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ASTM A 123/A 123M Document Information:
Title
Standard Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products
ASTM International
Publication Date:
Oct 10, 2002
Scope:
This specification covers the requirements for zinc coating
(galvanizing) by the hot-dip process on iron and steel products
made from rolled pressed and forged shapes, castings, plates,
bars, and strips.
This specification covers both unfabricated products and
fabricated products, for example, assembled steel products,
structural steel fabrications, large tubes already bent or
welded before galvanizing, and wire work fabricated from
uncoated steel wire. This specification also covers steel
forgings and iron castings incorporated into pieces fabricated
before galvanizing or which are too large to be centrifuged (or
otherwise handled to remove excess galvanizing bath metal).
NOTE 1 - This specification covers those products previously
addressed in Specifications A 123-78 and A 386-78.
This specification does not apply to wire, pipe, tube, or
steel sheet which is galvanized on specialized or continuous
lines, or to steel less than 22 gage (0.0299 in.) [0.76 mm]
thick.
The galvanizing of hardware items that are to be centrifuged
or otherwise handled to remove excess zinc (such as bolts and
similar threaded fasteners, castings and rolled, pressed and
forged items) shall be in accordance with Specification A 153/A
153M.
Fabricated reinforcing steel bar assemblies are covered by the
present specification. The galvanizing of separate reinforcing
steel bars shall be in accordance with Specification A 767/A
767M.
This specification is applicable to orders in either
inch-pound units (as A 123) or SI units (as A 123M). Inch-pound
units and SI units are not necessarily exact equivalents.
Within the text of this specification and where appropriate, SI
units are shown in parentheses. Each system shall be used
independently of the other without combining values in any way.
In the case of orders in SI units, all testing and inspection
shall be done using the metric equivalent of the test or
inspection method as appropriate. In the case of orders in SI
units, such shall be stated to the galvanizer when the order is
placed.
Keywords:
- coatings - zinc
- galvanized coatings
- steel products - metallic coated
- zinc coatings - steel products
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