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"Meanings of plating spec abbreviations: MFZn-Ni, MFZn1c, MFZn2-C, MFZn-1S-2, MFZn8-S, etc."

Current questions & answers:

May 14, 2021

Q. What is the Meaning of MFZn8C-NH, I have received one drawing from Japan & plating grade is mentioned MFZn8C-NH
Can anyone explain what is actual meaning of "NH"

Kanhaiya Kumar
- GURUGRAM India.
^


June 11, 2021

A. Kanhaiya,
Maybe you've gotten the idea from the replies to the older similar questions below, but the best thing to do in a situation like this is go back to the CUSTOMER, ask what spec or standard the plating grade comes from, if they can give you a copy of that spec or standard, and if not where you can get it from.

A proper drawing should have the relevant spec or standard listed right on there.

ray kremer
Ray Kremer
Stellar Solutions, Inc.
supporting advertiser
McHenry, Illinois
stellar solutions banner
^



July 9, 2021

Q. According to Honda's coating specifications, what is the abbreviation MFCu and how about its colour?

Santhosh gautham
- Chennai, tamilnadu, India
^



August 31, 2021

Q. Hello, Good day!

I still confused with plating Zn
My Company only have drawing with material & plating MFZnIII and my customer drawing is MFZn2-B, MFZn5-B and MFZn8-CF, is the plating same or not?

Can do you explain to me about that?

Thank You So Much.

Best Regards,

Muhammad Angga
- Cikande, Indonesia
^


August 2021

A. Hi Muhammad. No, they are not the same.
Thank you for writing in American english, but I think we are having language difficulties, because several people have repeatedly tried to make the same two points.

1. Words like "MFZnIII" mean nothing at all until we know what spec authority we are referencing. "III" could mean "trivalent chromate", it could mean "level 3 inspection required", it could mean "for severe exposure" as opposed to for mild or moderate exposure, Only after we say, for example, 'per ABC Automotive Company plating specification XYZ987' does it mean anything.
2. Quoting something, let alone trying to supply it, without the specification on hand is madness. You have to obtain the spec. Either your customer supplies the spec, or they tell you where to get it.

Luck & Regards,

pic of Ted Mooney
Ted Mooney, P.E. RET
Aloha -- an idea worth spreading
finishing.com - Pine Beach, New Jersey
^




Closely related historical postings, oldest first:

2007

Q. We are a automotive metal stamping company based in Malaysia and Thailand and recently, one of our potential customers in Thailand have asked us for quotations for parts with the finishing spec as MfZn8-S. We know MfZn8-C to be normal zinc plating but we do not understand the significance of the change of the last letter in the code to S. Could someone who understands please enlighten us.

Additionally, does the colour of the plating need to be specified after the code?

Thank you.

Joe Ong
Customer - Kuala Lumpur, Malaysia
^


? Hi Joe. You've moved on to the second problem of what does "-S" mean ...

But you've skipped over the first problem of what does "MFZn8" mean? Although it probably means 8 microns of Zinc plating, does it imply "per ASTM B-633" or "DIN xxxx" or "ISO xxxx" or "JIS xxxx" or "Honda xxxx", etc. Numerous specs may have "MFZn8", and some may have an "-S" ... but complying with one doesn't necessarily mean you complied with the spec. that the customer intended :-(

Luck & Regards,

Ted Mooney, finishing.com
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
^



Abbreviations used in Honda plating specs

2004

Q. Regarding Honda's plating spec no. MFZn2-C. What color would the chromate be on this spec? It seems unclear whether it would be clear or yellow chromate.

Thanks,

Robert Bittner
metal stamping manufacturer - Geneva, Ohio
^


June 22, 2009

A. Per your question regarding MFZn2-C, "C" means Yellow passivation.
B means Blue passivation,
C means Yellow passivation and
K means Black passivation

Ars SRP
- Bangkok, Thailand
^


July 27, 2010

? I think C may refer to CLEAR and K may refer to Black? Be happy to hear from someone who KNOWS!

Debbie A [last name deleted for privacy by Editor]
- Grand Rapids, Michigan USA
^


February 14, 2012

A. C means the Zn plating color is yellow, and B means Bright color.

FRANK HSU
- Taichung, Taiwan
^


November 2013

thumbs up signHi all. I'd bet that the answer is right within the spec and the way to know is to read the spec. I hope people are not quoting & plating to specs they don't even have -- but seeing so many inquiries here, there seems little doubt that people are doing just that. I'd love to see the certs:

"We hereby certify that these parts have been plated in full accordance with internet rumors about what that spec might say"  :-)

Regards,

Ted Mooney, finishing.com
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
^



2003

Q. Does anybody know what the plating spec. MFZn-Ni 8-a3-3 is?

John J Colucci
- Waterbury, Connecticut
^


2007

Q. I'm working in a plating shop in Bekasi, Indonesia. I have a question from my customer about the meaning of the number "2" in symbols MFZn-1S-2. Would you please find the answer or tell me where I can find the answer. Thank You.

