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American Structural Profiles – ASTM A36 Angle Steel for Construction Frames, Supports & Fabrication
ASTM A36 angle steel is a non alloy steel with a specific maximum thickness under the category of carbon steels that has good mechanical properties, this is a material that is widely used for manufacturing plates bushes, bolts and many other things in the automotive industry. The regular cross-section and accurate dimensions of equal channels make them an indispensable element of frames in buildings, supports in bridges, racks in machinery and workshops in steel-structured buildings. A36 steel angle has good corrosion resistance, and could be sprayed or galvanized to strengthen its rust resistance. It also happy to be cut, welded and processed in other ways to satisfy different structural requirements.
| Product Name | ASTM A36 Angle Steel |
| Standards | ASTM A36 / AISC |
| Material Type | Low Carbon Structural Steel |
| Shape | L-Shaped Angle Steel |
| Leg Length (L) | 25 – 150 mm (1″ – 6″) |
| Thickness (t) | 3 – 16 mm (0.12″ – 0.63″) |
| Length | 6 m / 12 m (customizable) |
| Yield Strength | ≥ 250 MPa |
| Tensile Strength | 400 – 550 MPa |
| Application | Building structures, bridge engineering, machinery and equipment, transportation industry, municipal infrastructure |
| Delivery Time | 7-15 days |
| Payment | T/T30% Advance+70% Balance |
Technical Data
ASTM A36 Angle Steel Chemical Composition
| Steel grade | Carbon, max,% |
Manganese, % |
Phosphorus, max,% |
Sulfur, max,% |
Silicon, % |
|
| A36 | 0.26 | -- | 0.04 | 0.05 | ≤0.40 | |
| NOTE:Copper content is available when your order is specified. | ||||||
ASTM A36 Angle Steel Mechanical Property
| Steel Grade | Tensile strength, ksi[MPa] |
Yield pointmin, ksi[MPa] |
Elongation in 8 in.[200 mm],min,% |
Elongation in 2 in.[50 mm],min,% |
|
| A36 | 58-80 [400-550] | 36[250] | 20.00 | 21 | |
ASTM A36 Angle Steel Size
| Side Length (mm) | Thickness (mm) | Length (m) | Notes |
| 25 × 25 | 3–5 | 6–12 | Small, lightweight angle steel |
| 30 × 30 | 3–6 | 6–12 | For light structural use |
| 40 × 40 | 4–6 | 6–12 | General structural applications |
| 50 × 50 | 4–8 | 6–12 | Medium structural use |
| 63 × 63 | 5–10 | 6–12 | For bridges and building supports |
| 75 × 75 | 5–12 | 6–12 | Heavy structural applications |
| 100 × 100 | 6–16 | 6–12 | Heavy load-bearing structures |
ASTM A36 Angle Steel Dimensions and Tolerances Comparison Table
| Model (Angle Size) | Leg A (mm) | Leg B (mm) | Thickness t (mm) | Length L (m) | Leg Length Tolerance (mm) | Thickness Tolerance (mm) | Angle Squareness Tolerance |
| 25×25×3–5 | 25 | 25 | 3–5 | 6/12 | ±2 | ±0.5 | ≤ 3% of leg length |
| 30×30×3–6 | 30 | 30 | 3–6 | 6/12 | ±2 | ±0.5 | ≤ 3% |
| 40×40×4–6 | 40 | 40 | 4–6 | 6/12 | ±2 | ±0.5 | ≤ 3% |
| 50×50×4–8 | 50 | 50 | 4–8 | 6/12 | ±2 | ±0.5 | ≤ 3% |
| 63×63×5–10 | 63 | 63 | 5–10 | 6/12 | ±3 | ±0.5 | ≤ 3% |
| 75×75×5–12 | 75 | 75 | 5–12 | 6/12 | ±3 | ±0.5 | ≤ 3% |
| 100×100×6–16 | 100 | 100 | 6–16 | 6/12 | ±3 | ±0.5 | ≤ 3% |
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STM A36 Angle Steel Customized Content
| Customization Category | Options Available | Description / Range | Minimum Order Quantity (MOQ) |
| Dimension Customization | Leg Size (A/B), Thickness (t), Length (L) | Leg Size: 25–150 mm; Thickness: 3–16 mm; Length: 6–12 m (custom lengths available upon request) | 20 tons |
| Processing Customization | Cutting, Drilling, Slotting, Welding Prep | Custom holes, slotted holes, bevel cutting, mitre cutting, and fabrication for structural or industrial applications | 20 tons |
| Surface Treatment Customization | Black Surface, Painted / Epoxy Coating, Hot-Dip Galvanizing | Anti-corrosion finishes per project requirement, meeting ASTM A36 & A123 standards | 20 tons |
| Marking & Packaging Customization | Custom Marking, Export Packaging | Markings include grade, dimension, heat number; export-ready bundling with steel straps, padding, and moisture protection | 20 tons |
Structural Construction: Suitable for robust support, stable foundations, and reliable reinforcement in various structural engineering projects.
