C-Shapes (Std Channels)

Source: AISC Shapes Database v16.0. Exact official matches: 31 of 31 records; unmatched records and fields remain unverified.

ASTM A6 · 31 sections

Free Reference Data

C-shapes (Standard Channels) are ASTM A6 channel sections with sloped inner flanges. Used in light framing, crane rails, and secondary structural members across North American construction.

Axes: x-x / y-y. Values from the shared section record; — means unavailable.

Reference values — verify against the current edition of the applicable standard or manufacturer's table before design use.

Section	A (cm²)	G (kg/m)	Major I (cm⁴)	Minor I (cm⁴)	Major elastic modulus (cm³)	Minor elastic modulus (cm³)
C 3×3.5 published nominal value	7.03	5.2	65.3	7.03	17	2.98
C 3×4.1	7.74	6.1	68.7	7.95	18	3.21
C 3×5	9.48	7.4	77	10	20.2	3.74
C 3×6	11.4	8.9	86.2	12.5	22.6	4.31
C 4×4.5	8.65	6.7	147	11	29	4.15
C 4×5.4	10.2	8	160	13	31.5	4.54
C 4×7.25	13.7	10.8	191	17.7	37.5	5.52
C 5×6.7 published nominal value	12.7	10.4	311	19.6	49	6.1
C 5×9 published nominal value	17	13	370	26	58.3	7.28
C 6×8.2	15.4	12.2	545	28.6	71.3	8
C 6×10.5	19.8	15.6	629	35.8	82.6	9.19
C 6×13	24.6	19.3	720	43.7	94.7	10.5
C 7×9.8	18.5	14.6	882	39.8	99.5	10.1
C 7×12.25	23.2	18.2	1010	48.3	113	11.4
C 7×14.75	27.9	22	1130	57	127	12.7
C 8×11.5	21.7	17.1	1350	54.5	133	12.7
C 8×13.75	26	20.5	1500	63.3	148	13.9
C 8×18.75	35.5	27.9	1830	82	180	16.6
C 9×13.4	25.4	19.9	1990	72.8	174	15.6
C 9×15	28.4	22	2120	79.5	185	16.6
C 9×20	37.9	30	2530	100	221	19.2
C 10×15.3	28.9	22.8	2800	94.5	221	18.8
C 10×20	37.9	30	3280	117	259	21.5
C 10×25	47.4	37	3790	139	298	24.1
C 10×30	56.8	45	4290	164	339	27
C 12×20.7	39.2	30.8	5370	161	352	28.2
C 12×25	47.4	37	5990	185	393	30.6
C 12×30	56.8	45	6740	213	442	33.6
C 15×33.9	64.5	50.4	13100	336	688	50.6
C 15×40	76.1	60	14500	382	762	54.7
C 15×50	94.8	74	16800	458	882	61.8