019
- 2.
ED20190069, Submission of the MAGNA TRAN Transportation Package Safety Analysis Report (SAR), Revision 0, July 1, 2019
- 3.
ED20190074, MAGNATRAN Transportation Package Safety Analysis Report (SAR), Revision 0, Replacement Pages, July 15, 2019 NAC International (NAC) hereby submits a replacement page to make an editorial correction to the minimum actual areal boron densities listed in Table 8.1-1 of the MAGNATRAN SAR.
Specifically, the Required Minimum Actual Areal Density for PWR fuel shown for Borated Aluminum Alloy and Borated MMC should be "0.0334" and not "0.334". The correct value for the areal density ("0.0334") was used in the MAGNATRAN SAR in Chapter 6, Table 6.1.1-1.
NAC requested this to be corrected in 2014 for the MAGNASTOR Cask System FSAR and Technical Specifications and was subsequently approved by the NRC. Revisions to the Technical Specification 0-5 were issued on February 1, 2016.
The error in Table 8.1-1 does exist in both the proprietary and non-proprietary versions of the MAGNA TRAN SAR. Enclosure 1 contains a separate replacement page for each of the proprietary and non-proprietary versions. These pages do not contain proprietary data therefore an Affidavit pursuant to 10 CFR 2.390 is not being provided.
NAC will not update our controlled copy of the proprietary and non-proprietary versions of the SARs with replacement pages until the NRC approves the consolidated application including supplements (References 2, 3 and ED20190093), since the CoC references Chapter 8 of the MAGNATRAN SAR.
ED20190093
,ANAC I INTERNATIONAL U.S. Nuclear Regulatory Commission August 7, 2019 Page 2 Atlanta Corporate Headquarters 3930 East Jones Bridge Road, Suite 200 Norcross, GA 30092 Phone 770-447-1144 www.nacintl.com Should you require further details regarding the submittal, please feel free to contact me at 678-328-1236.
Sincerely,,~
Mr. Wren Fowler Director, Licensing Engineering
Enclosures:
- Replacement Page 8.1-22 for Table 8.1-1, MAGNATRAN Transportation Package SAR, Revision O (Proprietary and Non-Proprietary Versions)
ED20190093
A NAC INTERNATIONAL ED20190093 Replacement Page 8.1-22 for Table 8.1-1, MAGNATRAN Transportation Package SAR, Revision 0 (Proprietary and Non-Proprietary Versions)
MAGNATRAN Transport Cask SAR Docket No. 71-9356 8.1.5.3.11 Additional Material Specifications April 2019 Revision 0 Boron carbide particles for MM Cs shall have an average size in the range of 10-40 microns and no more than 10% of the particles shall be over 60 microns. The material shall have negligible interconnected porosity exposed at the surface or edges.
Open porosity for borated aluminum and borated MMC neutron absorber material must be no greater than 0.5% unless qualification tests are performed to ensure that blisters are not produced under submerging and subsequent vacuum drying conditions.
Chemical composition of the boron carbide powder must meet the requirements of Table 1 of ASTM C 750-03, Type 3. Additional chemical requirements, applicable to a particular absorber material, may be placed on the boron carbide powder as a result of the "key manufacturing process controls" invoked by Section 8.1.5.3.10. Additional requirements may include, but are not limited to, upper limits on fluorine and chlorine content.
NAC International 8.1-21
MAGNATRAN Transport Cask SAR Docket No. 71-9356 April 2019 Revision O Table 8.1-1 Neutron Absorber Material Minimum 10B Loading Required Minimum Effective Required Minimum Actual Neutron Areal Density
% Credit Used in Areal Density Absorber (108 ! /cm2)
Criticality (108 ! /cm2)
Type PWR Fuel 8WR Fuel Analyses PWR Fuel 8WR Fuel Borated 0.036 0.027 0.04 0.03 Aluminum Alloy 0.030 0.0225 90 0.0334 0.025 0.027 0.020 0.03 0.0223 Borated MMC 0.036 0.027 0.04 0.03 0.030 0.0225 90 0.0334 0.025 0.027 0.020 0.03 0.0223 Boral 0.036 0.027 0.048 0.036 0.030 0.0225 75 0.04 0.030 0.027 0.020 0.036 0.0267 Table 8.1-2 Mechanical Properties of Neutron Absorber Property {units)
Ultimate Tensile Strength, Su (ksi) a Yield Strength, Sy (ksi) a a Equal to aluminum alloy 1100-0 properties NAC International 8.1-22 Values at Temperature (°F) 70 13.1 5.0
MAGNATRAN Transport Cask SAR Docket No. 71-9356 8.1.5.3.11 Additional Material Specifications April 2019 Revision 0 Boron carbide particles for MM Cs shall have an average size in the range of 10-40 microns and no more than 10% of the particles shall be over 60 microns. The material shall have negligible interconnected porosity exposed at the surface or edges.
Open porosity for borated aluminum and borated MMC neutron absorber material must be no greater than 0.5% unless qualification tests are performed to ensure that blisters are not produced under submerging and subsequent vacuum drying conditions.
Chemical composition of the boron carbide powder must meet the requirements of Table 1 of ASTM C 750-03, Type 3. Additional chemical requirements, applicable to a particular absorber material, may be placed on the boron carbide powder as a result of the "key manufacturing process controls" invoked by Section 8.1.5.3.10. Additional requirements may include, but are not limited to, upper limits on fluorine and chlorine content.
NAC International 8.1-21
MAGNATRAN Transport Cask SAR Docket No. 71-9356 April 2019 Revision 0 Table 8.1-1 Neutron Absorber Material Minimum 10B Loading Required Minimum Effective Required Minimum Actual Neutron Areal Density
% Credit Used in Areal Density Absorber (108 ! /cm2)
Criticality (1°8 ! /cm2)
Type PWR Fuel 8WR Fuel Analyses PWR Fuel 8WR Fuel Borated 0.036 0.027 0.04 0.03 Aluminum Alloy 0.030 0.0225 90 0.0334 0.025 0.027 0.020 0.03 0.0223 Borated MMC 0.036 0.027 0.04 0.03 0.030 0.0225 90 0.0334 0.025 0.027 0.020 0.03 0.0223 Bora!
0.036 0.027 0.048 0.036 0.030 0.0225 75 0.04 0.030 0.027 0.020 0.036 0.0267 Table 8.1-2 Mechanical Properties of Neutron Absorber Property (units)
Ultimate Tensile Strength, Su (ksi) a Yield Strength, Sy (ksi) a a Equal to aluminum alloy 1100-0 properties NAC International 8.1-22 Values at Temperature (°F).
70 13.1 5.0