热轧等边角钢.doc

热轧等边角钢（GB／T9787--1988）
(1)尺寸规格见表1。 (2)允许偏差见表2。 表1  热轧等边角钢的尺寸规格
角钢号数
尺  寸／mm
截面面积 /mm
理论质量／(kg／m)
外表面积／(m2／m)
参考数值
X-X
Xo-Xo
Yo-Yo
X1-Xl
zo／cm
b
d
r
Ix/cm4
ix／cm
Wx／ cm3
ixo/cm
ixo／ Cm
Wxo/ cm3
1yo/ cm4
iyo／cm
Wyo／ cm3
Ix1/ cm4
2
20
34
3.5
1.132 1.459
0.889 1.145
0.078 0.077
O.40 O.50
0.59 O.58
0.29 O.36
0.63 O.78
0.75 0.73
0.45 0.55
0.17 O.22
O.39 0.38
O.20 0.24
O.81 1.09
O.60 0.64
2.5
25
34
1.432 1.859
1.124 1.459
0.098 O.097
0.82 1.03
0.76 O.74
0.46 O.59
1.29 1.62
O.95 O.93
0.73 O.92
O.34 0.43
0.49 O.48
O.33 0.40
1.57 2.11
0.73 O.76
3.0
30
34
4.5
1.749 2.276
1.373 1.786
O.117 0.117
1.46 1.84
O.9l 0.90
O.68 0.87
2.3l 2.92
1.15 1.13
1.09 1.37
O.61 0.77
0.59 O.58
O.51 O.62
2.7l 3.63
0.85 O.89
3.6
36
345
2.109 2.756 3.382
1.656 2.163 2.654
O.14l 0.141 O.141
2.58 3.29 3.95
1.1l 1.09 1.08
O.99 1.28 1.56
4.09 5.22 6.24
1.39 1.38 1.36
1.6l 2.05 2.45
1.07 1.37 1.65
0.7l 0.70 O.70
O.76 O.93 1.09
4.68 6.25 7.84
1.00 1.04 1.07
4
40
345
5
2.359  3.086 3.791
1.852 2.422 2.976
O.157 0.157 O.156
3.59 4.60 5.53
1.23 1.22 1.21
1.23 1.60 1.96
5.69 7.29 8.76
1.55 1.54 1.52
2.01 2.58 3.10
1.49 1.91 2.30
O.79 0.79 O.78
O.96 1.19 1.39
6.4l 8.56 10.74
1.09 1.13 1.17
4.5
45
3456
5
2.659 3.486 4.292 5.076
2.088 2.736 3.369 3.985
0.177 O.177 0.176 O.176
5.17 6.65 8.04 9.33
1.40 1.38 1.37 1.36
1.58 2.05 2.51 2.95
8.20 10.56 12.74 14.76
1.76 1.74 1.72 1.70
2.58 3.32 4.00 4.64
2.14 2.75 3.33 3.89
0.89 0.89 0.88 0.88
1.24 1.54 1.8l 2.06
9.12 12.18 15.25 18.36
1.22 1.26 1.30 1.33
5
50
3456
5.5  
2.97l 3.897 4.803 5.688
2.332 3.059 3.770 4.465
O.197 O.197 O.196 0.196
7.18 9.26 11.2l 13.05
1.55 1.54 1.53 1.52
1.96 2.56 3.13 3.68
11.37 14.70 17.79 20.68
1.96 1.94 1.92 1.91
3.22 4.16 5.03 5.85
2.98 3.82 4.64 5.42
1.00 0.99 O.93 0.93
1.57 1.96 2.3l 2.63
12.50 16.69 20.90 25.14
1.34 1.38 1.42 1.46
5.6  
56  
3458
6
3.343 4.390 5.415 8.367
2.624 3.446 4.251 6.568
0.22l 0.220 O.220 O.219
10.19 13.18 16.02 23.63
1.75 1.73 1.72 1.68
2.48 3.24 3.97 6.03
16.14 20.92 25.42 37.37
2.20 2.18 2.17 2.11
4.08 5.28 6.42 9.44
4.24 5.46 6.61 9.89
1.13 1.11 1.10 1.09
2.02 2.52 2.98 4.16
17.56 23.43 29.33 47.24
1.48 1.53 1.57 1.68
6.3
63
4568lO
7
4.978 6.143 7.288 9.515 11.657
3.907 4.822 5.721 7.469 15l
0.248 O.248 O.247 O.247 O.246
19.03 23.17 27.12 34.46 41.09
1.96 1.94 1.93 1.90 1.88
4.13 5.08 6.oo 7.75 9.39
30.17 36.77 43.03 54.56 64.85
2.46 2.45 2.43 2.40 2.36
6.78 8.25 9.66 12.25 14.56
7.89 9.57 11.20 14.33 17.33
1.26 1.25 1.24 1.23 1.22
3.29 3.90 4.46 5.47 6.36
