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

0.0706

7.794

0.0612

3.2

8.042

0.063l

10.24

0.0804

8.868

0.0696

3.5

9.621

0.0755

12.25

0.0962

10.6l

0.0833

4.0

12.57

0.0986

16.00

0.126

13.86

0.109

4.5

15.90

0.125

20.25

0.159

17.54

0.138

5.0

19.83

0.154

25.00

0.196

21.65

0.170

5.5

23.76

0.187

30.25

0.237

26.20

0.206

6.0

28.27

0.222

36.00

0.283

31.18

0.245

6.3

31.17

0.245

39.69

0.312

34.37

0.270

7.0

38.48

0.302

49.00

0.385

42.44

0.333

7.5

44.18

0.347

56.25

0.442

8.0

50.27

0.395

64.00

0.502

55.43

0.435

8.5

56.75

0.445

72.25

0.567

9.0

63.62

0.499

81.00

0.636

70.15

0.55l

9.5

70.88

0.556

90.25

0.708

10.0

78.54

0.617

100.0

0.785

86.60

0.680

10.5

86.59

0.680

110.2

0.865

11.0

95.03

0.746

121.0

0.950

104.8

0.823

11.5

103.9

0.815

132.2

1.04

12.0

113.1

0.888

144.0

1.13

124.7

0.979

13.0

132.7

1.04

169.0

1.33

146.4

1.15

14.0

153.9

1.21

196.0

1.54

169.7

1.33

15.0

176.7

1.39

225.0

1.77

194.9

1.53

16.0

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

361.0

2.83

312.6

2.45

20.0

314.2

2.47

400.0

3.14

346.4

2.72

21.0

346.4

2.72

441.0

3.46

381.9

3.00

22.0

380.1

2.98

484.0

3.80

419.2

3.29

24.0

452.4

3.55

576.0

4.52

498.8

3.92

25.0

490.9

3.85

625.0

4.91

541.3

4.25

26.0

530.9

4.17

676.0

5.31

585.4

4.60

28.0

615.8

4.83

784.0

6.15

679.0

5.33

30.0

706.9

5.55

900.0

7.06

779.4

6.12