alloy 400 - Special Metals Corporation

1 MONEL alloy nickel-copper alloy 400 (UNS N04400 and ) is a solid-solution alloy thatcan be hardened only by cold working. It has highstrength and toughness over a wide temperature rangeand excellent resistance to many corrosiveenvironments. Composition is shown in Table 400 is widely used in many fields, especiallymarine and chemical processing. Typical applicationsare valves and pumps; pump and propeller shafts;marine fixtures and fasteners; electrical and electroniccomponents; springs; chemical processing equipment;gasoline and fresh water tanks; crude petroleum stills,process vessels and piping; boiler feedwater heaters andother heat exchangers; and deaerating 11- Limiting Chemical Composition, %,of MONEL alloy 400 Nickel (plus Cobalt).

2 - 22 -- Physical Constants of MONEL alloy 400aDensity, Range, F ..2370-2460 C ..1300-1350 Modulus of Elasticity, 103ksi Tension .. s Ratio .. Temperature, F ..70-120 C ..21-49 The physical constants and thermal properties ofMONEL alloy 400 are shown in Tables 2 and 3. Theeffect of temperature on modulus of elasticity in tensionis in Figure will be noted in Table 2 that the Curietemperature lies within the ambient range. It is affectedby variations in chemical composition. The valuesshown represent the range which can be expected fromnormal production; therefore, some heats will bemagnetic at room temperature and others not.

3 If there isa strong requirement for nonmagnetic characteristics,other MONEL alloys should be CCOONNSSTTAANNTTSS AANNDDTTHHEERRMMAALL PPRROOPPEERRTTIIEESSaThese values also apply to MONEL alloy R-405, the free-machiningversion of MONEL alloy Number SMC-053 Copyright Special Metals Corporation , 2005 (Feb 05)MONEL, INCONEL, and INCOFLUX are trademarks of the Special Metals Corporation group of data contained in this publication is for informational purposes only and may be revised at any time without prior notice. The data is believed to be accurateand reliable, but Special Metals makes no representation or warranty of any kind (express or implied) and assumes no liability with respect to the accuracy orcompleteness of the information contained herein.

4 Although the data is believed to be representative of the product, the actual characteristics or performance of theproduct may vary from what is shown in this publication. Nothing contained in this publication should be construed as guaranteeing the product for a particular useor aallllooyy 4400002 TTaabbllee 33- Thermal Properties of MONEL alloy 400 The nominal room-temperature tensile properties ofMONEL alloy 400 are shown in Table 4. Additional data onhardness of various tempers of sheet and strip are in Table 2 and 3 are based on typical data that showrelationships between properties of rods and forgings andsheet and high-temperature properties of hot-rolledannealed material are shown in Figure alloy 400 has excellent mechanical propertiesat subzero temperatures.

5 strength and hardness increasewith only slight impairment of ductility or impact alloy does not undergo a ductile-to-brittle transitioneven when cooled to the temperature of liquid is in marked contrast to many ferrous materials whichare brittle at low temperatures despite their increasedstrength. Table 6 shows mechanical properties of the alloy atlow Effect of temperature on modulus of elasticity in tensionof MONEL alloy 400 (determined by dynamic method).0 200 400 600 800 1000 1200 1400 1600 Temperature, F27181920212223242526 Modulus of Elasticity, 103ksiTTeemmppeerraattuurreeEElleeccttrr iiccaall RReessiissttiivviittyyaa,,ccSSppeecciiff iicc HHeeaattaaTThheerrmmaall CCoonndduuccttiivviittyyaaMMeeaann LLiinneeaarr EExxppaannssiioonnbb FF mmoohhmm--cciirrcc mmiill//ffttJJ//kkgg CCBB ttuu//llbb// FFWW//mm CCBB ttuu--iinn//hh//fftt22// FF mm//mm CCiinn//iinn// FF xx 1100--66 values also apply to MONEL alloy R-405, the free-machining version of MONEL alloy material.