33.35 41.73 50.14 67.1l 84.31
1.70 1.74 1.78 1.85 1.93
7
70
45678
8
5.570 6.875 8.160 9.424 10.667
4.372 5.397 6.406 7.398 8.373
0.275 O.275 O.275 O.275 0.274
26.39 32.21 37.77 43.09 48.17
2.18 2.16 2.15 2.14 2.12
5.14 6.32 7.48 8.59 9.68
41.80 51.08 59.93 68.35 76.37
2.76 2.73 2.7l 2.69 2.68
8.44 10.32 12.1l 13.81 15.43
lO.99 13.34 15.6l 17.82 19.98
1.40 1.39 1.38 1.38 1.37
4.17 4.95 5.67 6.34 6.98
45.74 57.21 68.73 80.29 91.92
1.86 1.91 1.95 1.99 2.03
(7.5)
75
567810
9
7.412 8.797 10.160 11.503 14.126
5.818 6.905 7.976 9.030 11.089
0.295 O.294 O.294 O.294 0.293
39.97 46.95 53.57 59.96 71.98
2.33 2.31 2.30 2.28 2.26
7.32 8.64 9.93 11.20 13.64
63.30 74.38 84.96 95.07 113.92
2.92 2.90 2.89 2.88 2.84
11.94 14.02 16.02 17.93 21.48
16.63 19.51 22.18 24.86 30.05
1.50 1.49 1.48 1.47 1.46
5.77 6.67 7.44 8.19 9.56
70.56 84.55 98.71 112.97 141.71
2.04 2.07 2.11 2.15 2.22
8
80
567810

7.912 9.397 10.86 12.303 15.126
6.211 7.376 8.525 9.658 11.874
O.315 O.314 0.314 0.314 0.313
48.79 57.35 65.58 73.49 88.43
2.48 2.47 2.46 2.44 2.42
8.34 9.87 11.37 12.83 15.64
77.33 90.98 104.07 116.6 140.09
3.13 3.11 3.10 3.08 3.04
13.67 16.08 18.40 20.6l 24.76
20.25 23.72 27.09 30.39 36.77
1.60 1.59 1.58 1.57 1.56
6.66 7.65 8.58 9.46 11.08
85.36 102.50 119.70 136.97 171.74
2.15 2.19 2.23 2.27 2.35
9
90
678lO12
10
lO.637 12.301 13.944 17.167 20.306
8.350 9.656 10.946 13.476 15.94
O.354 O.354 O.353 0.353 O.352
B2.77 94.83 106.47 128.58 149.22
2.79 2.78 2.76 2.74 2.71
12.61 14.54 16.42 20.07 23.57
131.26 150.47 168.97 203.9 236.21
3.51 3.50 3.48 3.45 3.41
20.63 23.64 26.55 32.04 37.12
34.28 39.18 43.97 53.26 62.22
1.80 1.78 1.78 1.76 1.75
9.95 11.19 12.35 14.52 16.49
145.87 170.30 194.80 244.07 293.76
2.44 2.48 2.52 2.59 2.67
1O
100
67810121416
12
11.932 13.796 15.638 19.261 22.80 26.256 29.627
9.366 10.830 12.276 15.120 17.898 20.611 23.257
O.393 O.393 0.393 0.392 O.391 O.391 0.390
114.95 131.86 148.24 179.51 208.90 236.53 262.53
3.10 3.09 3.08 3.05 3.03 3.00 2.98
15.68 18.10 20.47 25.06 29.48 33.73 37.82
181.98 208.97 235.07 284.68 330.95 374.06 414.16
3.90 3.89 3.88 3.84 3.81 3.77 3.74
25.74 29.55 33.24 40.26 46.80 52.90 58.57
47.92 54.74 61.41 74.35 86.84 99.00 110.89
2.00 1.99 1.98 1.96 1.95 1.94 1.94
12.69 14.26 15.75 18.54 21.08 23.44 25.63
200.07 233.54 267.09 334.48 402.34 470.75 539.80
2.67 2.71 2.76 2.84 2.91 2.99 3.06
11
110
78101214
15.196 17.238 21.26l 25.200 29.056
11.928 13.532 16.690 19.782 22.809
0.433 0.433 0.432 0.43l 0.43l
