1333MK20QNMAN0031 AMENDMENT 0002.pdf

Offers must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended, by one of the following methods:

(a) By completing items 8 and 15, and returning or (c) By separate letter or electronic communication which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by letter or electronic communication, provided each letter or electronic communication makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

E. IMPORTANT: Contractor is not is required to sign this document and return copies to the issuing office.

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT 1. CONTRACT ID CODE

2. AMENDMENT/MODIFICATION NUMBER 3. EFFECTIVE DATE 4. REQUISITION/PURCHASE REQUISITION NUMBER 5. PROJECT NUMBER (If applicable)

7. ADMINISTERED BY (If other than Item 6) CODE

STANDARD FORM 30 (REV. 11/2016)

Prescribed by GSA FAR (48 CFR) 53.243

FACILITY CODE

9A. AMENDMENT OF SOLICITATION NUMBER

9B. DATED (SEE ITEM 11)

10A. MODIFICATION OF CONTRACT/ORDER NUMBER

10B. DATED (SEE ITEM 13)

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offers is extended. is not extended.

12. ACCOUNTING AND APPROPRIATION DATA (If required) copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS. IT MODIFIES THE CONTRACT/ORDER NUMBER AS DESCRIBED IN ITEM 14.

CHECK ONE A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT ORDER NUMBER

IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation data, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(b).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority)

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15C. DATE SIGNED

15A. NAME AND TITLE OF SIGNER (Type or print)

16C. DATE SIGNED

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

PAGE OF PAGES

6. ISSUED BY CODE

8. NAME AND ADDRESS OF CONTRACTOR (Number, street, county, State and ZIP Code) (X)

CODE

15B. CONTRACTOR/OFFEROR

(Signature of person authorized to sign)

16B. UNITED STATES OF AMERICA

(Signature of Contracting Officer)

Previous edition unusable

Attachment Page

PAGE 2 OF 13 1333MK20QNMAN00310002

Amendment 0002 to Solicitation 1333MK20PNMAN0031 is to accomplish the following:

1. Provide FOLLOW UP questions and answers from interested vendors.

Questions from interested Vendors as follows:

Q1. The Change of shaft material required a new drawing with calculations for shaft strength and submission to ABS for review and approval. In addition, current drawing does not indicate ABS approval which is normally clearly marked on the drawings.

A1. The machining details of the shaft have not changed from the original drawing, only the material. The material change was called out in the SOW.

2. Provide additional attachments below as follows:

a) Letter Tailshaft Material SubstitutionT1841778_RL_FERDINAND R.

HASSLER__111573572

b) M286-243-FM01-04(Shaft Arrangement)_22HS

c) Shaft Diameter Calcs Wyman-pwd_111573133

d) Shaft Material Memo_111573684

3. All of the Other Terms and Condition remains the same.

4. End of Amendment 0002.

PAGE 3 OF 13 1333MK20QNMAN00310002

ABS Global Engineering 1701 City Plaza Drive | Spring, TX 77389 USA

Task – T1841778 “FERDINAND R. HASSLER”, Class No.

11187051 VT Halter Marine, Hull: 1965 Flag: United States of America Subject: Tailshaft Material Substitution

Attention: Ms. Sandra J. Wyman National Oceanic & Atmospheric Administration (WCN: 615875)

The documents shown in the attached list are reviewed in accordance with the applicable requirements of the following:

· ABS Rules for Building & Classing Steel Vessels Under 90M in Length, 2019

Please note our review is based on the following conditions:

1 . The work is to be completed to the satisfaction of the attending ABS Surveyor.

Additionally, we have received your declaration stating that the materials used in the system indicated in the submittal are free from asbestos.

For any clarifications, contact Todd Stallings at 281 -877-6897, (PStallings@eagle.org).

Very truly yours, Roy H. Bleiberg Vice President, Engineering

Electronically Signed by: Emil Shtaygrud

Electronically published by ABS Houston.

Reference T1841778, dated 15-MAR-2019.

