Xi'an Dongmeng Group Co., Ltd. is one of the most reliable manufacturers and suppliers of Galvanized U Channel Steel Supplier | Hot Dip & Pre-Galvanized U Channel Manufacturer in China, also supports customized service. With abundant experience, we warmly welcome you to wholesale cheap products in stock here and get free sample from our factory. For price consultation, contact us.
Galvanized U Channel Steel is a versatile structural steel section featuring a U-shaped profile with parallel flanges and a robust web. Manufactured from high-quality carbon steel and protected by a zinc coating, galvanized U channels provide exceptional corrosion resistance, structural stability, and long-term durability in indoor and outdoor environments.
Compared with painted steel sections, galvanized U channels offer significantly lower maintenance costs and longer service life, making them ideal for infrastructure, industrial buildings, solar support systems, warehouses, transportation facilities, and agricultural structures.
Xi'an Dongmeng Group Co., Ltd supplies a comprehensive range of galvanized U channels available in hot-dip galvanized and pre-galvanized finishes, supporting global engineering, construction, and fabrication projects.
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High Quality
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Advanced Equipment
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Professional Team
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Custom Service
Chemical Composition (%)
| Grade | C | Si | Mn | P | S |
|---|
| Q235 | ≤0.22 | ≤0.35 | ≤1.40 | ≤0.045 | ≤0.045 |
| Q355 | ≤0.24 | ≤0.55 | ≤1.60 | ≤0.035 | ≤0.035 |
| ASTM A36 | ≤0.26 | ≤0.40 | ≤1.20 | ≤0.040 | ≤0.050 |
Mechanical Properties
| Grade | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation (%) |
| Q235 | ≥235 | 370-500 | ≥26 |
| Q355 | ≥355 | 470-630 | ≥21 |
| ASTM A36 | ≥250 | 400-550 | ≥20 |
Zinc Coating Specifications
| Coating Type | Coating Weight |
| Z80 | 80 g/m² |
| Z120 | 120 g/m² |
| Z180 | 180 g/m² |
| Z275 | 275 g/m² |
| HDG | 300-600 g/m² |
Product Specifications
| Web Width | Flange Width | Thickness | Length |
| 40 mm | 20 mm | 1.5-3.0 mm | 1-12 m |
| 50 mm | 25 mm | 1.5-4.0 mm | 1-12 m |
| 75 mm | 40 mm | 2.0-5.0 mm | 1-12 m |
| 100 mm | 50 mm | 2.0-8.0 mm | 1-12 m |
| 120 mm | 60 mm | 3.0-10.0 mm | 1-12 m |
| 150 mm | 75 mm | 3.0-12.0 mm | 1-12 m |
| Custom | Custom | Custom | Available |
Tolerance:
According to ASTM A6, EN 10034, GB/T 706
Galvanized U Channel Weight Chart
The following chart provides the theoretical weight of commonly used galvanized U channel steel sections. Actual weight may vary slightly depending on manufacturing tolerances, steel grade, and zinc coating thickness.
