Thickness Standards

 
MINIMUM AVERAGE COATING AND THICKNESS BY AS/NSZ 4680:2006
Article thickness Local coating thickness (µm) Steel thickness (µm) Average coating mass minimum (µm)
(mm) (µm) (µm) (g/m²)
≤ 1.5 35 45 320
> 1.5 ≤ 3 45 55 390
> 3 ≤ 6 55 70 500
> 6 70 85 600
 
MINIMUM AVERAGE COATING AND THICKNESS BY ASTM A123/A123M – 17
Articel thickness Material Category
Structural Shapes & Plate Strip & Bar Pipe & Tubing Wire
(mm) (µm) (µm) (µm) (µm)
≤ 1.6 45 45 45 35
> 1.6 ≤ 3.2 65 65 45 50
> 3.2 ≤ 4.8 75 75 75 60
> 4.8 ≤ 6.4 75 75 75 65
≥ 6.4 100 75 75 80
≥ 16.0
 100 100 75 80
 
MINIMUM COATING THICKNESS AND MASS ON SAMPLES THAT ARE NOT CENTRIFUGED BS EN ISO 1461:2009
Articel thickness Local coating thickness minimum (µm) Local coating mass minimum (µm) Mean coating thickness minimum (µm) Mean coating mass minimum (µm)
(mm) (µm) (g/m²) (µm) (g/m²)
Steel > 6 70 505 85 610
Steel > 3 ≤ 6 55 395 70 505
Steel ≥ 1.5 ≤ 3 45 325 55 395
Steel ≤ 1.5 35 250 45 325
Castings ≥ 6 70 505 80 575
Castings < 6 60 430 70 505
 
MINIMUM AVERAGE COATING AND THICKNESS BY ASTM A153/153M – 16a
 Class of Material Weight (Mass) of Zinc Coating, oz/ft2 (g/m2) of Surface, Minimum
Average of Speciments Tested Any Individual Specimen
Class A: – Castings – Malleable Iron, Steel 2.00 (610) 1.80 (550)
Class B: – Rolled, Pressed, and Forged articles (excpect those which would include under Classes C and D)
B.1. Thickness ≥ 4.76mm, Length > 381 mm 2.00 (610) 1.80 (550)
B.2. Thicknes < 4.76mm, Length > 381 mm 1.50 (458) 1.25 (381)
B.3. Any thickness, Length ≤ 381 mm 1.30 (397) 1.10 (336)
Class C: Fasteners over > 9,52mm in diameter and similar articles, Washers 4,76 and 6,35mm in thickness 1.25 (610) 1.00 (305)
Mẫu D: Fasteners 9,52mm and under in diameter, rivets, nails and similar articles, Washers under 4.76mm in thickness 1.00 (306) 0.85 (259)
 
MINIMUM COATING THICKNESS AND MASS ON SAMPLES THAT ARE NOT CENTRIFUGED TCVN 5408:2007 (ISO 1461:1999)
Articel thickness Local coating thickness minimum Mean coating minimum
(mm) (g/m²) (µm) (g/m²) (µm)
Steel > 6 505 70 610 85
Steel > 3 ≤ 6 395 55 505 70
Steel ≥ 1.5 ≤ 3 325 45 395 55
Steel ≤ 1.5 250 35 325 45
Castings ≥ 6 505 70 575 80
Castings < 6 430 60 505 70