Manitoba ENGINEERING STANDARD SPECIFICATION Operationsextportal.vale.com/eng/Thomp/standards/pdf/TH-SPEC-35020 Rev 5.pdf · ASTM A307 Specification for Carbon Steel Bolts and Studs,

ENGINEERING STANDARD SPECIFICATIONManitoba

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MECHANICALPIPINGSTEAM – 150 PSIG

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REVISIONS

Rev Description Rev’nby

AppSud

AppPC

AppThom

AppVB

AppLH

AppClyd

AppAct

Issue DateYYYY/MM/DD

1Specification updated andformat and number revised.Previous number 3503-03.02.611

BM2011/11/01

BM2011/12/01

Pending Pending Pending Pending Pending Pending 2012/04/26

2Approved for use inThompson – Piping systemApproval Requirements forMB updated

BM2011/11/01

BM2011/12/01

Pending GS2012/10/01

Pending Pending Pending Pending 2012/10/02

3 Specification ReferenceAdded

AD2012/11/23

BM2011/12/01

Pending GS2012/10/01

Pending Pending Pending Pending 2012/11/23

4Specification updated to

include Stainless Steel forCorrosive environments.

BN2015/02/19

BN2015/02/25

Pending Pending Pending Pending Pending Pending 2015/03/13

5 Spec approved for MBOperations N/A N/A N/A HM

30 SEP 16N/A N/A N/A N/A 30 SEP 16

Sud = Sudbury, Ontario, PC = Port Colborne, Thom = Thompson, Manitoba, VB = Voisey’s Bay, LH = Long Harbour, Act = Acton, England,Clyd = Clydach, Wales, N/A = Not Applicable


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1.0 PURPOSE

This specification describes the minimum requirements for saturated steam and steamcondensate systems at pressures above 15 PSIG and up to and including 150 PSIG. Steamsystems are to be constructed either of Carbon Steel or Stainless Steel for Corrosiveenvironments. Mixing of Carbon Steel and Stainless Steel materials is not permitted

2.0 APPLICATION

Engineering design and specifications only approved for use with Vale Canada Limited,Thompson Operations or its successor or assignee. Any use a third party makes of thisdocument or drawing, or any reliance on or decisions to be made based on it, beyond its usefor Vale Canada Limited purposes are the responsibility of such third parties. Vale CanadaLimited accepts no responsibility for damages, if any, suffered by any third party as a resultof decisions made or actions based on this document or drawing beyond those specifiedherein.

This specification, applies at any Vale locations indicated with approval on the cover page,with the following exceptions:

2.1 EXCEPTIONS

None.

3.0 REFERENCE DOCUMENTATION

The following documents were used in the development of this document or haveinstructions and procedures applicable to it. They shall be used in their most recent revision.

TH-SPEC-35001 Identification and ClassificationTH-SPEC-35002 Piping – General RequirementsTH-SPEC-35003 Welding Process RequirementsTH-SPEC-35048 Requirements for Pneumatic Testing of Piping SystemsTH-SPEC-83003 Pressure Piping and Vessels – Quality RequirementsTH-PROC-83006 Hydrostatic TestingCSA B51 Boiler, Pressure Vessel and Pressure Piping CodeCSA Z180.1 Compressed Breathing Air and Systems

ASTM A53Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated,Welded and Seamless

ASTM A105 Standard Specification for Carbon Steel Forgings for Piping ApplicationsASTM A106 Standard Specification for Seamless Carbon Steel Pipe for High Temperature


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ServiceASTM A139 Standard Specification for Arc Welded Steel Pipe

ASTM A179Standard Specification for Seamless Cold-Drawn Low-Carbon Steel Heat-Exchanger and Condenser Tubes

ASTM A182Standard Specification for Forged or Rolled Alloy and Stainless Steel PipeFlanges, Forged Fittings and Valves and Parts for High Temperature Service

ASTM A193Standard Specification for Alloy Steel and Stainless Steel Bolting for HighTemperature Service or High Pressure Service

ASTM A194Standard Specification for Carbon Steel and Alloy Steel Nuts for Bolts for HighPressure or High Temperature Service or Both

ASTM A234Standard Specification for Piping Fittings of Wrought Carbon Steel and AlloySteel for Moderate and High Temperature Service

ASTM A307 Specification for Carbon Steel Bolts and Studs, 60,000 PSI Tensile Strength

