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American Standard ASTM A36 Hot Rolled Steel U Channel
| Item | Specification |
| Standard | ASTM A36 / ASTM A6 |
| Material | Carbon Structural Steel (Low Carbon Steel) |
| Yield Strength | ≥ 250 MPa (36 ksi) |
| Tensile Strength | 400 – 550 MPa |
| Manufacturing Process | Hot Rolled (HR) |
| Property | Metric (SI) | Imperial (US) |
| Yield Strength (min) | ≥ 250 MPa | ≥ 36,000 psi |
| Tensile Strength | 400 - 550 MPa | 58,000 - 80,000 psi |
| Elongation (min) | ≥ 20 % (in 200 mm) | ≥ 20 % (in 8 in) |
| Elongation (min) | ≥ 23 % (in 50 mm) | ≥ 23 % (in 2 in) |
| Modulus of Elasticity | 200 GPa | 29,000 ksi |
ASTM A36 American Standard Channels (Standard Channels - C Shape)
| Inches | lbs/ft | d (mm) | b (mm) | tw (mm) | tf (mm) |
| C3 x 3.5 | 3.5 | 76.2 | 35.8 | 4.3 | 6.9 |
| C3 x 4.1 | 4.1 | 76.2 | 35.8 | 4.3 | 6.9 |
| C4 x 5.4 | 5.4 | 101.6 | 40.2 | 4.7 | 7.5 |
| C5 x 6.7 | 6.7 | 127 | 44.5 | 4.8 | 8.1 |
| C6 x 8.2 | 8.2 | 152.4 | 48.8 | 5.1 | 8.7 |
| C8 x 11.5 | 11.5 | 203.2 | 57.4 | 5.6 | 9.9 |
| C10 x 15.3 | 15.3 | 254 | 66 | 6.1 | 11.1 |
| C12 x 20.7 | 20.7 | 304.8 | 74.7 | 7.2 | 12.7 |
| C15 x 33.9 | 33.9 | 381 | 86.4 | 10.2 | 16.5 |
ASTM A36 American Standard Channels (Miscellaneous Channels - MC Shape)
| Inches | lbs/ft | d (mm) | b (mm) | tw (mm) |
| MC6 x 12 | 12 | 152.4 | 63.4 | 7.9 |
| MC8 x 18.7 | 18.7 | 203.2 | 75.6 | 8.9 |
| MC10 x 22 | 22 | 254 | 84.2 | 7.4 |
| MC12 x 31 | 31 | 304.8 | 93.2 | 9.4 |
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Material Standard: ASTM A36 (Standard Specification for Carbon Structural Steel).
Dimensional Standard: ASTM A6 / A6M.
Available Lengths: 20ft (6.1m), 40ft (12.2m), or customized lengths to optimize container loading.
Surface Treatment: Black (Self-color), Primed, or Hot-Dip Galvanized (ASTM A123).
Certification: Full Mill Test Certificate (MTC) provided as per EN 10204 3.1.
Regional Expertise: Focused on the Americas market, with dedicated branches in the United States and Guatemala.
Superior Strength: A36 profiles offer a minimum yield strength of 36,000 psi (250 MPa), providing greater structural efficiency than standard A36 profiles.
Efficient Logistics: Direct door-to-door delivery with optimized sea-going packaging to prevent moisture and rust during transport.
Beams and Columns: Plain timber and boat fabrication elements subject to the effects of certain light to moderate loads.
Support Frames: Frames which hold equipment, piping, materiel, etc.
Crane Rails: Rails for use with travelling cranes of light-to-medium duty.
Bridge Supports: Tiebars or braces for bridges with small spans.
1. Professional Packaging
Safe Packaging: High strength iron strapping with edge protector for protection of flange deformation.
Rust Prevention: Finished product Is wrapped fully in waterproof plastic / woven bags with included internal desiccant pouches for moisture absorption.
Complete traceability: each bundle is tagged with a weather-proof metal tag Heat Number, Grade(Gr.50) and Size.
2.Optimized Shipping
Container Loading:
20GP: Suitable for 5.8m lengths.
40HC: Optimized for 11.8m/12m lengths (Highly recommended for big projects).
Specialized methods: Open-Top containers for easy crane access or Breakbulk for high-volume tonnage.
3. Regional Logistics
Door-to-site: Our USA and Guatemala offices deliver by flatbed directly to your construction site.
Integrity Assurance: Introduction of dunnage (wooden blocks) between bundles to avert bending during stacking and transportation.
Q1: What is ASTM A36 steel?
A: A widely used North American low-carbon structural mild steel, featuring great weldability, formability and durability, serving as universal steel for construction and industrial scenarios.
Q2: Difference between C-channel and MC-channel?
A: Standard C-channels have tapered inner flanges with fixed American standard dimensions. MC (miscellaneous) channels feature customized flange width and web thickness for special framing and stair stringer applications. Both come in ASTM A36 grade.
Q3: Standard dimensions of A36 channels?
A: Governed by ASTM A6 standard, depth ranges from 3-inch (C3) to 15-inch (C15). Size marking rules: depth + weight per foot (e.g., C3×4.1, C8×11.5).
Q4: Is ASTM A36 steel weldable?
A: Yes. It boasts excellent weldability. Common welding methods (SMAW, GMAW, oxyacetylene welding) are applicable, with no extra pre-heating or post-heating required for standard thicknesses.
Q5: Can A36 U-channels be galvanized?
A: Yes. As carbon steel is prone to rust, hot-dip galvanizing (ASTM A123) is the mainstream surface treatment for corrosion resistance in outdoor and marine environments.
Q6: How to read A36 steel MTC?
A: Standard EN 10204 3.1 MTC covers 3 core verifications: 1. Chemical composition (C, Mn, P, S, Si); 2. Mechanical properties: yield strength ≥36 ksi, tensile strength 58–80 ksi, elongation ≥20%; 3. Product traceability via matched heat number.
Q7: Standard export lengths?
A: Besides US standard 20ft/40ft lengths, mainstream export sizes are 5.8m/11.8m for standard container loading. Custom cutting service is also available.
Q8: Common applications of A36 channels?
A: Widely used in building frameworks, lintels, bridge components, highway barriers, truck trailers, mechanical bases, agricultural equipment and solar mounting systems.
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