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热轧圆钢和方钢的尺寸及理论重量(GB/T 702—2008) |
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圆钢公称直径d 方钢公称边长a/mm |
理论重量/kg·m-1 |
圆钢公称直径d 方钢公称边长a/mm |
理论重量/kg·m-1 |
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圆钢 |
方钢 |
圆钢 |
方钢 |
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5.5 |
0.186 |
0.237 |
56 |
19.3 |
24.6 |
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6 |
0.222 |
0.283 |
58 |
20.7 |
26.4 |
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6.5 |
0.260 |
0.332 |
60 |
22.2 |
28.3 |
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7 |
0.302 |
0.385 |
63 |
24.5 |
31.2 |
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8 |
0.395 |
0.502 |
65 |
26.0 |
33.2 |
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9 |
0.499 |
0.636 |
68 |
28.5 |
36.3 |
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10 |
0.617 |
0.785 |
70 |
30.2 |
38.5 |
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|
11 |
0.746 |
0.950 |
75 |
34.7 |
44.2 |
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|
12 |
0.888 |
1.13 |
80 |
39.5 |
50.2 |
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|
13 |
1.04 |
1.33 |
85 |
44.5 |
56.7 |
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|
14 |
1.21 |
1.54 |
90 |
49.9 |
63.6 |
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15 |
1.39 |
1.77 |
95 |
55.6 |
70.8 |
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16 |
1.58 |
2.01 |
100 |
61.7 |
78.5 |
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17 |
1.78 |
2.27 |
105 |
68.0 |
86.5 |
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18 |
2.00 |
2.54 |
110 |
74.6 |
95.0 |
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19 |
2.23 |
2.83 |
115 |
81.5 |
104 |
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20 |
2.47 |
3.14 |
120 |
88.8 |
113 |
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21 |
2.72 |
3.46 |
125 |
96.3 |
123 |
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22 |
2.98 |
3.80 |
130 |
104 |
133 |
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23 |
3.26 |
4.15 |
135 |
112 |
143 |
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24 |
3.55 |
4.52 |
140 |
121 |
154 |
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25 |
3.85 |
4.91 |
145 |
130 |
165 |
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26 |
4.17 |
5.31 |
150 |
139 |
177 |
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27 |
4.49 |
5.72 |
155 |
148 |
189 |
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28 |
4.83 |
6.15 |
160 |
158 |
201 |
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29 |
5.18 |
6.60 |
165 |
168 |
214 |
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30 |
5.55 |
7.06 |
170 |
178 |
227 |
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31 |
5.92 |
7.54 |
180 |
200 |
254 |
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32 |
6.31 |
8.04 |
190 |
223 |
283 |
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33 |
6.71 |
8.55 |
200 |
247 |
314 |
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34 |
7.13 |
9.07 |
210 |
272 |
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35 |
7.55 |
9.62 |
220 |
298 |
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36 |
7.99 |
10.2 |
230 |
326 |
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38 |
8.90 |
11.3 |
240 |
355 |
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40 |
9.86 |
12.6 |
250 |
385 |
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42 |
10.9 |
13.8 |
260 |
417 |
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45 |
12.5 |
15.9 |
270 |
449 |
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48 |
14.2 |
18.1 |
280 |
483 |
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50 |
15.4 |
19.6 |
290 |
518 |
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53 |
17.3 |
22.0 |
300 |
555 |
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|
55 |
18.6 |
23.7 |
310 |
592 |
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注:表中钢的理论重量是按密度为7.85g/cm3计算。 |
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热轧圆钢和方钢通常长度及短尺长度 |
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钢 类 |
通 常 长 度 |
短尺长度/m 不小于 |
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截面公称尺寸/mm |
钢棒长度/m |
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普通质量钢 |
≤25 |
4~12 |
2.5 |
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>25 |
3~12 |
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优质及特殊质量钢 |
全部规格 |
2~12 |
1.5 |
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碳素和合金工具钢 |
≤75 |
2~12 |
1.0 |
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>75 |
1~8 |
0.5(包括高速工具钢全部规格) |
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