ASTM A312Standard Specification for Seamless, Welded and Heavily Cold WorkedAustenitic Stainless Steel Pipes

ASTM A351 Standard Specification for Castings, Austenitic, for Pressure Containing PartsASTM A403 Standard Specification for Wrought Austenitic Stainless Piping and FittingsASTM A536 Standard Specification for Ductile Iron CastingsASTM A563 Specification for Carbon and Alloy Steel NutsASTM B61 Standard Specification for Steam or Valve Bronze CastingsASTM B62 Standard Specification for Composition Bronze or Ounce Metal CastingsASTM D2000 Standard Classification System for Rubber Products in Automotive ApplicationASTM F37 Standard Test Methods for Sealability of Gasket MaterialsASTM F681 Standard Practice for use of Branch ConnectionsASME B1.1 Unified Inch Screw ThreadsASME B1.20.1 Pipe Threads, General Purpose (Inch)ASME B16.1 Gray Iron Pipe Flanges and Flange FittingsASME B16.3 Malleable Iron Threaded FittingsASME B16.5 Pipe Flanges and Flanged FittingsASME B16.9 Factory-Made Wrought Buttwelding FittingsASME B16.11 Forged Fittings Socket Welded and ThreadedASME B16.21 Nonmetallic Flat Gaskets for Pipe FlangesASME B16.25 Butt Welding EndsASME B16.34 Valves – Flanged, Threaded and Welding EndsASME B16.39 Malleable Iron Threaded Pipe UnionsASME B16.47 Large Diameter Steel Flanges

ASME B18.2.1Square, Hex, Heavy Hex, and Askew Head Bolts and Hex, Heavy Hex, HexFlange, Lobed Head, and Lag Screws (Inch Series)

ASME B18.2.2Nuts for General Applications: Machine Screw Nuts, Hex, Square, Hex Flange,and Coupling Nuts (Inch Series)

ASME B31.1 Power PipingASME B36.10 Welded and Seamless Wrought Steel Pipe


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MSS SP-44 Steel Pipeline FlangesMSS SP-67 Butterfly ValvesMSS SP-83 Class 3000 Steel Pipe Unions, Socket Welding and ThreadedMSS SP-97 Integrally Reinforced Forged Branch Outlet Fitting

4.0 PIPING AND FITTINGS

DesignConditions

150 PSIG @ 33° F to 366°FLowest rated component in system)

OperatingConditions

150 PSIG @ 33° F to 366°F

Design FabricationInstallation

In accordance with this specification and

TH-SPEC-35002TH-SPEC-35003TH-SPEC-83003

Piping – General RequirementsWelding Process RequirementsPressure Piping and Vessels – QualityRequirements

CSA B51 Boiler, Pressure Vessel and Pressure Piping CodeASME B31.1 Power Piping

Approvals ONTARIO:Steam piping systems subject to the approval of TSSA, Boilersand Pressure Vessels Safety Division.

MANITOBA:Piping systems are subject to the approval of the Manitoba Officeof Fire Commissioner, Inspection and Technical ServicesSection, Steam and Pressure Plants Act.

NEWFOUNDLAND:Piping systems are subject to the approval of the Newfoundland& Labrador, Department of Government Services, Public SafetyAct, Boiler, Pressure Vessel and Compressed Gas Regulations.


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Pipe 1 1/2" & Below:

Carbons Steel: Schedule 80 per ASME B36.10, carbon steelASTM A53 Gr. B, ERW, T & C ends.

Stainless Steel: Schedule 80S, ASTM A312 Gr. TP316L ERW orSeamless, threaded ends to ASME B1.20.1.

2" through 12":

Carbon Steel: Schedule 40 per ASME B36.10, carbon steelASTM A53 Gr. B, ERW, beveled ends

Stainless Steel: Schedule 40S, ASTM A312 Gr. TP316L ERW orSeamless, beveled ends

14" through 16":

Carbon Steel: 0.375" thick wall per ASME B36.10, carbon steelASTM A53 Gr. B, ERW, beveled ends.

Stainless Steel: 0.375” thick wall, ASTM A312 Gr. TP316L ERW,beveled ends

20" through 30":

Carbon Steel: 0.375" thick wall per ASME B36.10, carbon steelASTM A139 Gr. B, DSAW, beveled ends.

