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LAMONS JACKETED ANDSOLID METAL GASKETS CROSS.SECTIONALVIEWS340METALLICGASKET MATERIALSNormally Stocked or Available.Carbon Steel304 Stainless Steel304L Stainless Steel316 Stainless Steel316L Stainless Steel321 Stainless Steel347 Stainless Steel410 Stainless Steel502/501 Stainless SteelAlloy 20AluminumBrassCopperCupro NickelHastelloy [email protected] [email protected] [email protected] [email protected] [email protected] [email protected] BronzeTitaniumOther Metals344346395399 370392377394315320'-'2

LAMONS METALLIC GASKET MATERIALS CARBON STEELCommercial quality sheet steel with an upper temperature limit of approximately 1O00 F.,particularly if conditions are oxidizing. Not suitable forhandling crude acids or aqueous solutions of salts in the neutral or acidrange. A high rate of failure may be expected in hot water service if thematerial is highly stressed. Concentrated acids and most alkalies havelittle or no action on iron and steel gaskets which are used regularly forsuch services. Brinell hardness is approximately 120.304 STAINLESS STEELAn 18-8 (Chromium 18-20%, Nickel 8-10%) Stainless with a maximumrecommended working temperature of 1400 F. At least 80% of applications for non-corrosive services can use Type 304 Stainless in thetemperature range of - 320 F. to 1000 F. Excellent corrosion resistanceto a wide variety of chemicals. Subject to stress corrosion cracking and tointergranular corrosion at temperatures between 800 F. to 1500 F. inpresence of certain media for prolonged periods of time. Brinell hardnessis approximately 160.304L STAINLESS STEELCarbon content maintained at a maximum of .03%. Recommendedmaximum working temperature of 1400 F. Same excellent corrosionresistance as Type 304. This low carbon content tends to reduce theprecipitation of carbides along grain boundaries. Less subject to intergranular corrosion than Type 304. Brinell hardness is about 140.316 STAINLESS STEELAn 18-12 Chromium-Nickel steel with approximately 2% of Molybdenumadded to the straight 18-8 alloy which increases its strength at elevatedtemperatures and results in somewhat improved corrosion resistance. Hasthe highest creep strength at elevated temperatures of any conventionalstainless type. Not suitable for extended service within the carbideprecipitation range of 800 to 1650 F. when corrosive conditions aresevere. Recommended maximum working temperature of 1400 F. Brinellhardness is approximately 160.316.L STAINLESS STEELContinuous maximum temperature range of 1400 to 1500 F. Carbon content held at a maximum of .03%. Subject to a lesser degree of stress corrosion cracking and also to intergranular corrosion than Type 304. Brinellhardness is about 140.321 STAINLESS STEELAn 18-10Chromium-Nickel steel with a Titanium addition. Type 321stainless has the same characteristics as Type 347. The recommendedmaximum working temperature is 1400 to 1500 F. and in some instances1600 F. Brinell hardness is about 150.347 STAINLESS STEELAn 18-10Chromium-Nickel steel with the addition of Columbium. Not assubject to intergranular corrosion as is Type 304. Is subject to stress corrosion. Recommended maximum working temperature of 1400 to 1500 F.and in some instances to 1700 F. Brinell hardness is approximately 160.410 STAINLESS STEELA 12% Chromium steel with a maximum temperature range of 1200 F. to1300 F. Used for applications requiring good resistanceto scaling atelevated temperatures. Is not recommended for use where severe corrosion is encountered but is still very useful for some chemical applications.May be used where dampness, alone or coupled with chemical pollution,causes steel to fail quickly. Brinell hardness is around 160.\I.'"'"3

