WS19143B_SCN_6.pdf

DISTRIBUTION STATEMENT D: DOD and DOD Contractors, Program Executive Office Theater Surface Combatants (PEO TSC), ATTN: PMS-410.

Warning - Export Controlled.

DESTRUCTION NOTICE: Destroy by any method that will prevent disclosure of contents or reconstruction of the document.

SPECIFICATION CHANGE NOTICE (SCN) 1. DATE (YYMMDD)

Form Approved

011115 OMB No. 0704-0188

Public reporting burden for this collection of information is estimated to average 2 hours per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden, to Department of Defense, Washington Headquarters Services, Directorate for Information Operations and Reports, 1215 Jefferson Davis Highway, Suite 1204, Arlington, VA 22202-4302, and to the Office of Management and Budget, Paperwork Reduction Project (0704-0188), Washington, DC 20503.

2. PROCURING

ACTIVITY NO.

PLEASE DO NOT RETURN YOUR COMPLETED FORM TO EITHER OF THESE ADDRESSES. RETURN COMPLETED FORM TO THE GOVERNMENT ISSUING CONTRACTING OFFICER FOR THE CONTRACT/ PROCURING ACTIVITY NUMBER 3. DODAAC

LISTED IN ITEM 2 OF THIS FORM.

4. ORIGINATOR 5. SCN TYPE

a. TYPED NAME (First, Middle Initial, Last) PROPOSED APPROVED

Lee Gangl 6. CAGE CODE 7. SPEC. NO.

b. ADDRESS (Street, City, State, Zip Code) 53711 WS 19143B

UNITED DEFENSE, ASD 8. CAGE CODE 9. SCN NO.

4800 East River Road Minneapolis, MN 55421-1498 44114 006

10. SYSTEM DESIGNATION 11. RELATED ECP NO. 12. CONTRACT NO. 13. CONTRACTUAL AUTHORIZATION

MK 41 VLS FVLS - 2043 N00024-98-C-5371

14. CONFIGURATION ITEM NOMENCLATURE 15. EFFECTIVITY

Launching System, Vertical MK 41 all MODsl Effective as of Technical Concurrence

This notice informs recipients that the specification identified by the number (and revision letter) shown in Item 7 has been changed.

The pages changed by this SCN are those furnished herewith and carry the approval date of the related ECP listed in Item 11. The pages of the page numbers and dates listed in items 16 and 17, combined with the non-listed pages of the original issue of the revision shown in Item 7, constitute the current approved version of this specification.

16. PAGES AFFECTED BY THIS SCN TYPE OF APPROVAL

DATE

PAGE(S) CHANGE* (YYMMDD)

a. b. c.

7, 8, 10, 12, 13, 19, 20, 23, 28,42, 43, 44, 45, 46, 47, 48, and 51 S 10a A

17. SUMMARY OF PREVIOUSLY CHANGED PAGES

DATE SUBMITTED TYPE OF

APPROVAL

DATE

SCN

NO.

RELATED ECP NO. PAGE(S) (YYMMDD) CHANGE* (YYMMDD)

a. b. c. d. e. f .

SCN 1

NOR 15

FVLS-1315 4,6,7,16,23,33,42,44,45,46,47, & 48 910128 S 910718

SCN 2

NOR 16

-- 42,45,47, & 48 910717 S 911018

SCN 3

NOR 17

FVLS-1495 11 920317 S 920724

SCN 4

NOR 18

FVLS-1772R1 4,36,42, & 43 950830 S 951012

SCN 5

NOR 19

NSWC - xxxx 28, 44, 47, 48 980803 S 980911

* "S" indicates supersedes earlier page. "A" indicates added page. "D" indicates deletion.

18.a. GOVERNMENT ACTIVITY

NSWCDD

c. SIGNATURE d. DATE SIGNED

(YYMMDD)

b. TYPED NAME (First, Middle Initial, Last)

Michael J. Puig 011221

DD Form 1696, APR 92 Previous editions are obsolete

SCN 6 Page 2 of 19

WS19143B

15 November 2001

(Application for copies should be addressed to the Society of Automotive Engineers Inc., 400 Commonwealth Drive, Warrendale, PA 15096)

(Technical society and technical association specifications and standards are generally available for reference from libraries. They are also distributed among technical groups and using Federal Agencies.)

3. REQUIREMENTS

3.1 Equipment

3.1.1 General. Welding equipment such as welding machines, torches, regulators, power supplies and filler metal feed mechanisms shall be capable of making satisfactory welds to this specification when operated by a qualified welder or welding operator using the specified filler rod, wire or electrodes, as applicable.

