0u.1013209.4.1O6O质4.23.1420O1允0.55228543O3下228示..8.3钢距638m10.0.2...8.／14O82.论高64607
2694钢4对328...l-613面84213.021715.3.18354.59019507g.030265.204231..5的512O712积方674-.度1
对037315.1101-4.1算63..8.61.／255.O..621.8.c.4.0O6．586263允959..82.0.5.0423..886度p90．51
冷拉圆钢、方钢、六角钢的尺寸规格 2.52在.35的5017084.2l4...79.1理OO38相3.4.边0.132.321表..78。72质4..71.0257000794..85.4.4235
尺寸／mm | 圆 钢 | 方 钢 | 六角钢 | |||
截面面积／mm2 | 理论质量／(kg／m) | 截面面积／mm² | 理论质量／(kg／m) | 截面面积／mm² | 理论质量／(kg／m) | |
3.0 | 7.069 | 0.0555 | 9.000 | O.0706 | 7.794 | O.0612 |
3.2 | 8.042 | O.063l | 10.24 | 0.0804 | 8.868 | O.0696 |
3.5 | 9.621 | O.0755 | 12.25 | O.0962 | 10.6l | O.0833 |
4.O | 12.57 | 0.0986 | 16.00 | 0.126 | 13.86 | 0.109 |
4.5 | 15.90 | O.125 | 20.25 | O.159 | 17.54 | O.138 |
5.0 | 19.83 | 0.154 | 25.00 | O.196 | 21.65 | O.170 |
5.5 | 23.76 | O.187 | 30.25 | 0.237 | 26.20 | 0.206 |
6.O | 28.27 | O.222 | 36.00 | 0.283 | 31.18 | 0.245 |
6.3 | 31.17 | O.245 | 39.69 | O.312 | 34.37 | O.270 |
7.O | 38.48 | O.302 | 49.00 | O.385 | 42.44 | O.333 |
7.5 | 44.18 | O.347 | 56.25 | O.442 |
|
|
8.0 | 50.27 | 0.395 | 64.00 | 0.502 | 55.43 | O.435 |
8.5 | 56.75 | 0.445 | 72.25 | 0.567 |
|
|
9.O | 63.62 | O.499 | 81.00 | O.636 | 70.15 | 0.55l |
9.5 | 70.88 | O.556 | 90.25 | O.708 |
|
|
10.0 | 78.54 | 0.617 | 100.O | 0.785 | 86.60 | O.680 |
10.5 | 86.59 | O.680 | 110.2 | O.865 |
|
|
11.0 | 95.03 | O.746 | 121.0 | O.950 | 104.8 | 0.823 |
11.5 | 103.9 | 0.815 | 132.2 | 1.04 |
|
|
12.0 | 113.1 | O.888 | 144.O | 1.13 | 124.7 | O.979 |
13.O | 132.7 | 1.04 | 169.0 | 1.33 | 146.4 | 1.15 |
14.O | 153.9 | 1.21 | 196.O | 1.54 | 169.7 | 1.33 |
15.O | 176.7 | 1.39 | 225.O | 1.77 | 194.9 | 1.53 |
16.O | 201.1 | 1.58 | 256.0 | 2.01 | 221.7 | 1.74 |
17.0 | 227.0 | 1.78 | 289.0 | 2.27 | 250.3 | 1.96 |
18.0 | 254.5 | 2.00 | 324.0 | 2.54 | 280.6 | 2.20 |
19.0 | 283.5 | 2.23 | 361.O | 2.83 | 312.6 | 2.45 |
20.0 | 314.2 | 2.47 | 400.O | 3.14 | 346.4 | 2.72 |
21.O | 346.4 | 2.72 | 441.O | 3.46 | 381.9 | 3.00 |
22.O | 380.1 | 2.98 | 484.0 | 3.80 | 419.2 | 3.29 |
24.0 | 452.4 | 3.55 | 576.O | 4.52 | 498.8 | 3.92 |
25.O | 490.9 | 3.85 | 625.O | 4.91 | 541.3 | 4.25 |
26.O | 530.9 | 4.17 | 676.O | 5.31 | 585.4 | 4.60 |
28.O | 615.8 | 4.83 | 784.O | 6.15 | 679.O | 5.33 |