.,-"502/5014-6 % Chromium and V2 Molybdenum alloyed for mild corrosive resistanceand elevated service. Maximum working temperature is 1200 F. and hasa Brinell hardness of around 130. If severe corrosion is anticipated, a better grade of stainless steel would probably be a better choice. Becomesextremely hard when welded, so stress relieving is recommended for welded gaskets to maintain uniform hardness.ALLOY 2045% Iron, 24% Nickel, 20% Chromium, and small amounts of Molybdenum and Copper. Maximum temperature range of 1400 to 1500 F.Developed specifically for applications requiring resistance to corrosion bysulphuric acid. Brinell hardness is about 160.ALUMINUMAlloy 1100 is commercially pure (99% minimum). Its excellent corrosionresistance and workability makes it ideal for double jacketed gaskets. TheBrinell hardness is approximately 35. For solid gaskets, stronger alloys like5052 and 3003 are used. Maximum continuous service temperature of 800 F.BRASSYellow brass 268 has 66% Copper and 34% Zinc. Offers excellent to goodcorrosion resistance in most environments, but is not suitable for suchmaterials as acetic acid, acetylene, ammonia, and salt. Maximum recommended temperature limit of 5000 F. Brinell hardness is about 58.COPPERNearly pure copper with trace amounts of silver added to increase itsworking temperature. Recommended maximum continuous workingtemperature of 500 F. Brinell hardness is about 80.CUPRO NICKELContains 69% Copper, 30% Nickel, and small amounts of Manganese andIron. Designed to handle high stresses, it finds its greatest application inareas where high temperatures and pressures combined with high velocityand destructive turbulence would rapidly deteriorate many less resistantalloys. Maximum recommended temperature limit of 500 F. Brinell hardness is about 70.HASTELLOY26-30% Molybdenum, 62% Nickel, and 4-6% Iron. Maximum temperaturerange of 2000 F. Resistant to hot, concentrated hydrochloric acid. Alsoresists the corrosive effects of wet hydrogen chlorine gas, sulphuric andphosphoric acids and reducing salt solutions. Useful for high temperaturestrength. Brinell hardness is approximately [email protected] [email protected]'-16-18% Molybdenum, 13-17.5% Chromium, 3.7-5.3% Tungsten, 4.5-7%Iron, and the balance is Nickel. Maximum temperature range of 2000 F.Very good in handling corrosives. High resistance to cold nitric acid ofvarying concentrations as well as boiling nitric acid up to 70% concentration. Good resistance to hydrochloric acid and sulphuric acid. Excellentresistance to stress corrosion cracking. Brinell hardness is about 210.INCONEL [email protected] maximum working temperature of 2000 F. and in some instances 21500 F. Is a nickel base alloy containing 77% Nickel, 15%Chromium and 7% Iron. Excellent high temperature strength. Frequentlyused to overcome the problem of stress corrosion. Has excellentmechanical properties at the cryogenic temperature range. Brinell hardnessis about 150.'-

INCOLOY [email protected]% Nickel, 46% Iron, 21 % Chromium. Resistant to elevatedtemperatures, oxidation, and carburization. Recommended maximumtemperature of 16000 F. Brinell hardness is about 150.MONEL [email protected] temperature range of 1500 F. Contains 67% Nickel and 30%Copper. Excellent resistance to most acids and alkalies, except strong oxidizing acids. Subject to stress corrosion cracking when exposed tofluorosilic acid, mercuric chloride and mercury, and should not be usedwith these media. Brinell hardness is about 120.NICKEL [email protected] maximum working temperature is 14000 F. and evenhigher under controlled conditions. Corrosion resistance makes it useful incaustic alkalies and where resistance in structural applications to corrosion is a prime consideration. .Does not have the all-around excellentresistance of Monel. Brinell hardness is about 110.PHOSPHOR BRONZE90-95% Copper, 5-10% Tin, and trace amounts of phosphorus. Maximumtemperature range of 5000 F. Excellent cold working capacity. Limited tolow temperature steam applications. Excellent corrosion resistance, butnot suitable for acetylene, ammonia, chromic acid, mercury, and potassiumcyanide. Brinell hardness is approximately 65.TITANIUMMaximum temperature range of 20000 F. Excellent corrosion resistanceeven at high temperatures. Known as the "best solution" to chloride ionattack. Resistant to nitric acid in a wide range of temperatures and concentrations. Most alkaline solutions have little if any effect upon it.Outstanding in oxidizing environments. Brinell hardness is about 215.OTHER METALSLamons has built a reputation on our ability to provide gaskets fromunusual materials. A few of these unlisted metals Lamons carries are:317L, INC 625, INC 825, HAST X, Tantalum and Zirconium. We welcomeinquiries on your special requirements.:l'-"NOTE: Maximum temperature ratings are based upon hot air constant temperatures. The presence ofcontaminating fluids and cyclic conditions may drastically affect the maximum temperature range.MATERIAL HARDNESSCONVERSION SCALE'-'"Brinell hardness figures are approximate guides only. Most materialsordered by Lamons are specified"dead soft"; however, differentthicknesses and different heats ofthe same material will vary inhardness.Rockwell"B"Brinell3000 Kg.Load9585 80 7521016313465605550403020 1010895. 89837561625