3.1.2 Welding equipment. If for any reason the procuring activity or cognizant inspector at any time doubts the capability of any welding equipment to function satisfactorily, qualification tests applicable to the type of work for which the equipment is intended shall be required. The tests are to be made by a welder or welding operator qualified for the material and type of welding process. If under these conditions the applicable test requirements cannot be met, the equipment shall not be used until the necessary repairs, adjustments, or replacements are made.

3.1.3 Heating appliances. Furnaces used for pre-weld heating of parts shall have suitable pyrometric controls to maintain temperatures within plus or minus 25 degrees Fahrenheit (F). Torches, strip heaters, or induction heating may be used for preheating provided the specified temperature range is maintained by using a suitable contact pyrometer, temperature indicating sticks, or temperature indicating liquids acceptable to the cognizant inspector.

3.2 Welding processes. Unless otherwise specified, the use of welding processes shall be as follows: shielded metal arc welding (SMAW) may be used at the option of the fabricator for the material combinations listed in Procedures 1 through 10; gas metal arc welding (GMAW) may be used at the option of the fabricator for the material combinations listed in Procedures 1 through 10; gas tungsten arc welding (GTAW) may be used for material combinations within the limitations of Procedures 4, 6, 8, 9, and 10; flux cored arc welding (FCAW) may be used at the option of the fabricator for the material combinations noted in Procedures 4, 6, 8, and 9; submerged arc welding (SAW) may be used with material combinations noted in Procedures 4 through 9; laser beam welding (LBW) may be used with material combinations noted in Procedures 6, 7, 8 and 9. Restrictions for tack welds are specified in 3.13.1. Restricitions for weld repairs are specified in 3.12.3.

SCN 6 Page 3 of 19

3.3 Materials

3.3.1 Base metals. Base metal and combinations listed in Tables V and VI and Procedures 1 through 10 are satisfactory for welding to this specification. The material specifications are shown in Table V, which refers to the yield stress grouping that is shown in Table VI. Table VI also lists the procedure number to be used with the particular material combination. Procedures 1 through 10 follow Table VI in numerical sequence.

3.3.1.1 Joint welding procedure. Joint welding procedures (weld schedules) are required as noted below for materials combinations listed in Procedures 1 through 10.

a. Each type of welding process (SMAW, GMAW, GTAW, FCAW, SAW, LBW).

b. Each type of joint.

c. Each combination of material listed in Procedures 1 through 10.

d. Each nominal thickness of material or combinations of nominal thicknesses.

e. Different preheats or different inter-pass temperatures.

f. Each method of welding (manual, semi-automatic and automatic)

Figure 1 is a suggested form for a Joint Welding Procedure, and although other forms and tables may be used, the information contained in Figure 1 is the minimum information acceptable. The Joint Welding Procedure shall meet the requirements of this specification including the requirements of Procedures 1 through 10.

3.3.2 Filler metals.

3.3.2.1 Welding with filler metals. The filler metal specification listed for the material combinations in Procedures 1 through 10 shall be used for welding to this specification only as specified for the specific material combination and welding process.

3.3.2.2 Handling of filler metal.

3.3.2.2.1 GMAW, GTAW, FCAW, SAW, and LBW filler metal. All filler metal for GMAW, GTAW, FCAW, SAW and LBW shall be stored in a clean dry area at a temperature of 65 to 120 degrees F. It shall be checked to assure no moisture is present prior to use. All traces of moisture shall be wiped dry or otherwise removed. All material shall be clean and dry prior to use.

SCN 6 Page 4 of 19

3.3.3 Welding gases. Welding gases used for GMAW, GTAW, FCAW and LBW shall be designated welding grade by the supplier and the dew point shall be not more than minus 65 degrees F. When necessitated by the welding procedure requirements, other dew points and purities may be specified. In this case, the dew point and purities shall be specified in a Joint Welding Procedure. The dew points shall be maintained at the welding head. For procedures 1, 2, 3 and 10, the maximum limit of oxygen shall not exceed 2 percent (by volume) when added to argon for welding. For procedures 4, 5, 6, 7, 8, and 9, the maximum limit of oxygen shall not exceed 8 percent (by volume) when added to argon for welding.

