Can 4130 steel be successfully galvanized?

4130 steel is a chromoly steel. Steels of this chemistry have presented some adherence problems in the past when galvanized. The galvanized coating developed in some areas but not others. It would be best to try ga...
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What are the differences between ASTM A123/A123M and ASTM A385?

ASTM A123/A123M give the requirements for inspecting the final hot-dip galvanized product, including coating thicknesses and sampling requirements. ASTM A385 gives information on recommended steel chemistry for stee...
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Repairing damaged or uncoated areas of hot-dip galvanized coatings

Although galvanized coatings are highly abrasion resistant, coating damage may occur once the galvanized steel leaves the galvanizer’s facility due to extremely rough handling, installation techniques, or in-service...
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Is it possible to have steel with chemistry too good for galvanizing?

It is possible to have steel chemistry with levels of silicon and phosphorus that are too low to meet the minimum thickness levels specified in ASTM A123 and ASTM A153. Very low silicon levels are seen more often on...
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Necessary design and fabrication steps to ensure the highest quality hot-dip galvanized coatings

ASTM A385, Standard Practice for Providing High-Quality Zinc Coatings (Hot-Dip) identifies good practices to obtain a zinc coating to meet your expectations. The foundation of the specification is proper steel selec...
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Why is lead added to the galvanizing bath?

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Galvanizing small parts, hardware, and fasteners to ASTM A153

ASTM A153 governs zinc coatings applied by the hot-dip process on iron and steel hardware, including nails, bolts, nuts, fasteners, and rods.  The hot-dip galvanizing process for articles galvanized to ASTM A153 is...
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Embrittlement of Hot-dip Galvanized Steel and How to Avoid It

ASTM A143, Standard Practice for Safeguarding Against Embrittlemnet of Hot-Dip Galvanized Structural Steel Products defines the practice of procedures that can be followed to safeguard against the possible embrittle...
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ASTM A767 - Galvanizing Steel Bars for Concrete Reinforcement - Rebar

ASTM A767, Standard Specification for Zinc-Coating (Galvanized) Steel Bars for Concrete Reinforcement first and foremost specifies the minimum mass (weight) of zinc coating on reinforcing steel bars by size.  Number...
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Preparing the hot-dip galvanized steel surface for painting or powder coating

Similar to painting over black steel, surface preparation is critical when painting or powder coating over the zinc coating of hot-dip galvanized steel. However, before any surface preparation takes place,...
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