LAMONS METAL CLAD AND SOLID METALHEAT EXCHANGER GASKETS,)INFORMATION NEEDEDTO FILL AN ORDER1. Outside diameter2. Inside diameter3. Shape per Standard ShapesIndex4. Lamons style per catalog, or typeof construction5. Thickness6. Materials (metal or metal andfiller)7. Rib size8. Distance from centerline ofgasket to centerline of ribs9. RadiiQty. holes-cpcr.cr. [JSIZING METAL JACKETEDGASKETSThe following sizings and tolerances are not mandatory but are suggestedvalues based upon experience.GASKETS CONFINED ON 0.0.AND 1.0.Gasket 1.0. Groove 1.0. )1,8"Gasket 0.0. Groove 0.0. -)1,8"GASKETS CONFINED ON0.0. ONLYGasket 1.0. Bore minimum Ys"Gasket 0.0. Recess 0.0. -)1,8"GASKETS UNCONFINED ON0.0. AND 1.0.Gasket 1.0. Bore minimum Ys"Gasket 0.0. Up to a maximumof the bolt hole circle diameterminus one bolt hole diameter unlessgasket is to be full face. If gasket isto be full face, then the followingmust be specified:(a) Bolt hole circle diameter(b) Bolt hole diameter(c) Number of bolt holes(d) Desired gasket 0.0.STANDARDTOLERANCESv6

LAMONS HEAT EXCHANGER GASKETSSTANDARD SHAPE INDEX'-'0 8['\ 00 §@88 0e90 [email protected] ([email protected] §@@[email protected] §[email protected]@ 7§@ [email protected]@@ [email protected](djE§@ @ @J.5H.3J.8IK-1K.2K.3J-4K-47

LAMONS HEAT EXCHANGER GASKETS,METAL JACKETEDGASKETSLamons jacketed gaskets are normally supplied with a non-asbestos hightemperature filler. The standard filler is normally sufficient for applicationsup to 9000 F. Other soft fillers are available for higher temperatures orspecial applications including Grafoil DOUBLE-JACKETEDDouble-jacketed gaskets are probably the most commonly used style ofgasket in heat exchanger applications.They are available in virtually anymaterialthat is commercially availablein 26-gauge sheet.They are also extensively used in standard flangeswhere the service is not critical andat temperatures beyond which a softgasket such as compressed nonasbestos can be used. Since mostdouble-jacketed gaskets are custommade, there is virtually no limit to thesize, shape or configuration in whichthese gaskets can be made. This particular type of gasket is very versatileand can be used in a myriad ofapplications.The primary seal against leakage,using a double-jacketed gasket, isthe metal inner lap where the gasketis thickest before being compressedand densest when compressed. Thisparticular section flows, effecting theseal and as a consequence, theentire inner lap must be under compression. On most heat exchangerapplications the outer lap is alsounder"compression, providing a secondary seal. The intermediate partof a double-jacketed gasket does verylittle to effect the sealing capabilityof the gasket. In some cases nubbinsare provided on heat exchanger designs to provide an intermediateseal.The double-jacketed corrugatedgasket is an improvement on aplain jacketed gasket in that thecorrugations on the gasket willprovide an additional labyrinth seal.It also provides the advantage ofreducing the contact area of thegasket, enhancing its compressivecharacteristics. A double-jacketedcorrugated gasket still relies onthe primary seal on the inner lap.When using a gasket compoundor lubricant it is important toremember to use only a very lightcoating. Excessive amounts of lubricant or compound may cause totalgasket failure if the joint is exposedto high temperature and/or pressure.Standard thickness: '/e" nominalGASKETStyle300Always install double jacketed gasket with smoothside toward the nubbin.DOUBLE-JACKETEDCORRUGATED GASKETS Style 333Thisnubbinis normally'/64" high byW' wide. Experience has indicated,however,that there is little advantageto this particular design. The primaryseal is still dependent on the inner lapof the gasket doing the brutework andthe secondary seal, when applicable,would be provided by the outer lap.Standard thickness: %/' nominalFiller thickness (STD): '/,6"Metal: .015 to .020Filler thickness:,.1/,6"Metal: .015 to .020Pitch: '/e, 3/'6or '//NOTE: Double-jacketed gaskets are sometimesused with a very-light coating of gasket cementor lubricant which will assist in flowing the metalportion of the gasket into the tool marks on theflange seating surface.'-'8

LAMONS HEAT EXCHANGER GASKETS (CO J'D}"-'DOUBLE.JACKETEDCORRUGATED GASKETWITH A CORRUGATEDMETAL FILLER Style 340 \"' \\ SINGLE.JACKETEDGASKET Style350 SINGLE.JACKETEDOVERLAP Style382 DOUBLE.JACKETEDDOU BLE.SH ELLGASKET Style375"-"At temperatures in excess of 900 F.,where a standard filler is normally notrecommended, a double-jacketedcorrugated metal gasket with a corrugated metal filler is frequently used.This construction has all the advantages of the double-jacketed corrugated metal gasket and, in addition, .since the filler is normally the samematerial as the gasket itself,the uppertemperaturelimitwould be determinedby the metal being used. This typeof gasket, depending upo