3.3.4 Tungsten electrodes: Non-consumable electrodes shall conform to the requirements of AWS A5.l2.

3.4 Qualification/certification.

3.4.1 Welders and welding operators. Welders and welding operators shall be qualified for the material combinations they will weld in production as listed in Procedures 1 through 10 in accordance with MIL-STD-248 or MIL-STD-1595. The following exceptions apply to MIL-STD-248 (the first exception (a) applies also to MIL-STD-1595).

a. Qualification of a welder or welding operator for a specific material combination also qualifies the welder or welding operator for welding other material combinations as listed in Table I.

b. Prerequisite as noted under welding performance qualification in MIL-STD-248 does not apply.

c. Alternate qualification methods as noted under welding qualification performance in MIL-STD-248 do not apply.

d. Deleted.

e. Material combinations and filler material shall be as specified for the particular material combination listed in Procedures 1 through 10 for which qualification is desired.

f. Performance qualification for LBW shall be in accordance with requirements of MIL-STD-248 for special welds and sections 3.4.1.a through 3.4.1.e above: The performance qualification program shall be submitted with procedure data for approval by the cognizant contractor. The LBW performance qualification program shall include the following elements:

SCN 6 Page 5 of 19

1. Visual inspection training and testing are required – it is recommended that LBW visual inspection training and testing be conducted in accordance with MIL-STD-248.

2. Weld/fabricate performance qualification test assemblies – LBW performance qualification test assemblies shall be prepared in accordance with test numbers 1 or 2 per MIL-STD-248 and the written Joint Welding Procedure.

3. Inspect test assemblies – LBW performance qualification test assemblies shall be inspected in accordance with test numbers 1 or 2 per MIL-STD- 248.

4. Evaluate destructive and non-destructive test results – LBW performance qualification test evaluation shall be in accordance with MIL-STD-248 or equivalent.

5. Written records of performance qualifications are required and shall be maintained – it is recommended that LBW performance qualification record maintenance, including requirements for maintaining certification and requalification, be in accordance with MIL-STD-248.

3.4.2 Preproduction joints. Preproduction joints selected from a production part (same materials, thicknesses, joint configuration and other parameters) shall meet the requirements of 3.11 in addition to meeting 95 percent of the material specification tensile properties (tensile requirements are waived when butt weld tensile specimens cannot be obtained from the weld joint). Tensile specimens shall be prepared and tested per 4.5.6.

3.4.3 Production joints. Production joints, in addition to meeting the requirements of the drawing, shall, when sectioned for tests, meet the same requirements specified for preproduction joints in 3.4.2.

3.5 Weld design.

10a

SCN 6 Page 6 of 19

3.6.2.1 Welded structures. The responsibility for furnishing welded structures that will finish to the dimensions shown on the applicable drawings, without additional straightening or other modifications, shall rest with the fabricator. When no allowance for shrinkage is made on weldment drawings, it shall be the responsibility of the fabricator to make necessary shrinkage allowances in dimensions of component parts to insure the completed weldment complies with the applicable assembly requirements.

3.6.2.2 Allowance for machining. Unless otherwise specified, when a fabricator performs only the welding (not machining), all part of a welded structure where a machine finish is required shall have an allowance of not less than 1/16 inch for machining. When a fabricator performs, or is responsible for the welding and subsequent machining, he shall be responsible for the amount of machining allowance where a machined finish is required. Stock for finishing shall not be so great as to require excessive machining.

3.6.3 Heating for forming. Heating for forming is limited to the maximum temperature permitted for preheating and interpass temperatures in Procedures 1 through 10 for the particular material to be formed.

3.6.4 Joint preparation. The weld joint may be prepared by mechanical cutting, machining, grinding, arc-air gouging, flame cutting, plasma arc cutting, or by laser cutting.

If the joint is prepared by plasma arc cutting or by flame cutting, the edges must be uniform and smooth within the limits of the cutting process and be free from all loose scale and slag accumulations before welding. The discoloration which may remain on the flame cut surface is not considered detrimental oxidation. All arc-air gouged surfaces shall be ground, machined, or mechanically cut to remove not less than 0.03 inch of the surface to assure removal of any carbon impregnation. The plates shall not be stacked when heat cutting.

3.6.5 Examination prior to welding. Prior to welding, production weldments shall be examined for fitup, cleaning, alignment, filler metal, joint preparation, compliance to weld schedules and other parameters necessary to meet the requirements of this specification and the drawing.

3.6.6 Moisture. All moisture shall be removed and the surface thoroughly dried prior to welding. It may be necessary to heat the assembly above 100 degrees F to assure there is no moisture because those materials requiring low hydrogen electrodes can crack as the result of moisture in the joint. No welding shall be done in locations unprotected from rain or snow, or when the weldment temperature is below 60 degrees F.

3.6.7 Surface preparation. The joint area of parts to be welded shall be cleaned of oils, dirt and other materials that may be detrimental to satisfactory weldments.

3.7 Fitup and mismatch.

SCN 6 Page 7 of 19

3.7.1 Fitup. Joint fitup shall be in accordance with drawing requirements. It not specified on the drawing, joint fitup shall in general be in accordance with welding practices as recommended by the American Welding Society. Joint fit-up for Class 1 and Class 2 LBW weldments shall be in accordance with best commercial practices.

