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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:
Jul 1, 2008
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). Inchpound 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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