
Round Billet 100-500mm ASTM A36
Our Round Billet product line offers versatile carbon steel billets manufactured according
Q345 Angle Steel 50x50mm is a high-performance low-alloy structural steel profile, engineered to deliver superior strength and versatility for medium to heavy-duty construction, industrial, and engineering projects. With its robust 50x50mm equal-leg design and optimized alloy composition, this angle steel provides exceptional load-bearing capacity, making it an ideal choice for applications requiring enhanced structural integrity without excessive weight.


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Product details
This parameter table comprehensively presents the essential technical details of Q235 Angle Steel 40x40mm, helping users understand its characteristics and make informed decisions for different application scenarios.
| Parameter | Value/Description | Unit | Remarks |
|---|---|---|---|
| Material | Q235 (Mild Carbon Structural Steel) | — | Chemical Composition: C ≤0.22%, Si ≤0.35%, Mn ≤1.40%, P ≤0.045%, S ≤0.050% |
| Section Size | 40×40 | mm | Equal-leg angle, both legs are 40mm |
| Thickness Options | 3mm, 4mm, 5mm, 6mm | mm | Commonly available thicknesses |
| Weight per Meter | 1.852 (for 3mm), 2.422 (for 4mm), 2.976 (for 5mm), 3.500 (for 6mm) | kg/m | Varies depending on the thickness |
| Length Range | 3000 – 9000 (Customizable) | mm | Usually available in standard lengths within this range and can be cut to specific lengths as required |
| Cross-Sectional Area | 2.359 (for 3mm), 3.086 (for 4mm), 3.791 (for 5mm), 4.475 (for 6mm) | cm² | Different values based on thickness |
| Yield Strength (Minimum) | ≥235 | MPa | Measured at room temperature |
| Tensile Strength | 375 – 500 | MPa | Range at room temperature |
| Elongation (δ5 Minimum) | ≥26 | % | At room temperature |
| Impact Toughness (Average) | ≥27 | J (for longitudinal specimens) | Under normal temperature impact testing conditions |
| Manufacturing Standard | GB/T 700 – 2006 | — | Complies with the relevant Chinese national standard for carbon structural steels |
| Surface Treatment Options | Mill finish (black), Paint coating, Galvanizing | — | Mill finish is the natural state; paint coating for basic protection; galvanizing for enhanced corrosion resistance |
| Typical Applications | Structural frameworks in light to medium-duty buildings like small warehouses, supports for shelves, racks and partitions, bracing in fencing and light machinery frames | — | Suitable for various light to medium load-bearing and structural purposes |
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