AISC S-Shapes (American Standard Beam) - Section Properties

Section dimensions and properties for AISC S-Shapes (American Standard Beam).

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Designation	mass lb/ft	h in	b in	t_w in	t_f in	A in²	I_y in⁴	W_el,y in³	W_pl,y in³	i_y in	I_z in⁴	W_el,z in³	W_pl,z in³	i_z in	I_t in⁴	I_w in⁶
S24X121	121	24.5	8.05	0.8	1.09	35.5	3160	258	306	9.43	83	20.6	36.3	1.53	12.8	11400
S24X106	106	24.5	7.87	0.62	1.09	31.1	2940	240	279	9.71	76.8	19.5	33.4	1.57	10.1	10500
S24X100	100	24	7.25	0.745	0.87	29.3	2380	199	239	9.01	47.4	13.1	24	1.27	7.59	6350
S24X90	90	24	7.13	0.625	0.87	26.5	2250	187	222	9.21	44.7	12.5	22.4	1.3	6.05	5980
S24X80	80	24	7	0.5	0.87	23.5	2100	175	204	9.47	42	12	20.8	1.34	4.89	5620
S20X96	96	20.3	7.2	0.8	0.92	28.2	1670	165	198	7.71	49.9	13.9	24.9	1.33	8.4	4690
S20X86	86	20.3	7.06	0.66	0.92	25.3	1570	155	183	7.89	46.6	13.2	23.1	1.36	6.65	4370
S20X75	75	20	6.39	0.635	0.795	22	1280	128	152	7.62	29.5	9.25	16.7	1.16	4.59	2720
S20X66	66	20	6.26	0.505	0.795	19.4	1190	119	139	7.83	27.5	8.78	15.4	1.19	3.58	2530
S18X70	70	18	6.25	0.711	0.691	20.5	923	103	124	6.7	24	7.69	14.3	1.08	4.1	1800
S18X54.7	54.7	18	6	0.461	0.691	16	801	89	104	7.07	20.7	6.91	12.1	1.14	2.33	1550
S15X50	50	15	5.64	0.55	0.622	14.7	485	64.7	77	5.75	15.6	5.53	10	1.03	2.12	805
S15X42.9	42.9	15	5.5	0.411	0.622	12.6	446	59.4	69.2	5.95	14.3	5.19	9.08	1.06	1.54	737
S12X50	50	12	5.48	0.687	0.659	14.7	303	50.6	60.9	4.55	15.6	5.69	10.3	1.03	2.77	501
S12X40.8	40.8	12	5.25	0.462	0.659	11.9	270	45.1	52.7	4.76	13.5	5.13	8.86	1.06	1.69	433
S12X35	35	12	5.08	0.428	0.544	10.2	228	38.1	44.6	4.72	9.84	3.88	6.8	0.98	1.05	323
S12X31.8	31.8	12	5	0.35	0.544	9.31	217	36.2	41.8	4.83	9.33	3.73	6.44	1	0.878	306
S10X35	35	10	4.94	0.594	0.491	10.3	147	29.4	35.4	3.78	8.3	3.36	6.19	0.899	1.29	188
S10X25.4	25.4	10	4.66	0.311	0.491	7.45	123	24.6	28.3	4.07	6.73	2.89	4.99	0.95	0.603	152
S8X23	23	8	4.17	0.441	0.425	6.76	64.7	16.2	19.2	3.09	4.27	2.05	3.67	0.795	0.55	61.2
S8X18.4	18.4	8	4	0.271	0.425	5.4	57.5	14.4	16.5	3.26	3.69	1.84	3.18	0.827	0.335	52.9
S6X17.25	17.25	6	3.57	0.465	0.359	5.05	26.2	8.74	10.5	2.28	2.29	1.28	2.35	0.673	0.371	18.2
S6X12.5	12.5	6	3.33	0.232	0.359	3.66	22	7.34	8.45	2.45	1.8	1.08	1.86	0.702	0.167	14.3
S5X10	10	5	3	0.214	0.326	2.93	12.3	4.9	5.66	2.05	1.19	0.795	1.37	0.638	0.114	6.52
S4X9.5	9.5	4	2.8	0.326	0.293	2.79	6.76	3.38	4.04	1.56	0.887	0.635	1.13	0.564	0.12	3.05
S4X7.7	7.7	4	2.66	0.193	0.293	2.26	6.05	3.03	3.5	1.64	0.748	0.562	0.97	0.576	0.0732	2.57
S3X7.5	7.5	3	2.51	0.349	0.26	2.2	2.91	1.94	2.35	1.15	0.578	0.461	0.821	0.513	0.0896	1.08
S3X5.7	5.7	3	2.33	0.17	0.26	1.66	2.5	1.67	1.94	1.23	0.447	0.383	0.656	0.518	0.0433	0.838

28 sections · source: AISC Shapes Database v16.0

Related section types

AISC W-Shapes (Wide-Flange)

289 sections · AISC Shapes Database v16.0

AISC M-Shapes (Miscellaneous I)

16 sections · AISC Shapes Database v16.0

AISC HP-Shapes (Bearing Pile)

22 sections · AISC Shapes Database v16.0

Learn more

📘 How to read a steel section table (UB, UC, IPE, HE) →📘 Section modulus explained: elastic (Wel) vs plastic (Wpl) →📘 IPE vs HE (HEA/HEB): choosing a European steel beam →

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