Steel Structure Fabrication: Suitable for machinery frames, equipment supports, and precision welded steel components.
Industrial Applications: Commonly found in platforms, walkways, pipe supports, conveyors, and heavy-duty storage facilities.
Infrastructure Projects: Components used in the construction of bridges, railings, and various public facilities.
General Engineering: Also ideal for supports, frames, and fixtures, as well as custom metal parts for repair, maintenance, or special engineering projects.
1) Branch Office - Spanish-speaking support, customs clearance assistance, etc.
2) Over 5,000 tons of stock in stock, with a wide variety of sizes
3) Inspected by authoritative organizations such as CCIC, SGS, BV, and TUV, with standard seaworthy packaging
Basic Protection: Each bale is wrapped in a waterproof tarpaulin, and 2-3 packets of desiccant are placed inside each bale, then covered with a heat-sealed waterproof tarpaulin.
Bundling: Use 12-16mm diameter steel straps for bundling, with each bundle weighing 2-3 tons to facilitate the use of lifting equipment at US ports.
Compliance Labeling: Affix bilingual labels (English + Spanish) clearly indicating the material, specifications, customs code, batch number, and test report number.
For large H-beams with a cross-sectional height ≥800mm, the steel surface is coated with industrial anti-rust oil and dried before being packaged in a waterproof tarpaulin.
Stable cooperation with shipping companies such as MSK, MSC, COSCO efficiently logistics service chain, logistics service chain are we to your satisfaction.
We follow the standards of quality management system ISO9001 in all procedure, and have strict control from packaging material purchase to transport vehicle scheduling. This guarantees the H-beams from the factory all the way to the project site, helping you build on a solid foundation for a trouble free project!
1.What sizes are available for A36 angle bars?
Common sizes range from 20×20mm to 200×200mm, with thicknesses from 3mm to 20mm, and custom sizes are available upon request.
2. Can ASTM A36 angle bar be welded?
Yes, it offers excellent weldability with most standard welding methods such as MIG, TIG, and arc welding.
3. Is ASTM A36 suitable for outdoor use?
Yes, but outdoor applications typically require surface treatments such as painting, galvanizing, or anti-rust coatings.
4. Do you offer galvanized A36 angle bars?
Yes, A36 angle bars can be hot-dip galvanized or zinc-coated for corrosion-resistant applications.
5. Can A36 angle bars be cut or customized?
Absolutely—length cutting, drilling, punching, and custom fabrication services are available based on customer drawings.
6. What is the standard length of ASTM A36 angle bar?
Standard lengths are 6m and 12m, while custom lengths (e.g., 8m / 10m) can be produced as required.
7. Do you provide mill test certificates?
Yes, we supply MTC according to EN 10204 3.1 or customer requirements.
Contact Details
Address
Kangsheng development industry zone,
Wuqing district, Tianjin city, China.
Phone
Hours
Monday-Sunday: 24-hour Service
