Product Name | Double Loop Across River Tower |
Voltage Grade | 220kV/330kV |
Raw Material | Steel Q235,345,A36,GR50 |
Surface Treatment | Hot dip galvanized |
Galvanized Thickness | Average Layer Thickness 86um |
Bolts | 4.8;6.8;8.8 |
Certificate | GB/T19001-2016/ISO 9001:2015 |
Lifetime | More than 30 years |
Manufacturing Standard | GB/T2694-2018 |
Galvanizing Standard | ISO1461 |
Raw Material Standards | GB/T700-2006, ISO630-1995, GB/T1591-2018;GB/T706-2016; |
Fastener Standard | GB/T5782-2000. ISO4014-1999 |
Welding Standard | AWS D1.1 |
Item | Thickness of zinc coating |
Standard and requirement | ≧86μm |
Strength of adhesion | Corrosion by CuSo4 |
Zinc coat not be stripped and raised by hammering | 4 times |
Galvanized standard | ISO:1461-2002 |