通用型鋼系列：熱軋圓鋼、熱軋方鋼現(xiàn)貨及熱軋圓鋼和方鋼的尺寸規(guī)格表在富金順管材

通用型鋼系列：熱軋圓鋼、熱軋方鋼現(xiàn)貨及熱軋圓鋼和方鋼的尺寸規(guī)格表在富金順管材

通用型鋼

1.熱軋圓鋼和方鋼（GB／T702-1986）

直徑d (或邊長(zhǎng)a) ／mm	精度組別			截面面積／cm²		理論質(zhì)量(kg／m)
	1組	2組	3組
				圓  鋼	方  鋼	圓 鋼	方  鋼
	允許偏差／mm
5.5	±0.20	±0.30	±0.40	..2375	0.30	0.186	0.237
6				0.2827	0.36	0.222	0.283
6.5				0.3318	0.42	0.260	0.332
7				0.3848	0.49	0.302	0.385
8	±0.25	±0.35	±0.40	0.5077	0.64	0.395	0.502
9				0.6362	0.81	0.499	0.636
10				0.7854	1.0	0.617	0.785
*11				0.9503	1.21	0.746	0.95
12				1.131	1.44	0.888	1.13
13				1.327	1.69	1.04	1.33
14				1.539	1.96	1.21	1.54
15				1.767	2.25	1.39	1.77
16				2.011	2.56	1.58	2.01
17				2.270	2.89	1.78	2.27
18				2.545	3.24	2.00	2.54
19				2.835	3.61	2.23	2.83
20				3.142	4.00	2.47	3.14
21	±. 30	±. 40	±. 50	3.464	4.41	2.72	3.46
22				3.801	4.84	2.98	3.80
*23				4.155	5.29	3.26	4.15
24				4.524	5.76	3.55	4.52
25				4.909	6.25	3.85	4.91
26				5.309	6.76	4.17	5.31
*27				5.726	7.29	4.49	5.72
28				6.158	7.84	4.83	6.15
*29				6.605	8.41	5.18	6.60
30				7.069	9.00	5.55	7.06
*31	±0.40	±0.50	±0.60	7.548	9.61	5.93	7.54
32				8.042	10.24	6.31	8.04
*33				8.553	10.89	6.71	8.55
34				9.097	11.56	7.13	9.07
*35				9.621	12.25	7.55	9.62
36				10.18	12.96	7.99	10.2
38				11.34	14.44	8.90	11.3
40				12.57	16.00	9.86	12.6
42				13.85	17.64	10.9	13.8
45				15.90	20.25	12.5	15.9
48				18.10	23.04	14.2	18.1
50				19.64	25.00	15.4	19.6
53	±0.60	±. 70	±0.80	22.06	28.09	17.3	22..
*55				23.76	30.25	18.6	23.7
56				24.63	31.36	19.3	24.6
*58				26.42	33.64	20.7	26.4
60	±. 60	±. 70	±0.80	28.27	36.00	22.2	28.3
63				31.17	39.69	24.5	31.2
*65				33.18	42.25	26..	33.2
*68				36.32	46.24	28.5	36.3
70				38.48	49.00	30.2	38.5
75				44.18	56.25	34.7	44.2
80				50.27	64.00	39.5	50.2
85	±. 9	±1.0	±1.1	56.75	72.25	44.5	56.7
90				63.62	81.00	49.9	63.6
95				70.88	90.25	55.6	70.8
100				78.54	100.00	61.7	78.5
105				86.59	110.25	68.0	86.5
110				95.03	121.00	74.6	95.0
115	±1.2	±1.3	±1.4	103.82	132.26	81.5	104
120				113.10	144.00	88.8	113
125				122.72	156.25	96.3	123
130				132.73	169.00	104	133
140				153.94	196.00	121	154
150				176.72	225.00	139	177
160	-	-	±2.0	201.06	256.00	158	201
170				226.98	289.00	178	227
180				254.47	324.00	200	254
190				283.53	361.00	223	283
200	-	-	±2.5	314.16	400.00	247	314
220				380.13	-	298	-
250				490.88	-	385	-