冷弯不等边角钢的基本尺寸与主要参数(GB/T 6723—2017)

规　 格

尺寸/mm

理论重量

/(kg/m)

截面面积

/cm²

重心/cm

惯性矩/cm⁴

B×b×t

B

b

t

Y₀

X₀

I_x

I_y

I_u

I_v

30×20×2.0

30

20

2.0

0.723

0.921

1.011

0.490

0.860

0.318

1.014

0.164

30×20×3.0

3.0

1.039

1.323

1.068

0.536

1.201

0.441

1.421

0.220

50×30×2.5

50

30

2.5

1.473

1.877

1.706

0.674

4.962

1.419

5.597

0.783

50×30×4.0

4.0

2.266

2.886

1.794

0.741

7.419

2.104

8.395

1.128

60×40×2.5

60

40

2.5

1.866

2.377

1.939

0.913

9.078

3.376

10.665

1.790

60×40×4.0

4.0

2.894

3.686

2.023

0.981

13.774

5.091

16.239

2.625

70×40×3.0

70

40

3.0

2.452

3.123

2.402

0.861

16.301

4.142

18.092

2.351

70×40×4.0

4.0

3.208

4.086

2.461

0.905

21.038

5.317

23.381

2.973

80×50×3.0

80

50

3.0

2.923

3.723

2.631

1.096

25.450

8.086

29.092

4.444

80×50×4.0

4.0

3.836

4.886

2.688

1.141

33.025

10.449

37.810

5.664

100×60×3.0

100

60

3.0

3.629

4.623

3.297

1.259

49.787

14.347

56.038

8.096

100×60×4.0

4.0

4.778

6.086

3.354

1.304

64.939

18.640

73.177

10.402

100×60×5.0

5.0

5.895

7.510

3.412

1.349

79.395

22.707

89.566

12.536

150×120×6.0

150

120

6.0

12.054

15.454

4.500

2.962

362.949

211.071

475.645

98.375

150×120×8.0

8.0

15.813

20.273

4.615

3.064

470.343

273.077

619.416

124.003

150×120×10

10

19.443

24.927

4.732

3.167

571.010

331.066

755.971

146.15

200×160×8.0

200

160

8.0

21.429

27.473

6.000

3.950

1147.099

667.089

1503.275

310.914

200×160×10

10

24.463

33.927

6.115

4.051

1403.661

815.267

1846.212

372.716

200×160×12

12

31.368

40.215

6.231

4.154

1648.244

956.261

2176.288

428.217

250×220×10

250

220

10

35.043

44.927

7.188

5.652

2894.335

2122.346

4102.990

913.691

250×220×12

12

41.664

53.415

7.299

5.756

3417.040

2504.222

4859.116

1062.097

250×220×14

14

47.826

61.316

7.466

5.904

3895.841

2856.311

5590.119

1162.033

300×260×12

300

260

12

50.088

64.215

8.686

6.638

5970.485

4218.566

8347.648

1841.403

300×260×14

14

57.654

73.916

8.851

6.782

6835.520

4831.275

9625.709

2041.085

300×260×16

16

65.320

83.744

8.972

6.894

7697.062

5438.329

10876.951

2258.440

规　 格

回转半径/cm

截面系数/cm³

B×b×t

r_x

r_y

r_u

r_v

W_{x max}

W_{x min}

W_{y max}

W_{y min}

30×20×2.0

0.966

0.587

1.049

0.421

0.850

0.432

0.648

0.210

30×20×3.0

0.952

0.577

1.036

0.408

1.123

0.621

0.823

0.301

50×30×2.5

1.625

0.869

1.726

0.645

2.907

1.506

2.103

0.610

50×30×4.0

1.603

0.853

1.705

0.625

4.134

2.314

2.838

0.931

60×40×2.5

1.954

1.191

2.117

0.867

4.682

2.235

3.694

1.094

60×40×4.0

1.932

1.175

2.098

0.843

6.807

3.463

5.184

1.686

70×40×3.0

2.284

1.151

2.406

0.867

6.785

3.545

4.810

1.319

70×40×4.0

2.268

1.140

2.391

0.853

8.546

4.635

5.872

1.718

80×50×3.0

2.614

1.473

2.795

1.092

9.670

4.740

7.371

2.071

80×50×4.0

2.599

1.462

2.781

1.076

12.281

6.218

9.151

2.708

100×60×3.0

3.281

1.761

3.481

1.323

15.100

7.427

11.389

3.026

100×60×4.0

3.266

1.749

3.467

1.307

19.356

9.772

14.289

3.969

100×60×5.0

3.251

1.738

3.453

1.291

23.263

12.053

16.830

4.882

150×120×6.0

4.846

3.696

5.548

2.532

80.655

34.567

71.260

23.354

150×120×8.0

4.817

3.670

5.528

2.473

101.916

45.291

89.124

30.559

150×120×10

4.786

3.644

5.507

2.421

120.670

55.611

104.536

37.481

200×160×8.0

6.462

4.928

7.397

3.364

191.183

81.936

168.883

55.360

200×160×10

6.432

4.902

7.377

3.314

229.544

101.092

201.251

68.229

200×160×12

6.402

4.876

7.356

3.263

264.523

119.707

230.202

80.724

250×220×10

8.026

6.873

9.556

4.510

402.662

162.494

375.504

129.823

250×220×12

7.998

6.847

9.538

4.459

468.151

193.042

435.063

154.163

250×220×14

7.971

6.825

9.548

4.353

521.811

222.188

483.793

177.455

300×260×12

9.642

8.105

11.402

5.355

687.369

280.120

635.517

217.879

300×260×14

9.616

8.085

11.412

5.255

772.288

323.208

712.367

251.393

300×260×16

9.587

8.059

11.397

5.193

857.898

366.039

788.850

284.640