The range of permissible joint fit-up variations for Class 3 LBW weldments shall be verified using pre-production or post-production joint samples in accordance with 3.4.2, 3.4.3 and 4.5.3.b.

3.7.2 Mismatch. Mismatch of the joint shall not exceed 10 percent of the base metal (thinner material being joined) thickness after welding.

3.8 Welding and heating.

3.8.1 Preheat and interpass temperatures. Preheat and interpass temperatures shall be as listed in Procedures 1 through 10 for the particular material combination being welded.

3.8.2 Post weld heating. Unless otherwise specified on the drawing, weldments shall not be post-weld heated in any manner to temperatures above the maximum temperature listed in Procedures 1 through 10 for preheat and interpass temperatures for the particular material combination weldment.

3.8.3 Heat input. The heat input noted in Procedures 1 through 10 shall be determined as follows and shall be a part of the joint welding procedures:

Heat Input in kilojoules/inch of weld (Kj/in) = [amperes x volts x 0.06] ÷ [welding speed (inches/min)].

3.8.4 Fillet weld shrinkage. Soft steel wire may be used as a pedestal as shown in Figures 3A and 3B to reduce the effects of shrinkage forces on the weld. As an alternate, the toe area of the fillet weld may be buttered (the buttered weld is ground off prior to welding the fillet weld) as shown in Figure 3C.

3.9 Welding assembly sequence.

3.9.1 Control of residual stresses. The actual welding of the structure and all parts entering into the assembly shall be done in a manner that reduces residual stresses in the welds to a minimum. As far as practical, to reduce welding stresses the various steps in welding shall be carried out so that external restraint shall not resist the shrinkage incident to the welding and add stresses to those that are unavoidable in a free joint.

3.9.2 Control of shrinkage. Insofar as possible, the welding of an assembly shall begin at some central location situated so that outlying or adjacent parts may be added progressively. The unwelded sections shall be free to shrink toward the central welding location. No excessive welding, bolting or rigid restrictions shall be employed on parts at outlying points which will prevent their free movement toward the center of welding. The welding shall progress systematically so shrinkage on all sides of the structure will be equal or balanced, insofar as practicable. Where possible, intersecting systems, framing or stiffeners shall be joined to each other before they are joined to plate or flange members.

SCN 6 Page 8 of 19

3.12.1 Repair of surface defects. Unless otherwise specified, repairs may be made to surface defects located by visual, magnetic particle or penetrant examinations provided the requirements of the drawing and this specification are met. Defects shall be removed prior to repair.

3.12.2 Repair of internal defects. Unless otherwise specified, internal defects may be repaired with the approval of the cognizant inspector. Defects shall be removed prior to repair. To assure removal, the area shall be checked by dye penetrant examination per ASTM E165 (procedure optional) or magnetic particle inspected per MIL-I-6868. (Parameters optional or as required to meet requirements). Prior to repair welding, the area shall be thoroughly cleaned of any penetrant or magnetic particle residues or other debris that may affect welding. If additional retesting is required for the defect, the procedure shall be by the same NDT method as was initially used to evaluate the defect.

3.12.3 Repair welding. Except as noted, repair welding may be done by SMAW, GMAW, GTAW, FCAW, SAW, or LBW at the option of the fabricator. Heat input requirements of Procedures 1 through 10 shall also apply to repair welding. Repair welding of material combinations 1 through 10 shall be limited to one heat repair in the original weld zone. All weld repairs shall be documented. Additional repairs shall require engineering approval from the procuring activity. Repair welding shall meet the same requirements as the original welding criteria.

3.12.4 Repair weld inspection. Unless otherwise specified, the repaired area shall be subject to the same inspections as the original weldment and shall meet the same requirements.

3.13 Tack welds.

3.13.1 Tack weld process. Unless otherwise specified, the tack weld process, SMAW, GMAW, GTAW, FCAW, SAW or LBW shall be at the option of the fabricator, but the limitations and requirements noted in 3.12.3 for repair welding also apply to tack welding. The filler metal shall be the same as that specified for the weldment.

3.13.2 Tack welds removed. Tack welds removed prior to production welding are not subject to inspection as welds. The tack welded assembly may be inspected prior to production welding for fitup, mismatch and other applicable requirements.

3.13.3 Incorporated tack welds. Tack welds that are not removed are subject to inspection with the weld and shall be visually inspected prior to welding over the tack weld for cracks and other discontinuities that may cause an unsatisfactory weldment.

3.13.4 Tack weld deposit. Tack welds to be incorporated shall be deposited in a manner to facilitate their incorporation into the final weld without causing a discontinuity in the deposit.

