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C 채널 강철 표준, 규격 및 가격 목록

11-22-2025

1. What is C channel steel?
2. Features of C channel steel
3. C channel steel standards
4. C channel steel specification table
5. Advantages of C channel steel
6. Types of C channel steel
7. Applications of C channel steel
8. Latest C channel steel price update

Today, in the construction industry, C channel steel is considered a highly versatile material thanks to its excellent load-bearing capacity, lightweight structure, and ease of installation. So, what is C channel steel, what are its types and key features? Let’s explore the complete C channel steel specification table and the latest price updates with BMB Steel in the article below!

1. What is C channel steel?

*C channel steel includes the web, two flanges, and edges*

C channel steel, also known as C purlin or C-shaped steel, is a type of structural steel with a cross-section shaped like the letter “C”. Thanks to this special structure, C channel steel is widely used in construction projects, especially in roof framing systems, beams, and purlins, etc.

This type of steel is usually manufactured according to high-strength standards such as G350 – G450 MPa, galvanized with a coating thickness from Z120 to Z275g/m², complying with European and Japanese quality standards.

In terms of structure, C channel steel consists of three main parts: the web, two flanges, and the edges. The web plays the main role in bearing loads and connecting the two flanges. The two flanges extend outward to form the C shape, which helps increase rigidity and load-bearing capacity of the structure. The edges are slightly curved at the ends of the flanges to enhance stability and reduce deformation under mechanical impact.

Read more: Steel structure introduction

2. Features of C channel steel

*C channel steel has a solid structure that provides high rigidity*

C channel steel possesses many outstanding characteristics, making it a top choice in construction projects:

High strength: C channel steel is manufactured from high-strength materials, ensuring the ability to bear heavy loads.
Good load-bearing capacity: Thanks to the C-shaped cross-section design, the load is evenly distributed throughout the entire structure, helping the steel improve its load-bearing performance and reduce the risk of deformation.
Excellent rigidity: The solid structure provides high rigidity, helping to increase the durability and stability of the entire framework.
Corrosion resistance: The surface of the steel is galvanized and treated against rust, helping to improve oxidation resistance and extend the product’s lifespan.

3. C channel steel standards

C channel steel is manufactured according to various international standards. Below is a table of the basic technical specifications of C channel steel according to the two most common standards today: JIS G3302 (Japan) and ASTM A653/A653M (US):

Manufacturing standard

Thickness

(mm)

Width

(mm)

Coating weight

(g/m2)

Tensile strength

(MPa)

JIS G3302

1.0 – 3.5

≥ 40 (± 0.5)

Z100 – Z350

G350, G450, G550

ASTM A653/ A653M

1.0 – 3.5

≥ 40 (± 0.5)

Z100 – Z350

G350, G450, G550

The above specifications show important factors such as thickness, width, zinc coating layer, and tensile strength, helping users easily select the appropriate type of C channel steel that meets the technical requirements of each construction project.

