下限

上限

铜

铝

铜

铝

铜

铝

2×0.75

1

0.6

3.8×5.9

4.6×7.1

24.5

-

12.5

-

41.5

-

2×1.0

1

0.6

3.9×6.1

4.8×7.4

18.1

-

15

-

48.1

-

2×1.5

1

0.7

4.4×7.0

5.3×8.5

12.1

-

19

-

63.7

-

2×2.5

1

0.8

5.1×8.4

6.2×10.1

7.41

12.1

26

20

94.3

63.5

2×4

1

0.8

5.6×9.2

6.7×11.1

4.61

7.41

36

26

127

78.5

2×4

7

0.8

5.7×9.5

6.9×11.5

4.61

-

36

26

133

-

2×6

1

0.8

6.2×10.4

7.5×12.5

3.08

4.61

47

33

174

100

2×6

7

0.8

6.4×10.8

7.8×13.0

3.08

-

47

33

181

-

2×10

7

1.0

7.9×13.4

9.5×16.2

1.83

3.08

65

51

278

162

3×0.75

1

0.6

3.8×7.9

4.6×9.6

24.5

-

9

-

58.6

-

3×1.0

1

0.6

3.9×8.4

4.8×10.1

18.1

-

11

-

68.4

-

3×1.5

1

0.7

4.4×9.6

5.3×11.7

12.1

-

14

-

91.5

-

3×2.5

1

0.8

5.1×11.6

6.2×14.0

7.41

12.1

20

16

135

89.0

3×4

1

0.8

5.8×13.1

7.0×15.8

4.61

7.41

26

22

190

116

3×4

7

0.8

5.9×13.5

7.1×16.3

4.61

-

26

22

198

-

3×6

1

0.8

6.2×14.5

7.5×17.5

3.08

4.61

32

25

255

144

3×6

7

0.8

6.4×15.1

7.8×18.2

3.08

-

32

25

264

-

3×10

7

1.0

7.9×19.0

9.5×23.0

1.83

3.08

52

40

408

234