[TR] Stainless Steel

[TeriAnn J. Wakeman]

What is flaking off my bumper as I go over the rust with steel wool is 
about the same thickness as chrome plating.  think the question to ask a 
manufacturer is if the bumper is 100% stainless steel or is it plated on 
the front. And to look at the back to see if it is painted or unpolished 
steel.

TeriAnn

On 5/14/23 5:35 AM, DAVID MASSEY wrote:
> They make stainless pots and pans with aluminum inserts.  These are 
> forged together using various processes.  It is possible that they are 
> forging flat plates of stainless and mild steel and then punching and 
> forming bumpers out of that sandwich.  Stainless steel has a 
> reputation of being difficult to machine and this may explain why they 
> would go to the trouble of forging a thin layer or stainless on a more 
> easily machinable soft steel.
>
> On the other hand, they say "100% stainless steel grade 304 , 
> thickness 1.5mm"   If that were the case why paint the inside with 
> three coats of paint?  Me thinks they are lying.
>
> Dave
>
>
>
>
> -----Original Message-----
> From: TeriAnn J. Wakeman <tjwakeman at gmail.com>
> To: triumphs at autox.team.net
> Sent: Sat, May 13, 2023 8:28 pm
> Subject: Re: [TR] Stainless Steel
>
> On 5/13/23 6:08 PM, stagbytriumph at triumphstagclub.org wrote:
> > Sorry Alex,
> >
> > You may want to do some fact checking.  There is no grade for "solid 
> stainless steel".
> >
> > I do not believe a stainless-steel plating exists for plating over 
> mild steel technology exists a of
> > yet.
>
> "Welcome to PTT BUMPERS. We are a specialist manufacturing in stainless
> steel bumpers for classic car. Our bumper are made of 100% stainless
> steel grade 304 , thickness 1.5mm and hand polished. The gloss of bumper
> is shiny like mirror polish and the backside of bumper are cover by 3
> painted layers to protect the bumper from the bad weather and chemicals
> elements."
>
> They plate them somehow.
>
>
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