2024年5月15日发(作者：守明轩)
钢铁标准
热轧槽钢（GB／T707～1988）
(1)尺寸规格。
热轧槽钢的尺寸规格
尺 寸／mm 参考数值
理论Y1-Y
截面X-X y-y
质量 1
zo
型
面积
号
h b d t r r1
／(kg
／
ixiy
／em2
Wx/c1x/cWy/cIy／Iy／
／m)
cm
／／
m3 m4 m3 cm4 cm4
cm cm
31.91.11.3
5 50 4.5 7．O 7．O 3.5 6.928 5.438 10.4 26．O3.55 8.3 20.9
7 4 0 5
42.41.11.3
6.3 63 4.8 7.5 7.5 3.8 8.451 6.634 16.1 50.8 4.50 11.928.4
0 5 6 9
41O．23.11.21.4
8 80 5.0 8.0 8．O 4．O8.045 25.3 101 5.79 16.637.4
3 48 5 7 3
10412.7410．03.91.41.5
10 5.3 8.5 8.5 4.2 39.7 198 7.80 25.654.9
0 8 8 07 5 1 2
12.12515.6912.314.91.51.5
5.5 9．O 9．O 4.5 62.1 391 10.2 38．O77.1
6 6 3 2 8 5 7 9
14518.5114.535.51.71.7
14a 6.0 9.5 9.5 4.8 80.5 564 13．O53.2107
0 8 6 5 2 0 1
14621.3116.735.31.61.6
14b 8.0 9.5 9.5 4.8 87.1 609 14.1 61.1121
0 0 6 3 5 9 7
16621.9617.246.21.81_8
16a 6.5 10．O10．O5.0 108 866 16.3 73.3144
0 3 2 0 8 3 0
16625.1619.756.11.81.7
16 8.5 10.0 10.0 5.0 117 935 17.6 83.4161
0 5 2 2 0 2 5
18a 1867．O 1O．510.5 5.2 25.6920.17141 1270 7.020．O98.61.9190 1.8
0 8 9
18729.29
18 9．O 1O．510.5 5.2
0 0 9
20728.83
20a 7.0 11.0 11．O5.5
0 3 7
20732.83
20 9．O 11．O11．O5.5
0 5 7
22731.84
22a 7．O 11.5 11.5 5.8
0 7 6
尺 寸／mm
4
23.00
0
22.63
7
25.77
7
24.99
9
4
6.8
152 1370
4
7.8
178 1780
6
7.6
191 1910
4
8.6
218 2390
7
6
1.9
21.5 11
5
2.1
24.2 128
1
2.0
25.9 144
9
2.2
28.2 158
3
8
1.8
210
4
2.0
244
1
1.9
268
5
2.1
298
0
参考数值
理论
Y1-
截面质量 X-X y-y
型Y1
zo
面积 ／
号
h b d t r r1
ixIyiyIy
／
／em2 (kg
Wx/c1x/cWy/c
／／／／
cm
／m)
m3 m4 m3
cm cm4 cm cm4
5.431.91.120.1.3
5 50 37 4.5 7．O7．O3.5 6.928 10.4 26．O3.55 8.3
8 4 0 9 5
11.11.36.2428.48.42.22.0
22 220 79 9.0 5.8 234 2570 30.1 176 326
5 5 6 53 2 1 3
2512.1234.9127.49.82.22.0
250 78 7．O6．O270 3370 30.6 176 322
a 0 ．O 7 10 2 4 7
251212.39.9131.39.42.21.9
250 80 9.0 6．O282 3530 32.7 196 353
b ．O 0 7 35 1 2 8
2511121244.9135.29.02.21.9
250 82 6.0 295 3690 35.9 218 384
c ．O ．O ．O 7 60 7 1 2
2812.i2.40.0331.41O2.32．
280 82 7.5 6.2 340 4760 35.7 218 388
a 5 5 4 27 ．9 3 1O
2812.12.45.6335.81O2.32.0
280 84 9.5 6.2 366 5130 37.9 242 428
