PWS Weldment Testing.docx

PERFORMANCE WORK STATEMENT (PWS)

Nondestructive Testing of HY-100 Weldments

1. Background and Objective Naval Surface Warfare Center (NSWCCD) Codes 61, 62, and 65 requires nondestructive testing and evaluation (NDT&E) services to include visual testing (VT), magnetic particle (MT) and ultrasonic testing (UT) to support fatigue testing of HY-100 weldments. The Government will provide butt and tee weldments for NDT&E. The full list of required services and detailed requirements for each service are provided in section 3.0. This purchase assists the NSWCCD in providing on-site engineering services to the VIRGINIA Class submarine program office, PMS450, in support of the VIRGINIA class submarine construction and post-delivery phases.

2. Applicable References (provided as GFI, Section 7.1, below)

2.1 ASNT SNT-TC-1A, Recommended Practice for Personnel Qualification and Certification in Nondestructive Testing,Edition 2020

2.2 NAVSEA Technical Publication T9074-AS-GIB-010/271, Requirements for Nondestructive Testing Methods, RV1, 11 Sep 2014

2.3 MIL-STD-2035A, Nondestructive Testing Acceptance Criteria, 15 May 1995

3. Scope of Work The contractor shall perform VT, MT, and UT nondestructive testing services. The Government will bulk ship HY-100 weldments to them for nondestructive inspections. The contractor shall provide inspection procedures, conduct inspections per the PWS, report the results of inspections conducted, and return ship weldments back to the Government. The full list of services required and requirements for each service are provided below.

3.1 Contractor Responsibilities

· The contractor shall only perform work as directed in the official purchase order (PO) issued by contracting agency (NSWCCD). This technical statement of work does not in itself constitute a binding contract.

· The contractor shall not grind or contour any weldments provided by the Government.

· The contractor shall ensure that Level I operators are not be permitted to perform inspections unless physically accompanied by, and working in conjunction with, a Level II inspector or Level III examiner. All inspection results shall be interpreted, evaluated, and dispositioned by a Level II Inspector or Level III Examiner. Personnel shall be certified in accordance with reference 2.2 by way of reference 2.1, or equivalent per the contractor’s written practice.

· The contractor shall perform all inspections listed in Section 3.0 on all weldments, regardless of whether they pass or fail inspection criteria.

· The contractor shall ship inspected weldments back to NSWCCD. All shipped material shall be packaged to preserve the integrity of the specimens.

3.2 Visual Inspection of Butt and Tee Weldments

The contractor shall perform contact visual inspections of butt and tee weldments, consisting of the quantity in Table 1.

· The contractor shall perform testing in accordance with Chapter 8 of Reference 2.2.

· The contractor shall evaluate the butt and tee weldments to the Class 1 weld criteria found in Reference 2.3, Section 4.2.

· The contractor shall mark any indications on the specimen with indelible ink. The contractor shall mark the actual indication on the weld. Indications shall be recorded in accordance with Reference 2.2 and Section 7.

3.3 Magnetic Particle Inspection of Butt and Tee Weldments

The contractor shall perform contact magnetic particle inspections of butt and tee weldments, consisting of the quantity in Table 1.

· The contractor shall perform testing in accordance with Chapter 4 of Reference 2.2.

· The contractor shall evaluate the butt and tee weldments to the Class 1 weld criteria found in Reference 2.3, Section 6.2.

· The contractor shall mark any indications on the specimen with indelible ink. The contractor shall mark the actual indication on the weld. Indications shall be recorded in accordance with Reference 2.2 and Section 7.

3.4 Ultrasonic Inspection of Butt and Tee Weldments

The contractor shall perform ultrasonic shear wave testing of butt and tee weldments, consisting of the quantity in Table 1.

· The contractor shall perform testing in accordance with Chapter 6.6.4 of Reference 2.2.

· The contractor shall evaluate the butt weldments to the Class 1 weld criteria found in Reference 2.3, Section 8.2.1.

· The contractor shall evaluate the tee weldments to the Class 1 weld criteria found in Reference 2.3, Section 8.3.

· The contractor shall mark any indications on the specimen with indelible ink. The contractor shall mark the actual indication on the weld. Indications shall be recorded in accordance with Reference 2.2 and Section 7.

Table 1. Weldment quantities to be inspected

1. Each weldment will be inspected by VT, MT, and UT.

3.5 Return of Materials

The contractor shall ship all material back to the Government at the performer’s expense no later than 10 business days following the completion of all inspections.

