Introduction
40×40×5 steel angle is an L-shaped structural steel section with equal legs measuring 40 mm × 40 mm and a thickness of 5 mm which made from carbon steel. It is widely used in construction frameworks, structural supports, machinery structures, and metal fabrication projects that require strong and stable angle steel.
| Grade | Q195~Q420 Series | |||
| Standard | AISI, ASTM, BS, DIN, GB, JIS | |||
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Length |
1-12m/pc , can be customized |
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Thickness |
2.9-5.7mm, can be customized |
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| Size | 40*40*5,50*50*6,65*65*5 or as required | |||
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Tolerance |
±1% |
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Surface |
Galvanized, Bare, Black or can be customized |
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| Applications | Electric Tower, Power Tower, Steel Structure | |||
Features
Superior Strength-to-Weight Ratio
Delivers exceptional load-bearing capacity while remaining lightweight, reducing overall project weight and cost.
Easy Fabrication
Compatible with welding, cutting, bending, and drilling, allowing for flexible customization to meet specific project requirements.
corrosion resistance
The black oxide coating enhances corrosion resistance and provides a sleek, industrial appearance, suitable for both structural and decorative applications.
Compliance with International Standards
Meets EN 10056, ASTM A36, and GB/T 706 standards, ensuring global compatibility and reliability for cross-border projects.
Customization Services
To meet different engineering and construction requirements, we provide flexible customization options for steel angle bars.
Custom Length
It can be supplied in standard lengths or cut to specific sizes according to customer requirements.
Material Grade Options
Different carbon steel grades can be provided depending on strength and structural requirements.
Special Processing
Additional services such as cutting, drilling, or basic fabrication can be arranged according to customer needs.
Materials and Chemical Composition
The 40×40×5 black steel angle bar is composed of high-purity carbon steel, with a chemical composition optimized for strength and weldability. The typical composition (per EN 10056/ASTM A36) is as follows:
|
Element |
Carbon (C) |
Manganese (Mn) |
Silicon (Si) |
Phosphorus (P) |
Sulfur (S) |
Iron (Fe) |
|
Content |
0.18-0.25% |
0.60-1.20% |
0.15-0.40% |
≤0.040% |
≤0.040% |
Balance |
This composition ensures the angle bar maintains excellent mechanical properties while being compatible with common welding and fabrication techniques.
Mechanical Properties
The 40×40×5 black steel angle bar delivers outstanding mechanical performance, meeting the rigorous demands of structural and industrial applications. Key properties (tested per ASTM A36 standards) include:
|
Mechanical Property |
Tensile Strength |
Yield Strength |
Elongation |
Hardness (HB) |
Impact Toughness |
|
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Specification |
400-550 MPa |
≥250 MPa |
≥20% |
110-130 |
≥30 J at 20℃ |
FAQs
What standards can 40×40×5 steel angles be produced according to?
Steel angles can be manufactured according to different standards such as ASTM, EN, or GB depending on project and regional requirements.
How are steel angle bars packaged for shipment?
Angle bars are usually bundled with steel straps for secure transportation, and protective measures can be applied based on shipping requirements.
Can steel angles be supplied in large quantities for construction projects?
Yes, steel angles can be produced and supplied in bulk quantities to meet the needs of large construction and infrastructure projects.
Are inspection documents available for the products?
Yes, quality inspection documents such as mill test certificates can be provided to verify material properties and compliance with standards.
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