b 5 5 4 23 ．6 0 2
2811.12.12.51.2340.210.2.21.9
280 86 6.2 393 5500 40.3 268 463
c 5 5 5 4 19 4 9 5
321414.48.5138.012.2.52.2
320 88 8.0 7.0 475 7600 46.5 305 552
a ．O 0 3 83 5 0 4
321O141454.9143.112.2.42.1
320 90 7.0 509 8140 49.2 336 593
b ．0 ．O ．O 3 07 2 7 6
32121414.61.3148.111.2.42.0
320 92 7．O543 8690 52.6 374 643
e ．O ．O 0 3 31 9 7 9
3616.1660.9147.8119014.2.72.4
360 96 9．O8.0 660 63.5 455 818
a 0 ．O 6 14 0 0 3 4
361116.1668.1153.4127013.2.72.3
360 98 8.0 703 66.9 497 880
b ．O 0 ．O 0 66 0 6 0 7
3636．O75.3159.1746 134013.70.0 536 2.6948 2.3
c 1 0 ．O ．O ．O O 18 0 4 7
401010.181875.0658.9176015.2.8
400 9.0 879 78.8 592
a 0 5 ．O ．O 8 28 0 3 1
401012.18.18.83.0665.21860152.7
400 9．O932 82.5 640
b 2 5 0 0 8 08 0 ．O 8
401014.18.1891.0671.4197014.2.7
400 9．O986 86.2 688
c 4 5 0 ．O 8 88 0 7 5
6.6.702.5121.1
17．O 3.8 8.547 55.2 4.59
①
65 40 4.8 7.5 7.5
5 9 4 ．O 9
1215.3612.04.737.1.5
120 53 5.5 9．O9.0 4.5 57.7 346 10.2
①
2 59 5 4 6
2412.1234.2126.89.42.2
78 7．O6.0 254 3050 30.5 174
①
240
a 0 ．O 7 60 5 5
24121239.0130.69.12.2
240 80 9．O6.0 274 3280 32.5 194
①
b ．O ．O 7 28 7 3
2411.12.1243.8134.38.92.2
82 6.0 293 3510 34.4 213
①
240
c 0 0 ．O 7 96 6 1
2712.12.39.2830.810.2.3
270 82 7.5 6.2 323 4360 35.5 216
①
a 5 5 4 38 5 4
2712.12.4.4.635.010.2.3
84 9.5 6.2 347 4690 37.7 239
①
270
b 5 5 84 77 3 1
2711.12.12.50.0839.310.2.2
270 86 6.2 372 5020 39.8 261
c
①
5 5 5 4 16 1 8
3013.13.43.9034.411.2.4
85 7.5 6.8 403 6050 41.1 260
①
300
a 5 5 2 63 7 3
3013.13.49.9039.111.2.4
300 87 9.5 6.8 433 6500 44．O289
①
h 5 5 2 73 4 1
3011.13.13.55.9043.811.2.3
89 6.8 463 6950 46.4 316
①
300
c 5 5 5 2 83 2 8
① 经供需双方协议可以供应的型号。
(2)允许偏差
热轧槽钢的尺寸允许偏差 (mm)
型
56.36.58 101212.614 161820 323640
号
高
±
度±1.5 ±2．O ±3.0 ±3.0
2．O
h
腿
±
宽±1.5 士2．O ±3.0 土3.5
2.5
b
腰±0.4 ±0.5 土±O．7 土O．8
4
1072.4
0 9
1142.4
0 4
1222.4
0 2
28.1.3
3 8
77.1.6
7 2
2.1
325
0
2.0
355
3
2.0
388
0
2.1
393
3
2.0
428
6
2.0
467
3
2.1
467
7
2.1
515
3
2.0
560
9
厚
d
弯腰挠度
通常长度
5～12m
O．6
不应超过O．15d
5～
19m
6～19m