30.O | 706.9 | 5.55 | 900.O | 7.06 | 779.4 | 6.12 |
32.0 | 804.2 | 6.3l | 102.4 | 8.04 | 886-8 | 6.96 |
34.O | 907.9 | 7.13 | 1156 | 9.07 | 1001 | 7.86 |
35.O | 962.1 | 7.55 | 1225 | 9.62 |
| 1 |
36.O |
|
|
|
| 1122 | 8.81 |
38.O | 1134 | 8.90 | 1444 | 11.3 | 125l | 9.82 |
40.0 | 1257 | 9.86 | 1600 | 12.6 | 1386 | 10.9 |
42.0 | 1385 | 10.9 | 1764 | 13.8 | 1528 | 12.O 1 |
45.O | 1590 | 12.5 | 2025 | 15.9 | 1754 | 13.8 |
48.O | 1810 | 14.2 | 2304 | 18.1 | 19915 | 15.7 |
50.0 | 1968 | 15.4 | 2500 | 19.6 | 2165 | 17.O |
52.O | 2206 | 17.3 | 2809 | 22.0 | 2433 | 19.1 |
55.O |
|
|
|
| 2620 | 20.5 |
56.0 | 2463 | 19.3 | 3136 | 24.6 |
|
|
60.O | 2827 | 22.2 | 3600 | 28.3 | 3118 | 24.5 |
63.O | 3117 | 24.5 | 3969 | 31.2 |
|
|
65.0 |
|
|
|
| 3654 | 28.7 |
67.0 | 3526 | 27.7 | 4489 | 35.2 |
|
|
70.O | 3848 | 30.2 | 4900 | 38.5 | 4244 | 33.1 |
75.0 | 4418 | 34.7 | 5625 | 44.2 | 4871 | 38.2 |
80.O | 5027 | 39.5 | 6400 | 50.2 | 5543 | 43.5 |
注：1.表内尺寸-栏，对圆钢表示直径，对方钢表示边长，对六角钢表示对边距离。以下各表相同。
2.表中理论质量按密度为7.85g／cm3计算。对高合金钢计算理沦质量时应采用相应牌号的密度。
10613301.1.5.4O5的.57..04182523054232.O.957.5576O／-6201039O.3742291612431.139466.227
优质结构钢冷拉扁钢（YB/T037-1993）1071123..1偏5O3.2115。.质1.O.1.663.20115.11.021.1O密839O223.7.0.60021008522.314572钢.35／
_52476许.g8559.9允1.68.8201412305723643c6g1时318313.122对3时4c.660．4O636拉0.8532规4.28O5.8
扁钢的尺寸规格 5.03.u3387为1239326094尺8218568.径8扁9953m1表6..1O10pl.．).6O835476.091368472198.3050s1.2
扁钢宽度 ／mm | 在下列厚度时扁钢的理论质量／(kg／m) | ||||||||||||||
5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 14 | 15 | 16 | 18 | 20 | 25 | 30 | |
8 | O．31 | 0.38 | 0.44 |
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lO | 0.39 | O．47 | 0.55 | O．63 | O．71 |
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12 | O．47 | O．55 | O．66 | 0.75 | 0.85 | 0.94 | 1.04 |
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13 | O．51 | O．6l | O．71 | 0.82 | O．92 | 1.02 | 1.12 |
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14 | 0.55 | O．66 | 0.77 | 0.88 | 0.99 | 1.10 | 1.2l | 1.32 |
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15 | 0.59 | O．71 | 0.82 | O．94 | 1.06 | 1.18 | 1.29 | 1.41 |
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16 | O．63 | 0.75 | O．88 | 1.00 | 1.13 | 1.26 | 1.38 | 1.5l | 1.76 |
