Specifications of transmission tower
Steel | Yield Strength(MPa) | standard | Standard Title | Metallic element | Content |
main ingredient Q345 | 345 for Thickness<=16 | GB/T 1591-2008 (ASTM A572/A572M-15 ,EN10025 S355N) | High strength low alloy structural steels | C | ≤0.20 |
Mn | ≤1.70 | ||||
Si | ≤0.50 | ||||
Accessories Q235 | 235 | GB/T 700-2006 (ASTM A283 Gr.B ,EN10025 S235JR) | Carbon structural steels | ||
P | ≤0.035 | ||||
S | ≤0.035 |
Welding | Standard | Standard Title |
Pole shafts&multi-sided tubular Cross arms&all accessories | AWS D1.1/D1.1M:2010 | Structural Welding Code-Steel |
Welding wire | AWS D1.1/D1.1M:2010 | Structural Welding Code-Steel |
Hot dip galvanizing | Standard | Steel thickness/mm | Mean coating thickness/μm | Metallic element | Content |
Pole shafts,cross arms&bolted on accessories | ASTM A123/A123M-15 AS/NZS 4680 | >6 | 85 | Mn
| 0.25%-0.40%
|
<3-6 | 70 | ||||
1.5-3 | 55 | Cu
| <0.15%
| ||
<1.5 | 55 | ||||
Bolts,nuts&washers | GB/T 5267.3-2008 (ISO 10684-2004) | _____ | ≥ 54 | P | <0.025%
|
Foundation bolts | ASTM A153/A153M-09 | _____ | ≥ 54 | S
| <0.03% |
| Place of Origin: | China (Mainland) |
| Brand name: | MingYuan |
| Color: | User-defined |
| Certificate: | ISO9001:2008 |
| Surface Treatment: | Hot Dip Galvanized |
| Service life: | 20 years |
| Material: | Steel |
| Spare Parts: | Parts for connection or installation |
| Height: | 6-50m |
| Packaging details: | Standard seaworthy package(wooden boxes,cotton ,steel strip and other package)or as buyers' requirement |
Hot-dip galvanized high-voltage steel transmission line tower
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