2024年5月15日发(作者：守明轩)
钢铁标准
热轧槽钢（GB／T707～1988）
(1)尺寸规格。
热轧槽钢的尺寸规格
尺 寸／mm 参考数值
理论Y1-Y
截面X-X y-y
质量 1
zo
型
面积
号
h b d t r r1
／(kg
／
ixiy
／em2
Wx/c1x/cWy/cIy／Iy／
／m)
cm
／／
m3 m4 m3 cm4 cm4
cm cm
31.91.11.3
5 50 4.5 7．O 7．O 3.5 6.928 5.438 10.4 26．O3.55 8.3 20.9
7 4 0 5
42.41.11.3
6.3 63 4.8 7.5 7.5 3.8 8.451 6.634 16.1 50.8 4.50 11.928.4
0 5 6 9
41O．23.11.21.4
8 80 5.0 8.0 8．O 4．O8.045 25.3 101 5.79 16.637.4
3 48 5 7 3
10412.7410．03.91.41.5
10 5.3 8.5 8.5 4.2 39.7 198 7.80 25.654.9
0 8 8 07 5 1 2
12.12515.6912.314.91.51.5
5.5 9．O 9．O 4.5 62.1 391 10.2 38．O77.1
6 6 3 2 8 5 7 9
14518.5114.535.51.71.7
14a 6.0 9.5 9.5 4.8 80.5 564 13．O53.2107
0 8 6 5 2 0 1
14621.3116.735.31.61.6
14b 8.0 9.5 9.5 4.8 87.1 609 14.1 61.1121
0 0 6 3 5 9 7
16621.9617.246.21.81_8
16a 6.5 10．O10．O5.0 108 866 16.3 73.3144
0 3 2 0 8 3 0
16625.1619.756.11.81.7
16 8.5 10.0 10.0 5.0 117 935 17.6 83.4161
0 5 2 2 0 2 5
18a 1867．O 1O．510.5 5.2 25.6920.17141 1270 7.020．O98.61.9190 1.8
0 8 9
18729.29
18 9．O 1O．510.5 5.2
0 0 9
20728.83
20a 7.0 11.0 11．O5.5
0 3 7
20732.83
20 9．O 11．O11．O5.5
0 5 7
22731.84
22a 7．O 11.5 11.5 5.8
0 7 6
尺 寸／mm
4
23.00
0
22.63
7
25.77
7
24.99
9
4
6.8
152 1370
4
7.8
178 1780
6
7.6
191 1910
4
8.6
218 2390
7
6
1.9
21.5 11
5
2.1
24.2 128
1
2.0
25.9 144
9
2.2
28.2 158
3
8
1.8
210
4
2.0
244
1
1.9
268
5
2.1
298
0
参考数值
理论
Y1-
截面质量 X-X y-y
型Y1
zo
面积 ／
号
h b d t r r1
ixIyiyIy
／
／em2 (kg
Wx/c1x/cWy/c
／／／／
cm
／m)
m3 m4 m3
cm cm4 cm cm4
5.431.91.120.1.3
5 50 37 4.5 7．O7．O3.5 6.928 10.4 26．O3.55 8.3
8 4 0 9 5
11.11.36.2428.48.42.22.0
22 220 79 9.0 5.8 234 2570 30.1 176 326
5 5 6 53 2 1 3
2512.1234.9127.49.82.22.0
250 78 7．O6．O270 3370 30.6 176 322
a 0 ．O 7 10 2 4 7
251212.39.9131.39.42.21.9
250 80 9.0 6．O282 3530 32.7 196 353
b ．O 0 7 35 1 2 8
2511121244.9135.29.02.21.9
250 82 6.0 295 3690 35.9 218 384
c ．O ．O ．O 7 60 7 1 2
2812.i2.40.0331.41O2.32．
280 82 7.5 6.2 340 4760 35.7 218 388
a 5 5 4 27 ．9 3 1O
2812.12.45.6335.81O2.32.0
280 84 9.5 6.2 366 5130 37.9 242 428