177.16 199.46 242.19 282.55 320.71
3.41 3.40 3.38 3.35 3.32
22.05 24.95 30.60 36.05 41.31
280.94 316.49 384.39 448.17 508.01
4.30 4.28 4.25 4.22 4.18
36.12 40.69 49.42 57.62 65.31
73.38 82.42 99.98 116.93 133.40
2.20 2.19 2.17 2.15 2.14
17.51 19.39 22.91 26.15 29.14
310.64 355.20 444.65 534.60 625.16
2.96 3.01 3.09 3.16 3.24
12.5
125
8101214
14
19.750 24.373 28.912 33.367
15.504 19.133 22.696 26.193
O.492 O.49l 0.491 O.490
297.03 361.67 423.16 481.65
3.88 3.85 3.83 3.80
32.52  39.97 41.17 54.16
470.89  573.89 671.44 763.73
4.88 4.85 4.82 4.78
53.28 64.93 75.96 86.41
123.16 149.46 174.88 199.57
2.50 2.48 2.46 2.45
25.86 30.62 35.03 39.13
521.01 651.93 783.42 915.61
3.37 3.45 3.53 3.61
14
140
10121416

27.373 32.512 37.567 42.539
21.488 25.522 29.490 33.393
0.551 0.551 O.550 O.549
514.65 603.68 688.81 770.24
4.34 4.31 4.28 4.26
50.58 59.80 68.75 77.46
817.27 958.79 1093.56 122l.81
5.46 5.43 5.40 5.36
82.56 96.85 110.47 123.42
212.04 248.57 284.06 318.67
2.78 2.76 2.75 2.74
39.20 45.02 50.45 55.55
915.11 1099.28 1284.22 1470.07
3.82 3.90 3.98 4.06
16
160
lO121416
      16
31.502 37.44l 43.296 49.067
24.729 29.391 33.987 38.518
0.630 O.630 O.629 0.629
779.53 916.58 1048.36 1175.08
4.98 4.95 4.92 4.89
66.70 78.98 90.95 102.63
1237.30 1455.68 1665.02 1865.57
6.27 6.24 6.20 6.17
109.36 128.67 147.17 164.89
321.76 377.49 431.70 484.59
3.20 3.18 3.16 3.14
52.76 60.74 68.24 75.31
1365.33 1639.57 1914.68 2190.82
4.31 4.39 4.47 4.55
18
180
12141618
42.241 48.896 55.467 61.955
33.159 38.383 43.542 48.634
0.710 0.709 0.709 0.709
1321.35 1514.48 1700.99 1875.12
5.59 5.56 5.54 5.50
100.82 116.25 131.13 145.64
2100.10 2407.42 2703.37 2988.24
7.05 7.02 6.98 6.94
165.00 189.14 212.40 234.78
542.61 621.53 698.60 762.0l
3.58 3.58 3.55 3.51
78.41 88.38 97.83 105.14
2332.80 2723.48 3115.29 3502.43
4.89 4.97 5.05 5.13
20
200
1416182024
    18  
54.642 62.013 69.301 76.505 90.661
42.894 48.680 54.401 60.056 71.168
0.788 0.788 O.787 0.787 O.785
2103.55 2366.15 2620.64 2867.30 3338.25
6.20 6.18 6.15 6.12 6.07
144.70 163.65 182.22 200.42 236.17
3343.26 3760.89 4164.54 4554.55 5294.97
7.82 7.79 7.75 7.72 7.64
236.40 265.93 294.48 322.06 374.41
863.83 971.41 1076.74 1180.04 1381.53
3.98 3.96 3.94 3.93 3.90
111.82 123.96 135.52 146.55 166.55
3734.10 4270.39 4808.13 5347.51 6457.16
5.46 5.54 5.62 5.69 5.87
注：截面图中的r1=1/3d及表中r 表2  热轧等边角钢的允许偏差和长度
角钢号数
边宽b／mm
边厚d／mm
长度／m
角钢号数
边宽b／mm
边厚d／mm
长度／m
2～5.6 6 .3～9
±O.8 士1.2
±0.4 士O.6
4～12 4～12
10～14 16～20
±1.8 土2.5
±0.7 士1.O
4～19 6～19