PAGE 4 OF 13 1333MK20QNMAN00310002

ABS Global Engineering 1701 City Plaza Drive | Spring, TX 77389 USA

Documents List

Drawing No.

Rev.

No.

Title Status

Correspondence 1 Memo Filed by ABS for Reference Only

Calculations 1 1 Filed by ABS for Reference Only

M286-243-FM01 -

Shaft Arrangements

(original)

Approved with amendment

Material 1 Data Filed by ABS for Reference Only

Electronic copies of the documents, appropriately stamped, are available in the ABS My

Eagle Portal through Engineering Manager.

Electronically published by ABS Houston.

Reference T1841778, dated 15-MAR-2019.

PAGE 5 OF 13 1333MK20QNMAN00310002

VT Halter Marine, Inc.

Vision Technologies

Systems

REV. 2 NOT ISSUED DUE TO CONTRACT TERMINATION

N/A

Reviewed for material substitution only

See A

BS H

ouston Lette r R ef T 1841778 D ated 15-M

AR-2

PAGE 6 OF 13 1333MK20QNMAN00310002

AQUAMET 22 H.S.

See A

BS H

ouston Lette r R ef T 1841778 D ated 15-M

PAGE 7 OF 13 1333MK20QNMAN00310002

See A

BS H

ouston Lette r R ef T 1841778 D ated 15-M

PAGE 8 OF 13 1333MK20QNMAN00310002

See A

BS H

ouston Lette r R ef T 1841778 D ated 15-M

PAGE 9 OF 13 1333MK20QNMAN00310002

See A

BS H

ouston Lette r R ef T 1841778 D ated 15-M

PAGE 10 OF 13 1333MK20QNMAN00310002

D Minimum 164.6563 mm 6.48252 in *Tail Shaft Diameter*

Material UTS

INPUT 125000 psi 861.845 Mpa

Vessel Length

INPUT 123.7 ft 37.7 m

Engine Rating

R INPUT 1800 rpm 229.6504 srpm

H INPUT 1300 bph 969.8 KW

Gear Ratio

INPUT 7.838

Select C1 540 Vessels 20m and over but below 45.7m with all other material or unprotected Grade 2 material

C2 160

Shaft Design Factor

K 1.26 4-3-1 Table 1 and Table 2, D Minimum 6.483718 in

P INPUT 1300 bhp

N INPUT 229.6504 srpm

St Input 60000 psi tortional yeild strength

S.F 9

Shaft Diameter Calculations NOAAS FERDINAND R. HASSLER (S-250) Using AQUAMET 22 HS

Prepared by Sandra J. Wyman, PE

IAW ABS Steel Vessel Rules Under 90m in Length 2018 Part 4 Ch 3 Section 1-7

Tortional Stress Considerations

S e e A

B S H o u s to n L e tt e r R e f T D a te d

-M

A R

-2

PAGE 11 OF 13 1333MK20QNMAN00310002

Vessels 20m and over but below 45.7m with all other material or unprotected Grade 2 material e A

B S H o u s to n L e tt e r R e f T D a te d

-M

A R

-2

PAGE 12 OF 13 1333MK20QNMAN00310002

UNITED STATES DEPARTMENT OF COMMERCE

National Oceanic and Atmospheric Administration Office of Marine and Aviation Operations

NOAA Ship Ferdinand R. Hassler (S-250)

UNH

Judd Gregg Marine Research Complex

Wentworth Rd, New Castle, NH 03854

05 MAR 2019

MEMORANDUM

FROM: Sandra J. Wyman, PE

Port Engineer, NOAA Ship FERDINAND R. HASSLER (S-250)

SUBJ: Shaft Material Deviation

REF: ABS Class Additional Requirements 208 and 209

ENC: 1. Drawing M286-243-FM01-04

2. Shaft Diameter Calculations

3. Aquamet Material Data Sheet

This memo formally requests technical review to substitute Aquamet 22 H.S., (UNS S20910) for

Aquamet 17 (UNS 17400) as the tail shaft material for NOAA Ship FERDINAND R. HASSLER

(S-250). The proposed material is sold under multiple trade names including but not limited to

Aqualloy 22 HS, XM-19 HS, and Nitronic 50 HS, all meeting the requirements of UNS S20910.

