| Stainless Steel Grade Selection |
15% |
Whether the proposed alloy matches the installation environment, exposure level, and maintenance plan. |
304 stainless steel is commonly suitable for many general outdoor applications; 316 or 316L is generally preferred for coastal, chloride-rich, or de-icing-salt environments. Require material certificates showing the actual grade. |
1–5 |
| Material Traceability |
10% |
Ability to trace sheets, tubes, plates, and other components from purchase through fabrication. |
Request heat or batch numbers, mill certificates, purchase records, and a documented process for matching supplied material to the finished sculpture. |
1–5 |
| Structural Engineering |
13% |
Wind resistance, foundation loads, anchoring, stability, transportation sections, and site-specific installation conditions. |
For large or publicly accessible statues, require engineering calculations, connection details, anchor-bolt specifications, and drawings reviewed for the project location and applicable building requirements. |
1–5 |
| Welding and Fabrication Quality |
14% |
Weld consistency, distortion control, joint design, heat management, and workmanship on visible and concealed areas. |
Look for qualified welding procedures, trained welders, controlled shielding gas, clean joint preparation, visual inspection records, and stainless-compatible fabrication practices. AWS D1.6 is a relevant reference for structural stainless steel welding where applicable. |
1–5 |
| Surface Finish and Aesthetic Control |
10% |
Consistency of mirror, satin, brushed, bead-blasted, textured, or custom finishes across welded and non-welded areas. |
Require approved finish samples, defined surface-finish specifications, uniform grain direction where relevant, and a documented process for removing heat tint and visible fabrication marks. |
1–5 |
| Corrosion Protection Process |
10% |
Cleaning, pickling, passivation, contamination prevention, drainage design, and protection during transport and installation. |
For suitable projects, request procedures or records for stainless-steel cleaning and passivation, with ASTM A967/A967M used as a recognized reference where applicable. Avoid carbon-steel contamination during fabrication and storage. |
1–5 |
| Quality Management System |
8% |
Inspection planning, nonconformance control, corrective actions, document control, and final-release procedures. |
A functioning quality-management system aligned with ISO 9001 principles is valuable. Ask for inspection and test plans, dimensional reports, weld inspection records, and final acceptance documentation. |
1–5 |
| Design and Customization Capability |
7% |
Ability to convert concepts into shop drawings, 3D models, prototypes, fabrication details, and installation documents. |
Evaluate design revision control, tolerance management, scale-model or sample capability, constructability reviews, and the clarity of approved drawings before production. |
1–5 |
| Testing and Final Inspection |
6% |
Dimensional accuracy, weld appearance, surface condition, fit-up, drainage, hardware, and packing-list verification. |
Require documented pre-shipment inspection, photographs, dimensional checks against approved drawings, punch-list closure, and client approval before dispatch. |
1–5 |
| Packaging and Logistics Planning |
4% |
Protection against scratching, moisture, galvanic contamination, deformation, and incorrect assembly during shipment. |
Packaging should use non-contaminating protective materials, clear section numbering, lifting points, moisture control where needed, and an installation-oriented packing list. |
1–5 |
| Installation and After-Sales Support |
3% |
Availability of installation manuals, method statements, technical responses, spare-part guidance, and maintenance recommendations. |
Prefer suppliers that provide site-specific installation information, recommended cleaning intervals, approved cleaning methods, and a clear process for handling defects or damage. |
1–5 |