Galvanize It! Online Seminar

Appendix: Example Agenda for Pre-Galvanizing Meeting

  1. AESS Category Characteristics & Cost Matrix
    1. Review modified AESS matrix for HDG and AGA publication Hot-Dip Galvanized Architecturally Exposed Structural Steel: Specifiers Guide
    2. Supply of project drawings containing information on weight and surface area
    3. What modified AESS category applies to which pieces/assemblies
    4. Define custom characteristics for HDG for each AESS category
    5. Identify critical or significant surfaces
    6. Review AISC/CISC cost matrix for AESS
    7. Rank category characteristics in order of importance regarding cost
    8. Identify any critical parts or surfaces where budget should be focused
  2. Identification & Marking of Parts
    1. Identify acceptable types of markings
    2. How to mark AESS category and characteristics required for each part
    3. How to mark critical or significant surfaces
  3. Steel Chemistry
    1. Identify all steel grades used and for what parts
    2. Supply of Material Test Reports (MTRs) for all heats of steel
    3. Identify assemblies where mixed appearance may occur
    4. Identify steels where excessive coating thickness and/or brittle coatings may occur
  4. Design & Fabrication
    1. Evaluate susceptibility for warpage/distortion (ASTM A384)
    2. Evaluate susceptibility for embrittlement (ASTM A143)
    3. Confirm the use of design and fabrication best practices (ASTM A385 and AGA Publication Design of Products to be HDG After Fabrication)
    4. Identify vent/drain holes where size or location can be optimized for aesthetics
    5. Acceptable appearance of vent/drain holes before HDG (drilled and/or smoothed)
    6. Evaluate susceptibility for weeping welds or rust bleeding; identify mitigation strategy
    7. Identify all welding rod types used and for what assemblies
    8. Supply of Material Test Reports (MTRs) for all welding wire/rods used
    9. Use of anti-spatter sprays and acceptable materials
    10. Acceptable appearance of welds before galvanizing
    11. Use of masking materials
    12. Evaluate oversized parts and acceptability of progressive dipping
    13. Define a procedure for communicating and resolving inadequate design details or insufficient preparation of welds, vent/drain holes, etc. after delivery to the galvanizer
  5. HDG Processing
    1. Define a procedure to communicate and remedy cosmetic damages due to transportation or handling before HDG
    2. Evaluate available lift points for HDG and any potential impact on aesthetics
    3. Use of post-treatments
  6. Finishing & Surface Smoothing
    1. Acceptable appearance after smoothing for handling marks, roughness, runs, spikes, dross inclusions, galvanizing skimmings, or other surface conditions
    2. Acceptable appearance of HSS seams
    3. Acceptable appearance of mill markings
    4. Plugging of holes, plug material, and acceptable appearance of plugged holes
    5. Acceptable appearance of welds; agree on a procedure for smoothing raised welds
    6. Acceptable appearance of welds, seams, mill markings, or other raised areas where grinding prior to HDG was not performed; agree on a procedure should this issue arise
    7. Acceptable appearance of thermally cut edges on thick steels; agree on a procedure should this issue arise
    8. Acceptable appearance of progressive dip line
  7. Duplex Systems
    1. Define acceptance criteria and assign responsibilities for surface smoothing. See ASTM A123 6.2, A123 6.4, and D6386 5.2 (for painting) or D7803 5.1.1 (for powder coating)
    2. If using zinc-rich paint for touch-up and repair at the galvanizing plant, evaluate re-coat window of the paint and mutually agree whether repair material should be applied by the galvanizer or painter
    3. Define use of compatible filler materials to fill small indentations in the galvanizing
  8. Handling, Storage & Wet Storage Stain (WSS)
    1. Define acceptable handling methods after HDG
    2. Define packaging or dunnage requirements
    3. Define realistic expectations for preventing and removing WSS at the HDG plant
    4. Responsibility for preventing WSS during trucking
    5. Define storage and WSS removal procedures at the job site
  9. Inspection
    1. Define customer hold-points during QA/QC
    2. Reporting
  10. Touch-Up & Repair At The Galvanizing Plant
    1. Repair material selection and practical limitations of the chosen material
    2. Use of cosmetic touch-up
    3. Cosmetic touch-up material selection and color matching
  11. Touch-Up & Repair At The Jobsite
    1. Repair material selection and practical limitations of the chosen material
    2. Define responsibility and a procedure for field repairs due to transportation, handling damage (flaking), or other erection activities
    3. Define responsibility and a procedure for remedying weeping welds and rust bleeding