SCN 6 Page 9 of 19

3.13.5 Additional stress. Tack welds shall be placed so that stresses in welds caused by their restricting the contraction of parts will be held to a minimum.

3.14 Casting repair.

3.14.1 Weld repair of castings. When this specification is referenced on the casting drawing, or other applicable documents, the casting shall be repair welded if required, prior to machining. Inspection records and marking shall be in accordance with 3.16 and 3.17.

3.14.2 Size of repair area. Unless otherwise specified, the area to be repair welded, including the defect and surrounding area (preparation-ground out area) shall not be greater than one and one half (1-1/2) inches in the greatest dimension, nor deeper than one third (1/3) of the thickness of the casting, (wall thickness) in the area to be repaired.

3.14.3 Preparation. The defect shall be completely removed and the area sloped gradually toward the deepest area prior to welding. There shall not be any sharp edges or thin fins protruding into the area to be welded. To assure the defect has been completely removed, the area may be penetrant inspected per ASTM E165 (procedure optional).

3.14.4 Cleaning. The area to be welded shall be cleaned as specified herein. If penetrant inspection has been used, the residues shall be completely removed.

3.14.5 Welding Process. The welding process for casting repair, SMAW, GMAW, GTAW, FCAW, SAW, or LBW, is at the option of the fabricator.

3.14.6 Filler metal. Filler metal shall be in accordance with the applicable procedure.

3.14.7 Heating and heat treatment of repaired casting. Pre-weld and post-weld heating shall be as specified herein. Repair welding of the casting should be prior to any heat treatment of the casting. Unless otherwise specified, if the casting has been heat treated prior to repair, then the casting shall receive a complete heat treatment in accordance with the drawing or casting specification, as applicable, after repair welding.

3.14.8 Inspection of the repaired casting. After repair welding, the weld shall be ground flush, within 0.010 inch of the surface of the casting. The welded area of the casting shall, as a minimum, be visual and penetrant inspected (ASTM E165, procedure optional) and shall meet the applicable requirements specified herein for welds.

3.14.9 Casting properties after repair welding. Unless otherwise specified, after repair welding and heat treatment, the casting, including the weld repair area, shall meet all requirements originally specified for the casting.

SCN 6 Page 10 of 19

4.5 Test methods.

4.5.1 Visual Inspection. All weldments shall be visually inspected for compliance to the applicable requirements of Section 3 (Table II) and for workmanship. Since visual inspection is limited as to detection of internal discontinuities, particular attention shall be paid to the toe of welds for incipient lack of fusion and the back of butt welds (welded from one side) for incipient lack of penetration. In areas of doubt, penetrant inspection (see 4.5.7) or radiographic inspection (see 4.5.8.6) may be used for resolution. Other aids such as magnifiers may be used for visual inspection as deemed necessary. Auxiliary inspection using magnification and penetrant inspections are recommended when weld-bead width falls below .06 inches (such as the comparatively narrow welds produced during some specialized LBW applications). Other than as noted herein, Class 3 weldments are visually inspected only.

4.5.2 Mensuration. Measuring instruments shall be used as required to assure limiting dimensions noted herein are met. Prior to acceptance or rejection, the observed dimension(s) shall be rounded off in accordance with ASTM E29 to the number of places specified in this document. This is not applicable to drawing dimensions.

4.5.3 Detection of internal defects. When weldments are not sectioned or radiographic inspection is not a drawing or classification requirement, internal discontinuities such as lack of fusion, lack of penetration, porosity, pinholes, and linear discontinuities are not readily detected, hence are controlled by at least three combinations of the following:

a. Assure that a qualified welder or welding operator does the welding.

b. Assure that the correct procedure is used.

c. Radiographic spot check questionable areas. This is not usually done unless the appearance of the weld is not to normal expectations (see optional inspection 4.5.8.6.).

d. A simulated production joint or a preproduction joint is prepared and destructively examined to assure the procedure is adequate.

e. The welding itself is observed by an experienced inspector, preferably one who has previously engaged in welding.

NOTE: In many cases, penetration may be observed on the back of a weld, such as a butt or corner, welded from one side. If lack of penetration or lack of fusion extends to the surface it may be observed visually or by penetrant examination.

4.5.4 Grain size. Grain size shall be determined in accordance with ASTM E112.

SCN 6 Page 11 of 19

6.4 Safety. Suitable blowers, exhausters, personal protection equipment, guards, and other approved safety devices and equipment shall be provided where needed to protect personnel against fumes, electrical shock, potential eye and burn injuries, and other hazards that may arise working or inspecting to this specification.

6.5 Preparation. This specification was prepared by the Martin Marietta Corporation, Orlando, Florida 32855, and furnished to the government under contract N000-24-77-C-5104.