Stainless Steel: 0.375” thick wall, ASTM A312 Gr. TP316L,ERW, beveled ends.

Fittings 1 1/2" & Below:

Carbon Steel: Class 300 malleable iron per ASME B16.3, ASTMA197, screwed and banded

Stainless Steel: Class 3000 forged, ASTM A182 Gr. F316,threaded to ASME B1.20.1


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2" through 12":

Carbon Steel: Schedule 40, per ASTM A234 Grade WPB, buttweld prep per ASME B16.9.

Stainless Steel: Schedule 40S, ASTM A403 Gr. WP316Lseamless or welded fitting, butt weld to ASME B16.9

14" & Above:

Carbon Steel: 0.375" thick wall, per ASTM A234 WPB, butt weldprep per ASME B16.9.

Stainless Steel: 0.375” thick wall per ASTM A403 Gr. WP316LSeamless or welded fitting, butt welded to ASME B16.9

Butt weld elbows - Long radius R = 1 1/2 x dia. unless otherwisenoted.

Note: In areas where leaks cannot be tolerated, lines 1 1/2" andbelow will be socket welded construction. See BranchConnections

BranchConnections

See Table 1Attach to run pipe by full penetration welds.

Carbon Steel:Threaded and socket weld half couplings, Class 3000 per ASMEB16.11, forged carbon steel ASTM A105

Thredolet and sockolet, Class 3000 per ASME B16.11 and MSSSP-97, forged carbon steel ASTM A105

Weldolet, Extra strong per ASME B16.11 and MSS SP-97, forgedcarbon steel ASTM A105

Stainless Steel: Use class 3000. forged, ASTM A182, Gr. F316Lthreaded or socket weld half couplings. Use Standard & Class3000 forged stainless steel ASTM A182, Gr. F316L weldoletsand threadolets.


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Flanges 1 1/2" & Below:

Carbon Steel: Class 150 raised face, threaded, forged, ASTMA105 to ASME B16.5.

Stainless Steel: Class 150 raised face, threaded, forged, ASTMA182 Gr. F316 to ASME B16.5.

Use flanges 1 ½” and below only for connections to flangedequipment

2" through 24":

Carbon Steel: Class 150 slip-on or welding neck type, raisedface, forged steel ASTM A105 to ASME B16.5.

Stainless Steel: Class 150 slip-on or welding neck type, raisedface, forged stainless steel, ASTM A182 Gr. F316L to ASMEB16.5

Bore of welding neck flanges to suit pipe ID.

26" through 36":

Carbon Steel: Class 150 welding neck type, raised face, forgedcarbon steel ASTM A105 / MSS SP-44.

Stainless Steel: Class 150 slip-on or welding neck type, raisedface, forged stainless steel, ASTM A182 Gr. F316L to ASMEB16.47, MSS SP-44.

Bore of welding neck flanges to suit pipe ID.

Note: Flat faced flanges required at cast iron valves and flanges,for all sizes.

Pipe Joints Threaded JointsDo not use wet sealants. Use teflon tape.


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Flanged JointsGaskets: 1/16" thick ring type - inside bolts, non-asbestos,carbon fibre, nitrile bonding. Dimensions to ASME B16.21.Gasket dope is not permitted. Manufacturer's gasket materialrecommendation subject to Vale approval.

Flange Bolting

Carbon Steel:Alloy steel stud bolts to ASTM A193 Gr. B7, threaded full length,with semi-finished heavy hex nuts to ASTM A194 Gr. 7 withClass 2A fit on bolts and 2B fit on nuts. Dimensions to ASMEB1.1, and B18.2.2.

Stainless Steel:Stainless Steel bolts to ASTM A193 Gr. B8M UNC threads withheavy series hex nuts to ASTM A194 Gr. 8MA, with class 2A fiton bolts and class 2B fit on nuts. Dimensions to ASMEB1.1,B18.2.1 and B18.2.2.

Welded JointsCarbon Steel:Essential variables to be in accordance with Vale TH-SPEC–35003, 2” to 6” WP38” to 30” WP1

Stainless Steel:Essential variables to be in accordance with Vale TH-SPEC-35003,2” to 6” WP68” to 30” WP4.

