Jiangsu milky way steel poles co.,ltd |
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40M 12 Sides Galvanized High Mast Pole for Plaza Lighting with Winch
Specifications:
Height | From 20m to 55m |
Suit for | Airport ,seaport,plaza,stadium ,square,highway, |
Shape | Conoid ,Multi-pyramidal,Columniform,polygonal or conical |
Material | Usually Q345B/A572,minimum yield strength>=345n/mm2 |
Lamp power | 20 W- 400 W (HPS/MH) |
Electroshock resistant protective grade | Grade Ⅰ |
The casing anti-corrosion performance | Class Ⅱ |
Working atmosphere of lighting fixture | -35 ℃~+45 ℃ |
Surface treatment | Hot dip galvanized Following ASTM A 123, |
Joint of Poles | Insert mode,innerflange mode,face to face joint mode |
Design of pole | Against earthquake of 8 grade |
Wind Speed | 160 Km/Hour |
Minimum yield strength | 355 mpa |
Minimum ultimate tensile strength | 490 mpa |
Max ultimate tensile strength | 620 mpa |
Production Process | Rew material test → Cuttingj →Molding or bending → |
Packages | Our poles as normal cover by Mat or straw bale at the top and bottom , |
Galvanization
Standard:NFA91121
Average thickness of the galvanization:Not less than 70μm.
Manufacture Tolerance
-Component Length:-25mm to 75mm
-Straightness:2mm/m
-Twisting degree:1°per 3 meters length
-Ovalisation:Maximum is 3%
-The average diameter:+/-0.5%
-Slip length:+/-150mm
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