6.6 Approved source(s) of supply.

In the absence of a qualified product under QPL-25765 for MIL-120S-1 an approved source of supply is:

The Esab Group, Inc./ L-TEC Welding and Cutting Systems 3325 Middle Road P.O. Box 710 Ashtabula, OH 44004-0710 Attn: Mr. Richard J. DiDonato

The listing of this source of supply does not release the contractor from compliance with the specification requirements.

CUSTODIAN: Navy (NAVSEA)

PREPARING ACTIVITY: Department of Navy Naval Sea System Command Washington, D.C. 20352

SCN 6 Page 12 of 19

Procedure 4

Combinations HY 80 to HY 80 to 100 (A514) Heat Input To 1/2 inch, inclusive 45 Kj/in. Maximum

Over 1/2 inch 55 Kj/in. Maximum

Preheat and Interpass Temperature

To 1/2 inch, inclusive 70 to 300 °° F

1/2 to 1 1/8 inch, inclusive 1507 to 300 °° F over 1 1/8 inch 2007 to 300 °° F

Filler Metals

SMAW MIL-9018-M, MIL-10018-M OR MIL-11018-M, MIL-E-22200/1;

E9018-M, E10018-M OR E11018-M, AWS A5.5

GMAW MIL-100S-1 OR MIL-120S-1, MIL-E-23765/2;

B88, MIL-E-19822

FCAW MIL-101TM, MIL-E-24403/2

GTAW MIL-100S-1 OR MIL-120S-1, MIL-E-23765/2;

B88, MIL-E-19822

SAW MIL-100S-1, MIL-E-23765/2 and

MIL-100S-1F, MIL-E-23765/2

LBW MIL-100S-1, MIL-E-23765/2;

B88, MIL-E-19822

Notes:

(1) See Section 3.8.3 for calculation for heat input.

(2) Based on thinner member being welded.

(3) Nominal thickness.

(4) See Table V for material specifications.

(5) Repair welding per 3.12 and casting repair per 3.14.

(6) Maximum stress relief temperature shall not exceed 1050°° F. Total accumulative time at temperature above 500°° F shall not exceed fifteen hours.

The rate at which the temperature is raised shall not exceed 400°° F per hour.

(7) For HSLA-80 to HLSA-80 material combination, minimum preheat is 70°° F.

(8) Weld filler metal for LBW may be omitted at the contractor’s option provided the final weld joint (including any requirements for weld quality, fillet welds, melt-thru conditions, reinforcements, and other weld size-parameters) meets all the requirements without compromising base material requirements (including physical properties and thickness).

SCN 6 Page 13 of 19

Procedure 5

Combinations HY 80 to 80 (EX-TEN 80) to 50 (CORTEN) to 36 (A36)

Heat Input

Up to 1/2 inch, inclusive 70 to 300 °° F

1/2 to 1 1/8 inch, inclusive 125 5 to 300 °° F over 1 1/8 inch 200 5 to 300 °° F

Filler Metals

SMAW MIL-9018-M, MIL-E-22200/1;

E9018-M, AWS A5.5

GMAW MIL-100S-1, MIL-E-23765/2;

B88, MIL-E-19822

SAW MIL-100S-1, MIL-E-23765/2 and

MIL-100S-1F, MIL-E-23765/2

LBW MIL-100S-1, MIL-E-23765/2;

B88, MIL-E-19822

Notes:

(1) See Section 3.8.3 for calculation for heat input.

(2) Based on thinner member being welded.

(3) Nominal thickness.

(4) See Table V for material specifications.

(5) For HSLA-80 to HLSA-80 material combination, minimum preheat is 70°° F.

(6) Weld filler metal for LBW may be omitted at the contractor’s option provided the final weld joint (including any requirements for weld quality, fillet welds, melt-thru conditions, reinforcements, and other weld size-parameters) meets all the requirements without compromising base material requirements (including physical

SCN 6 Page 14 of 19

Procedure 6

Combinations Filler Metals Process

MIL-11018-M, MIL-E-22200/1;

E11018-M, AWS A5.5

SMAW

MIL-120S-1, MIL-E-23765/2 GMAW

GTAW

MIL-100TM, MIL-24403/2 FCAW

MIL-120S-1, MIL-E-23765/2

and

MIL-120S-1F, MIL-E-23765/2

SAW

100 (A514) to 100 (A514)

100 (A514) to 80 (EX-TEN-80)

100 (A514) to 50 (Corten)

100 (A514) to 36 (A36)

MIL-120S-1, MIL-E-23765/2 LBW

MIL-9018-M, MIL-E-22200/1;