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18 | 0.7l | O．85 | O．99 | 1.13 | 1.27 | 1.41 | 1.55 | 1.70 | 1.96 | 2.12 | 2.26 |
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|
20 | 0.78 | O．94 | 1.10 | 1.26 | 1.41 | 1.57 | 1.73 | 1.88 | 2.28 | 2.36 | 2.51 | 2.63 |
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22 | 0.86 | 1.04 | 1.2l | 1.38 | 1.55 | 1.73 | 1.90 | 2.07 | 2.42 | 2.69 | 2.76 | 3.11 | 3.45 |
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24 | O．94 | 1.13 | 1.32 | 1.5l | 1．69 | 1.88 | 2.07 | 2.26 | 2.64 | 2.83 | 3.01 | 3.39 | 3.77 |
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|
扁钢宽度 ／mm | 在下列厚度时扁钢的理论质量／(kg／m) | ||||||||||||||
5 | 6 | 7 | 8 | 9 | 10 | 1l | 12 | 14 | 15 | 16 | 18 | 20 | 25 | 30 | |
25 | O．98 | 1.18 | 1.37 | 1.57 | 1.77 | 1.96 | 2.16 | 2.36 | 2.75 | 2.94 | 3.14 | 3.53 | 3.92 |
|
|
28 | 1.10 | 1.32 | 1.54 | 1.76 | 1.98 | 2.20 | 2.42 | 2.64 | 3.08 | 3.28 | 3.52 | 3.96 | 4.40 | 5.49 |
|
30 | 1.18 | 1.41 | 1.65 | 1.88 | 2.12 | 2.36 | 2.59 | 2.83 | 3.30 | 3.53 | 3.77 | 4.24 | 4.7l | 5.89 |
|
32 |
| 1.5l | 1.76 | 2.01 | 2.26 | 2.51 | 2.76 | 3.Ol | 3.52 | 3.77 | 4.02 | 5.02 | 5.02 | 6.28 | 7.54 |
35 |
| 1.65 | 1.92 | 2.19 | 2.47 | 2.75 | 3.02 | 3.29 | 3.85 | 4.12 | 4.39 | 4.95 | 5.49 | 6.87 | 8.24 |
36 |
| 1.70 | 1.98 | 2.26 | 2.54 | 2.83 | 3.11 | 3.39 | 3.96 | 4.24 | 4.52 | 5.09 | 5.65 | 7.06 | 8.48 |
38 |
|
| 2.09 | 2.39 | 2.68 | 2.98 | 3.28 | 3.58 | 4.18 | 4.47 | 4.77 | 5.37 | 5.97 | 7.46 | 8.95 |
40 |
|
| 2.20 | 2.5l | 2.83 | 3.14 | 3.45 | 3.77 | 4.40 | 4.71 | 5.02 | 5.65 | 6.20 | 7.85 | 9.42 |
45 |
|
|
| 2.83 | 3.18 | 3.53 | 3.89 | 4.24 | 4.95 | 5.29 | 5.65 | 6.36 | 7.06 | 8.83 | lO．60 |
50 |
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|
| 3.53 | 3.92 | 4.32 | 4.7l | 5.50 | 5.89 | 6.28 | 7.06 | 7.85 | 9.81 | 11.78 |
注：表中的理论质量是按相对密度为7．85g／cm³计算的。
(2)允许偏差见表4_11。
表4_11扁钢的允许偏差 (mm)
扁钢厚度及宽度 | 允许偏差级别 | ||
10(h10) | 11(h11) | 12(h12) | |
允许偏差 | |||
≤6 | O 0.048 | 0 -0.075 | 0 -0.12 |
>6～lO | O -0.058 | 0 -0.090 | 0 -0.15 |
>10～18 | 0 -0.070 | 0 -0.110 | O -O．18 |
>18～30 | 0 -0.084 | 0 -0.130 | O -O．21 |
>30～50 | O -O．100 | O -0.160 | 0 -0.25 |
