Home /
T.O.C.
FAQs
 
Good
Books
Ref.
Libr.
Advertise
Here
Help
Wanted
Current
Q&A's
Search 🔍
the Site

pub
Free personalized metal finishing help!


Suggested thickness of hot dip galvanizing



(-----) January 28, 2008

I have a 4 cm x 5 mm black steel strip 6 m long. I want to hot dip galvanize it. What should be the minimum thickness (micron) of Zn to be applied.

ZAHID NIAZI
Engineer - Jeddah, saudi Arabia
^


First of three simultaneous responses -- February 1, 2008

The minimum thickness is specified in ISO 1461 [link is to spec at Amazon].
For 6mm you'll want to see 85u average and not less than 70 anywhere.

But don't assume that the galvanizer has good control on the thickness. He can't just dial up a thickness.

Its influenced by steel chemistry, flux strength, type, zinc temperature, immersion time, alloys in the zinc, drainage time (if hollow) etc

geoff_crowley
Geoff Crowley
Crithwood Ltd.
Westfield, Scotland, UK
crithwood logo
^


Second of three simultaneous responses -- February 2, 2008

It should be minimum 70 micron and 505 gram/m2

Hakan Esen
Hakan Esen, Material Engineer(BSc.)
galvanizing plant manager - Bursa, Turkey
^


Third of three simultaneous responses -- February 3, 2008

Low end industry standard for galvanizing thickness is G60 or .60 oz per sq Ft.

Mark Postema
- Rancho Cucamonga, California
^


February 22, 2008

Dear Geoff Crowley,

What should be the minimum thickness of Zinc for a Galvanized pipe (Inside and out side the pipe), also let me know its area to weight ratio in general?

Qaiser Majid
Qaiser Majid
Lahore, Pakistan
^


February 25, 2008

You didn't state the wall thickness of the pipe.

There might be a special standard for pipes, I'm not sure. But if you apply ISO 1461 [link is to spec at Amazon], then for wall thickness of 6 mm or more, you want 85 you on both sides of the wall.

geoff_crowley
Geoff Crowley
Crithwood Ltd.
Westfield, Scotland, UK
crithwood logo
^

none
adv.
this text gets replaced with bannerText
spacer gets replaced with bannerImages

Q, A, or Comment on THIS thread -or- Start a NEW Thread

Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful.

If you are seeking a product or service related to metal finishing, please check these Directories:

 
Jobshops
Capital
Equipment
Chemicals &
Consumables
Consult'g, Train'g
& Software


About/Contact    -    Privacy Policy    -    ©1995-2022 finishing.com, Pine Beach, New Jersey, USA