E9018-M, AWS A5.5

SMAW

MIL-100S-1, MIL-E-23765/2 GMAW

GTAW

MIL-101TM, MIL-24403/2 FCAW

MIL-100S-1, MIL-E-23765/2

and

MIL-100S-1F, MIL-E-23765/2

SAW

100 (A514) to 80 (EX-TEN-80)

100 (A514) to 50 (Corten)

100 (A514) to 36 (A36)

MIL-100S-1, MIL-E-23765/2 LBW

MIL-7018-M, MIL-E-22200/1;

E7015, E7016, E7018, AWS A5.5

SMAW

MIL-70S-2 or 6, MIL-E-23765/1;

E70S-2 or 6, AWS A5.18

GMAW

GTAW

MIL-70T-1 or MIL-71T-1, MIL-E-24403/1; E70T-1 or

71T-1, AWS A5.20

FCAW

MIL-70S-1, MIL-E-23765/1

and MIL-F1 or MIL-F3, MIL-F-18251 or equivalent commercial flux

SAW

100 (A514) to 50 (Corten)

100 (A514) to 36 (A36)

MIL-70S-2 or 6, MIL-E-23765/1;

E70S-2 or 6, AWS A5.18

LBW

SCN 6 Page 15 of 19

Procedure 6 (continued)

MAXIMUM HEAT INPUT PERMITTED FOR BUTT WELDS (KILOJOULES/INCH)

(FILLET WELDS: MULTIPLY BY 1.2)

PREHEAT AND INTERPASS TEMPERATURE (°F) PLATE

THICKNESS

(INCHES)

70° 150° 200° 300° 400°

3/16 17.5 15.3 14.0 11.5 9.0

1/4 23.7 20.9 19.2 15.8 12.3

3/8 35.0 30.7 28.0 23.5 18.5

1/2 47.4 41.9 35.5 31.9 25.9

5/8 64.5 57.4 53.0 42.5 33.5

5/8 88.6 77.4 69.9 55.7 41.9

1.0 ANY 120.0 110.0 86.0 65.6

1.25 ANY ANY 154.0 120.0 94.0

1.5 ANY ANY ANY 150.0 120.0

2.0 ANY ANY ANY ANY ANY

PREHEAT AND INTERPASS TEMPERATURES

MATERIAL THICKNESS TEMPERATURE (°F)

Up to 1 inch, inclusive 60 to 350°

1 to 2 inches, inclusive 150 to 350°

Over 2 inches 200 to 400°

Notes:

(1) See Section 3.8.3 for calculation for heat input.

(2) Based on thinner member being welded.

(3) Nominal thickness

(4) See Table V for material specification.

(5) Maximum stress relief temperature shall not exceed 1100°F. Total accumulative time at temperatures above 500°F shall not exceed fifteen hours. The rate at which the temperature is raised shall not exceed 400°F per hour.

(6) Weld filler metal for LBW may be omitted at the contractor’s option provided the final weld joint (including any requirements for weld quality, fillet welds, melt-thru conditions, reinforcements, and other weld size-parameters) meets all the requirements without compromising base material requirements (including physical properties and thickness).

SCN 6 Page 16 of 19

Procedure 7

Combinations 80 (EX-TEN-80) to 80 (EX-TEN-80) to 50 (Corten) to 36 (A36) Heat Input

Up to 3/8 inch, inclusive 60 to 200 °° F

3/8 to 1/2 inch, inclusive 100 to 250 °° F

1/2 to 3/4 inch, inclusive 200 to 300 °° F

Filler Metals

SMAW MIL-9018-M, MIL-E-22200/1;

E9018-M, AWS A5.5

GMAW MIL-100S-1, MIL-E-23765/2;

B88, MIL-E-19822

SAW MIL-100S-1, MIL-E-23765/2 and

MIL-100S-1F, MIL-E-23765/2

LBW MIL-100S-1, MIL-E-23765/2;

B88, MIL-E-19822

Notes:

(1) See Section 3.8.3 for calculation for heat input.

(2) Based on thinner member being welded.

(3) Nominal thickness.

(4) See Table V for material specifications.