| Size (mm) | Thickness (mm) | Weight (kg/m) | Weight (lbs/ft) |
|---|---|---|---|
| 40 × 20 | 1.5 | 1.15 | 0.77 |
| 40 × 20 | 2.0 | 1.50 | 1.01 |
| 50 × 25 | 1.5 | 1.43 | 0.96 |
| 50 × 25 | 2.0 | 1.88 | 1.26 |
| 50 × 25 | 2.5 | 2.31 | 1.55 |
| 75 × 40 | 2.0 | 3.05 | 2.05 |
| 75 × 40 | 2.5 | 3.78 | 2.54 |
| 75 × 40 | 3.0 | 4.49 | 3.02 |
| 100 × 50 | 2.0 | 4.11 | 2.76 |
| 100 × 50 | 2.5 | 5.08 | 3.41 |
| 100 × 50 | 3.0 | 6.03 | 4.05 |
| 120 × 60 | 2.5 | 6.18 | 4.15 |
| 120 × 60 | 3.0 | 7.35 | 4.94 |
| 120 × 60 | 4.0 | 9.73 | 6.54 |
| 150 × 75 | 3.0 | 9.27 | 6.23 |
| 150 × 75 | 4.0 | 12.29 | 8.26 |
| 150 × 75 | 5.0 | 15.25 | 10.25 |
| 200 × 75 | 4.0 | 14.65 | 9.84 |
| 200 × 75 | 5.0 | 18.15 | 12.19 |
| 250 × 90 | 5.0 | 22.40 | 15.04 |
| 300 × 90 | 6.0 | 31.80 | 21.36 |
Weight Calculation Formula
Theoretical Weight (kg/m) = Sectional Area (mm²) × 0.00785
Where:
0.00785 = Density coefficient of carbon steel
Density of steel = 7.85 g/cm³
Factors Affecting Actual Weight
Zinc coating thickness (Z80, Z120, Z180, Z275, HDG)
Dimensional tolerances
Steel grade
Manufacturing process
Hot-dip galvanizing layer thickness
Available Custom Sizes
Web Width: 40 mm – 300 mm
Flange Width: 20 mm – 100 mm
Thickness: 1.5 mm – 12 mm
Length: 1 m – 12 m
Custom punching, drilling, cutting, and fabrication services are available upon request.
Note: For large infrastructure, solar mounting, and structural engineering projects, Xi'an Dongmeng Group Co., Ltd can provide customized weight calculations and loading analysis according to project drawings.
Physical Properties
| Property | Value |
| Density | 7.85 g/cm³ |
| Melting Point | 1425-1540°C |
| Thermal Conductivity | 50 W/m·K |
| Elastic Modulus | 200 GPa |
Corrosion Resistance Analysis
The zinc coating acts as a sacrificial protective layer that prevents oxidation of the base steel.
Benefits include:
• Long-term outdoor durability
• Excellent atmospheric corrosion resistance
• Reduced maintenance costs
• Enhanced lifespan in humid environments
• Reliable protection for infrastructure projects
Expected service life can exceed 20-50 years depending on coating thickness and environmental conditions.
Fabrication Performance
Galvanized U channels provide excellent fabrication flexibility:
• Cutting
• Punching
• Drilling
• Bending
• Welding
• CNC Processing
Suitable for prefabricated construction and modular structural systems.
Welding Performance Analysis
Galvanized U channel can be welded using common welding methods:
• MIG Welding
• TIG Welding
• Shielded Metal Arc Welding
• Flux Core Welding
Post-weld zinc-rich coating treatment is recommended to restore corrosion protection in welded zones.
Industry Applications
Construction Industry
Applications:
Building frameworks
Roof structures
Wall support systems
Warehouse construction
Benefits:
High strength
Corrosion resistance
Long service life
Fast installation
Solar Energy Industry
Applications:
Solar mounting structures
PV support frames
Ground-mounted solar systems
Benefits:
Weather resistance
Low maintenance
High structural reliability
Infrastructure Projects
Applications:
Bridges
Guardrail systems
Municipal engineering
Utility structures
Benefits:
Long-term durability
Excellent environmental resistance
Reduced lifecycle cost
Industrial Manufacturing
Applications:
Equipment frames
Machine supports
Cable trays
Industrial platforms
Benefits:
Structural stability
Easy fabrication
High load capacity
Agricultural Industry
Applications:
Greenhouses
Livestock facilities
Storage buildings
Irrigation support systems
Benefits:
Moisture resistance
Cost effectiveness
Extended service life
Inspection & Quality Assurance
Xi'an Dongmeng Group Co., Ltd maintains strict quality control throughout production.
