C Channel Steel

C Channel

Strict ASTM US standard, tapered inner flange, match North‑American project requirements
Complete size range covering light‑weight to heavy‑duty load‑bearing specifications
Diverse surface options for indoor, outdoor and coastal corrosive environments
Flexible cutting & machining, suitable for beam, frame and bracket fabrication

Product Overview

C Channel is an American standard hot-rolled structural channel steel designed for North American engineering projects. Featuring a tapered inner flange design, American C Channel is different from European UPN U Channel and follows specific ASTM structural requirements. It is widely used for industrial structures, machinery frames, warehouse systems, municipal engineering and new-energy supporting structures.

Manufactured according to ASTM A6/A6M-22 and ASTM A36-22 standards, American C Channel provides a complete size range from lightweight to heavy-duty structural applications. Available sizes include C3×4.1, C4×5.4, C5×6.7, C6×10.5, C8×8.2, C8×11.5, C8×13.75, C10×15.3, C10×20, C12×20.7, C12×25, C15×33.9, C18×40.8 and C20×50.

The material grades include A36, A572 Gr50, A572 Gr60, A588 and A992, meeting different strength requirements, weather-resistant applications and heavy-load structural conditions. Standard mill lengths are 6m, 9m and 12m, while customized lengths from 3m to 18m and cut-to-length services are available.

C Channel supports multiple surface treatments including hot-rolled black finish, shot blasting, pickling, anti-corrosive coating, hot-dip galvanizing and fire-retardant coating. Additional fabrication services include cutting, drilling, end beveling, welding and component assembly according to customer drawings, making it suitable for structural fabrication and project-based procurement.

Inside Our Shandong Processing Facility

Chemical & Mechanical Property Snapshot

Grade	Standard	C Max %	Mn Max %	Si Max %	P Max %	S Max %	Yield Strength Min (MPa)	Tensile Strength (MPa)	Elongation Min %
A36	ASTM A36/A6M	0.25	1.03	0.40	0.04	0.05	250	400–550	20
A572 Gr50	ASTM A572/A6M	0.23	1.35	0.40	0.04	0.05	345	450–600	18
A572 Gr60	ASTM A572/A6M	0.26	1.35	0.40	0.04	0.05	415	520–680	17
A588	ASTM A588/A6M	0.19	1.25	0.30	0.04	0.05	345	485–605	18
A992	ASTM A992/A6M	0.23	1.35	0.40	0.04	0.05	345	450–600	18

Detailed Technical Specifications

Technical Item	Specification
Product Name	C Channel
Product Type	American Standard Structural Channel Steel
Manufacturing Process	Hot-Rolled
Profile	C-Shaped Channel Section
Design Feature	Tapered Inner Flange
Applicable Standards	ASTM A6/A6M-22, ASTM A36-22, ISO 657-2017
Main Application Market	North American structural projects
Available Sizes	C3×4.1, C4×5.4, C5×6.7, C6×10.5, C8×8.2, C8×11.5, C8×13.75, C10×15.3, C10×20, C12×20.7, C12×25, C15×33.9, C18×40.8, C20×50
Material Grades	A36, A572 Gr50, A572 Gr60, A588, A992
Standard Length	6m / 9m / 12m
Customized Length	3m–18m
Cutting Service	Cut-to-Length / Segment Cutting
Original Surface	Hot-Rolled Black Finish
Surface Treatment	Shot Blasting, Pickling, Anti-Corrosive Paint Coating, Hot-Dip Galvanizing, Fire-Retardant Coating
Galvanizing Coating	Zinc coating 85–275g/㎡
Fabrication Services	End Beveling, Drilling, Cutting, Welding, Component Assembly
Processing Method	According to Customer Drawings
Quality Document	Mill Test Certificate
Verification Content	Chemical Composition and Mechanical Properties
Packing	Seaworthy Export-Grade Packaging
Industrial Application	Secondary Beams, Equipment Base Frames, Crane Rail Supporting Members
Machinery Application	Machine Frames, Conveyor Supports, Mechanical Bracket Parts
Construction Application	Warehouse Steel Frames, Structural Supports
Municipal Application	Pipeline Brackets
New Energy Application	Supporting Structures
MOQ	5 Ton
Payment Terms	T/T, L/C at Sight
Delivery Time	7–15 working days after receiving deposit

Dimension Table

Designation	Height (H) mm	Flange Width (B) mm	Web Thickness (tw) mm	Flange Thickness (tf) mm	Weight kg/m	Section Area cm²
C3×4.1	76.2	35.05	4.32	6.48	6.1	7.8
C4×5.4	101.6	40.64	4.72	6.98	8.0	10.2
C5×6.7	127.0	44.45	4.78	7.37	9.9	12.6
C6×8.2	152.4	48.00	5.08	7.82	12.2	15.5
C6×10.5	152.4	51.31	6.55	9.04	15.6	19.8
C8×11.5	203.2	52.83	5.54	8.41	17.1	21.8
C8×13.75	203.2	54.86	6.28	9.04	20.4	26.0
C10×15.3	254.0	54.86	6.02	9.04	22.7	28.9
C10×20	254.0	59.18	7.82	10.16	29.8	37.9
C12×20.7	304.8	59.44	7.16	10.16	30.8	39.2
C12×25	304.8	63.50	8.89	11.18	37.2	47.4
C15×33.9	381.0	80.52	11.13	13.97	50.4	64.3
C18×40.8	457.2	84.61	11.13	15.24	60.7	77.4
C20×50	508.0	89.41	13.97	16.26	74.4	94.8

Product Comparison Table

Grade	Standard	Equivalent Grade	Material Type	Yield Strength Min (MPa)	Tensile Strength (MPa)	Key Feature	Typical Application
A36	ASTM A36	S235JR / Q235B	Carbon Steel C Channel	250	400–550	General structural grade, good weldability	Building frame, support bracket, general fabrication
A572 Gr50	ASTM A572 Gr50	S355JR / Q355B	HSLA C Channel	345	450–600	High strength low alloy, cost effective	Heavy support, warehouse structure, trailer frames
A572 Gr60	ASTM A572 Gr60	S355NL	HSLA C Channel	415	520–680	Higher yield strength, low temp toughness	Heavy load construction, machinery base
A588	ASTM A588	Q355NH	Weathering Steel C Channel	345	485–650	Atmospheric corrosion resistant, no painting required	Outdoor bridge, outdoor structure, tower frame
A992	ASTM A992	S355J0	Structural C Channel	345	450–620	Originally for wide flange, widely adopted for C channel	Commercial building, metal structure project

App Market

Reliable Steel Coil Solutions For Diverse Industrial Applications

Secondary Steel Beam

Bridge Auxiliary Support Structure

Forklift Fork Blanks

Product Packaging

Secure Export Packaging For Safe Handling And Delivery

FAQs

What is C Channel?

C Channel is an American standard hot-rolled structural channel steel with a tapered inner flange design, mainly used for North American structural projects.

What sizes of C Channel are available?

Available sizes include C3×4.1, C4×5.4, C5×6.7, C6×10.5, C8×8.2, C8×11.5, C8×13.75, C10×15.3, C10×20, C12×20.7, C12×25, C15×33.9, C18×40.8 and C20×50.

What materials are available for C Channel?

Available grades include A36, A572 Gr50, A572 Gr60, A588 and A992.

Can C Channel be customized?

Yes. Custom lengths from 3m to 18m, cutting, drilling, beveling, welding and assembly services are available according to customer requirements.

What applications use C Channel?

C Channel is commonly used for industrial workshops, machinery frames, warehouse steel structures, municipal pipeline brackets and new-energy supporting structures.

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