A04.01 Drop Weight Testing - SOW.pdf

STATEMENT OF WORK – CONTRACT TEST LABORATORY

Perform Three Drop Weight Test Sets of welded plate steel to determine Nil-Ductility Transition Temperature (NDTT) per ASTM E208.

Test laboratory performing ASTM E208 measurements must possess:

• Current accreditation to ISO/IEC 17025 for ASTM E208.

• Accreditation must be issued by an accreditation body accredited to ISO/IEC 17011 per ILAC MRA signatory

Calibration accreditation scope must include:

• Accredited location: Location on scope must match location where samples are sent and received for testing.

• ASTM E208 must be listed.

• The period of validity. (Must be current when testing is performed.)

Deliverables:

• Report per ASTM E208 & AWS B4.0 paragraph 7.8. Report temperatures & NDTT in °F. Report shall include:

o Base Metal Specification, Grade, Melt o Filler Metal Specification, Type, Lot o Welding Procedure Description o Joint Geometry o Specimen Type o Specimen Location, Crack Plane

Orientation, and Machined Notch Position o Type of Test Equipment o Fracture Appearance & Location o Test Conditions and Test Temperature o Results for each Specimen o NDTT determined o Any observation of unusual characteristics of the specimen or procedure.

• Ship (return) both used and unused sample specimens back to:

o Puget Sound Naval Shipyard

ATTN: Howah Lui, Code 138 [360-627-3461] BLD 460, Door 19 1400 Farragut Ave Bremerton, WA 98314

Testing Information:

• The following information & requirements are consistent between the three test sets o Test: ASTM E208 Nil-Ductility Transition Temperature (NDTT) Do not test colder than -90°F. If two “no breaks” at -90°F, then establish NDTT as -90°F.

Report NDTT in °F Drop Weight Specimen Size Type: P-3 o Test Assembly Type: Weldment Condition / Heat treatment: As-Welded o Joint Geometry: B2V.3 o Specimen Location / Orientation:

Transverse Weld Specimen, Notch is placed in the middle of the weld and runs in the direction of the weld & notched in weld thickness direction. The last number of the specimen specifies side of the test assembly.

• See Table 1 below for information & requirement differences between the three test sets

STATEMENT OF WORK – CONTRACT TEST LABORATORY

Table 1 – Table with information and requirement differences between the three test sets

Test Set 1 2 3

Welding Procedure Description

WPQ: 21

Test Assembly #: 138- 17-14-21R

Process: GMAW-Spray- Mechanized

WPQ: 22

Test Assembly #: 138- 17-14-22R5

Process: GMAW-Spray- Mechanized

WPQ: 54

Test Assembly #: 138- 17-14-54R

Process: FCAW- Mechanized

Customer will provide Type P-3 specimens with the following IDs.

This is in the preferred test order.

IDs are scribed on both ends of each specimen.

• 21R-DW-P1

• 21R-DW-P2

• 21R-DW-Q1

• 21R-DW-Q2

• 22A-DW-S1

• 22A-DW-S2

• 22A-DW-T1

• 22A-DW-T2

• 22A-DW-U1

• 22A-DW-U2

• 22A-DW-V1

• 22A-DW-V2

• 54R-DW-T1

• 54R-DW-T2

• 54R-DW-U1

• 54R-DW-U2

• 54R-DW-S1

Drop Weight Energy 350 ft-lbf 300 ft-lbf 350 ft-lbf

Expected NDTT -90°F -70°F -80°F

Weld Metal

(Material Tested)

MIL-E-23765/2E Type MIL-100S-1 (Heat 195370)

Yield Strength: 82 to 120 ksi

MIL-E-23765/2 Type

MIL-80S-3

Yield Strength: 68 ksi min (based on AWS ER80S-D2 (as welded condition))

NAVSEA TP T9074-BC-

GIB-010/0200 Type MIL-101TM (Heat 10391022)

Yield Strength: 82 to 110 ksi

Generic Material Combination

HSLA-100 to HY-80 with MIL-100S-1

HSLA-100 to DH36 with

MIL-80S-3

HSLA-100 to HY-80 with MIL-101TM

Base Metal A NAVSEA T9074-BD-GIB- 010/0300 Grade HSLA- 100 (Melt U5070)

NAVSEA T9074-BD-GIB-

010/0300 Grade HSLA- 100 (Melt U5070)

NAVSEA T9074-BD-GIB-

010/0300 Grade HSLA- 100 (Melt U5070)

Base Metal B

NAVSEA T9074-BD-GIB-

010/0300 Grade HY-80 (Melt U5959)

MIL-S-22698 Grade DH36 (Melt U6788)

NAVSEA T9074-BD-GIB-

010/0300 Grade HY-80 (Melt U5959)