Angle Steel Tower Components Hot-dip Galvanization Test before Packagement
The following pictures show the zinc layer thickness test of the three-leg angle steel tower after galvanizing. We will strictly inspect and test each batch of galvanized products according to ASTM A123 standards to ensure that the zinc layer thickness meets the quality requirements.、
ASTM A123/A123M: Specifies requirements for galvanized coatings on steel products. Key parameters include:
Minimum Average Thickness: Varies with steel thickness:
≥6.35 mm (1/4 inch): 100 µm (3.9 mils) average, 85 µm (3.4 mils) minimum local.
<6.35 mm: 50 µm (2.0 mils) average, 45 µm (1.7 mils) minimum local.
Sampling: Test 3 articles per lot, with 3 measurements per article (9 total).