异形钢管  MTY50×25

边长公差(mm

壁厚
mm

壁厚公差
mm

理论重量Kg/m

截面积
cm²

惯性矩L
cm4

抗弯截面系数W cm³

惯性半径I
cm

50

25

±1.5

±1.5

0.8

±0.15

0.852

0.9

±0.15

0.957

1

±0.15

1.060

1.2

±0.15

1.267

1.4

±0.15

1.471

1.5

±0.15

1.572

1.6

±0.15

1.673

1.8

±0.15

1.873

2

±8%

2.071

2.3

±8%

2.365

2.4

±8%

2.462

2.5

±8%

2.558

2.75

±8%

2.797

3

±8%

3.033

3.2

±8%

3.220

3.25

±8%

3.266



JT48×41.50

边长公差(mm

壁厚
mm

壁厚公差
mm

理论重量
Kg/m

截面积
cm²

惯性矩L
cm4

抗弯截面系数W cm³

惯性半径I
cm

35壁厚
mm

壁厚公差
mm

理论重量
Kg/m

48

41.5

±1.5

±1.5

1

±0.15

1.294

1.2

±0.15

1.547

1.4

±0.15

1.798

1.5

±0.15

1.922

1.6

±0.15

2.047

1.8

±0.15

2.294

2

±8%

2.539

2.3

±8%

2.902

2.4

±8%

3.023

2.5

±8%

3.142

2.75

±8%

3.440

3

±8%

3.734

3.2

±8%

3.967

3.25

±8%

4.025