(5) Weld filler metal for LBW may be omitted at the contractor’s option provided the final weld joint (including any requirements for weld quality, fillet welds, melt-thru conditions, reinforcements, and other weld size-parameters) meets all the requirements without compromising base material requirements (including physical

SCN 6 Page 17 of 19

Procedure 8

Combinations 50 (Corten) to 50 (Corten) to 36 (A36) Heat Input

No Requirement

Up to 1 inch, inclusive 60 to 200 °° F

1 to 2 inches, inclusive 100 to 250 °° F

Over 2 inches, inclusive 200 to 350 °° F

Filler Metals

SMAW MIL-7018-M, MIL-E-22200/1;

E7015, E7016, OR E7018, AWS A5.5

GMAW MIL-70S-2 or 6, MIL-E-23765/1;

ER70S-2 or 6, AWS A5.18

GTAW MIL-70S-2 or 6, MIL-E-23765/1;

ER70S-2 or 6, AWS A5.18;

ER80S-D2, AWS A5.28

FCAW MIL-70T-1 OR MIL-71T-1, MIL-E-24403/1;

E70T-1 OR E71T-1, AWS A5.20

SAW MIL-70S-1, MIL-E-23765/1 and

MIL-F1 OR MIL-F3, MIL-F-18251

or equivalent commercial flux

LBW MIL-70S-2 or 6, MIL-E-23765/1;

ER70S-2 or 6, AWS A5.18

Notes:

(1) Nominal thickness.

(2) See Table V for material specifications.

(3) Maximum stress relief temperature shall not exceed 1100 °° F. Total accumulative time at temperatures above 500 °° F shall not exceed fifteen hours. The rate at which the temperature is raised shall not exceed 400 °° F per hour.

(4) Weld filler metal for LBW may be omitted at the contractor’s option provided the final weld joint (including any requirements for weld quality, fillet welds, melt-thru conditions, reinforcements, and other weld size-parameters) meets all the requirements without compromising base material requirements (including physical

SCN 6 Page 18 of 19

Procedure 9

Combinations 36 (A36) to 36 (A36)

Heat Input

No Requirement

Preheat and Interpass Temperature

Not critical (recommended up to 400 degrees F for heavy sections or restrained welds).

Filler Metals

SMAW MIL-7018-M, MIL-E-22200/1;

TYPE 6010, 6011 or 6027, MIL-E-22200/1;

E7015, E7016, or E7018, AWS A5.5;

E6010, E6011 or E6027, AWS A5.1

GMAW MIL-70S-2 or 6, MIL-E-23765/1;

ER70S-2 or 6, AWS A5.18

GTAW MIL-70S-2 or 6, MIL-E-23765/1;

ER70S-2 or 6, AWS A5.18;

ER80S-D2, AWS A5.28

FCAW MIL-70T-1 OR MIL-71T-1, MIL-E-24403/1;

E70T-1 OR E71T-1, AWS A5.20

SAW MIL-70S-1, MIL-E-23765/1 and

MIL-F1 OR MIL-F3, MIL-F-18251

or equivalent commercial flux

LBW MIL-70S-2 or 6, MIL-E-23765/1;

ER70S-2 or 6, AWS A5.18

Notes:

(1) Nominal thickness.

(2) See Table V for material specifications.

(3) Maximum stress relief temperature shall not exceed 1175 °° F. Total accumulative time at temperatures above 500 °° F shall not exceed fifteen hours. The rate at which the temperature is raised shall not exceed 400 °° F per hour.

(4) Weld filler metal for LBW may be omitted at the contractor’s option provided the final weld joint (including any requirements for weld quality, fillet welds, melt-thru conditions, reinforcements, and other weld size-parameters) meets all the requirements without compromising base material requirements (including physical

SCN 6 Page 19 of 19

ISSUED: REVISED: JOINT WELDING PROCEDURE NUMBER:

FUSION WELDING TO

DRAWING NUMBER: TITLE:

MATERIAL (1) THICKNESS (1)

MATERIAL (2) THICKNESS (2)

MATERIAL (3) THICKNESS (3)

JOINT TYPE:

PREPARATION:

CLEANING:

SKETCH AND NOTES:

Place a sketch of the joint to be welded, including the base material thickness (1), (2) and (3) in this area.

Include the weld bead sizes and, if applicable, the sequence of the welding.

WELD PROCESS

PASS NUMBER

DIAMETER

TYPE

ELECTRODE

ANGLE/LAND

DIAMETER ELECTRODE

(FILLER)

TYPE

GAS FLOW

GAS MIXTURE

VOLTS, MAXIMUM 1

AMPERES, MAXIMUM 1

TRAVEL SPEED, INCHES PER

MINUTE MINIMUM

APPROVED (date)

WIRE FEED

MAXIMUM

ORIGINATOR

PREHEAT (°F)

MINIMUM

MAXIMUM

MANUFACTURING

INTERPASS (°F)

MINIMUM

CALCULATED HEAT INPUT

MAXIMUM,

KILOJOULES /

INCH (kJ / in)

PERMITTED

QUALITY

1. When calculating, measuring or auditing heat input, it is acceptable to substitute watts, where watts = volts * amperes, in lieu of individual voltage and amperage requirements.

FIGURE 1. SUGGESTED FORM FOR JOINT WELDING PROCEDURE