Questions and answers for salvage boom parts REV 0001.docx

1. The solicitation lists (5) CLINS, the Abstract lists (4) items.

Answer: The solicitation and abstract in the statement of work have been revised to match CLINs.

2. May I please suggest that, since every little piece has an item number, the customer might simply list the item numbers that are to be included in each component and/or assembly to be provided?

Answer: Materials are to include all parts listed in each detail not just the weldments. Any material substitutions are not acceptable at this time.

3. SUMMARY OF CLIN ITEMS WITH QUESTIONS

CLIN 0001

SWIVEL PAD 10-C, ITEMS 180 & 181 WELDMENT. This part only?

CLIN 0002

SWIVEL PAD 10-B, ITEMS 180 & 184 WELDMENT. This part only?

CLIN 0003

DECK LEAD BLOCK SWIVEL ASSEM, THIS IS 8-A

COMPONENTS

FOUNDATION 8-B Consisting of 8-B item 93 and gussets item 95 (4) BUSHING 8-C item 94 SWIVEL 8-L item 112 KEEPER, NUT, GR FITTING items 91, 51 & 36 ??? TENSION ASSEM item 30 ??? Include this purchased item?

CLIN 0004

AFT VANG POST ASSEMBLY, SWIVEL 9-B

COMPONENTS

SHOULDER BOLT 9-F Item 199 with GR FITTING item 36 BUSHING 9-E Item 201 WASHER, NOT, COTTER PIN items 44, 203 & 52 ??? INCLUDE SHAFT KEEPER 8-N item 252 ???

CLIN 0005

AFT VANG POST ASSEMBLY, SWIVEL PAD 9-J

SINGLE COMPONENT

Answer: Materials are to include all parts listed in each detail not just the weldments. Any material substitutions are not acceptable at this time.

4. CLIN 0003 DECK LEAD BLOCK SWIVEL ASSEM, THIS IS 8-A

COMPONENTS

FOUNDATION 8-B Consisting of 8-B item 93 and gussets item 95 (4)

CAN 4340 BE USED INSTEAD OF THE FORGING???

Answer: As built (Dead Lead Block Assy FDN) PC 93 (ASTM 668 Class F; T=81-89ksi; Y=47-55ksi) PC 95 (ASTM A36; T= 58-75ksi, Y=34 ksi, E=22% min) Substitution AISI 4340 (T=185ksi, Y=125ksi) *Subject to material certification by ABS *Subject to CVN compliance of ABS Guide for Lifting Appliances *Material specification not listed in Base Material Specifications of AWS B2.1-B2.1M2014-AMD1

*Substitution permission contingent upon material acceptance from ABS and approval of WPS/PQR from ABS.

CLIN 0003

SWIVEL 8-L item 112; CAN 4140 BE USED IN LIEU OF THE CASTING???

CLIN 0005

AFT VANG POST ASSEMBLY, SWIVEL PAD 9-J; CAN 4140 BE USED IN LIEU OF THE CASTING???

Answer: As built (8-L Dead Lead Block Swivel, 9-J AFT Vang Post Swivel) 8-L PC 112 (ASTM A148 GR80-50; T=80ksi, Y=50ksi) 9-J PC 202 (ASTM A148 GR80-50; T=80ksi, Y=50ksi) Substitution AISI 4140 (T=95ksi, Y=60ksi, E=25.7%) *Subject to material certification by ABS *Subject to CVN compliance of ABS

Substitution permission contingent upon material acceptance from ABS.

5. General notes 5 and 9 call for non-destructive testing, radiographic and liquid penetrant respectively, but we do not see these notes being cited either in the parts list or on the drawings.

Answer: If parts are not called out in DWG for Radiographic and Liquid Penetrant, it is not required by the DWG. Section 7.1.1 requires NDT for parts regardless of the DWGs requirements.

6. General notes 2 and 8 specify a painting operations but we do not see these notes being cited either in the parts list or on the drawings. Reference 1 is cited but the NAVSEA drawing 631-5763437 is not provided.

Answer: General notes 2 and 8 are not applicable to these parts.

7. General note 3 specifies welding per ABS rules and cites References 2 structural details and 3 welding details but the NAVSEA drawings 101-5762672 and 101-5763504 are not provided.

Answer: All welding is required to be accomplished to current ABS Rules. ABS Rules and Standards should be referenced in lieu of NAVSEA drawings 101-5762672 and 101-5763504.

8. Regardless of the requirements of general note 3, can the contractor weld in conformance with generally accepted AWS welding standard?

Answer: All welding is required to be accomplished to current ABS Rules and ABS approved procedures.

9. Who is the specific manufacturer for the part number provided on the solicitation?

Answer: Oldenburg is the Original Equipment Manufacturer (OEM) for the winches but the original builder Peterson builders is the OEM of the entire boom. Both companies no longer exist.

10. The unit of measure for CLIN 0001 and CLIN 0002 is incorrect. There are no port and starboard requirement because these swivels attach to the Kingpost which is dead amidships. Furthermore, the stock list calls for only (1) each.

Answer: “Port & STBD” was an error. Please see Rev 1 of specification to reflect “Centerline” vice “Port & STBD

11. The required delivery of 30 December 2021 is probably not attainable because of the time required to make patterns and pour the steel castings for items 8A and 9J. There might be a slim chance if alloy steel bar stock (such as 4140) can be substituted. Can 4140 alloy steel and 80-50 cast steel be considered?