Read more: Standard industrial factory construction process

4. C channel steel specification table

Specification (mm)	Thickness (mm)
a x b x r	1,2	1,4	1,5	1,8	2	2,2	2,3	2,5	2,8	3	3,2
C80x 40x 10	1,62	1,88	2,00	2,38	2,62	2,86	2,98	3,21	3,55
C80x 40x 15	1,72	1,99	2,12	2,51	2,78	3,03	3,16	3,4	3,77
C80x 50x 10	1,81	2,1	2,24	2,66	2,93	3,2	3,34	3,6	4
C80x 50x 15	1,9	2,21	2,36	2,8	3,09	3,38	3,52	3,8	4,21
C100x 40x 15	1,9	2,21	2,36	2,8	3,09	3,38	3,52	3,8	4,21	4,48	4,78
C100x 45x 13	1,96	2,27	2,43	2,89	3,19	3,48	3,63	3,92	4,34	4,62	4,93
C100x 45x 15	2	2,32	2,47	2,94	3,24	3,55	3,7	4	4,43	4,71	5,03
C100x 45x 20	2,09	2,42	2,59	3,08	3,4	3,72	3,88	4,19	4,65	4,95	5,28
C100x 50x 13	2,06	2,38	2,55	3,03	3,34	3,65	3,81	4,11	4,56	4,86	5,18
C100x 50x 15	2,09	2,43	2,59	3,08	3,4	3,72	3,88	4,19	4,65	4,95	5,28
C100x 50x 20	2,19	2,54	2,71	3,22	3,56	3,9	4,06	4,39	4,87	5,19	5,53
C 120x45x15			2,71	3,22	3,56	3,9	4,06	4,39	4,87	5,19	5,53
C 120x45x20			2,83	3,37	3,72	4,07	4,24	4,58	5,09	5,42	5,78
C 120x50x15			2,83	3,37	3,72	4,07	4,24	4,58	5,09	5,42	5,78
C 120x50x20			2,95	3,51	3,88	4,24	4,42	4,78	5,31	5,66	6,04
C 125x45x15			2,77	3,3	3,64	3,98
C 125x45x20			2,89	3,44	3,8	4,15
C 140x50x15				3,65	4,03	4,41	4,6	4,98	5,53	5,89	6,29
C 140x50x20				3,79	4,19	4,59	4,78	5,17	5,75	6,13	6,54
C 140x60x15				3,93	4,35	4,76	4,96	5,37	5,97	6,37	6,79
C 140x60x20				4,07	4,5	4,93	5,14	5,57	6,19	6,6	7,04
C 150x50x15				3,79	4,19	4,59	4,78	5,17	5,75	6,13	6,54
C 150x50x20			3,3	3,93	4,35	4,76	4,96	5,37	5,97	6,37	6,79
C 150x60x15			3,42	4,07	4,5	4,93	5,14	5,57	6,19	6,6	7,04
C 150x60x20			3,53	4,21	4,66	5,1	5,32	5,76	6,4	6,83	7,29
C 150x65x15			3,53	4,213	4,66	5,1	5,32	5,76	6,4	6,84	7,29
C 150x65x20			3,65	4,35	4,82	5,28	5,5	5,96	6,63	7,07	7,54
C 160x65x15				3,93	4,35	4,76	4,96	5,37	5,97	6,37	6,79
C 160x65x20				4,07	4,5	4,93	5,14	5,57	6,19	6,6	7,04
C 180x55x15				4,35	4,82	5,28	5,5	5,96	6,63	7,07	7,54
C 180x55x20				4,5	4,98	5,45	5,69	6,15	6,85	7,31	7,79
C 180x60x15				4,5	4,98	5,45	5,69	6,15	6,85	7,31	7,79
C 180x60x20				4,64	5,13	5,62	5,87	6,35	7,07	7,54	8,04
C 180x65x15				4,64	5,13	5,62	5,87	6,35	7,07	7,54	8,04
C 180x65x20				4,78	5,29	5,8	6,05	6,55	7,29	7,78	8,3
C 200x50x15				4,5	4,98	5,45	5,69	6,15	6,85	7,31	7,79
C 200x50x20				4,64	5,13	5,62	5,87	6,35	7,07	7,54	8,05
C 200x65x15				4,92	5,45	5,97	6,23	6,74	7,51	8,01	8,55
C 200x65x20				5,06	5,6	6,14	6,41	6,94	7,73	8,25	8,8
C 200x70x15				5,06	5,6	6,14	6,41	6,94	7,73	8,25	8,8
C 200x70x20				5,2	5,76	6,31	6,59	7,14	7,95	8,49	9,05
C 220x65x15					5,76	6,31	6,59	7,14	7,95	8,49	9,05
C 220x65x20					5,92	6,49	6,77	7,33	8,17	8,72	9,3
C 220x70x15					5,92	6,49	6,77	7,33	8,17	8,72	9,3
C 220x70x20					6,07	6,66	6,95	7,53	8,39	8,96	9,55
C 220x75x15					6,07	6,66	6,95	7,53	8,39	8,96	9,55
C 220x75x20					6,23	6,83	7,13	7,72	8,61	9,19	9,8
C 250x75x15					6,55	7,18	7,49	8,12	9,05	9,66	10,31
C 250x75x20					6,7	7,35	7,67	8,31	9,27	9,9	10,56
C 250x80x15					6,7	7,35	7,67	8,31	9,27	9,9	10,56
C 250x80x20					6,86	7,52	7,85	8,51	9,49	10,13	10,81
C 300x75x15					7,33	8,04	8,39	9,1	10,15	10,84	11,56
C 300x75x20					7,49	8,21	8,57	9,29	10,37	11,08	11,81
C 300x80x15					7,49	8,21	8,57	9,29	10,37	11,08	11,81
C 300x80x20					7,64	8,39	8,76	9,49	10,59	11,31	12,07

5. Advantages of C channel steel

Thanks to its smart design and excellent mechanical properties, C channel steel offers many outstanding advantages:

