Design & Fabrication

Technical Information for Specifiers, Designers and Fabricators, provided by the American Galvanizers Association (opens in a new window)

Specification & Inspection

 

• HDG Coating Specifications

  • ASTM Specifications

  • Other Specifications

• Specifying Duplex Systems

  • Preparing HDG For Paint

  • Preparing HDG For Powder Coat

• Inspection of HDG

  • Types of Inspection

• Reparing HDG Steel

• Post HDG Considerations

  • Passivation

  • Plugging Holes

  • Storage

• Inspection Course

  • Inspector Listing - U.S.

  • Inspector Listing - Non - U.S.

      Design Information

 

• Bend Diameters

• Cold Worked Steels

• Dissimilar Steel Chemistries

• Dissimilar Metals in Contact

• Distortion & Warping

• Fasteners, Bolts, & Nails

• Hole Sizes

• Threaded Assemblies

• Part Identification

• Masking

• Material Handling

• Moving Parts

• Overlapped Surfaces

• Steel Residues

• Steel Selection

• Steel Size Limits

• Steel Surfaces

• Temporary Bracing

• Venting & Drainage

  • Box Sections

  • Enclosed & Semi-Enclosed Products

  • Handrail

  • Pipe Columns, Pipe Girders, Street Light Poles & Transmission Poles

  • Pipe Truss 3 inches (8 cm) & Larger

  • Rectangular Tube Truss

  • Tapered – Single Arm

  • Tubular Fabrications

• Weight Increase

• Welding Before Galvanizing

• Zinc Metal Properties

     Fabrication       Considerations

 

• Abrasive Blasting

• Bending

  • Bending Before HDG

  • Bending After HDG

• Distortion & Warping

• Dulling Surfaces

• Fasteners, Bolts, & Nails

  • Holes

  • Tapping Threads

  • Threaded Assemblies

• Marking Parts

• Masking

• Material Handling

• Moving Parts

• Overlapped Surfaces

• Steel Residues

• Steel Surfaces

• Temporary Bracing

• Venting & Drainage

• Welding

  • Welding Before HDG

  • Welding After HDG