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topic 49660

Brass plating on stainless steel?


A discussion started in 2008 but continuing through 2018

August 13, 2008

Q. I am engaged in architectural hardware business. One of my customers is asking for stainless steel material in satin brass and antique brass finish.

What is the best method for achieving these finishes on stainless steel base material? I would appreciate any references to such finish processes. How does such a product compare with the original versions in 'solid brass' material?

Thanks for your attention!
Beijing

Ho Ming Yeung
manufacturer, trader - Hong Kong, China


September 2, 2008

Q. I would appreciate any information on brass plating of stainless steel, still have not found good info on this. Thanks!

Ho Ming Yeung [returning]
- Hong Kong


September 2, 2008

A. Dear sir,
If you want to do the brass plating on stainless steel first you have to do nickel strike plating then you go for the brass plating. Nickel strike bath contains nickel chloride and hydrochloric acid. generally nickel strike plating takes 2-5 min.

Shoban Kesarapu

Shoban Kesarapu
    plating chemicals supplier
Secunderabad, A.P., India



September 3, 2008

Q. Dear Sir

Thanks very much for your reply! Is it possible to achieve a very similar colour to brass? Most of the samples I have seen looked very 'pale' and not very valuable.

Thanks!

Ho Ming Yeung [returning]
- Hong Kong


September 4, 2008

A. The nickel strike, commonly referred to as a Woods Nickel Strike, is used as a base for subsequent plating. If you are trying to do a bright brass flash a Watts type nickel underplate is necessary. If you desire a "heavy brass" then you can plate that over the Woods Strike although I would personally prefer a short Watts Nickel plate.

Gene Packman
process supplier - Great Neck, New York


September 5, 2008

A. Sir,
If you want good brass finishing, after strike nickel plating you have to bright nickel plate, then go for brass plating -- then it appears good. Try it, good luck

Shoban Kesarapu

Shoban Kesarapu
    plating chemicals supplier
Secunderabad, A.P., India




August 19, 2016

Q. Mr. Shoban Kesarupu:

Did this suggested idea work? I am looking for brass plating for eye hooks which are of Stainless Steel material.
Thanks!

Ashwini Joshi
- Pune, Maharashtra India


August 2016

"Electrocoating: a Guidebook for Finishers"
by Electrocoat Association

from Abe Books
or
info on Amazon

Hi Ashwini. Stainless steel can certainly be brass plated per above descriptions and lacquered. To reiterate, you need to start with Wood's nickel to get adhesion on stainless steel. Then you can either do just brass plating if you don't need shine, or you can do bright nickel plating followed by brass plating if you want a reflective shine. However, electrocoating the nickel plating with a lacquer with a brass tint might be easier and cheaper. Good luck.

Regards,

pic of Ted Mooney
Ted Mooney, P.E. RET
finishing.com
Pine Beach, New Jersey
Striving to live "Aloha"


October 16, 2013 -- this entry appended to this thread by editor in lieu of spawning a duplicative thread

Q. Please tell me how I can get gold polish on stainless steel utensils.

Jayanti Mutha
- Chennai, India


October 18, 2013

A. Hi Jayanti. I'm not sure that I understand your question, but stainless steel can be nickel plated then gold plated. Alternately, titanium nitride is gold colored, and is applied to stainless steel by PVD processes.

Regards,

Ted Mooney, finishing.com
Teds signature
Ted Mooney, P.E.
finishing.com
Pine Beach, New Jersey



April 9, 2018

Q. Hello. Can I electroplate brass onto Stainless steel than put on a clear protective PVD coating? Is this the most durable finishing? What size restrictions would be for the PVD coating. Thanks.

mike wylie
- toronto ontario canada


"A User's Guide to Vacuum Technology"
by John F. O'Hanlon

from Abe Books
or
info on Amazon

April 2018

A. Hi Mike it's possible that shops have different size vacuum chambers, so I don't know the exact limits, although probably not very big for fabricated parts, although I've heard of titanium nitride plated stainless steel sheets up to about 4' x 10'.

But I would not do brass plating and follow it with a PVD clearcoat. I'd just go directly for a PVD coating of titanium nitride or other material which delivers the tone you are looking for. You might google "titanium nitride stainless sheet"

Regards,

pic of Ted Mooney
Ted Mooney, P.E. RET
finishing.com
Pine Beach, New Jersey
Striving to live "Aloha"


May 22, 2018

A. Zirconium nitride is used in the faucet and door industries for the brass finish.

jim treglio portrait
Jim Treglio
PVD Consultant - San Diego, California



August 24, 2018

Q. Hello. I have a hotel project requiring stainless steel rails on a hairline brass finish. How do you do this? We find it very hard to find a company in my country who specializes on this. An expert answer will be much appreciated.

Rodolfo Velasquez Jr.
- Pasig City, Metro Manila, Philippines


August 2018

A. Hi Rodolfo. Unfortunately, I don't even know what you mean by "stainless steel rails on a hairline brass finish" and don't want to mislead you over the semantics of different geographical areas. Maybe you mean "... with a hairline brass finish", or maybe an auto-correct caught you and you meant "with a hairline brush finish"? If you can clarify exactly what finish you are seeking someone may be able to tell you how it's most commonly achieved. Thanks.

But as a starting point, stainless steel cannot be electrodeposited (electroplated onto brass); brass can be electroplated onto stainless but, per earlier responses on this thread, most "brass-look" finishes on stainless steel are probably not actually brass but zirconium nitride deposited by PVD processes. Good luck.

Regards,

pic of Ted Mooney
Ted Mooney, P.E. RET
finishing.com
Pine Beach, New Jersey
Striving to live "Aloha"


August 26, 2018

Q. Thank you sir mooney for the response. Lets say i have a high-polished and hairlined piece of grade304 stainless steel flat bar, how do i change its natural color into a BRASS LOOK or BRASS COLOR?

Rodolfo Velasquez Jr. [returning]
- Pasig City, Metro Manila, Philippines


August 2018

A. Hi Rodolfo. Although it is possible to brass plate stainless steel, that is not how the color is usually achieved in architectural work. Rather, the stainless sheet or barstock is PVD (Physical Vapor Deposition) coated with titanium nitride or zirconium nitride in a vacuum chamber.

My understanding is that people don't generally buy the stainless and then seek a PVD coating service, but rather purchase the hairline finished colored stainless steel from a supplier. Although we don't recommend particular suppliers (why?), some typical pages that explain and illustrate the process that I am talking about are:

http://www.pacificplus.com/specs.htm
http://www.i-dsp.com/en/technology/titanium.php
http://www.globalpvd.com/en/productTi.html
http://www.rigidized.com/color.php
https://www.azahner.com/materials/ti-coated-stainless-steel

Regards,

pic of Ted Mooney
Ted Mooney, P.E. RET
finishing.com
Pine Beach, New Jersey
Striving to live "Aloha"



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