Product Overview
Carbon steel angle bars are L-shaped structural steel profiles widely used in construction, machinery fabrication, transmission towers, and general engineering applications. As one of the most versatile and cost-effective structural steel products, angle bars provide excellent strength-to-weight ratio, easy fabrication, and reliable load-bearing performance. Huaxia-Steel supplies both equal angle bars (equal leg lengths) and unequal angle bars (different leg lengths) in a comprehensive range of sizes and grades, manufactured to international standards including ASTM, EN, JIS, and GB.
Our carbon steel angle bars are produced by leading Chinese mills using high-quality continuous casting billets, ensuring consistent chemistry, uniform dimensions, and excellent surface finish. Every shipment is accompanied by a mill test certificate (EN 10204 3.1/3.2) documenting actual chemical composition and mechanical properties.
Specifications: Dimensions & Weights
Equal Angle Bars (Standard Sizes)
| Size (mm) | Thickness (mm) | Weight (kg/m) | Standard Length |
|---|---|---|---|
| 25 × 25 | 3-4 | 1.12-1.46 | 6m / 12m |
| 30 × 30 | 3-4 | 1.36-1.78 | 6m / 12m |
| 40 × 40 | 3-5 | 1.85-3.03 | 6m / 12m |
| 50 × 50 | 4-6 | 3.05-4.47 | 6m / 12m |
| 63 × 63 | 4-8 | 3.90-7.55 | 6m / 12m |
| 75 × 75 | 5-10 | 5.80-11.30 | 6m / 12m |
| 90 × 90 | 6-12 | 8.30-16.20 | 6m / 12m |
| 100 × 100 | 6-14 | 9.27-20.60 | 6m / 12m |
| 125 × 125 | 8-14 | 15.40-26.40 | 6m / 12m |
| 150 × 150 | 10-18 | 22.70-40.10 | 6m / 12m |
Unequal Angle Bars (Selected Sizes)
| Size (mm) | Thickness (mm) | Weight (kg/m) |
|---|---|---|
| 75 × 50 | 5-8 | 4.79-7.55 |
| 90 × 56 | 5-8 | 5.66-8.90 |
| 100 × 63 | 6-10 | 7.55-12.14 |
| 125 × 80 | 7-12 | 11.07-18.56 |
| 160 × 100 | 10-16 | 19.70-30.84 |
| 200 × 125 | 12-18 | 29.70-43.58 |
Dimensional Tolerances
| Parameter | Tolerance |
|---|---|
| Leg length (≤50mm) | ±0.8 mm |
| Leg length (50-100mm) | ±1.2 mm |
| Leg length (100-200mm) | ±1.8 mm |
| Thickness (≤5mm) | ±0.4 mm |
| Thickness (5-10mm) | ±0.5 mm |
| Thickness (>10mm) | ±0.7 mm |
| Straightness | ≤0.4% of length |
| Length | +50mm / 0mm |
Available Carbon Steel Grades
| Grade | Standard | Yield Strength (MPa) | Tensile Strength (MPa) | Typical Application |
|---|---|---|---|---|
| Q235B | GB/T 700 | 235 | 370-500 | General construction, fabrication |
| Q345B | GB/T 1591 | 345 | 470-630 | Heavy structures, bridges |
| A36 | ASTM A36 | 250 | 400-550 | Structural, machinery |
| A572 Gr 50 | ASTM A572 | 345 | 450+ | High-strength applications |
| S235JR | EN 10025-2 | 235 | 360-510 | European structural projects |
| S355JR | EN 10025-2 | 355 | 470-630 | Heavy-duty structures |
| SS400 | JIS G 3101 | 245 | 400-510 | General structural (Japan) |
Manufacturing Standards
| Standard | Scope |
|---|---|
| GB/T 706-2016 | Hot-rolled section steel — Chinese standard |
| ASTM A6/A6M | General requirements for rolled structural steel |
| EN 10056-1/2 | Structural steel equal/unequal angles |
| JIS G 3192 | Dimensions, mass and permissible variations of hot-rolled sections |
Applications
- Construction: Building frames, roof trusses, brackets, support beams, and stair stringers
- Transmission & Telecom: Power transmission towers, communication towers, antenna mounts
- Machinery & Equipment: Machine frames, conveyor supports, equipment brackets
- Infrastructure: Bridge components, railings, highway sign structures
- Shipbuilding: Stiffeners, brackets, structural reinforcement
- Racking & Shelving: Warehouse storage systems, display racks
Quality Assurance
Every batch of carbon steel angle bars undergoes rigorous quality control:
- Chemical composition: Spectrometer verification per heat number
- Mechanical testing: Tensile, yield, and elongation tests per ASTM A370
- Dimensional inspection: 100% visual + sample measurement per ISO 2859-1
- Surface inspection: Visual + magnetic particle testing on request
- Documentation: EN 10204 3.1 MTC standard; 3.2 available with third-party inspection
- Third-party inspection: SGS, BV, TUV, or CCIC available upon request
Packaging & Shipping
- Bundling: Angles bundled with steel straps (4-6 straps per bundle), weight per bundle 2-5 tons
- Protection: VCI anti-rust paper or plastic film wrap for sea freight; wooden pallets available for small sizes
- Marking: Each bundle tagged with heat number, grade, size, and quantity
- Container loading: Standard 20ft container holds ~24-26 MT; 40ft container holds ~26-28 MT
- Shipping options: FOB, CIF, DAP — we accommodate all Incoterms 2020
Why Choose Huaxia-Steel?
As a direct factory supplier, Huaxia-Steel offers competitive pricing, flexible order quantities (minimum 5 MT), and reliable delivery schedules. Our experienced quality team ensures every shipment meets your specifications, and our trade specialists handle all export documentation for smooth customs clearance. With 20+ years of steel export experience, we serve customers in 50+ countries worldwide.
Request a quote today — send us your specification (size, grade, quantity, destination port) and receive a detailed quotation within 24 hours.
