方钢管重量计算公式

正方形和长方形(矩形)截面碳钢:
每米重量单位: kg/m(千克/米) & lb/ft(磅/英尺)  公式:kg/m = (Oc - 4Wt) * Wt * 0.00785
其中：Oc是外周长，Wt是壁厚；正方形Oc=4*a                 长方形Oc=2a+2b a,b是边长

产品部分参数     （GB/T3094-2000）
边长/mm	壁厚/mm	截面面积/cm2	理论重量/kg/M	惯性矩/cm4	截面模数/cm3
40	3.5	4.90	3.85	11.16	5.58
	4	5.49	4.56	14.37	6.84
	5	6.98	5.48	16.56	7.87
	6	7.55	5.93	15.34	7.67
50	4	7.09	5.56	25.56	10.22
	5	8.58	6.73	29.81	11.93
	6	9.95	7.81	33.35	13.34
	7	11.21	8.80	36.23	14.49
	8	12.35	9.70	38.51	15.41
60	5	10.58	8.30	54.57	18.19
	6	13.35	9.69	61.82	20.61
	7	14.01	11.00	68.03	22.68
	8	15.55	12.21	73.28	24.43
70	5	12.58	9.87	90.26	25.79
	6	14.7	11.58	103.1	29.47
	7	16.81	13.19	114.5	32.72
	8	18.75	14.72	124.5	35.57
80	5	14.58	11.44	138.9	34.72
	6	17.15	13.46	159.7	39.93
	7	19.61	15.39	178.5	44.63
	8	21.95	17.23	195.4	48.85
92	5	16.98	13.33	217.1	47.19
	6	20.03	15.72	251.1	54.59
	7	22.97	18.03	282.3	61.38
	8	25.79	20.25	310.9	67.58
100	5	18.58	14.58	282.8	56.57
	6	21.95	17.23	328.2	65.54
	7	25.21	19.79	370.2	74.04
	8	28.35	22.36	408.9	81.78
108	5	19.96	15.67	346.99	72.14
	6	23.55	18.49	400.07	85.13
	7	27.02	21.21	448.15	97.61
	8	30.35	23.82	491.42	109.56
	10	36.62	28.75	564.27	131.84
	12	42.37	33.26	620.05	151.91
	12.5	43.73	34.33	631.48	156.57
	14	47.59	37.36	660.12	169.71
	16.5	53.38	41.90	690.13	188.75
	18	56.46	44.32	698.50	198.48
110	7	28.01	21.99	503.4	91.54
	8	31.55	24.77	557.9	101.4
	9	34.98	27.46	608.4	110.6
	10	37.42	29.37	600.90	137.26
	12	43.33	34.01	661.57	158.30
	14	48.71	38.24	705.79	177.05
	16	53.57	42.05	734.96	193.47
	18	57.90	45.45	750.37	207.58
120	5	22.36	17.55	485.47	89.79
	6	26.43	20.75	562.16	106.17
	7	30.38	23.85	632.54	121.99
	8	34.19	26.84	696.82	137.23
	10	41.42	32.15	807.91	165.94
	12	48.13	37.78	987.05	192.03
	14	54.31	42.63	9665.79	216.23
	16	59.97	47.08	1015.66	237.3
150	6	33.63	26.40	1145.91	168.85
	7	38.78	30.44	1299.44	194.70
	8	43.79	34.38	1443.00	219.85
	10	53.42	41.93	1701.21	268.02
	12	62.53	49.09	1922.61	313.26
	14	71.11	55.82	2109.19	355.49
	16	79.17	62.15	2262.95	394.63
180	16	98.37	77.22	4252.42	590.55
	18	108.3	85.02	4541.3	648.77
200	8	59.79	46.94	3621	400.25
	10	73.42	58.63	4337.63	491.53
	12	86.53	67.93	4983.59	579.08
	14	99.11	77.8	5562.26	662.78
	16	111.17	87.27	6076.38	742.55
	18	122.7	96.32	6528.64	818.29
250	10	93.42	73.33	8841.87	781.73
	12	110.53	86.77	10254.22	924.94
	14	127.11	99.78	11556.24	1063.51
	16	143.17	112.39	12751.41	1197.31
	18	158.7	124.58	13843.17	1326.27
280	10	105.42	82.75	12648.95	987.86
	12	124.93	98.07	14726.82	1170.88
	14	143.91	112.97	16663.46	1348.77
	16	162.37	127.46	18462.79	1521.42
	18	180.3	141.54	20128.71	1688.73

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无缝管尺寸规格表
无缝管规格表