b 5 5 4 23 ．6 0 2
2811.12.12.51.2340.210.2.21.9
280 86 6.2 393 5500 40.3 268 463
c 5 5 5 4 19 4 9 5
321414.48.5138.012.2.52.2
320 88 8.0 7.0 475 7600 46.5 305 552
a ．O 0 3 83 5 0 4
321O141454.9143.112.2.42.1
320 90 7.0 509 8140 49.2 336 593
b ．0 ．O ．O 3 07 2 7 6
32121414.61.3148.111.2.42.0
320 92 7．O543 8690 52.6 374 643
e ．O ．O 0 3 31 9 7 9
3616.1660.9147.8119014.2.72.4
360 96 9．O8.0 660 63.5 455 818
a 0 ．O 6 14 0 0 3 4
361116.1668.1153.4127013.2.72.3
360 98 8.0 703 66.9 497 880
b ．O 0 ．O 0 66 0 6 0 7
3636．O75.3159.1746 134013.70.0 536 2.6948 2.3
c 1 0 ．O ．O ．O O 18 0 4 7
401010.181875.0658.9176015.2.8
400 9.0 879 78.8 592
a 0 5 ．O ．O 8 28 0 3 1
401012.18.18.83.0665.21860152.7
400 9．O932 82.5 640
b 2 5 0 0 8 08 0 ．O 8
401014.18.1891.0671.4197014.2.7
400 9．O986 86.2 688
c 4 5 0 ．O 8 88 0 7 5
6.6.702.5121.1
17．O 3.8 8.547 55.2 4.59
①
65 40 4.8 7.5 7.5
5 9 4 ．O 9
1215.3612.04.737.1.5
120 53 5.5 9．O9.0 4.5 57.7 346 10.2
①
2 59 5 4 6
2412.1234.2126.89.42.2
78 7．O6.0 254 3050 30.5 174
①
240
a 0 ．O 7 60 5 5
24121239.0130.69.12.2
240 80 9．O6.0 274 3280 32.5 194
①
b ．O ．O 7 28 7 3
2411.12.1243.8134.38.92.2
82 6.0 293 3510 34.4 213
①
240
c 0 0 ．O 7 96 6 1
2712.12.39.2830.810.2.3
270 82 7.5 6.2 323 4360 35.5 216
①
a 5 5 4 38 5 4
2712.12.4.4.635.010.2.3
84 9.5 6.2 347 4690 37.7 239
①
270
b 5 5 84 77 3 1
2711.12.12.50.0839.310.2.2
270 86 6.2 372 5020 39.8 261
c
①
5 5 5 4 16 1 8
3013.13.43.9034.411.2.4
85 7.5 6.8 403 6050 41.1 260
①
300
a 5 5 2 63 7 3
3013.13.49.9039.111.2.4
300 87 9.5 6.8 433 6500 44．O289
①
h 5 5 2 73 4 1
3011.13.13.55.9043.811.2.3
89 6.8 463 6950 46.4 316
①
300
c 5 5 5 2 83 2 8
① 经供需双方协议可以供应的型号。
(2)允许偏差
热轧槽钢的尺寸允许偏差 (mm)
型
56.36.58 101212.614 161820 323640
号
高
±
度±1.5 ±2．O ±3.0 ±3.0
2．O
h
腿
±
宽±1.5 士2．O ±3.0 土3.5
2.5
b
腰±0.4 ±0.5 土±O．7 土O．8
4
1072.4
0 9
1142.4
0 4
1222.4
0 2
28.1.3
3 8
77.1.6
7 2
2.1
325
0
2.0
355
3
2.0
388
0
2.1
393
3
2.0
428
6
2.0
467
3
2.1
467
7
2.1
515
3
2.0
560
9
厚
d
弯腰挠度
通常长度
5～12m
O．6
不应超过O．15d
5～
19m
6～19m