Best Metal Hubs for Wheels

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Anonymous Poster	Best Metal Hubs for Wheels 09/22/2008 11:45 AM
	HI, I'd like to know your advices about the strenght of steel/alloy material.I'm on the way to have my four hubs CNC matchined (I'm restoring a car) and I don't know which is the best material for the job.Iwas thinking to use 304 SS but someone told me that it's not so strong for the job, so I was looking for Ergal but reading the specifications sheet I've found that the SS has more than double resistance... So, does anyone know which is the best and strong material for my hubs? I don't want to see any sign of corrosion/oxidation for a long time... Thanks in advance for your help. Regards Giorgio
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bob c Guru Join Date: Jul 2007 Location: Fort Lauderdale Florida Posts: 5708 Good Answers: 123	#1 Re: Best Metal Hubs for Wheels 09/22/2008 6:27 PM
	Are you leaving them unpainted? If so Use a high strength steel, and have them chrome plated. They could be polished first, or just plated over the machine work as it is. If you are going to add color to them, I would suggest cadmium plating first. That way if the paint chips when attaching the wheels are attached, there will be no corrosion under the wheels. Good luck. __________________ Bob
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sidevalveguru Power-User Join Date: Jan 2007 Location: The Capital City, Cow Hampshire, USA Posts: 476 Good Answers: 3	#6 In reply to #1 Re: Best Metal Hubs for Wheels 09/23/2008 5:04 PM
	be careful of hydrogen embrittlement, if electroplating. also be aware that the higher strength steels are more notch sensitive. __________________ If you always do what you've always done, You'll always get what you've always had!
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sidevalveguru Power-User Join Date: Jan 2007 Location: The Capital City, Cow Hampshire, USA Posts: 476 Good Answers: 3	#2 Re: Best Metal Hubs for Wheels 09/23/2008 6:36 AM
	Please, tell us more of the restoration that requires CNC hubs! __________________ If you always do what you've always done, You'll always get what you've always had!
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Anonymous Poster	#3 In reply to #2 Re: Best Metal Hubs for Wheels 09/23/2008 1:57 PM
	HI, thanks for your answers even if not specific to material..So, the restoration, I have bought a Lotus Esprit S2.2 1981 in UK and I'm doing a nut&bolt restoration. Every part must be new or renoveted where it's possible, the rear hubs are not available and the front are very expensive...but I can have these parts machined free...so I need only to choose the best material. If someone is interested I have loaded my restoration photos at: http://s303.photobucket.com/albums/nn145/ghe67/My%20Esprit%20restoration/?albumview=slideshow Many thanks for your attention. Giorgio
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bwire Guru Join Date: Dec 2007 Location: Upper Mid-west USA Posts: 7498 Good Answers: 97	#4 Re: Best Metal Hubs for Wheels 09/23/2008 2:40 PM
	I don't want to see any sign of corrosion/oxidation for a long time... What environmental factors are involved, is a corrosive environment; will the vehicle be on an island in an ocean, etc?? 521 SS is a great material spec __________________ If death came with a warning there would be a whole lot less of it.
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Anonymous Poster	#5 In reply to #4 Re: Best Metal Hubs for Wheels 09/23/2008 2:55 PM
	Hi Bwire, thanks for your advice. ....island in an ocean...?? uhmmm no, it's only the road salt that are frequently used in my country in the winter...so seeing that I'm doing a little masterwork I want a rust proof material. I'm a little maniac...I know, but I will see regarding the 521 SS. Thanks Giorgio
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bwire Guru Join Date: Dec 2007 Location: Upper Mid-west USA Posts: 7498 Good Answers: 97	#7 In reply to #5 Re: Best Metal Hubs for Wheels 09/23/2008 7:03 PM
	Okay great 521 is a specific grade and used when fatigue is and issue you may not find it easily. A 17-4 is readily available and may service you well if a very brilliant finish were specified about 10 micron. A mild vinegar and water mix sprayed on followed by a soft water rinse is a good corrosion prevention __________________ If death came with a warning there would be a whole lot less of it.
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bob c Guru Join Date: Jul 2007 Location: Fort Lauderdale Florida Posts: 5708 Good Answers: 123	#8 In reply to #7 Re: Best Metal Hubs for Wheels 09/23/2008 11:54 PM
	Vinegar and water? Where can I find a vineger and water solution? Perhaps I should ask my wife? __________________ Bob
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Anonymous Poster (2); bob c (2); bwire (2); sidevalveguru (2)

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