Answer: As built (8-L Dead Lead Block Swivel, 9-J AFT Vang Post Swivel) 8-L PC 112 (ASTM A148 GR80-50; T=80ksi, Y=50ksi) 9-J PC 202 (ASTM A148 GR80-50; T=80ksi, Y=50ksi) Substitution AISI 4140 (T=95ksi, Y=60ksi, E=25.7%) *Subject to material certification by ABS *Subject to CVN compliance of ABS Substitution permission contingent upon material acceptance from ABS.

12. Please let us know if the swivel pad in detail 10B, page 10 is acceptable as a casting instead of a weldment of part number 180, 181, and 182.

Answer: As built (Swivel Pad) PC 180 (ASTM A36; T= 58-75ksi, Y=34 ksi, E=22% min) PC 181 (ABS EH-36; T=71-90 ksi, Y=51 ksi) PC 182 (ABS EH-36; T=71-90 ksi, Y=51 ksi) Substitution Ordinary cast (T = 60ksi, Y=30ksi)

* Assumed ordinary since casting was not specified; need more information *Subject to CVN compliance of ABS Guide for Lifting Appliances *Elongation a factor for possible failure mode of casting ***Substitution NOT PERMITTED due to material strength properties not being met. (Bidder needs to provide the casting particulars for engineering evaluation)

13. Please let us know if the swivel pad in detail 10C, page 10 is acceptable as a casting instead of a weldment of part number 180, 183, and 184.

PC 180 (ASTM A36; T= 58-75ksi, Y=34 ksi, E=22% min) PC 183 (ASTM A36; T= 58-75ksi, Y=34 ksi) PC 184 (ASTM A36; T= 58-75ksi, Y=34 ksi) Substitution Ordinary cast (T = 60ksi, Y=30ksi)

* Assumed ordinary since casting was not specified; need more information *Subject to material certification by ABS *Subject to CVN compliance of ABS Guide for Lifting Appliances

**Substitution NOT PERMITTED due to material strength properties not being met. (Bidder needs to provide the casting particulars for engineering evaluation)

14. As a point of clarification, please let us know if we can submit a quote for the two machined complete castings below, as opposed to the complete assembly in detail 8A:

Answer: The solicitation includes all materials on Detail 8A not just the Swivels shown in Detail 8L, 8G, 9K and 9J.

15. We also plan to quote the two castings in detail 9K (#90) and 9J (#202) on page 9 as opposed to the complete assembly in detail 9B, if it meets with your approval.

Answer: The solicitation includes all materials on Detail 8A and 9B not just the Swivels shown in Detail 8L, 8G, 9K and 9J.

16. Item #s 180, 183 and 184 are made out of Mild Steel ASTM A36. Can Item #s 181 and 182 be made out of ASTM A36 as well?

Answer: Material for item 181 and 182 are required to be ABS EH36 or similar properties.

17. Detail 10-C and Detail 10-B are fabricated by weld. Can these 2x Details be manufactured as a single casting and then machined? If yes, what would be the acceptable material and grade?

PC 180 (ASTM A36; T= 58-75ksi, Y=34 ksi, E=22% min) PC 181 (ABS EH-36; T=71-90 ksi, Y=51 ksi) PC 182 (ABS EH-36; T=71-90 ksi, Y=51 ksi) Substitution Ordinary cast (T = 60ksi, Y=30ksi)

* Assumed ordinary since casting was not specified; need more information *Subject to CVN compliance of ABS Guide for Lifting Appliances

***Substitution NOT PERMITTED due to material strength properties not being met. (Bidder needs to provide the casting particulars for engineering evaluation)

18. Detail 8-A, shows Item #s 95 and Item #93 to be welded together. Can this be manufactured as a single casting and then machined? If yes, what would be the acceptable material and grade?

Answer: As built (Dead Lead Block Assy FDN) PC 93 (ASTM 668 Class F; T=81-89ksi; Y=47-55ksi) PC 95 (ASTM A36; T= 58-75ksi, Y=34 ksi, E=22% min) Substitution AISI 4340 (T=185ksi, Y=125ksi) *Subject to material certification by ABS *Subject to CVN compliance of ABS Guide for Lifting Appliances *Material specification not listed in Base Material Specifications of AWS B2.1-B2.1M2014-AMD1

*Substitution permission contingent upon material acceptance from ABS and approval of WPS/PQR from ABS.

19. Cres is listed under some of the material. What is Cres?

Answer: Corrosion Resistant Steel

20. The quantity was changed from 2 to 1 and then listed as a Set. A set is a quantity of 2 each (1 for the port side and 1 for the starboard side)?

Answer:

Assembly Detail 10C Ref 2.1.1, QTY = 1 (Centerline) 1 Assembly Total Assembly Detail 10B Ref 2.1.1, QTY = 1 (Centerline) 1 Assembly Total Assembly Detail 8A Ref 2.1.1, QTY = 1 (Port & STBD) 2 Assemblies Total Assembly Detail 9B Ref 2.1.1, QTY = 1 (Port & STBD) 2 Assemblies Total Assembly Detail 9K Ref 2.1.1, QTY = 1 (Port & STBD) 2 Assemblies Total

21. Shall we ship all parts Assembled?

Answer: Parts can be shipped unassembled but must be clearly identified.

22. Is there any specific Labeling that is required for each assembly?

Answer: Identify Parts by Detail Assembly and DWG Item Number.