Material Corrosion Resistance Guide

1 FIBERGLASS **COATINGS Aluminum Stainless 304 Stainless 316 Carbon steel Monel Neoprene Teflon Viton Interplastics 8441 Hetron FR992 Dow 510A Epoxy (250 F) Inorganic Zinc (150 F) Coal Tar Epoxy (300 F) PLASITE 7122L (HAR, TFE)Boric Acid (5%)FGGNFNG--210210GN-GBromine, Wet GasNNNNNN---*90NG-GFButyric Acid, to 50%FGFNFN--210160210N--GCalcium CarbonateNGFNFGG-180S180S180SG--GCalcium ChlorateFFFFFFG-210S210210G--FCalcium ChlorideNFNNFGGG210S210210GN-GCalcium HydroxideNGGNGGGG180S180S180 SGN-FCarbolic Acid-GFN-N-GN-NNFG(5)NCarbon Monoxide GasGGGFFNFG210210250G--GCarbon TetrachlorideFGGNGNGG100150150 GGGGC hlorine Gas (Dry)FFFFGNGG*210S*180S*220 SFN-FChlorine Gas (Moist)NNNNFNGF180S180S*220 SFN-NChlorine WaterNFFNNN--*180S*180*180 GNGFC hlorobenzeneFGGFGNGG NNNFF-FChromic Acid, to 5%NFNNNNFG150100150G(20)NNFC itric AcidFGFNFGGG*210*210*210 GNGFC opper AcetateN-GNNF-N-160-G--FCopper ChlorideNNNNNGGG*210*210*220GN-GCopper CyanideNGFNNGGG210210210G--FCopper NitrateNGFNNG--210210210F--FCopper SulphateNGFNNGGG210210210FN-GDetergentsF GGGFF-G210100150 GGGGE thyl ChlorideNGGNFNGGNNNGF-NEthylene ChlorideNGGNFNGFNNNGF-NFIBERGLASS **COATINGS Aluminum Stainless 304 Stainless 316 Carbon steel Monel Neoprene Teflon Viton Interplastics 8441 Hetron FR992 Ashland 510A Epoxy (250 F) Inorganic Zinc (150 F) Coal Tar Epoxy (300 F) Plasite 7122L (HAR, TFE)Acetic Acid, to 10% (Fumes Only)FFGNFGGF210210210 GNGFA cetone (Fumes Only)GGGGGF-NNN180GG-FAlcohol - EthylFGGFFG-F150N80GG-FAluminum AcetateN-G-FNGN---G--FAluminum HydroxideGGGNNGG-180-180GN-FAluminum SulphateNF-NNGGG-210210GN-GAmmonia (Dry - 1%)FGGFNG--100100100G-GGAmmonia (Moist - 1%)

2 FGGFNG--150100NG--FAmmonium ChlorideNFFNFGGG*210S*210*210 GNGGA mmonium Hydroxide to 5%NGGNNGFF180S180S180 SGNG(10)FAmmonium NitrateFGGNNFGG210210220 GNG(30)GAmmonium Perchlorate--G--------N--GAmmonium Persulfate (Saturated)NGGNNGNG180180180N--GAmmonium PhosphateGGGNNGGG210210210G--GAmmonium SulphateNGFNFGGF210210220F-G(10)GAmmoniu m SulphiteNGFNNG---100150G--GBarium ChlorideNGNNFGGG210210210GN-GBarium HydroxideNFGNFGGG150S150150GN-GBarium NitrateFGGGNG-----FN-GBarium SulphateNGFNFGGG210210210F--GBenzeneFGGF GNGGNNNGG-GBenzoic AcidFGGNFN-G210210210G--GHartzell fans and blowers have rings, frames, housings, and supports fabricated from low carbon steel . All steel parts are phosphatized or sandblasted and finished with an enamel standard axial flow propeller Material is a sand-cast aluminum equivalent to Federal Spec.

3 QQ-A-601, and chosen for its good strength , durability, and casting qualities. Other high strength alloys can be furnished at extra cost for special applications. Standard centrifugal wheels are fabricated from ASTM Standard A569 carbon standard coatings specifications are tied to ASTM standards used within industry. These coatings are considered to be good to excellent for indoor/outdoor structures in an industrial Materials and CoatingsFor installations where extreme corrosive fumes are encountered, Hartzell fiberglass fans give unsurpassed Resistance to the great majority of corrosive elements at a cost substantially below that of Corrosion resistant metals. These fan units feature special high grade fiberglass propellers, duct sections, drive housings, bearing covers and seals - plus efficient shaft seals and slingers to protect special vinylester resin used in the construction of Hartzell s regu-lar fiberglass duct fans, offers tremendous advantages over general purpose polyester and epoxy resins.

