American Standard Steel Channels

Dimensions and static parameters of American Standard Steel Channels

Properties  in imperial units of American Steel Channels are indicated below.

Designation	Dimensions					Static Parameters
						Moment of Inertia		Section Modulus
Imperial (in x lb/ft)	Depth h (in)	With w (in)	Web Thickness s (in)	Sectional Area (in2)	Weight (lb/ft)	Ix (in4)	Iy (in4)	Wx (in3)	Wy (in3)
C 15 x 50	15	3.716	0.716	14.7	50	404	11.0	53.8	3.78
C 15 x 40	15	3.520	0.520	11.8	40	349	9.23	46.5	3.37
C 15 x 33.9	15	3.400	0.400	9.96	33.9	315	8.13	42.0	3.11
C 12 x 30	12	3.170	0.510	8.82	30	162	5.14	27.0	2.06
C 12 x 25	12	3.047	0.387	7.35	25	144	4.47	24.1	1.88
C 12 x 20.7	12	2.942	0.282	6.09	20.7	129	3.88	21.5	1.73
C 10 x 30	10	3.033	0.673	8.82	30	103	3.94	20.7	1.65
C 10 x 25	10	2.886	0.526	7.35	25	91.2	3.36	18.2	1.48
C 10 x 20	10	2.739	0.379	5.88	20	78.9	2.81	15.8	1.32
C 10 x 15.3	10	2.600	0.240	4.49	15.3	67.4	2.28	13.5	1.16
C 9 x 20	9	2.648	0.448	5.88	20	60.9	2.42	13.5	1.17
C 9 x 15	9	2.485	0.285	4.41	15	51.0	1.93	11.3	1.01
C 9 x 13.4	9	2.433	0.233	3.94	13.4	47.9	1.76	10.6	0.96
C 8 x 18.75	8	2.527	0.487	5.51	18.75	44.0	1.98	11.0	1.01
C 8 x 13.75	8	2.343	0.303	4.04	13.75	36.1	1.53	9.03	0.85
C 8 x 11.75	8	2.260	0.220	3.38	11.5	32.6	1.32	8.14	0.78
C 7 x 14.75	7	2.299	0.419	4.33	14.75	27.2	1.38	7.78	0.78
C 7 x 12.25	7	2.194	0.314	3.60	12.25	24.2	1.17	6.93	0.70
C 7 x 9.8	7	2.090	0.210	2.87	9.8	21.3	0.97	6.08	0.63
C 6 x 13	6	2.157	0.437	3.83	13	17.4	1.05	5.80	0.64
C 6 x 10.5	6	2.034	0.314	3.09	10.5	15.2	0.87	5.06	0.56
C 6 x 8.2	6	1.920	0.200	2.40	8.2	13.1	0.69	4.38	0.49
C 5 x 9	5	1.885	0.325	2.64	9	8.90	0.63	3.56	0.45
C 5 x 6.7	5	1.750	0.190	1.97	6.7	7.49	0.48	3.00	0.38
C 4 x 7.25	4	1.721	0.321	2.13	7.25	4.59	0.43	2.29	0.34
C 4 x 5.4	4	1.584	0.184	1.59	5.4	3.85	0.32	1.93	0.28
C 3 x 6	3	1.596	0.356	1.76	6	2.07	0.31	1.38	0.27
C 3 x 5	3	1.498	0.258	1.47	5	1.85	0.25	1.24	0.23
C 3 x 4.1	3	1.410	0.170	1.21	4.1	1.66	0.20	1.10	0.20

• 1 cm⁴ = 10^-8 m = 10⁴ mm
• 1 in⁴ = 4.16x10⁵ mm⁴ = 41.6 cm⁴
• 1 cm³ = 10^-6 m = 10³ mm

The standard method for specifying the dimensions of a American Standard Steel Channels is like C 5 x 9. which is a beam 5 inches deep with a weight 9 lb/ft.

I-shaped cross-section beams:

• Britain : Universal Beams (UB) and Universal Columns (UC)
• Europe : IPE. HE. HL. HD and other sections
• US : Wide Flange (WF) and H sections

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