AISC ST-Shapes (Tee cut from S) - Section Properties

Section dimensions and properties for AISC ST-Shapes (Tee cut from S).

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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
ST12X60.5	60.5	12.3	8.05	0.8	1.09	17.8	259	30.1	54.5	3.82	41.5	10.3	18.1	1.53	6.38	27.5
ST12X53	53	12.3	7.87	0.62	1.09	15.6	216	24.1	43.3	3.72	38.4	9.76	16.7	1.57	5.05	15
ST12X50	50	12	7.25	0.745	0.87	14.7	215	26.3	47.5	3.83	23.7	6.55	12	1.27	3.76	19.5
ST12X45	45	12	7.13	0.625	0.87	13.2	190	22.6	41.1	3.79	22.3	6.27	11.2	1.3	3.01	12.1
ST12X40	40	12	7	0.5	0.87	11.7	162	18.6	33.6	3.72	21	6	10.4	1.34	2.44	6.94
ST10X48	48	10.2	7.2	0.8	0.92	14.1	143	20.3	36.9	3.18	25	6.93	12.5	1.33	4.16	15
ST10X43	43	10.2	7.06	0.66	0.92	12.7	124	17.2	31.1	3.13	23.3	6.59	11.6	1.36	3.3	9.17
ST10X37.5	37.5	10	6.39	0.635	0.795	11	109	15.8	28.6	3.15	14.8	4.62	8.36	1.16	2.28	7.21
ST10X33	33	10	6.26	0.505	0.795	9.7	92.9	12.9	23.4	3.1	13.7	4.39	7.7	1.19	1.78	4.02
ST9X35	35	9	6.25	0.711	0.691	10.3	84.5	14	25.1	2.87	12	3.84	7.17	1.08	2.02	7.03
ST9X27.35	27.35	9	6	0.461	0.691	8.02	62.3	9.6	17.3	2.79	10.4	3.45	6.06	1.14	1.16	2.26
ST7.5X25	25	7.5	5.64	0.55	0.622	7.34	40.5	7.72	14	2.35	7.79	2.76	4.99	1.03	1.05	2.02
ST7.5X21.45	21.45	7.5	5.5	0.411	0.622	6.3	32.9	5.99	10.8	2.29	7.13	2.59	4.54	1.06	0.765	0.995
ST6X25	25	6	5.48	0.687	0.659	7.33	25.1	6.04	11	1.85	7.79	2.84	5.16	1.03	1.36	1.97
ST6X20.4	20.4	6	5.25	0.462	0.659	5.96	18.9	4.27	7.71	1.78	6.74	2.57	4.43	1.06	0.842	0.787
ST6X17.5	17.5	6	5.08	0.428	0.544	5.12	17.2	3.95	7.12	1.83	4.92	1.94	3.4	0.98	0.524	0.556
ST6X15.9	15.9	6	5	0.35	0.544	4.65	14.8	3.3	5.94	1.78	4.66	1.87	3.22	1	0.438	0.364
ST5X17.5	17.5	5	4.94	0.594	0.491	5.14	12.5	3.62	6.58	1.56	4.15	1.68	3.1	0.899	0.633	0.725
ST5X12.7	12.7	5	4.66	0.311	0.491	3.72	7.79	2.05	3.7	1.45	3.36	1.44	2.49	0.95	0.3	0.173
ST4X11.5	11.5	4	4.17	0.441	0.425	3.38	5	1.76	3.19	1.22	2.13	1.02	1.84	0.795	0.271	0.168
ST4X9.2	9.2	4	4	0.271	0.425	2.7	3.49	1.14	2.07	1.14	1.84	0.922	1.59	0.827	0.167	0.0642
ST3X8.6	8.6	3	3.57	0.465	0.359	2.53	2.12	1.02	1.85	0.915	1.14	0.642	1.17	0.673	0.181	0.0772
ST3X6.25	6.25	3	3.33	0.232	0.359	1.83	1.26	0.547	1.01	0.831	0.901	0.541	0.93	0.702	0.083	0.0197
ST2.5X5	5	2.5	3	0.214	0.326	1.46	0.671	0.348	0.65	0.677	0.597	0.398	0.686	0.638	0.0568	0.01
ST2X4.75	4.75	2	2.8	0.326	0.293	1.4	0.462	0.319	0.592	0.575	0.444	0.317	0.565	0.564	0.059	0.00995
ST2X3.85	3.85	2	2.66	0.193	0.293	1.13	0.307	0.198	0.381	0.522	0.374	0.281	0.485	0.576	0.0364	0.00457
ST1.5X3.75	3.75	1.5	2.51	0.349	0.26	1.1	0.2	0.187	0.351	0.426	0.289	0.23	0.411	0.513	0.0432	0.00496
ST1.5X2.85	2.85	1.5	2.33	0.17	0.26	0.83	0.114	0.097	0.196	0.37	0.223	0.192	0.328	0.518	0.0216	0.00189

28 sections · source: AISC Shapes Database v16.0

Related section types

AISC WT-Shapes (Tee cut from W)

289 sections · AISC Shapes Database v16.0

AISC MT-Shapes (Tee cut from M)

14 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) →

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