4 It has higher Corrosion Resistance and it retains its strength when wet to a much greater degree than other polyester a further refinement of the resin system, additives are made which give a flame spread rate of 25 or less without materially affecting the Corrosion Resistance . This feature is particularly desirable where both extreme Corrosion Resistance and high flame Resistance are strength is built into all Hartzell fiberglass fans by the use of heavy flanges, extra glass tape joints, and extra glass reinforcing. In addition, all fans are given a finish brush coat of resin after assembly for more complete bearing bolt and nut heads as well as bearing cover bolts and nuts exposed to the airstream are of stainless steel (or Monel, if speci-fied) and are coated with resin after assembly.

5 Shafts are normally of stainless steel but can be specified Monel for special modification can be furnished with special flange drilling to meet chemical plant can also furnish coatings to resist attack to fans made of metal. When conditions are moderate and the corrosive agent is a common acid or mild alkali, an epoxy coating can be used on steel and aluminum. This coating is also moisture and abrasion resistant. Based on converted epoxy/cycloaliphatic amine technology the epoxy coating has superior flexibility and toughness plus Resistance to thermal shock. It may be used in air temperatures up to 250 more severe corrosive fumes and for excellent abrasion resis-tance plastisol and phenolic coatings are recommended. Applications for coatings of this type are usually sufficiently severe to justify a call to the factory to check on exactly what is needed for your specific and frames can be furnished in all stainless steel , aluminum or Monel.

6 The exact grade of metal used depends on the nature of the installation. Unless otherwise specified, #304 housings will be furnished when stainless steel is ordered. #316 stainless steel is also available. All Hartzell fans and blowers for corrosive applications are guaranteed for one full year from the date of engineers are continually experimenting with special materials and coatings. Your Hartzell sales representative is prepared to rec-ommend the most dependable solution to your Corrosion Corrosion Resistance GuideVisit **COATINGS Aluminum Stainless 304 Stainless 316 Carbon steel Monel Neoprene Teflon Viton Interplastics 8441 Hetron FR992 Dow 510A Epoxy (250 F) Inorganic Zinc (150 F) Coal Tar Epoxy (300 F) PLASITE 7122L (HAR, TFE)Potassium Hydroxide, to 25%NGGFGGGG-150S150 SGNGGP otassium Hypochlorite-NFNNF-----G---Potassium NitrateGGGGFGGG210210210GN-GPotassium PermanganateFGGGFG--210210210F-G(5)

7 -Potassium SulphateFGFGGGGG210210210GN-FPyrogallic AcidFGGGFG-----F---Salt SprayFF-NFGGG200-210G-GGSilver BromideNN-NF------G---Silver NitrateNGGNNFGG210210210G--FSodium AcetateGGFNFFGN210210210GN--Sodium BisulfateNNGNFGGG210210210G--GSodium BorateFGGFFGGG-210210G---Sodium Carbonate, to 35%NGGGGG--160S160S180SG--GSodium ChlorateNGGFNG--210210210NN-GSodium ChlorideFFFNFGGG210210210G(30)NGGS odium CitrateN-------210--F--GSodium Dichromate--GFFN--210210210F---Sodium FerricyanideG-G-F---210210210G---Sodium FluorideNNGNFF--180S180S180SF---Sodium HyDroxide, to 10%NGGFGFGF150S160S180 SGNGFS odium Hypochlorite, to 15%NFNNNFGG150S150S180 SFNG(5)FSodium HyposulfiteNG--F------F---Sodium NitrateGGFGFFGG210210210FN-GSodium NitriteG-GFNN--210210210FN-GSodium Perchlorate, to 10%----------100N---Sodium PeroxideNGGNFFGF---F---Sodium PhosphateN-FFFNGG--210 GNG(10)FSodium SalicylateN-------210--G--FSodium SilicateFGGGFG--210S210210GN-GSodium SulfateFGFFGG-G210210210FN-FSodium SulfiteFGFNNG--210210210FN-GSodium SulfideNGFFFG--210S210S210 SGN-GStannic ChlorideNNNNNFGG*210*180*210N---Stannous ChlorideNFFNFG-G*210*210*210F--GSteam VaporGGGGFNG-200210180F--NStearic AcidGGGNFFGG210210210GN-GStrontium HydroxideN-G--------G---Strontium NitrateN----------F---Sulfur Dioxide GasFNGFFNGF210210210N--GSulfuric Acid, to 25%NNFNFFGG*200*210*210 NNGFS ulfurous Acid, to 10%NFFNNNGN100100120N--FTannic AcidNGGFFGFG210210210G(50)