Enclosure 1 is the current as built shaft arrangements drawing. Enclosure 2 is a set of shaft diameter calculations performed in accordance with ABS Steel Vessel Rules Under 90m in

Length 2018, Part 4 Ch 3 Section 1-7. Enclosure 3 is a material properties data sheet containing information on both the original shaft material, Aquamet 17 and the proposed replacement material Aquamet 22 H.S.

The vessel currently has additional class requirements to remove and inspect the tail shafts at every dry docking. The original tail shafts were found to be severely pitted after 5 years of service and were replaced in June 2016. The replacement shafts were removed on 25 February

2019 and were also found to be heavily pitted. The root cause for the high level of corrosion appears to be the use of a stainless steel with mediocre pitting corrosion resistance in a stern tube without a stern tube flushing system that runs independently of the main engine.

In stainless steel alloys the proportion of chromium, molybdenum, and nitrogen have been shown to have a significant effect of susceptibility to pitting and crevice corrosion. The Pitting

Resistance Equivalent Number (PRE) is used a means of comparing similar alloys.

PRE = % Cr + 3.3 x %Mo + 16 x %N

Aquamet 17 is a high strength stainless steel allow with known pitting issues when exposed to stagnant sea water. It has PRE of 14.5-16.5. Aquamet 22 HS has a PRE of 24.3-38.9. For reference 316 stainless steel has a PRE of 22-28.

e e A

B S H o u s to n L e tt e r R e f T D a te d

-M

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-2

PAGE 13 OF 13 1333MK20QNMAN00310002

The proposed material substitution meets the strength requirements (125 ksi UTS) to outfit the ship with a 6.5” dia shaft (as designed) and provides a significant improvement in corrosion resistance.

S. J. WYMAN

e A

B S H o u s to n L e tt e r R e f T D a te d

-M

A R

-2

1.2

C:\PERFORM\FORMS\S30.FRP

Forms Management

C:PERFORMFORMSS30.FRP

Acrobat PDFWriter 2.01 for Windows D:19971010095222 D:19990614133004 Offers must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended, by one of the following methods:(a) By completing items 8 and 15, and returning or (c) By separate letter or electronic communication which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by letter or electronic communication, provided each letter or electronic communication makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

E. IMPORTANT: Contractor is not is required to sign this document and return copies to the issuing office.

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

1. CONTRACT ID CODE

2. AMENDMENT/MODIFICATION NUMBER

3. EFFECTIVE DATE

4. REQUISITION/PURCHASE REQUISITION NUMBER

5. PROJECT NUMBER (If applicable)

7. ADMINISTERED BY (If other than Item 6)

CODE

STANDARD FORM 30 (REV. 11/2016) Prescribed by GSA FAR (48 CFR) 53.243

FACILITY CODE

9A. AMENDMENT OF SOLICITATION NUMBER

9B. DATED (SEE ITEM 11)

10A. MODIFICATION OF CONTRACT/ORDER NUMBER

10B. DATED (SEE ITEM 13)

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offers is extended.

is not extended.

12. ACCOUNTING AND APPROPRIATION DATA (If required) copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS. IT MODIFIES THE CONTRACT/ORDER NUMBER AS DESCRIBED IN ITEM 14.

CHECK ONE

A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT ORDER NUMBER IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation data, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(b).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority) Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15C. DATE SIGNED

15A. NAME AND TITLE OF SIGNER (Type or print)

16C. DATE SIGNED

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

PAGE OF PAGES

6. ISSUED BY

CODE

8. NAME AND ADDRESS OF CONTRACTOR (Number, street, county, State and ZIP Code) (X)

CODE

15B. CONTRACTOR/OFFEROR

(Signature of person authorized to sign)

16B. UNITED STATES OF AMERICA

(Signature of Contracting Officer) Previous edition unusable

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NORFOLK VA 23510