Galvanized Cross-arms
- Product Name:
- Galvanized Cross-arms
- Model Number:
- U Channel 100mmx50mmx50mmx5mmx2250mm
- Material:
- Steel
- Surface:
- Hot-dip galvanizing
Description
Galvanized Cross-arms
Galvanized Cross-arms, also known as I-beams, are a type of structural steel used in various structures and engineering projects.These I-beams are crucial components in various structures, providing strength and stability, and ensuring the safe and efficient operation of the structure. They are designed to withstand the environmental conditions they are exposed to, and are rigorously tested to ensure they meet the required standards.
1.Material: This type of steel is made from hot-rolled steel that has been galvanized, or coated in a layer of zinc, to provide protection against rust and corrosion.
2.Structure: I-beams have an I or H-shaped cross-section. The horizontal elements of the I are called flanges, and the vertical element is known as the "web".
3.Usage: I-beams are most commonly used by original equipment manufacturers (OEM) in the construction of machines and equipment, lifts and hoists, maritime platforms, overhead cranes and monorails.
Specification
| Model number | Dimension (mm) |
Theoretical weight (kg/m) |
||
| h | b | d | ||
| 10 | 100 | 68 | 4.5 | 11.261 |
| 12* | 120 | 74 | 5 | 13.987 |
| 12.6 | 126 | 74 | 5 | 14.223 |
| 14 | 140 | 80 | 5.5 | 16.89 |
| 16 | 160 | 88 | 6 | 20.513 |
| 18 | 180 | 94 | 6.5 | 24.143 |
| 20a | 200 | 100 | 7 | 27.929 |
| 20b | 200 | 102 | 9 | 31.069 |
| 22a | 220 | 110 | 7.5 | 33.07 |
| 22b | 220 | 112 | 9.5 | 36.524 |
| 24a* | 240 | 116 | 8 | 37.477 |
| 24b* | 240 | 118 | 10 | 41.245 |
| 25a | 250 | 116 | 8 | 38.105 |
| 25b | 250 | 118 | 10 | 42.03 |
| 27a* | 270 | 122 | 8.5 | 42.825 |
| 27b* | 270 | 124 | 10.5 | 47.084 |
| 28a | 280 | 122 | 8.5 | 43.492 |
| 28b | 280 | 124 | 10.5 | 47.888 |
| 30a* | 300 | 126 | 9 | 48.084 |
| 30b* | 300 | 128 | 11 | 52.794 |
| 30c* | 300 | 130 | 13 | 57.504 |
| 32a | 320 | 130 | 9.5 | 52.717 |
| 32b | 320 | 132 | 11.5 | 57.741 |
| 32c | 320 | 134 | 13.5 | 62.765 |
| 36a | 360 | 136 | 10 | 60.037 |
| 36b | 360 | 138 | 12 | 65.689 |
| 36c | 360 | 140 | 14 | 71.341 |
| 40a | 400 | 142 | 10.5 | 67.598 |
| 40b | 400 | 144 | 12.5 | 73.878 |
| 40c | 400 | 146 | 14.5 | 80.158 |
| 45a | 450 | 150 | 11.5 | 80.42 |
| 45b | 450 | 152 | 13.5 | 87.485 |
| 45c | 450 | 154 | 15.5 | 94.55 |
| 50a | 500 | 158 | 12 | 93.654 |
| 50b | 500 | 160 | 14 | 101.504 |
| 50c | 500 | 162 | 16 | 109.354 |
| 55a* | 550 | 166 | 12.5 | 105.355 |
| 55b* | 550 | 168 | 14.5 | 113.97 |
| 55c* | 550 | 170 | 16.5 | 122.605 |
| 56a | 560 | 166 | 12.5 | 106.316 |
| 56b | 560 | 168 | 14.5 | 115.108 |
| 56c | 560 | 170 | 16.5 | 123.9 |
| 63a | 630 | 176 | 13 | 121.407 |
| 63b | 630 | 178 | 15 | 131.298 |
| 63c | 630 | 180 | 17 | 141.189 |
Advantage
Dual-layer anti-corrosion protection: Hot-dip galvanizing creates a metallurgical bond layer of zinc-iron alloy (zinc coating thickness: 55–120 μm), providing both physical barrier protection and sacrificial anodic cathodic protection; if the steel surface is scratched, the zinc corrodes preferentially, automatically protecting the base material from rusting.