Completed weldments shall be shipped to:

Attn: Matt McGuigan Naval Surface Warfare Center, Carderock Code 62, Building 9 9500 MacArthur Boulevard West Bethesda, MD 20817

4. Special Qualifications

4.1 The contractor shall be qualified to perform NDT inspections in accordance with Reference 2.2.

4.2 The contractor shall be a US based company.

5. Specimen Tracking and Labeling The Government will label the weldments prior to shipping the material to the contractor. The weldments are fabricated with HY-100 members welded by MIL-100S weld filler material. The contractor shall reference the Government provided labels when documenting all NDT inspection results.

6. Government Furnished Equipment/Property/ Information (GFI):

6,1 Upon award of contract, the Government shall provide GFI documents per the attached NAVSEA Form 4340/2 and as listed in Section 2, above.

6,2 The Government will bulk ship the weldments to the contractor for nondestructive inspections. The quantities of each weldment is shown in Table 1. The weldments are made of HY-100 material welded with MIL-100S filler material. Each weldment provided by the Government shall be inspected by VT, MT, AND UT.

6.2.1 Butt Weldments

Figure 1 shows the butt weld design. Figures 2 and 3 show dimensions for the 48 inch x 35 inch weldment. Figures 4 and 5 show dimensions for the 23.5 inch x 16 inch weldment. Figures are not drawn to scale.

Figure 1. Butt Weld Design (B2V.3 from MIL-STD-22D) Weld Location

Figure 2. Butt Weldment (48 inch x 35 inch), QTY: 9

Figure 3. Cross Section - Butt Weldment (48 inch x 35 inch), QTY: 9

Figure 4. Butt weldment (23.5-inch x 16 inch), QTY: 1

Figure 5. Cross Section - Butt weldment (23.5 inch x 16 inch), QTY: 1

6.2.2 Tee Weldments

Figure 6 shows the tee weld design. Figures 7 and 8 show dimensions for the 48 inch x 35 inch weldment. Figures 9 and 10 show dimensions for the 23.5 inch x 16 inch weldment. Figures are not drawn to scale.

Figure 6. Tee Weld Design (T2V.2 from MIL-STD-22D)

Figure 7. Tee Weldment (48 inch x 35 inch), QTY: 10

Figure 8. Cross Section - Tee Weldment (48 inch x 35 inch), QTY: 10

Figure 9. Tee Weldment (23.5 inch x 16 inch), QTY: 1 Weld Location

Figure 10. Cross Section: Tee Weldment (23.5 inch x 16 inch), QTY: 1

7.0 Deliverables

7.1 Nondestructive Inspection Procedures and Procedure Qualification Data The contractor shall provide the inspection procedure for each method in accordance with the requirements of NAVSEA Technical Publication T9074-AS-GIB-010/271 (reference 2.2) unless otherwise indicated within the PWS. Written procedures shall be signed by the cognizant Examiner of the Contractor’s Activity, certifying that the procedures meet the requirements of NAVSEA Technical Publication T9074-AS-GIB-010/271 (reference 2.2) or applicable inspection requirements document referenced herein, and have been qualified by proving that known discontinuities, either natural or artificial, can be reliably detected and evaluated. The contractor shall electronically provide all inspection procedures and data documenting procedure qualification to the Government TPOC NLT three weeks following award of contract. Within three weeks of receipt of procedures, the TPOC will approve the procedures as submitted, or, request the contractor provide revisions within timeframe determined by the TPOC. If procedures need revisions the contractor shall provide the procedures within three weeks and resubmit to the TPOC for review.

7.2 Nondestructive Inspection Records/Reports

An inspection record shall be completed for each component inspected and for each inspection method required by the SOW. Inspection records shall be written in accordance with the requirements contained within NAVSEA Technical Publication T9074-AS-GIB-010/271 (reference 2.2), and shall include as a minimum, the record requirements listed in the applicable inspection method section therein. In addition to the records requirements contained within NAVSEA Technical Publication T9074-AS- GIB-010/271 (reference 2.2) the following additional information shall be included within the records for each inspection method. For ultrasonic inspections, the contractor shall record the location of indications (as referenced to the part, for example distance from centerline, distance from specimen edges) as well as the discontinuity length, depth, and amplitude.

The contractor shall electronically provide the inspection records to the Government no later than fourteen (14) calendar days following the completion of all inspection methods.

8. Period of Performance The period of performance for this contract is 12 months from the date of contract award.

9. Security Requirements All work on this contract shall not exceed the classification of Unclassified.

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