熱軋不等邊角鋼（GB/T9788-1988）

熱軋不等邊角鋼(GB/T9788-1988)

(1)尺寸規格見表1。

表1 熱軋不等邊角鋼尺寸規格

角鋼號數	尺寸/m				截面面積/cm²	理論質量/(kg/m)	外表面積/(m²/m)	參考數值
	x-x			Y-Y				X₁～X₁		Y₁-Y₁		U-U
	-	-	d	r				Ix/cm4	ix/cm	Wx/cm²	Iy/ cm4	Iy/cm	Wy/cm²	Ix1/ cm⁴	Yo/ cm	Iyo/ cm⁴	Xo/ cm	Iu/ cm⁴	iu/ cm	Wu/ cm³	tanα
2.5/1.6	25	16	3	3.5			1.162	O.912	O.080	O.70	O.78	0.43	O.22	0.44	0.19	1.56	O.86	O.43	O.42	0.14	O.34	O.16	0.392
2.5/1.6	25	16	4		1.499	1.176	O.079	0.88	0.77	O.55	O.27	O.43	0.24	2.09	0.9	O.59	0.46	O.17	0.34	0.2	0.381
3.2/2	32	20	3		1.492	1.171	O.102	1.53	1.01	O.72	O.46	O.55	0.3	3.27	1.08	0.82	O.49	0.28	0.43	0.25	O.382
3.2/2	32	20	4		1.939	1.522	0.101	1.93	1	O.93	O.57	O.54	O.39	4.37	1.12	1.12	O.53	O.35	O.42	O.32	0.374
4/2.5	40	25	3	4	1.89	1.484	0.127	3.08	1.28	1.15	0.93	0.7	0.49	5.39	1.32	1.59	O.59	O.56	0.54	O.40	O.386
4/2.5	40	25	4	4	2.467	1.936	O.127	3.93	1.36	1.49	1.18	0.69	O.63	8.53	1.37	2.14	O.63	O.71	0.54	O.52	O.381
4.5/2.8	45	28	3	5	2.149	1.687	O.143	4.45	1.44	1.47	1.34	0.79	0.62	9.1	1.47	2.23	O.64	O.80	O.61	0.51	0.383
4.5/2.8	45	28	4	5	2.806	2.203	0.143	5.69	1.42	1.91	1.7	O.78	O.80	12.13	1.51	3	0.68	1.02	0.6	O.66	O.380
5.6/3.6	56	36	3	6	2.743	2.153	O.181	8.88	1.8	2.32	2.92	1.03	1.05	17.54	1.78	4.7	O.80	1.73	0.79	O.87	0.408
			4		3.59	2.818	O.180	11.45	1.79	3.03	3.76	1.02	1.37	23.39	1.82	6.33	0.85	2.23	0.79	1.13	0.408
			5		4.415	3.466	O.180	13.86	1.77	3.71	4.49	1.01	1.65	29.25	1.87	7.94	0.88	2.67	0.78	1.36	O.404
6.3/4	63	40	4	7	4.058	3.185	0.202	16.49	2.02	3.87	5.23	1.14	1.7	33.3	2.04	8.63	0.92	3.12	O.88	1.4	0.398
			5		4.993	3.92	O.202	20.02	2	4.74	6.31	1.12	2.71	41.63	2.08	10.86	O.95	3.76	O.87	1.71	O.396
			6		5.908	4.638	O.201	23.36	1.96	5.59	7.29	1.11	2.43	49.98	2.12	13.12	0.99	4.34	0.86	1.99	O.393
			7		6.802	5.339	O.201	26.53	1.98	6.4	8.24	1.1	2.78	58.07	2.15	15.47	1.03	4.97	O.86	2.29	0.389
7/4.5	70	45	4	7.5	4.547	3.57	O.226	23.17	2.26	4.86	7.55	1.29	2.17	45.92	2.24	12.26	1.02	4.4	O.98	1.77	0.41
			5		5.609	4.403	0.225	27.95	2.23	5.92	9.13	1.28	2.65	57.1	2.28	15.39	1.06	5.4	O.98	2.19	0.407
			6		6.647	5.218	0.225	32.54	2.21	6.95	1O.62	1.26	3.12	68.35	2.32	18.58	1.09	6.35	O.98	2.59	O.404
			7		7.657	6.011	0.225	37.22	2.2	8.03	12.01	1.25	3.57	79.99	2.36	21.84	1.13	7.16	0.97	2.94	O.402
(7.5/5)	75	50	5	8	6.125	4.808	O.245	34.86	2.39	6.5	12.61	1.4.4	3.3	70	2.4	21.04	1.17	7.41	1.1	2.74	0.435
			6		7.26	5.699	0.245	41.12	2.38	8.12	14.7	1.42	3.88	84.3	2.44	25.37	1.21	8.54	1.08	3.19	0.435