Cintadi P. Liauw
Plating shop - Bekasi, Jawa Barat, Indonesia
^



A. Hi John. Apparently "MF" means a ferrous substrate in lots of different Japanese specs; "Zn-Ni" means zinc-nickel plating, "8" probably means 8 micron plating thickness. "a3-3" is probably some description of the chromating requirement but I'm not sure.

Hello Cintadi. It has the sound of a JIS spec for zinc plating plus chromating on steel to me,

These letters and numbers are not specifications! They are acronyms used within a specification. I would inquire of these customers if they are referring to Japanese specifications JIS H-8610 [affil. link to spec at Techstreet] and JIS H-8625 [affil. link to spec at Techstreet] or some other spec. Good luck.

Ted Mooney, finishing.com
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
^



2007

Q. I am looking for the details on spec ESP-WS-7620 REV. K with surface treatment MFZn-2S

Thanks,

Angie Robinson
Fastener Distributor - Lake Zurich, Illinois, USA
^



A. Hi Angie. According to an on-line list of specs maintained by epiplating.com, I believe that one is a Mitsubishi Motors spec for zinc plating on a steel substrate. Good luck.

Regards,

Ted Mooney, finishing.com
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
^



May 2, 2012

Q. Hi I am Karthik. I am entirely new to plating, so could you help me in describing the following plating specification?

MFZn1c -- what does this means?

Karthik Kanniyappan
- Chennai, India
^


May 2, 2012

A. Hi Karthik.

Where did you get that spec? Did it come from a Honda drawing? If not, is it reasonable to think from the circumstances where you found it that it is a Honda spec? If it came from Honda, you get the spec from your Honda buyer. Good luck.

Regards,

Ted Mooney, finishing.com
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
^



February 14, 2013

Q. What does this mean?

MFZnNi2-B

Muhammad Khan
- Pakistan, Karachi
^


February 14, 2013

A. Hi Muhammad. It sounds like zinc-nickel alloy plating. Please put it into context: where did you hear it?

Most people seem to think it's a Honda spec, so if you have no reason to believe otherwise, then you probably ought to contact Honda and get the spec. You cannot offer plating to a spec. without having the spec. in hand, so finding out what the acronyms stand for isn't the whole answer anyway. Good luck.

Regards,

Ted Mooney, finishing.com
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
^


February 16, 2013

Q. Hi, Ted Mooney

Yes, it is Honda Spec.

MFZnNi2-B
This is Zinc alloy plating (Ni is 6 ~ 10%)
Thickness is 8 Microns min and Bright in colour

Please explain in detail.

Thanks

Muhammad Khan
- Karachi, Pakistan
^


February 17, 2013

A. Hi cousin. Sorry, but we might be having some language difficulties. You've told us this is a Honda spec. for Zn-Ni plating with 6-10% nickel, a minimum of 8 microns in thickness, and must be bright in color. So I don't quite understand what you mean by asking us to tell you "what does it mean?" :-)

If you are asking us to put the spec on line or email it to you, sorry but no one is allowed to do that except your Honda buyer and perhaps specification services which have licensed that right from Honda. You must contact your Honda buyer and get their specs from them. Good luck.

Regards,

Ted Mooney, finishing.com
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
^



May 16, 2013

Q. Hi,

I would like to know about "MFZn-5TC" surface coating. If anyone has the answer please let me know.

Thanks

Shravan Tripathi
- Indore, India
^


August 30, 2013 -- this entry appended to this thread by editor in lieu of spawning a duplicative thread

Q. Dear sir,

Please tell me about mfzn5-c for JIS SPECIFICATION. AND APPLICATION THEN FEATURES.

Marudhupandian Ganesan
- Chennai, India
^


August 30, 2013

A. Hi Marudhupandian.

I hope this isn't too confusing, but if I were to ask you to tell me about "type 1 class 2" plating, you would respond that it is a shorthand within a specification, and will mean different things depending on what specification I'm talking about, and I'd need to find out the specification number first.

While we might assume that MFZN5-C means 5 microns of zinc plating with yellow chromate, that code is a shorthand within a specification (perhaps JIS H-8610 and JIS H-8625) but you must find out what specification number it refers to and get a copy of it, because there is really nothing to prevent a given manufacturer from using that acronym/abbreviation for something different in a different spec. Good luck.

Regards,

Ted Mooney, finishing.com
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
^

----
Ed. note:
Please see letter 35197 for another long list of similar sounding Q&A's about plating specs.



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