High corrosion resistance: Galvanized C channel steel provides effective resistance to oxidation and corrosion without the need for an additional anti-rust coating. This helps maintain durability and reduce maintenance costs for construction projects.
Reasonable price: With a simple manufacturing process and low material costs, C channel steel has a competitive price, suitable for various construction scales and budgets.
Easy transportation and installation: Featuring a lightweight and simple structure, C channel steel is easy to transport, cut, and assemble, helping to shorten construction time and reduce labor costs.
Large span capacity: Manufactured from high-strength steel up to 450 MPa, C channel steel can achieve large spans while maintaining stability and flexibility in structural applications.
Diverse sizes: C channel steel is available in various dimensions, lengths, and weights, meeting diverse construction requirements for all types of projects.
Low maintenance cost: With high stability and durable galvanized coating, C channel steel significantly reduces maintenance expenses.

6. Types of C channel steel

C channel steel is divided into several types based on the manufacturing method and surface characteristics. Below are the 3 most common types of C channel steel today:

Black C channel steel

Black C channel steel is an ungalvanized type, featuring a natural black or dark blue appearance. This type of steel has good load-bearing capacity and is more affordable than galvanized steel. However, its drawback is that it is prone to oxidation and corrosion when exposed to humid environments.

Therefore, black C channel steel is typically used in dry areas or indoor projects with minimal exposure to water or moisture, such as factory frames, roof frames, equipment supports, etc.

Read more: Top 7 reputable pre-engineered steel building construction companies in Ho Chi Minh City

Galvanized C channel steel

Galvanized C channel steel is coated with a thin layer of zinc through an electroplating process, creating a bright, shiny surface with a silvery-white color. The zinc coating enhances corrosion and rust resistance, making it suitable for humid or outdoor environments. It is commonly used in factories, warehouses, outdoor civil structures. Galvanized C channel steel is more expensive than black C channel steel.

Hot-dip galvanized C channel steel

Hot-dip galvanized C channel steel is manufactured by immersing the entire steel member in molten zinc, forming a thick, durable, and tightly bonded coating that is stronger than conventional electroplating. As a result, it offers superior corrosion resistance and can withstand harsh environments such as coastal areas or chemical exposure zones.

This is the most expensive type of C channel steel, often used in large-scale projects such as bridges, industrial factories, coastal constructions, etc.

7. Applications of C channel steel

C channel steel is widely used in many construction fields. Below are the most common applications:

C channel steel is often used as purlins for roofing systems, helping to support the roof structure and ensure the overall stability of the building.
With its high load-bearing capacity and easy installation, C channel steel is an ideal material for building frames in large-scale projects such as factories, warehouses, pre-engineered steel buildings.
C channel steel is applied in the construction of bridge beams, floor beams, stair structures, etc.
Thanks to its high strength and rigidity, C channel steel can be used as load-bearing columns in civil and industrial constructions such as houses, offices, factories.
In addition, C channel steel is also used to fabricate door frames, railings, fences, equipment supports, etc.

8. Latest C channel steel price update

Currently, C channel steel is manufactured in various sizes and specifications such as C80, C100, C120, C125, C150, C175, C180, C200, C250, C300. Below is a detailed reference price list for common types of C channel steel:

SPECIFICATION	WEIGHT	UNIT PRICE
SPECIFICATION	Kg/ m	VND/ m
C40x80x15x1,5mm	2.12	31,376
C40x80x15x1,6mm	2.26	33,448
C40x80x15x1,8mm	2.54	37,651
C40x80x15x2,0mm	2.83	41,825
C40x80x15x2,3mm	3.25	48,100
C40x80x15x2,5mm	3.54	52,392
C40x80x15x2,8mm	3.96	58,608
C40x80x15x3,0mm	4.24	62,752
C100x50x15x1,5mm	2.59	38,332
C100x50x15x1,6mm	2.76	40,892
C100x50x15x1,8mm	3.11	45,998
C100x50x15x2,0mm	3.45	51,119
C100x50x15x2,3mm	3.97	58,786
C100x50x15x2,5mm	4.32	63,892
C100x50x15x2,8mm	4.84	71,558
C100x50x15x3,0mm	5.18	76,679
C120x50x20x1,5mm	2.83	41,884
C120x50x20x1,6mm	3.02	44,696
C120x50x20x1,8mm	3.40	50,320
C120x50x20x2,0mm	3.77	55,796
C120x50x20x2,3mm	4.34	64,232
C120x50x20x2,5mm	4.71	69,708
C120x50x20x2,8mm	5.28	78,144
C120x50x20x3,0mm	5.65	83,620
C125x50x20x1,5mm	3.00	44,400
C125x50x20x1,6mm	3.20	47,360
C125x50x20x1,8mm	3.60	53,280
C125x50x20x2.0mm	4.00	59,200
C125x50x20x2.3mm	4.60	68,080
C125x50x20x2,5mm	5.00	74,000
C125x50x20x2,8mm	5.60	82,880
C125x50x20x3.0mm	6.00	88,800
C150x50x20x1.5mm	3.30	48,796
C150x50x20x1.6mm	3.52	52,049
C150x50x20x1.8mm	3.96	58,555
C150x50x20x2.0mm	4.40	65,061
C150x50x20x2,3mm	5.06	74,820
C150x50x20x2.5mm	5.50	81,326
C150x50x20x2,8mm	6.15	91,085
C150x50x20x3.0mm	6.59	97,591
C175x50x20x1,5mm	3.59	53,132
C175x50x20x1,6mm	3.83	56,674
C175x50x20x1,8mm	4.31	63,758
C175x50x20x2.0mm	4.79	70,843
C175x50x20x2.3mm	5.50	81,469
C175x50x20x5,5mm	5.98	88,553
C175x50x20x2,8mm	6.70	99,180
C175x50x20x3.0mm	7.18	106,264
C180x50x20x1,6mm	3.89	57,572
C180x50x20x1,8mm	4.38	64,769
C180x50x20x2.0mm	4.86	71,965
C180x50x20x2.3mm	5.59	82,760
C180x50x20x2.5mm	6.08	89,956
C180x50x20x2.8mm	6.81	100,751
C180x50x20x3.0mm	7.29	107,948
C200x50x20x1,6mm	4.15	61,420
C200x50x20x1,8mm	4.67	69,098
C200x50x20x2.0mm	5.19	76,775
C200x50x20x2.3mm	5.97	88,291
C200x50x20x2.5mm	6.48	95,969
C200x50x20x2.8mm	7.26	107,485
C200x50x20x3.0mm	8.72	128,982
C200x65x20x1,6mm	4.52	66,896
C200x65x20x1,8mm	5.09	75,258
C200x65x20x2.0mm	5.65	83,620
C200x65x20x2.3mm	6.50	96,163
C200x65x20x2.5mm	7.06	104,525
C200x65x20x2.8mm	7.91	117,068
C200x65x20x3.0mm	8.48	125,430
C250x50x20x1,6mm	4.77	70,596
C250x50x20x1,8mm	5.37	79,421
C250x50x20x2.0mm	5.96	88,245
C250x50x20x2.3mm	6.86	101,482
C250x50x20x2.5mm	7.45	110,306
C250x50x20x2.8mm	8.35	123,543
C250x50x20x3.0mm	8.94	132,368
C250x65x20x1,6mm	5.15	76,220
C250x65x20x1,8mm	5.79	85,748
C250x65x20x2.0mm	6.44	95,275
C250x65x20x2.3mm	7.40	109,566
C250x65x20x2.5mm	8.05	119,094
C250x65x20x2.8mm	9.01	133,385
C250x65x20x3.0mm	9.66	142,913
C300x50x20x1,6mm	5.40	79,920
C300x50x20x1,8mm	6.08	89,910
C300x50x20x2.0mm	6.75	99,900
C300x50x20x2.3mm	7.76	114,885
C300x50x20x2.5mm	8.44	124,875
C300x50x20x2.8mm	9.45	139,860
C300x50x20x3.0mm	10.13	149,850
C300x65x20x1,6mm	5.77	85,396
C300x65x20x1,8mm	6.49	96,071
C300x65x20x2.0mm	7.21	106,745
C300x65x20x2.3mm	8.29	122,757
C300x65x20x2.5mm	9.02	133,431
C300x65x20x2.8mm	10.10	149,443
C300x65x20x3.0mm	10.82	160,118

Note: The price of C channel steel may vary depending on the time of purchase and order quantity. You should contact a reputable steel supplier directly to get the latest quotation and consultation on selecting the most suitable C channel steel type for your project scale.

With its sturdy structure, lightweight design, and high corrosion resistance, C channel steel has proven to be an indispensable material in both industrial and civil construction projects today. Choosing the right specifications, standards, and a reputable supplier not only ensures construction quality but also helps save long-term costs.

As a leading contractor in the field of steel structures, BMB Steel is committed to delivering optimal, sustainable, and efficient construction solutions for your projects. Contact BMB Steel today for professional consultation and a detailed quotation.