			8		9.467	7.431	0.244	52.39	2.35	10.52	18.53	1.4	4.99	112.5	2.52	34.23	1.29	10.87	1.07	4.1	0.429
			1O		11.59	9.098	O.244	62.71	2.33	12.79	21.96	1.38	6.04	140.8	2.6	43.43	1.36	13.1	1.06	4.99	O.423
8/5	80	50	5	8.5	6.375	5.005	O.255	41.96	2.56	7.78	12.82	1.42	3.32	85.21	2.6	21.06	1.14	7.66	1.1	2.74	O.388
			6		7.56	5.935	O.255	49.49	2.56	9.25	14.95	1.41	3.91	102.53	2.65	25.41	1.18	8.85	1.08	3.2	O.387
			7		8.724	6.848	O.255	56.16	2.54	10.58	16.96	1.39	4.48	119.33	2.69	29.82	1.21	10.18	1.08	3.7	O.384
			8		9.867	7.745	O.254	62.83	2.52	11.92	18.85	1.38	5.03	136.41	2.73	34.32	1.25	11.38	1.07	4.16	O.381
9/5.6	90	56	5	9	7.212	5.661	O.287	60.45	2.9	9.92	18.32	1.59	4.21	121.32	2.91	29.53	1.25	10.93	1.23	3.49	0.385
			6		8.557	6.717	O.286	71.03	2.88	11.74	21.42	1.58	4.96	145.59	2.95	35.58	1.29	12.9	1.23	4.13	O.384
			7		9.88	7.756	O.286	81.01	2.86	13.49	24.36	1.57	5.7	169.6	3	41.71	1.33	14.67	1.22	4.72	O.382
			8		11.183	8.779	O.286	91.03	2.85	15.27	27.15	1.56	6.41	194.17	3.04	47.93	1.36	16.34	1.21	5.29	O.380
10/6.3	100	63	6	1O	9.617	7.55	0.32	99.06	3.21	14.64	30.94	1.79	6.35	199.71	3.24	50.5	1.43	18.42	1.38	5.25	O.394
			7		11.111	8.722	O.320	113.45	3.2	19.88	35.26	1.78	7.29	233	3.28	59.14	1.47	21	1.38	6.02	0.393
			8		12.584	9.878	0.319	127.37	3.18	19.08	39.39	1.77	8.21	266.32	3.32	67.88	1.5	23.5	1.37	6.78	0.391
			10		15.467	12.142	0.319	153.81	3.15	23.32	47.12	1.74	9.98	333.06	3.4	85.73	1.58	28.33	1.35	8.24	0.387
10/8	100	80	6		1O.637	8.35	0.354	107.04	3.17	15.19	61.24	2.4	10.16	199.83	2.95	102.68	1.97	31.65	1.72	8.37	O.627
			7		12.301	9.656	0.354	122.73	3.16	17.52	70.08	2.39	11.71	233.2	3	119.98	2.01	36.17	1.72	9.6	O.626
			8		13.944	10.946	O.353	137.92	3.14	19.81	78.58	2.37	13.21	266.61	3.04	137.37	2.05	40.58	1.71	1O.80	O.625
			10		17.167	13.476	O.353	166.87	3.12	24.24	94.65	2.35	16.12	333.63	3.12	172.48	2.13	49.1	1.69	13.12	0.622
11/7	100	70	6		10.637	8.35	0.354	133.37	3.54	17.85	42.92	2.01	7.9	265.78	3.53	69.08	1.57	25.36	1.54	6.53	O.403
			7		12.301	9.656	0.354	153	3.53	20.6	49.01	2	9.09	310.07	3.57	80.82	1.61	28.95	1.53	7.5	0.402
			8		13.944	10.946	O.353	172.04	3.51	23.3	54.87	1.98	10.25	254.39	3.62	92.7	1.65	32.45	1.53	8.45	0.401
			10		17.167	13.476	O.353	208.39	3.48	28.54	65.88	1.96	12.48	443.13	3.7	116.83	1.72	39.2	1.51	10.29	0.397
12.5/8	125	80	7	11	14.096	11.066	O.403	227.98	4.02	26.86	74.42	2.3	12.01	454.99	4.01	120.32	1.8	43.81	1.76	9.92	0.408
			8		15.989	12.551	O.40	256.77	4.01	30.41	83.49	2.28	13.56	519.99	4.06	137.85	1.84	49.15	1.75	11.18	0.407