Suitable for harsh operating conditions: Withstands coastal salt spray, industrial acid rain, high humidity, frost, and intense UV exposure; service life is 30–50 years in standard suburban environments and over 25 years in highly corrosive coastal areas—far superior to painted steel or wooden crossarms.
Eliminates common issues associated with wood, such as rotting, insect infestation, and cracking; completely avoids the risks of moisture-induced breakage and subsequent short-circuit fires associated with wooden crossarms.
The base material is Q235/Q355 national standard carbon steel, offering outstanding flexural, tensile, and bending strength; load-bearing capacity far exceeds that of fiberglass (FRP) or wooden crossarms, stably supporting the weight of conductors, insulators, and hardware fittings.
Resistant to strong winds, ice accumulation, and conductor galloping; resists deformation and breakage in mountainous or frigid, snowy regions, ensuring the structural stability of overhead power transmission/distribution and communication lines while reducing outages caused by line failures.
Superior impact resistance compared to composite crossarms; less prone to damage or failure from knocks during construction and hoisting, offering greater tolerance for handling during field operations and maintenance.
Low initial investment with virtually no maintenance required later: eliminates the need for repeated painting or anti-corrosion refurbishment, significantly saving on annual labor and material costs for rust removal and upkeep; requires infrequent replacement, with a total lifecycle cost only one-third to one-half that of painted steel crossarms.
Reduces losses associated with emergency repairs and outage compensation caused by crossarm corrosion or breakage; meets the cost-reduction needs of power grid and telecommunications infrastructure projects. IV. Easy Installation, Customizable, and High Construction Efficiency
Factory pre-punching and standardized dimensions eliminate the need for on-site drilling or anti-corrosion treatment; components are ready for bolted assembly upon delivery, significantly shortening the construction period for poles and towers.
Flexible customization: Length, hole spacing, single/double cross-arm configurations, and tension/suspension structures can be fabricated to meet specific requirements, accommodating various pole types and span needs for 10kV+ high-voltage distribution and fiber-optic communication lines.
Precise dimensional tolerances ensure high compatibility with standard accessories for concrete and steel-pipe poles, facilitating seamless on-site installation.
Zinc is a naturally eco-friendly metal, and the steel is 100% recyclable and remeltable; disposal creates no solid waste pollution, aligning with green infrastructure standards. The galvanizing process involves no release of toxic or hazardous substances.
Stable electrical conductivity ensures superior grounding performance compared to fiberglass (FRP) insulating cross-arms; reliable discharge of lightning currents enhances the line's overall lightning protection safety.
The galvanized surface coating is uniform and smooth, resisting chalking or peeling during long-term outdoor use, resulting in a neat and consistent appearance.
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FAQs
01. Manufacturer Offering Competitive Pricing and High Quality.
We are a direct-sales manufacturer offering both competitive pricing and high-quality products, helping you gain a foothold in the market—specifically in Wenzhou, Zhejiang Province, China. You are warmly invited to visit our company.
02. OEM/ODM Services.
We are a manufacturer backed by an exceptional and highly collaborative team.
03. Standard Payment Terms.
We accept various payment methods, including Telegraphic Transfer (TT) in advance, Letters of Credit (L/C), Western Union, and others. Please feel free to contact us if you have any questions!
04. Warranty Period.
1.5 years. Any quality issues will be resolved through free replacements included with your next order.
05. Free Samples.
Yes, we provide samples of smaller products for your quality assessment; you are only required to cover the courier fees.



