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推荐的钢索拧角β（GB/T13828—1992）
钢索股数m
|
tc/d
|
8
|
9
|
10
|
11
|
12
|
13
|
14
|
3
|
β
|
24.97˚
|
22.37˚
|
20.25˚
|
18.49˚
|
17.00˚
|
15.74˚
|
14.64˚
|
dc/d
|
2.19
|
2.18
|
2.17
|
2.17
|
2.17
|
2.17
|
2.16
|
|
4
|
β
|
31.13˚
|
27.78˚
|
25.08˚
|
22.85˚
|
20.99˚
|
—
|
—
|
dc/d
|
2.54
|
2.51
|
2.49
|
2.48
|
2.47
|
—
|
—
|