Unions 1 1/2" & Below – Class 300 malleable iron per ASME B16.39,ASTM A197, ANSI/ASME B16.39, brass to brass seats, groundjoint, threaded ends to ASME B1.20.1

Stainless Steel: Do Not Use – Use flanged Connections


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Gate Valves* 1 1/2" & Below:

Carbon Steel: Class 150, bronze body ASTM B62, solid wedgedisc, union bonnet, rising stem, inside screw, hand wheeloperated, threaded ends to ASME B1.20.1. Valves to belockable.

Stainless Steel: Class 600, Cast stainless steel body to ASTAMA351 Gr. CF8M. All internals to be Stainless Steel. Threadedends to ASME B1.20.1 Valves to be lockable.

Alternate where socket welded construction is required.

Carbon Steel: Class 600, forged steel body ASTM A105, wedgedisc, 13% chrome trim, outside screw and yoke, rising stem,bolted bonnet, socket weld ends. Valves to be lockable.

Stainless Steel: Class 600, forged Stainless Steel body to A182Gr. F316, All internals to be Stainless Steel, bolted bonnet,socket weld ends. Valves to be lockable.

2" & Above:

Carbon Steel: Class 150, cast steel body ASTM A216 Gr. WCB,outside screw and yoke, rising stem, flexible wedge disc, flangedends, raised face per ASME B16.5. For welded construction, buttweld ends to ASME B16.25. Valves to be lockable.

Stainless Steel: Class 150, Cast stainless steel body to ASTMA351 Gr. CF8M, outside screw and yoke, rising stem, flexiblewedge disc, flanged ends, raised face per ASME B16.5 Forwelded construction, butt wed ends to ASME B16.25. Valves tobe lockable.


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Globe Valves* 1 1/2" & Below:

Carbons steel: Class 150, bronze body ASTM B62 hard disc,union bonnet, inside screw, threaded ends to ASME B1.20.1.Valves to be lockable.

Stainless Steel: Class 600. Cast stainless steel body to ASTMA351 Gr. CF8M, OS&Y. Threaded to ASME B.1.20.1. Valves tobe lockable.


Carbon Steel: Class 600, forged steel body ASTM A105, 13%chrome trim, outside screw and yoke, socket weld ends. Valvesto be lockable.

Stainless Steel: Class 600, forged Stainless Steel body to A182,Gr. F316, All internals to be Stainless Steel, socket weld ends.Valves to be lockable

2" & Above:

Carbons Steel: Class 150, cast steel body ASTM A216 Gr.WCB renewable seats and disc, outside screw and yoke, flangedends, raised face to ASME B16.5. For welded construction, buttweld ends to ASME B16.25. Valves to be lockable.

Stainless Steel: Class 150, cast Stainless Steel body to ASTMA351 CF8M, renewable seats and disc, outside screw and yoke,flanged ends, raised face to ASME B16.5. For weldedconstruction, butt weld ends to ASME B16.25. Valves to belockable


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Check Valves 1 1/2" & Below:

Carbon Steel: Class 200, bronze body ASTM B61, swing check,bronze disc regrind seat, 200 PSIG saturated steam rating,threaded ends to ASME B1.20.1.

Stainless Steel: Class 600 Cast stainless steel body to ASTMA351 Gr. CF8M, All Stainless Steel internals, threaded ends toASME B1.20.1.


Carbons Steel: Class 600, forged steel body ASTM A105, 13%chrome trim, lift check, bolted cap, socket weld ends.

Stainless Steel: Class 600, forged stainless steel body to ASTMA182 Gr. F316, All Stainless Steel internals, lift check, boltedcap, socket weld ends.

2" & Above:

Carbon Steel: Class 150, cast steel body ASTM A216 Gr. WCB,13% chrome trim, swing check, renewable seats and disc,flanged ends, raised face to ASME B16.5. For weldedconstruction butt weld ends to ASME B16.25.

Stainless Steel: Class 150, cast stainless steel body to ASTMA351 CF8M, All Stainless Steel internals, swing check,renewable seats and disc, flanged ends, and raised face toASME B16.5. For welded construction butt weld ends to ASMEB16.25

Safety Relief Valves Selection by the Engineer.

Pressure ReducingValves

Selection by the Engineer.


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Traps Selection of traps shall be based on required capacity, locationand rating.

Drip Leg Service - Thermodynamic type steam trap, Class 600complete with integral strainer and blow-off connection, screwedends.

Modulation Service - Float and thermostatic steam trap, Class150 complete with air vent, in-line screwed ends.

