Construction

S275JR S355JR Steel Profile C Shape Channel/UPN 80/100

DETAILS AND PARAMETERS

TOLERANCES

TECHNICAL SHEET

C-Section Steel (C-Beam)

C-section steel, commonly known as C-beam or C-channel, is a high-efficiency, lightweight structural steel product characterized by its distinctive C-shaped cross-section. Primarily manufactured via cold forming (with hot rolling for specialized heavy-duty variants), it balances strength, material efficiency, and dimensional precision—making it a preferred choice in modern steel structures, construction, and manufacturing.

Cold Forming (Primary Process): Flat steel strips (usually with a thickness of 0.8–6mm) are continuously bent into a C-shape at room temperature using roll-forming equipment. This process ensures precise dimensions, smooth surfaces, and consistent mechanical properties without compromising the steel’s internal structure.

Hot Rolling (Specialized Process): Used for heavy-duty C-sections (thickness >6mm). Heated steel billets are rolled into the C-profile, delivering higher load-bearing capacity for industrial-grade applications.

Key Performance Characteristics

High Material Efficiency: The C-shape concentrates steel in high-stress areas (flanges and web), minimizing material usage while maintaining strength. Compared to traditional hot-rolled channel steel of equal weight, its section modulus (a measure of bending stiffness) is 30–50% higher.

Excellent Bending & Torsional Rigidity: Lipped cold-formed C-sections, in particular, leverage the "lip effect" to resist twisting and flange buckling, making them ideal for long-span purlins or rafters in steel buildings.

Dimensional Precision & Customization: Cold roll-forming allows flexible adjustment of web height (50–400mm), flange width (20–150mm), and thickness (0.8–6mm) without mold changes, supporting custom sizes for specific projects.

Superior Fabricability: Its regular profile facilitates easy processing—cutting (laser, plasma, sawing), drilling, punching, and welding. It can be quickly connected to other components (e.g., bolts, brackets, or gusset plates) using standard tools.

Lightweight & Easy Installation: Cold-formed C-sections are significantly lighter than hot-rolled channels of equivalent strength, reducing transportation costs and simplifying on-site lifting/assembly.

L Shapes (Equal leg)

		Length of leg (mm)				Thickness (mm)
Producto	Calidad	Mín 团	Nom	Máx		Mín	Nom	Máx
PERFIL ANGULAR 3/4"X1/8"X6M	Legítimo	18.26	19.05	19.84		2.97	3.18	3.38
PERFIL ANGULAR 3/4"X1/8X6MC	Comercial	18.26	19.05	19.84		2.00	2.20	2.40
PERFIL ANGULAR 3/4"X1/8X6M R	Milimétrico	18.26	19.05	19.84		2.60	2.70	2.80
PERFIL ANGULAR 1"X1/4"X6M	Legítimo	24.61	25.40	26.19		6.10	6.35	6.60
PERFIL ANGULAR 1"X1/8"X6M	Legítimo	24.61	25.40	26.19		2.97	3.18	3.38
PERFIL ANGULAR 1"X3/16"X6M	Legítimo	24.61	25.40	26.19		4.56	4.76	4.97
PERFIL ANGULAR 1"X1/8"X6MC	Comercial	24.61	25.40	26.19		2.10	2.20	2.30
PERFIL ANGULAR 1"X1/8X6M R	Milimétrico	24.61	25.40	26.19		2.60	2.70	2.80
PERFIL ANGULAR 1 1/4"X1/8X6MC	Comercial	30.51	31.75	32.89		2.10	2.20	2.30
PERFIL ANGULAR 1 1/4"X1/8X6M R	Milimétrico	30.51	31.75	32.89		2.60	2.70	2.80
PERFIL ANGULAR 1 1/4"X1/8"X6M	Legítimo	30.56	31.75	32.94		2.92	3.18	3.43
PERFIL ANGULAR 1 1/4"X3/16"X6M	Legítimo	30.56	31.75	32.94		4.51	4.76	5.02
PERFIL ANGULAR 1 1/4"X1/4"X6M	Legítimo	30.56	31.75	32.94		6.10	6.35	6.60
PERFIL ANGULAR 1 1/2"X1/8"X6M	Legítimo	36.91	38.10	39.29		2.92	3.18	3.43
PERFIL ANGULAR 1 1/2"X3/16"X6M	Legítimo	36.91	38.10	39.29		4.51	4.76	5.02
PERFIL ANGULAR 1 1/2"X1/4"X6M	Legítimo	36.91	38.10	39.29		6.10	6.35	6.60
PERFIL ANGULAR 1 1/2"X1/8X6M R	Milimétrico	36.91	38.10	39.29		2.60	2.70	2.80
PERFIL ANGULAR 1 1/2"X1/8X6MC	Comercial	36.91	38.10	39.29		2.10	2.20	2.30
PERFIL ANGULAR 1 1/2"X3/16X6M R	Milimétrico	36.91	38.10	39.29		3.90	4.00	4.10
PERFIL ANGULAR 2"X1/8"X6M R	Milimétrico	49.00	50.80	51.60		2.60	2.70	2.80
PERFIL ANGULAR 2"X1/8"X6M	Legítimo	49.61	50.80	51.99		2.92	3.18	3.43
PERFIL ANGULAR 2"X3/16"X6M	Legítimo	49.61	50.80	51.99		4.51	4.76	5.02
PERFIL ANGULAR 2"X1/4"X6M	Legítimo	49.61	50.80	51.99		6.10	6.35	6.60
PERFIL ANGULAR 2"X3/8"X6M	Legítimo	49.61	50.80	51.99		9.27	9.53	9.78
PERFIL ANGULAR 2 1/2"X3/16"X6M	Legítimo	61.91	63.50	65.09		4.46	4.76	5.07
PERFIL ANGULAR 2 1/2"X1/4"X6M	Legítimo	61.91	63.50	65.09		5.97	6.35	6.73
PERFIL ANGULAR 2 1/2"X3/8"X6M	Legítimo	61.91	63.50	65.09	9.14		9.53	9.91
PERFIL ANGULAR 3"X3/16"X6M	Legítimo	73.82	76.20	79.38	4.4577		4.76	5.0673
PERFIL ANGULAR 3"X1/4"X6M	Legítimo	73.82	76.20	79.38	2.41935		6.35	6.731
PERFIL ANGULAR 3"X1/2"X6M	Legítimo	73.82	76.20	79.38	No esp.		12.70	No esp.
PERFIL ANGULAR 3"X3/8"X6M	Legítimo	73.82	76.20	79.38	No esp.		9.53	No esp.
PERFIL ANGULAR 4"X1/4"X6M	Legítimo	99.22	101.60	104.78	No esp.		6.35	No esp.
PERFIL ANGULAR 4"X3/8"X6M	Legítimo	99.22	101.60	104.78	No esp.		9.53	No esp.
PERFIL ANGULAR 4"X1/2"X6M	Legítimo	99.22	101.60	104.78	No esp.		12.70	No esp.