6 Between 70 F (21 C) and temperature PPRROOPPEERRTTIIEESSTT eennssiillee PPrrooppeerrttiieess aanndd HHaarrddnneessssRod and BarAnnealed75-90517-62025-50172-34560-35 110-14960-80 Hot-Finished (except Hexagons over2 1/8 inches and Angles)80-110552-75840-100276-69060-3014 0-24175-100 Hot-Finished Hexagons over 2 1/8 inches and Angles75-100517-69030-55207-37950-30130- 18472-90 Cold-Drawn, Stress-Relieved84-120579-82755-100379-69 040-22160-22585-20 CPlateHot-Rolled, As-Rolled75-95517-65540-75276-51745-3012 5-21570-96 Hot-Rolled, Annealed70-85482-58628-50193-34550-35110 -14060-76 SheetAnnealed70-85482-58630-45207-31045- 35-65-80 Cold-Rolled, Hard100-120690-82790-110621-75815-2-93 , Cold-RolledAnnealed70-85482-58625-45172- 31055-35-68 Temper100-140690-96590-130621-89615-2-98 and Pipe, SeamlessCold-Drawn.

7 Annealed70-85482-58625-45172-31050-35-75 , Stress-Relieved85-120586-82755-100379-69 035-15-85-100aHeat-Exchanger, Annealed70-85482-58628-45193-31050-35-75 , Stress-Relieved85-105586-72455-90379-621 35-15-85-97aHot-Extruded-b-b-b-b-b--bNo. 1 Temper (Annealed)85 2 Temper (Half-Hard)85-105586-72455-80379-55230-1 0-75-97aNo. 3 Temper (Full-Hard)110-130758-89690-110621-75810 -3-95-27 CWire, Cold DrawncAnnealed70-95482-65530-55207-37945 -25--No. 1 Temper85-100586-69050-75345-51730-20--Qu arter-Hard95-120655-82765-95448-65525-15 --Half-Hard110-135758-93185-120586-82715 -8--Three-Quarter-Hard125-150862-1034100 -135690-9318-5--Full-Hard--Spring Temper145-1801000-1241125-170862-11725-2 --MMOONNEELL aallllooyy 440000 TTaabbllee 44- Nominal Room-Temperature tensile Properties of MONEL alloy 400aSome torsional properties of alloy 400 are shown in Table 55 - Hardness of Cold-Rolled MONEL alloy 400 Sheet and StripFFoorrmm aanndd CCoonnddiittiioonnRRoocckkwweellll BBkkssiiMMPP aakkssiiMMPPaaEElloonnggaattiioonn.

8 %%BBrriinneellll((33000000--kkgg))HHaarr ddnneessssYYiieelldd SSttrreennggtthh(( OOffffsseett))TTeennssiillee SSttrreennggtthhaThe ranges shown are composites for various product sizes and therefore are not suitable for specification purposes. Hardness values are suitable forspecification purposes providing tensile properties are not also on shown are for sizes from to diameter. Properties for other sizes may vary from SSttrreennggtthhCCoommpprreessssiivvee SSttrreennggtthhCompressive properties, determined in triplicate on singletypical melts, are shown in Table 8 along with thecorresponding tensile properties and hardness.

9 The modulusof elasticity in compression is the same as that in detailed information may be found BB HHaarrddnneessssTTeemmppeerrSShheeeettDe ep-Drawing and Spinning Quality76 for information only where tensile requirements aallllooyy 4400004 FFiigguurree 22. Approximate relationships between tensile properties andhardness of hot-rolled and cold-drawn MONEL alloy 400 rods 33. Approximate relationships between tensile properties andhardness of MONEL alloy 400 sheet and 66 - tensile Properties of MONEL alloy 400 at Low Temperatures 60 70 80 90 100 Rockwell BHardness120406080100200 Yield strength ( Offset) tensile strength , ksi802040600 Elongation Reduction of Area, %10 15 20 2560 70 80 90 100120406080100200 Yield strength ( Offset)

10 tensile strength , ksi2040600 Elongation, % tensile StrengthYield StrengthElongationTensile StrengthYield StrengthElongationReduction of AreaRockwell CRockwell BHardness10 15 20 25 Rockwell CTTeemmppeerrYYiieelldd SSttrreennggtthh (( OOffffsseett)),, kkssiiTTeennssiillee SSttrreennggtthh,,kkssiiTTeemmppeerraatt uurree,, FFRR eedduuccttiioonn ooff AArreeaa,, %%EElloonnggaattiioonn,,%% at -110 F for several hours prior to testing at room aallllooyy 4400005 FFiigguurree High-temperature properties of annealed MONEL alloy 77- torsional Properties of MONEL alloy 4000 200 400 600 800 1000 Temperature, F9030405060708001020 Stress, ksi Elongation, % tensile StrengthYield strength ( Offset)