直径(mm)

截面面积(cm2)

理论重量   (kg/m)

5

0.1963

0.089

5.6

0.2463

0.091

6

0.2827

0.127

6.3

0.3117

0.141

7

0.3848

0.173

8

0.5027

0.224

9

0.6359

0.283

10

0.7854

0.350

11

0.9503

0.424

12

1.131

0.504

13

1.327

0.592

14

1.539

0.686

15

1.767

0.786

16

2.011

0.896

17

2.270

1.012

18

2.545

1.134

19

2.835

1.264

20

3.142

1.416

21

3.464

1.544

22

3.801

1.694

24

4.524

2.016

25

4.909

2.188

26

5.809

2.366

28

6.158

2.744

30

7.069

3.186

32

8.042

3.625

34

9.079

4.093

36

10.18

4.588

38

11.34

5.054

40

12.57

5.664

42

13.85

6.174

45

15.90

7.169

48

18.10

8.157

50

19.64

8.851

53

22.06

9.945

56

24.63

11.102

60

28.27

12.745

63

31.17

14.051

65

33.18

14.958

70

38.48

17.347

75

44.18

19.914

80

50.27

22.658

85

56.75

25.578

90

63.62

28.676

95

70.88

31.951

100

78.54

35.404

105

86.59

39.012

110

95.03

42.837

120

113.10

50.980

125

122.72

55.316

130

132.73

59.830

140

153.72

69.389

150

176.72

79.656

160

201.06

90.630

170

226.98

102.313

180

254.47

114.704

190

283.53

127.803

200

314.16

141.610