			10		19.712	15.474	0.402	312.04	3.98	37.33	100.67	2.26	16.56	650.09	4.14	173.4	1.92	59.45	1.74	13.64	0.404
			12		23.351	18.33	0.402	364.41	3.95	44.01	116.67	2.24	19.43	780.39	4.22	209.67	2	69.35	1.72	16.O1	O.400
14/9	140	90	8	12	18.038	14.16	O.453	365.64	4.5	38.48	120.69	2.59	17.34	730.53	4.5	197.79	2.04	70.83	1.98	14.31	O.411
			10		22.261	17.475	0.452	445.5	4.47	47.31	146.03	2.56	21.22	913.2	4.58	243.92	2.12	85.82	1.96	17.48	O.409
			12		26.4	20.724	O.451	521.59	4.44	55.87	169.79	2.54	24.95	1096.09	4.66	296.89	2.19	100.21	1.95	20.54	0.406
			14		30.456	23.908	0.451	594.1	4.42	64.18	192.1	2.51	28.54	1279.2	4.74	348.82	2.27	114.13	1.94	23.52	0.403
16/10	160	100	1O	13	25.315	19.872	O.512	668.69	5.14	62.13	205.03	2.85	26.56	1362.89	5.24	336.59	2.28	121.74	2.19	21.92	O.390
			12		30.054	23.592	0.511	784.91	5.11	73.49	239.06	2.82	31.28	1635.56	5.32	405.94	2.36	142.33	2.17	25.79	O.388
			14		34.709	27.247	0.51	896.3	5.08	84.56	271.2	2.8	35.83	1908.5	5.4	476.42	2.43	162.23	2.16	29.56	O.385
			16		39.281	30.835	0.51	1003.04	5.05	95.33	301.6	2.77	40.24	2181.79	5.48	548.22	2.51	182.57	2.16	33.44	0.382
18/11	180	1O	1O	14	28.373	22.273	0.571	956.25	5.8	78.96	278.11	3.13	32.49	1940.4	5.89	447.22	2.44	166.5	2.42	26.88	0.376
			12		33.712	26.464	O.571	1124.72	5.78	93.53	325.03	3.1	38.32	2328.38	5.98	538.94	2.52	194.87	2.4	31.66	O.374
			14		38.967	30.589	O.570	1286.91	5.75	107.76	369.55	3.08	43.97	2716.66	6.06	631.95	2.59	222.3	2.39	36.32	O.372
			16		44.139	34.649	0.569	1443.06	5.72	121.64	411.85	3.06	49.44	3105.15	6.14	726.46	2.67	248.94	2.38	40.87	0.369
20/12.5	200	125	12		37.912	29.761	O.641	1570.9	6.44	116.73	483.16	3.57	49.99	3193.85	6.54	787.74	2.83	285.79	2.74	41.23	0.392
			14		43.867	34.436	O.640	1800.97	6.41	134.65	550.83	3.54	57.44	3726.17	6.62	922.47	2.91	326.58	2.73	47.34	0.39
			16		49.739	39.045	O.639	2023.35	6.38	152.18	615.44	3.52	64.69	4258.86	6.7	1058.86	2.99	366.21	2.71	53.32	O.388
			18		55.526	43.588	0.639	2238.3	6.35	169.33	677.19	3.49	71.74	4792	6.78	1197.13	3.06	404.83	2.7	59.18	O.385

注：1.括號內型號不推薦使用。

2.截面圖中的r1=1/3d及表中r值的數據用于孔型設計，不做交貨條件。

(2)允許偏差見表2。

表2 熱軋不等邊角鋼的允許偏差

角鋼號數	邊寬Bb/mm	邊厚d/mm	長度/m	角鋼號數	邊寬B.b/mm	邊厚d/mm	長度/m
2.5/1.6～5.6/3.6 6.3/4～9/5.6	±O.8 土1.5	±0.4 土0.6	4～12 4～12	10/6.3～14/9 16/10～20/12.5	±2.O 士2.5	±0.7 ±1.O	4～19 6～19

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鋼材

建材

鋼材百科

管材

熱軋不等邊角鋼（GB/T9788-1988）