对边距离s/mm

允许偏差/mm

截面面积/cm2

理论质量(kg/m)

1组

2组

3组

六角钢

八角钢

六角钢

八角钢

8

±O.25

±0.35

±O.40

O.5543

0.435

9

O.7015

0.551

10

0.866

0.680

11

1.048

0.823

12

1.247

O.979

13

1.464

1.15

14

1.697

1.33

15

1.949

1.53

16

2.217

2.120

1.74

1.66

17

2.503

1.96

18

2.806

2.683

2.20

2.16

19

3.126

2.45

20

3.464

3.312

2.72

2.60

21

±O.30

±O.40

±0.50

3.819

3.00

22

4.192

4.008

3.29

3.15

23

4.581

3.60

24

4.988

3.92

25

5.413

5.175

4.25

4.06

26

5.854

4.60

27

6.314

4.96

28

6.790

6.492

5.33

5.10

30

7.794

7.452

6.12

5.85

32

±O.40

±O.50

±0.60

8.868

8.479

6.96

6.66

34

1　O.011

9.572

7.86

7.51

36

11.223

10.731

8.81

8.42

38

12.505

11.956

9.82

9.39

40

13.86

13.25

10.88

10.40

42

±0.40

±O.50

±O.60

15.28

11.99

45

17.54

13.77

48

19.95

15.66

50

21.65

17.00

53

24.33

19.10

56

27.16

21.32

58

29.13

22.87

60

±O.60

±0.70

±O.80

31.18

24.50

--

63

34.37

26.98

65

36.59

28.72

68

40.04

31.43

70

42.43

33.30