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Carbon Steel Angle is manufactured to provide excellent structural strength, reliable weldability, and dependable load-bearing performance. Its L-shaped profile makes it an ideal choice for structural frameworks, support systems, and general fabrication requiring strength and dimensional stability.
Widely used in steel structures, construction projects, equipment frames, support brackets, towers, and industrial fabrication requiring durable and cost-effective structural steel sections.
Carbon steel angle bar (hot rolled structural angle steel, equal angle steel section, unequal angle bar profile, A36 L-shaped steel beam, and heavy-duty galvanized structural angle) is manufactured through continuous hot rolling or precision cold bending to form an orthogonal 90-degree L-shaped cross section. Engineered for transmission towers, industrial steel frameworks, equipment mounting brackets, building trusses, ship framing, and highway guardrail posts, carbon steel angle bar offers exceptional torsional rigidity, high load-bearing capacity along two perpendicular axes, ease of welding/bolting, and cost-effective material efficiency.
At XQJ Metal, we operate specialized structural steel section mills, automated CNC angle punching and shearing lines, and heavy hot-dip galvanizing kettles to produce top-tier carbon steel angle bar products conforming strictly to global engineering standards, including ASTM A36 (standard specification for carbon structural steel), ASTM A6, EN 10025 (S235JR / S275JR / S355JR / S355J2), JIS G3101 (SS400 / SM490), and GB/T 706 specifications. We supply complete side dimensions from 20mm to 200mm (3/4 inch to 8 inches), wall thicknesses from 3mm to 20mm, standard lengths of 6m, 9m, and 12m, and custom pre-punched cut profiles in black mill finish, shot-blasted (Sa 2.5), red primer coated, or heavy hot-dip galvanized finishes.
| Angle Bar Profile Category | Standard Designation & Steel Grade | Side Dimension Range (A x B mm) | Thickness Range (t mm) | Yield Strength (MPa) | Primary Engineering Applications |
| Equal Leg Angle Bar (等边角钢) | ASTM A36 / GB Q235B / EN S235JR / JIS SS400 | 20x20mm to 200x200mm (3/4″ to 8″) | 3.0mm to 20.0mm | ≥ 250 MPa | Power transmission towers, building frameworks, warehouse shelving & general welding frames |
| Equal Leg High-Strength Angle | GB Q355B/Q355D / EN S355JR / ASTM A572 Gr.50 | 50x50mm to 200x200mm | 4.0mm to 20.0mm | ≥ 355 MPa | Heavy industrial plant structures, crane booms, bridge bracing & mining support trusses |
| Unequal Leg Angle Bar (不等边角钢) | ASTM A36 / GB Q235B / Q355B / EN S275JR | 25x16mm to 200x125mm | 3.0mm to 18.0mm | ≥ 250 to 355 MPa | Asymmetrical load connections, ship hull stiffeners, vehicle chassis & machine frame corners |
| Hot-Dip Galvanized Angle Bar | ASTM A123 / ISO 1461 Coating Compliance | 25x25mm to 200x200mm | 3.0mm to 20.0mm | Depends on Base Metal | Outdoor substation structures, solar mounting posts, marine piers & coastal infrastructure |
Selecting between equal leg and unequal leg carbon steel angle bar depends on structural symmetry, axis loading direction, and framing clearance constraints:
To support rapid field erection and bolt-together assembly, XQJ Metal delivers advanced secondary processing services for carbon steel angle bar shipments:
Our robust carbon steel angle bar sections serve as foundational load-bearing elements across major global construction and manufacturing sectors:
To ensure total compliance with international structural safety standards, XQJ Metal enforces rigorous Quality Assurance (QA) testing on every carbon steel angle bar production batch:
Q1: What is the main difference between ASTM A36 and Q355B carbon steel angle bar?
A: ASTM A36 is a standard American low-carbon steel with a minimum yield strength of 250 MPa (36 ksi), offering excellent weldability and formability. Q355B (equivalent to EN S355JR) is a high-strength low-alloy steel with a yield strength of 355 MPa, allowing structural designs to carry heavier loads with thinner material cross-sections.
Q2: Can XQJ Metal supply pre-galvanized and pre-punched carbon steel angle bars for transmission towers?
A: Yes, we specialize in complete fabrication for tower projects, providing CNC hole punching, edge notching, stamping component marks, and hot-dip galvanizing per ASTM A123 to deliver ready-to-assemble structural angles.
To request real-time FOB/CIF spot pricing, structural section property tables, or CAD fabrication drawings for carbon steel angle bar, Contact Our Steel Engineering Team today.
Our materials support a wide range of construction and infrastructure projects
Equal angles have two legs of the same width, while unequal angles feature different leg dimensions to meet specific structural and engineering requirements. The appropriate type depends on the load distribution, connection method, and project design.
Yes. Carbon Steel Angles can be supplied with hot-dip galvanized finishes to improve corrosion resistance and extend service life in outdoor construction, industrial facilities, and infrastructure projects.
The appropriate angle size depends on the required load capacity, connection method, span, and project specifications. Our engineering team can recommend suitable dimensions, thicknesses, and material grades based on your structural requirements.
It offers excellent resistance to seawater corrosion and maintains strength in humid and salt-rich conditions.
No. Strength is achieved through strain hardening rather than heat treatment.
Yes. It provides excellent weldability for structural fabrication.
Yes, it is commonly applied in tanks and pressure equipment.
Yes. It provides higher strength compared with most non-heat-treated aluminum alloys.
Yes. Thickness, width and temper can be adjusted based on project demand.
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