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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
Fabricated in compliance with ASTM A36, the standard specification for general carbon structural steel, ensuring reliable mechanical properties for structural applications.
Dimensional Standard
Manufactured strictly according to ASTM A6 / A6M dimensional tolerances for consistent sizing and precise fitting.
Available Lengths
Standard lengths include 20ft (6.1m) and 40ft (12.2m). Custom cut lengths are available to maximize container loading efficiency and suit project needs.
Surface Treatment Options
Multiple finishing choices are offered: original black steel finish, primer-coated surface, and hot-dip galvanized treatment that fully meets ASTM A123 anti-corrosion standards.
Quality Certification
We provide official Mill Test Reports (MTC) complying with EN 10204 3.1, covering full material and performance inspection data.
Regional Market Advantages
We focus heavily on the Americas market, with local branches established in the United States and Guatemala to deliver targeted, localized service for regional clients.
Reliable Structural Performance
Featuring a minimum yield strength of 36,000 psi (250 MPa), our A36 steel profiles deliver superior structural efficiency and stable load-bearing capacity compared to ordinary standard steel sections.
Optimized Shipping & Logistics
We support full door-to-door delivery services. Specially optimized marine packaging effectively resists moisture and rust, keeping products in perfect condition throughout ocean transportation.
Beams and Columns
Structural components for timber works and boat construction, engineered to withstand light and moderate loading.
Support Frames
Frame assemblies built to secure equipment, pipework, supplies and other installations.
Crane Rails
Rail systems suitable for light and medium capacity travelling cranes.
Bridge Supports
Tie rods and bracing members applied to short-span bridge structures.
1. Professional Packaging
Safe Binding: High-tensile steel straps and edge protectors prevent flange distortion.
Rust Protection: Waterproof plastic film or woven covering with internal desiccants keeps goods dry.
Traceable Marking: Weatherproof metal labels on each bundle show heat number, Gr.50 grade and product sizes.
2. Optimized Shipping
20GP Container: Fits 5.8m length profiles
40HC Container: Perfect for 11.8m / 12m lengths, recommended for major projects
Alternatives: Open-top containers for crane loading; breakbulk service for high-tonnage orders
3. Regional Logistics
Door-to-site delivery: US & Guatemala branches arrange flatbed delivery to construction sites.
Cargo Stability: Wooden blocks separate bundled steel to prevent bending in transit.
Q1: What is ASTM A36 steel?
A: Popular North American low-carbon structural steel with good weldability and formability for construction and industrial works.
Q2: Difference between C-channel and MC-channel?
A: Standard C-channels have tapered inner flanges with fixed US sizes. MC channels feature adjustable flange and web dimensions for custom frames and stair stringers. ASTM A36 grade available for both.
Q3: Standard ASTM A36 channel sizes?
A: Governed by ASTM A6, depth spans 3” (C3) to 15” (C15). Label format: depth × weight per foot, e.g. C3×4.1, C8×11.5.
Q4: Is ASTM A36 weldable?
A: Yes. SMAW, GMAW and oxyacetylene welding work well. No heat treatment needed for regular thickness.
Q5: Can ASTM A36 U-channels be hot-dip galvanized?
A: Yes. ASTM A123 hot-dip galvanizing provides reliable rust protection for outdoor and coastal environments.
Q6: What information is on the ASTM A36 MTC?
A: EN 10204 3.1 certificate contains chemical composition, mechanical test results and heat number for traceability.
Q7: Standard export lengths?
A: 20ft / 40ft, 5.8m / 11.8m. Custom cutting can be arranged.
Q8: Common uses for ASTM A36 channels?
A: Building frames, lintels, bridge parts, road barriers, truck trailers, machinery supports, agricultural equipment and solar support frames.