Inspection Procedures:
✔ Raw Material Verification
✔ Dimensional Inspection
✔ Thickness Measurement
✔ Zinc Coating Testing
✔ Surface Quality Inspection
✔ Mechanical Property Testing
✔ Packaging Inspection
Third-Party Inspection:
SGS
BV
TÜV
Intertek
Available Upon Request
Material Test Certificate (MTC EN10204 3.1) Available
Why Choose Xi'an Dongmeng Group Co., Ltd
✓ Extensive Export Experience
✓ Complete Steel Product Supply Chain
✓ ASTM / EN / JIS Compliance
✓ Strict Quality Management System
✓ Fast Delivery Schedule
✓ Customized Processing Services
✓ Competitive Factory Direct Pricing
✓ Professional International Sales Team
Contact Us
Xi'an Dongmeng Group Co., Ltd
Professional Galvanized Steel Products Manufacturer & Exporter
Phone / WhatsApp / WeChat:
+8615769214734
Email:
office@dongmjd.com
Contact us today for pricing, technical consultation, samples, and project solutions.
FAQ
What is a galvanized U channel?
A galvanized U channel is a structural steel section with a U-shaped profile that has been coated with zinc to improve corrosion resistance. It is widely used in construction, solar mounting systems, infrastructure projects, industrial equipment, and agricultural structures.
What is the difference between hot-dip galvanized and pre-galvanized U channels?
Hot-dip galvanized U channels are galvanized after fabrication, resulting in a thicker zinc coating and superior corrosion resistance. Pre-galvanized U channels are manufactured from galvanized steel strip before forming and are generally more economical for indoor applications.
What sizes of galvanized U channels are available?
Standard sizes typically range from 40 × 20 mm to 300 × 90 mm, with thicknesses from 1.5 mm to 12 mm. Custom dimensions and lengths can be manufactured according to project requirements.
What is the standard length of galvanized U channel steel?
The most common lengths are 6 meters and 12 meters. However, custom lengths from 1 meter to 12 meters are available based on customer specifications.
What zinc coating options do you provide?
We offer Z80, Z120, Z180, Z275, and heavy-duty hot-dip galvanized coatings up to 600 g/m², depending on the required service environment and project specifications.
Can galvanized U channels be used outdoors?
Yes. Galvanized U channels are specifically designed for outdoor applications. The zinc coating protects the steel from rust and corrosion, providing a service life of more than 20–50 years depending on environmental conditions.
Can galvanized U channel steel be welded?
Yes. Galvanized U channels can be welded using MIG, TIG, or arc welding methods. Proper ventilation and post-weld zinc-rich coating treatment are recommended to maintain corrosion protection.
What industries commonly use galvanized U channels?
Galvanized U channels are widely used in building construction, solar energy systems, infrastructure projects, warehouses, transportation facilities, agricultural buildings, cable support systems, and industrial equipment manufacturing.
What standards do your galvanized U channels comply with?
Our products can be manufactured according to ASTM A36, ASTM A123, ASTM A653, EN 10025, EN 10346, JIS G3101, and GB/T standards based on customer requirements.
How long does galvanized U channel steel last?
The service life depends on coating thickness and environmental conditions. In normal atmospheric environments, hot-dip galvanized U channels can provide corrosion protection for 20 to 50 years or longer.
Can you provide custom fabrication services?
Yes. We offer cutting, punching, drilling, slotting, welding preparation, and customized fabrication services according to engineering drawings and project specifications.
Do you provide Mill Test Certificates (MTC)?
Yes. EN 10204 3.1 Mill Test Certificates, material traceability reports, and quality inspection documents can be supplied with every shipment.
Is third-party inspection available?
Yes. Independent inspections by SGS, BV, TÜV, Intertek, and other internationally recognized agencies can be arranged before shipment.
What is the minimum order quantity (MOQ)?
The MOQ depends on the product size and specification. Standard sizes are available with flexible order quantities, while custom products may require minimum production quantities.
Why choose Xi'an Dongmeng Group Co., Ltd as your galvanized U channel supplier?
We provide factory-direct pricing, strict quality control, international standard compliance, custom processing services, fast delivery, professional export documentation, and global shipping support for infrastructure, construction, and industrial projects worldwide.
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