冷弯等边角钢的基本尺寸与主要参数(GB/T 6723—2017)

规    格

尺寸/mm

理论质量

/(kg/m)

截面面积

/cm²

重心Y₀

/cm

惯性矩/cm⁴

回转半径/cm

截面系数/cm³

b×b×t

b

t

I_X＝I_Y

I_u

I_v

r_x＝r_y

r_u

r_v

W_ymax＝

W_xmax

W_ymin＝

W_xmin

20×20×1.2

20

1.2

0.354

0.451

0.559

0.179

0.292

0.066

0.630

0.804

0.385

0.321

0.124

20×20×2.0

2.0

0.566

0.721

0.599

0.278

0.457

0.099

0.621

0.796

0.371

0.464

0.198

30×30×1.6

30

1.6

0.714

0.909

0.829

0.817

1.328

0.307

0.948

1.208

0.581

0.986

0.376

30×30×2.0

2.0

0.880

1.121

0.849

0.998

1.626

0.369

0.943

1.204

0.573

1.175

0.464

30×30×3.0

3.0

1.274

1.623

0.898

1.409

2.316

0.503

0.931

1.194

0.556

1.568

0.671

40×40×1.6

40

1.6

0.965

1.229

1.079

1.985

3.213

0.758

1.270

1.616

0.785

1.839

0.679

40×40×2.0

2.0

1.194

1.521

1.099

2.438

3.956

0.919

1.265

1.612

0.777

2.218

0.840

40×40×2.5

2.5

1.47

1.87

1.132

2.96

4.85

1.07

1.26

1.61

0.76

2.62

1.03

40×40×3.0

3.0

1.745

2.223

1.148

3.496

5.710

1.282

1.253

1.602

0.759

3.043

1.226

50×50×2.0

50

2.0

1.508

1.921

1.349

4.848

7.845

1.850

1.588

2.020

0.981

3.593

1.327

50×50×2.5

2.5

1.86

2.37

1.381

5.93

9.65

2.20

1.58

2.02

0.96

4.29

1.64

50×50×3.0

3.0

2.216

2.823

1.398

7.015

11.414

2.616

1.576

2.010

0.962

5.015

1.948

50×50×4.0

4.0

2.894

3.686

1.448

9.022

14.755

3.290

1.564

2.000

0.944

6.229

2.540

60×60×2.0

60

2.0

1.822

2.321

1.599

8.478

13.694

3.262

1.910

2.428

1.185

5.302

1.926

60×60×2.5

2.5

2.25

2.87

1.630

10.41

16.90

3.91

1.90

2.43

1.17

6.38

2.38

60×60×3.0

3.0

2.687

3.423

1.648

12.342

20.028

4.657

1.898

2.418

1.166

7.486

2.836

60×60×4.0

4.0

3.522

4.486

1.698

15.970

26.030

5.911

1.886

2.408

1.147

9.403

3.712

70×70×3.0

70

3.0

3.158

4.023

1.898

19.853

32.152

7.553

2.221

2.826

1.370

10.456

3.891

70×70×4.0

4.0

4.150

5.286

1.948

25.799

41.944

9.654

2.209

2.816

1.351

13.242

5.107

75×75×2.5

75

2.5

2.84

3.62

2.005

20.65

33.43

7.87

2.39

3.04

1.48

10.30

3.76

75×75×3.0

3.0

3.39

4.31

2.031

24.47

39.70

9.23

2.38

3.03

1.46

12.05

4.47

80×80×4.0

80

4.0

4.778

6.086

2.198

39.009

63.299

14.719

2.531

3.224

1.555

17.745

6.723

80×80×5.0

5.0

5.895

7.510

2.247

47.677

77.622

17.731

2.519

3.214

1.536

21.209

8.288

100×100×4.0

100

4.0

6.034

7.686

2.698

77.571

125.528

29.613

3.176

4.041

1.962

28.749

10.623

100×100×5.0

5.0

7.465

9.510

2.747

95.237

154.539

35.335

3.164

4.031

1.943

34.659

13.132

150×150×6.0

150

6.0

13.458

17.254

4.062

391.442

635.468

147.415

4.763

6.069

2.923

96.367

35.787

150×150×8.0

8.0

17.685

22.673

4.169

508.593

830.207

186.979

4.736

6.051

2.872

121.994

46.957

150×150×10

10

21.783

27.927

4.277

619.211

1016.638

221.785

4.709

6.034

2.818

144.777

57.746

200×200×6.0

200

6.0

18.138

23.254

5.310

945.753

1529.328

362.177

6.377

8.110

3.947

178.108

64.381

200×200×8.0

8.0

23.925

30.673

5.416

1237.149

2008.393

465.905

6.351

8.091

3.897

228.425

84.829

200×200×10

10

29.583

37.927

5.522

1516.787

2472.471

561.104

6.324

8.074

3.846

274.681

104.765

250×250×8.0

250

8.0

30.164

38.672

6.664

2453.559

3970.580

936.538

7.965

10.133

4.921

368.181

133.811

250×250×10

10

37.383

47.927

6.770

3020.384

4903.304

1137.464

7.939

10.114

4.872

446.142

165.682

250×250×12

12

44.472

57.015

6.876

3568.836

5812.612

1325.061

7.912

10.097

4.821

519.028

196.912

300×300×10

300

10

45.183

57.927

8.018

5286.52

8559.138

2013.367

9.553

12.155

5.896

659.298

240.481

300×300×12

12

53.832

69.015

8.124

6263.069

10167.49

2358.645

9.526

12.138

5.846

770.934

286.299

300×300×14

14

62.022

79.516

8.277

7182.256

11740.00

2624.502

9.504

12.150

5.745

867.737

330.629

300×300×16

16

70.312

90.144

8.392

8095.516

13279.70

2911.336

9.477

12.137

5.683

964.671

374.654