550kv high voltage steel transmission poles face to face joint mode OEM / ODM accepted
550kv Polygonal Galvanised Overhead Line Electrical Power Steel Pole
Description
Electric steel poles have been a new kind of equipment for erecting power lines in recent years. They are replacing the traditional concrete electric poles step by step.
Material
Applied to the material of general-purpose steel GB/T1591-2008, Q235, Q345, Q420, Q460 used in China.
| China-GB | America-ASTM | Equivalent |
| Q235 | Grade D | SS400,S235JO |
| Q345 | Grade50[345] | S355JR |
| Q420 | Grade60[415] | S420NL |
| Q460 | Grade65[450] | S460NL |
Noemally we use Q345, Q420 or Q460 for electric transmission steel poles.
| 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% |
| Production Process | Raw material test → Cutting →bending →Welding (longitudinal )→Dimension verify →Flange welding →Hole drilling →sample assemble → surface clean→ Galvanization or powder coating, painting →Recalibration →Packages |
Inspection and Testing
The manufactured items will be inspected at the manufacturer’s plant by the Engineering Team appointed by the purchaser. Tests shall be performed in accordance with the relevant standards unless otherwise stated.
Before ffull-scalemanufacture is commenced, 3 (three) samples of each type of pole shall be prepared for testing and approval by the engineer. Production items not meeting the same standard as the initial samples approved by the Engineering Team will be rejected.
We have Lab Test, Workload Test, Steel thickness Test, Galvanization thickness Test, etc.
Delivery
The nearest seaport is Shanghai Port. We normally use 40HQ containers and our Port limit weight for a 40HQ is 26 tons.
FAQ:
1. Port of Loading: Shanghai, China
2. Price term: EXW,FOB,CFR AND CIF.
3. Payment Term: 30%TT in deposit, 70%TT before shipment. Or LC.
4. Delivery: Based on your order quantity. Normally within 15 working days after receiving your deposit.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.