Strainers For areas where water hammer is a concern, substitute b1-metallic traps in float and thermostatic style.

1 1/2" & Below:

Class 250, iron body, Y-Type sediment separator, 40 meshmonel screen, screwed cap complete with blow-off connectionand plug, threaded ends to ASME B1.20.1.

Stainless Steel: Class 600 stainless steel body to ASTM A351Gr. CF8M, All stainless steel internals, Y-Type strainer, screwedcap complete with blow-off connection and plug, 1/32” perforatedStainless steel screen, Threaded ends to ASME B1.20.1.

2" & Above:

Carbon Steel: Class 150, cast steel body, Y-Type sedimentseparator, 40 mesh monel screen, bolted cover complete withblow-off connection and plug, flanged ends to ASME B16.5.

Stainless Steel: Class 150, stainless steel body to ASTM A351Gr. CF8M, All stainless steel internals Y-Type strainer, boltedcover complete with blow-off connection and plug, 1/32”perforated stainless steel screen, flanged ends to ANSI B16.5


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InstrumentationIsolating Valves

Carbon Steel:1/2" Gate Valves – Class 600, forged steel body ASTM A105,13% chrome trim, outside screw and yoke, threaded ends toASME B1.20.1. Valves to be lockable.

Stainless Steel:1/2" Gate Valves- 600 lb. Forged stainless steel body to ASTMA182, Gr. 316L, All stainless steel trim, outside screw and yoke,threaded ends to ASMA B1.20.1. Valves to be lockable.

*Note: Gate Valves, Globe Valves, Check Valves, andInstrumentation Isolating Valves to have 150 PSIG saturatedsteam minimum rating except where noted otherwise and a stemblow out retainer where applicable.

5.0 TESTING

Testing must meet the requirements of ASME B31.1and TH-PROC-83006 (hydrostatictesting) or TH-SPEC-35048 (pneumatic testing - only at the discretion of the Engineer) andspecific instructions in the scope of work.

Test Pressure Duration Additional Requirements225 PSIG 10 minutes none

6.0 EXAMINATION AND INSPECTION

Examination and inspection must meet the requirements of ASME B31.1 and specificinstructions in the scope of work. Minimum 100% visual examination for pressure welds orwelds to pressure retaining components and a complete inspection.

7.0 PAINTING - PIPE SYSTEM CLASSIFICATION AND IDENTIFICATION

The piping system shall be painted (classification) and labeled (identification) in accordancewith TH-SPEC-35001. Do not paint insulated piping. Do not paint Stainless Steel.

8.0 CLEANING

Not all of the following cleaning procedures are required for any given project. Use the levelof cleanliness, type of cleaning procedure and the sequence as specified on the drawings.


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8.1 FLUSHING

Following completion of hydrostatic testing, drain the test fluid at a rate of flow sufficient toflush any debris or foreign materials from the system.

8.2 BLOWING OUT

Vent the steam system to atmosphere, in a safe location, by blowing steam at line pressurethrough the system and venting, either horizontally or vertically downwards, through full linesized vents, until it is visually evident that discharge of foreign particles has stopped.

8.3 WIRE BRUSHING

Prior to blowing out, clean the line by drawing through a wire brush, sized to the full diameterof the line, until no particles remain.

8.4 ACID CLEANING

Mix cleaning solutions on site or deliver premixed. Ensure acid cleaning is done by anapproved cleaning contractor.

Prior to blowing out, degrease and descale the system as follows:

8.4.1 Caustic Flush

Make up the caustic solution in the following proportions:

For every 1,000 gallons of water - 125 gallons of liquid caustic or 840 pounds of flakecaustic, and 400 pounds of Trisodium Phosphate.

When the auxiliary tank is filled with water, add the caustic in the proportions specified,making sure that all solids are dissolved. Trisodium Phosphate has limited solubility in coldwater, therefore, in cold weather or in systems with many small bore pipelines, it isadvantageous to reduce the amount of this chemical by half. This greatly reduces theamount of Trisodium Phosphate that precipitates and prevents "freeze-ups" in the lines.

Heat the caustic solution till a temperature of about 140 deg.F is obtained. Start circulation.

Maintaining the temperature of 140 deg.F, circulate for a minimum of 4 hours.

Check lines for proper circulation by checking the temperatures.


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Treat leaks with caution and do not attempt to correct any during circulation.

Check high points in the piping during the caustic flush to ensure the system remains full ofsolution.

