Hot Rolled Angle Steel - ASTM Certified Mill Direct Supplier
Supplier's customization ability
- Drawing-based customization
- Sample-based customization
- Full customization
Minimum order quantity: 1 Ton
Shipping total: To be negotiated
- Lead time:
- confirmed with the quotation
- Packaging:
- standard export packing
- Samples:
- available on request
Product details
Technical Specifications of Hot Rolled Angle Steel
| Property | Parameter | Description |
|---|---|---|
| Product Name | Hot Rolled Angle Steel | Equal and unequal leg angle steel produced by hot rolling process |
| Material Grade | Q235B / Q345B / SS400 / A36 / S235JR | Multiple international equivalent grades available |
| Standard Compliance | GB/T 706, ASTM A36, EN 10056, JIS G3192 | Conforms to major international structural steel standards |
| Carbon Content (C) | ≤ 0.20% | Based on Q235B; varies by grade per applicable standard |
| Manganese Content (Mn) | 0.30% – 1.60% | Enhances strength and toughness |
| Silicon Content (Si) | ≤ 0.35% | Deoxidizer element improving strength |
| Phosphorus Content (P) | ≤ 0.045% | Controlled to ensure weldability and ductility |
| Sulfur Content (S) | ≤ 0.045% | Minimized to prevent hot shortness |
| Tensile Strength | 370 – 530 MPa | Per GB/T 700 for Q235B; 400–550 MPa for Q345B |
| Yield Strength | ≥ 235 MPa (Q235B) / ≥ 345 MPa (Q345B) | Minimum values at nominal thickness ≤ 16 mm |
| Elongation | ≥ 26% (Q235B) / ≥ 22% (Q345B) | Measured on gauge length of 5.65√So |
| Size Range – Equal Angle | 20×20×3 mm – 200×200×24 mm | Leg width × leg width × thickness; custom sizes available |
| Size Range – Unequal Angle | 25×16×3 mm – 200×125×18 mm | Long leg × short leg × thickness per GB/T 706 |
| Length | 6,000 – 12,000 mm | Standard mill lengths; cut-to-length service available |
| Surface Finish | Black / Pickled & Oiled / Galvanized | Hot rolled mill finish as default; coating on request |
| Application | Construction, bridges, towers, machinery frames, shipbuilding | Widely used in structural and fabrication projects |
| Certification | ISO 9001, SGS, BV, Mill Test Certificate (EN 10204 3.1) | Third-party inspection and MTC provided per shipment |
| Packaging | Bundled with steel strips, waterproof paper wrapped | Seaworthy packaging suitable for container or bulk vessel |
| MOQ | 25 Metric Tons | Smaller quantities negotiable for trial orders |
Hot Rolled Angle Steel - ASTM Certified Mill Direct Supplier
Hot rolled angle steel is one of the most versatile structural profiles in modern construction and industrial fabrication, valued for its exceptional load-bearing capacity and cost-effective performance. Produced through high-temperature rolling processes at temperatures exceeding 1,100°C, this L-shaped steel section delivers superior mechanical properties ideal for frameworks, bracing systems, and support structures. As a mill-direct supplier with ASTM-certified production capabilities, we provide hot rolled angle steel in a comprehensive range of sizes—from 20×20mm to 200×200mm—with consistent dimensional accuracy and reliable material traceability. Whether you require equal-leg or unequal-leg configurations for structural engineering, transmission towers, shipbuilding, or machinery manufacturing, our facility maintains ready stock and custom rolling capacity to fulfill orders of any scale with competitive lead times.
What is Hot Rolled Angle Steel?
Hot rolled angle steel is a structural steel profile with an L-shaped cross-section formed by rolling heated steel billets through precision mill stands. The hot rolling process—conducted above the steel's recrystallization temperature of approximately 920°C—produces a product with a characteristic mill scale surface finish and favorable grain structure. Available in equal-leg configurations (e.g., 50×50×5mm) and unequal-leg configurations (e.g., 75×50×6mm), this profile serves critical roles in structural connections, frame assemblies, brackets, and reinforcement applications across construction, infrastructure, and heavy industrial sectors.

Hot Rolled Angle Steel Technical Specifications
Our angle steel products are manufactured in strict compliance with international standards, ensuring consistent quality across every shipment. Below are the key technical parameters:

- Standards: ASTM A36, ASTM A572 Gr.50, EN 10056, GB/T 706
- Yield Strength: 250 MPa minimum (A36) / 345 MPa minimum (A572 Gr.50)
- Tensile Strength: 400–550 MPa (A36) / 450 MPa minimum (A572 Gr.50)
- Elongation: ≥20% (A36, 200mm gauge length)
- Leg Size Range: 20×20mm to 200×200mm (equal leg); 25×16mm to 200×125mm (unequal leg)
- Thickness Range: 3mm to 24mm
- Length: 6m, 9m, 12m standard; custom lengths available
- Surface Finish: Black (mill scale), galvanized, or painted per customer specification
- Density: 7.85 g/cm³ at 20°C
- Carbon Content: ≤0.26% (A36) ensuring excellent weldability
Each batch ships with mill test certificates (MTC) per EN 10204 3.1, documenting chemical composition, mechanical test results, and dimensional inspection data for full material traceability.
Key Applications of Hot Rolled Angle Iron
The structural versatility of hot rolled angle steel finds extensive application across diverse industries. In building construction, it forms essential components in steel frameworks, roof trusses, and column bracing systems. Infrastructure projects rely on angle steel for bridge components, transmission tower assemblies, and highway guardrail supports. In industrial manufacturing, it serves as machine frames, equipment mounting brackets, and conveyor support structures. The product also plays vital roles in shipbuilding for hull stiffeners and deck framing, as well as in warehouse and logistics facilities for racking systems and mezzanine platforms.

Get a Competitive Quote for Hot Rolled Angle Steel
Partner with a trusted mill-direct supplier to secure premium-grade hot rolled angle steel at cost-effective rates. We offer flexible order quantities, rigorous quality assurance, and reliable global shipping to meet your project timeline and budget requirements.
- 24/7 customer support available
- Free samples for quality evaluation
- Competitive pricing for bulk orders
- Professional technical consultation
Contact us today to get your free quote within 24 hours!
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Factory Introduction
Hongji Profiles Co., Ltd. is a professional manufacturer and supplier specializing in the R&D, production and sales of high-quality steel profiles. With years of experience in the metallurgical industry, we have earned a solid reputation for reliability, precision and customer-centric service, providing global clients with premium steel profile solutions for diverse industrial and architectural needs.
Our core business covers a full range of steel profiles, including angle steel, channel steel, I-beams, H-beams, C-section steel, Z-section steel, flat steel and custom special steel profiles. These products are widely applied in building structures, bridges, transmission towers, industrial machinery, automotive components and shipping. We strictly control material selection, adopting high-quality steel grades such as S235JR, S355JR, SS400, A36 and Q355 series to ensure excellent mechanical properties, durability and corrosion resistance.
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FAQ
Supplier's customization ability
- Drawing-based customization
- Sample-based customization
- Full customization
Minimum order quantity: 1 Ton
Shipping total: To be negotiated
- Lead time:
- confirmed with the quotation
- Packaging:
- standard export packing
- Samples:
- available on request