8 NGGT artaric AcidFFGNFGGG210210210GN-FTrichlorethylen eFGGFFNGGNNNNF-FWater (Moisture)GGGNGGGG180180200 GGGGX ylol-ToluolGGGGFNGGNN80 GGGGZinc ChlorideNGNN-GGG-*210*210GN-GZinc Cyanide (Moist)N----------G---Zinc Nitrate--G-----210210210F---Zinc SulfateNGFNFGGG210210210FN--FIBERGLASS **COATINGS Aluminum Stainless 304 Stainless 316 Carbon steel Monel Neoprene Teflon Viton Interplastics 8441 Hetron FR992 Dow 510A Epoxy (250 F) Inorganic Zinc (150 F) Coal Tar Epoxy (300 F) PLASITE 7122L (HAR, TFE)Ferric NitrateNGGNNGGG210210-F---Ferric SulphateNFFNNGGG210210210F---Ferrous SulphateNFNNFGG-210210210FN-GFluoboric AcidNF--FGG-210180S210SN--FFormalin FormaldehydeFFGNGNGN150-120G(20)FGFF ormic Acid, to 10%NGFNNGGN180180180NN-FFurfural, to 10%GGGFFNNN100120100FN-FGallic AcidGGGNFFNG--180F---GasolineGGGFGNGG180 -120 GGGGH ydrobromic Acid, to 25%NNNNNN-G*180*200*180N---Hydrochloric Acid, to 15%NNNNNFGF*180S*210S*210 SNNGFH ypochlorous AcidNN-N---G160S90100N---Hydrocyanic Acid, to 10%GFNFFG-G180150210N--FHydrofluosilicic Acid, to 10%NNNNFFGG*150S*150S*180 SNN-GHydrofluoric Acid, to 10%NNNNFFGN*130S*100S*150 SNN-NHydrogen Peroxide, to 30%GGFNNNGF150100150 GNGFH ydrogen Sulfide, to 5%NFGNNGGN180210210F-GFLactic AcidNFFNNFGG*210*210*210N--GMagnesium CarbonateFGFFFG--210S-180GG--Magnesium ChlorideNNNNFGGG210210210GN-GMagnesium NitrateFGFFFG---160210F---Magnesium Oxychloride-N---------N---Maleic AcidFGGNFNFG210180180NN-GManganese CarbonateF----------G---Mercurous NitrateNGGFNF-----F--FMethyl Ethyl Ketone.

9 To 10%GGGGGNGNNNNGGFFM ehtylene ChlorideNGGGFN-FNNNNF-FNaphthaGGGGFNGG18 0180180 GGGGN apthalensulfonic Acid-N---N-----N--GNickel ChlorideNNNNNFGG210210210G--GNickel NitrateNGFFNG--210210210F---Nickel SulphateNFFNFGGG210210210F---Nitric Acid, to 5%NGGNNFGF150160150 NNFFN itrous AcidNGFNNN-----N--FOleic AcidFGGNFNGF210200210GN-GOxalic Acid, to 10%NGFNFNGG*210-*120 GNG(20)GOzoneFFGFGNGG--N----Perchloric Acid, to 10%**NNFNGFGG150150150NN-FPhenol, to 10%GGGNFNGGN-NG(10)F-NPhosphoric Acid, to 10%NNGNNF-G*210S*210S*210 SNNNFP hosphoric AnhydrideG--N-N-----F---Picric Acid, to 10%NGGNNGGG--NN--FPotassium BromideNGFNFG--160160210G--GPotassium ChlorideNGFNFGGG210210210GN-GPotassium CyanideNGNFFGGGN--F--GPotassium DichromateGGGFFGGG210210210F---Potassium FerricyanideFGGNFG--210210210G---Potassi um FerrocyanideFGGNGG--210210210G--G* - Special shaft and hardware required.

10 ** - Special design considerations (explosive environment), contact factory.** - Temperature values shown for fiberglass resins are for immersion or condensate contact temperature values are shown, resin is suitable for hood and duct type applications for the full operating tempera-ture of the product. See product specifications for materials of construction and maximum operating temperature are considered to be 100% except when indicated by (%).KEY: G = Good F = Fair N = Not Recommended - = Unknown S = Synthetic Veil Required H&D Suitability for hood and duct applications at ambient conditions onlyCall 1-800-336-3267