8.4.2 Water Flush

Use water to flush the solution in the system back into the pickling tank for disposal.

Continue to flush the system with water allowing the discharge to collect in a holding tank.Flush for one half to one full hour or until discharge is neutral.

8.4.3 Acid Flush

Make up the acid solution in the following proportions:

For every 1,000 gallons of water - 100 gallons 66 Be Sulphuric acid, 5 gallons of inhibitorsuch as Houghton "ACITROL", and water soluble foam suppressant as required. Heat theacid solution with live steam till a temperature of 140 deg.F is obtained.

Circulate the hot acid solution through lines for a minimum of 4 hours and maintain solutiontemperature at 140 deg.F.

Check lines for proper circulation by checking the temperatures.

Treat leaks with caution and do not attempt to correct any during circulation.

Check high points in the piping during the acid flush to ensure that the system remains full ofsolution.

Immerse a heavily scaled or rusted piece of metal in the pickling tank and use this as ameasure of the descaling rate of the solution.

8.4.4 Water Flush

Use water to flush the solution in the system back into the pickling tank and then pump outfor disposal.

Continue to flush the system with water allowing the discharge to collect in a holding tank.Flush for one half to one full hour or until discharge is neutral. Test with litmus paper.


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Keep lines full of water to prevent air from contacting the cleaned surfaces until the system isblown out.

Note: Ensure cleaning takes place immediately prior to line being placed in service so thatno corrosion is allowed to take place during this interval.

8.5 DISPOSAL

Discuss with and obtain approval from the Vale Representative for the disposal of allcleaning fluids.

If solutions are disposed of in Vale sewer system or treatment system, the solutions must beneutralized prior to disposal.


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9.0 TABLE 1

BRANCH CONNECTIONSInches

30 124 2 120 6 2 116 6 6 2 114 6 6 6 2 1

B 12 6 6 6 7 2 1R 10 6 6 6 7 7 2 1A 8 6 6 6 7 7 7 2 1N 6 6 6 6 7 7 7 7 2 1C 4 6 6 6 7 7 5 5 5 2 1H 3 6 6 6 7 7 5 5 5 5 2 1

2.5 6 6 6 7 7 5 5 5 5 5 2 12 3 3 3 3 3 3 4 4 4 4 4 2 1

1.5 3 3 3 3 3 3 4 4 4 4 4 4 2 11 3 3 3 3 3 3 4 4 4 4 4 4 2 2 1

3/4 3 3 3 3 3 3 4 4 4 4 4 4 2 2 2 11/2 3 3 3 3 3 3 4 4 4 4 4 4 2 2 2 2 1

Inches 30 24 20 16 14 12 10 8 6 4 3 2.5 2 1.5 1 3/4 1/2

HEADER1 = Equal Tee2 = Reducing Tee3 = Half Coupling (Threaded or socket weld)4 = Threadolet, Sockolet, Weldolet5 = Stub in6 = Stub in requiring branch reinforcement7 = 45 deg. Stub in requiring reinforcement 90 deg. Stub in does not require reinforcement


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10.0 APPENDICES

Appendix A: Revision and Transition NotesAppendix B: Keywords


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Appendix A: Revision and Transition Notes

(Revisions are listed in reverse chronological order with most recent revision at the top.Revision notes describe: what was changed, why it was changed, and the plan to implementthe change, including whether changes are retroactive)

Revision 5Approved for Manitoba OperationsSection 3: Reference documentation added.Section 4: Referenced TH-SPEC-35003 and TH-SPEC-83003.

Revision 4Stainless Steel option added for Steam – 150 PSIG in corrosive environments.Some re-formatting in Section 4, 5,6 &7 – (no technical change)

Revision 3SPEC-83003 added to Reference document section.No technical changes.

Revision 2Approved for use in Thompson. Piping system approval requirements updated for Manitoba.

Revision 1Document format and number changed due to Vale Engineering Document Programchanges in 2011. Previous Standard number 3503-03.02.611 Rev 5. Specification updated.

Appendix B: Keywords

3503-03.02.611SPEC-35020

Documents

Manitoba ENGINEERING STANDARD SPECIFICATION Operationsextportal.vale.com/eng/Thomp/standards/pdf/TH-SPEC-35020 Rev 5.pdf · ASTM A307 Specification for Carbon Steel Bolts and Studs,