无缝钢管

基本尺寸

截面面积

理论重量^a

惯性矩

截面模数

A

S

F

G

J_x=J_y

W_x=W_y

mm

cm²

kg/m

cm⁴

cm³

12

0.8

0.347

0.273

0.072

0.119

1

0.423

0.332

0.084

0.140

14

1

0.503

0.395

0.139

0.199

1.5

0.711

0.558

0.181

0.259

16

1

0.583

0.458

0.216

0.270

1.5

0.831

0.653

0.286

0.357

18

1

0.663

0.520

0.315

0.351

1.5

0.951

0.747

0.424

0.471

2

1.211

0.951

0.505

0.561

20

1

0.743

0.583

0.442

0.442

1.5

1.071

0.841

0.601

0.601

2

1.371

1.076

0.725

0.725

2.5

1.643

1.290

0.817

0.817

22

1

0.823

0.646

0.599

0.544

1.5

1.191

0.935

0.822

0.748

2

1.531

1.202

1.001

0.910

2.5

1.843

1.447

1.140

1.036

25

1.5

1.371

1.077

1.246

0.997

2

1.771

1.390

1.535

1.228

2.5

2.143

1.682

1.770

1.416

3

2.485

1.951

1.955

1.564

30

2

2.171

1.704

2.797

1.865

3

3.085

2.422

3.670

2.447

3.5

3.500

2.747

3.996

2.664

4

3.885

3.050

4.256

2.837

32

2

2.331

1.830

3.450

2.157

3

3.325

2.611

4.569

2.856

3.5

3.780

2.967

4.999

3.124

4

4.205

3.301

5.351

3344

35

2

2.571

2.018

4.610

2.634

3

3.685

2.893

6.176

3.529

3.5

4.200

3.297

6.799

3.5885

4

4.685

3.678

7.324

4.185

36

2

2.651

2.081

5.148

28.04

3

3.0805

2.987

6.785

3.769

4

4.845

3.804

8.076

4.487

5

5.771

4.530

8.975

4.986

40

2

2.971

3.332

7.075

3.537

3

4.285

3.364

9.622

4.811

4

5.485

4.306

11.60

5.799

5

6.571

5.158

13.06

6.532

42

2

3.131

2.458

8.265

3.936

3

4.525

3.553

11.30

5.380

4

5.805

4.557

13.69

6.519

5

6.971

5.472

15.51

7.385

45

2

3.371

2.646

10.29

4.574

3

4.885

3.835

14.16

6.293

4

6.285

4.934

17.28

7.679

5

7.571

5.943

19.72

8.763

50

2

3.771

2.960

14.36

5.743

3

5.485

4.306

19.94

7.975

4

7.085

5.562

24.56

9.826

5

8.571

6.728

28.32

11.33

55

2

4.171

3.274

19.38

7.046

3

6.085

4.777

27.11

9.857

4

7.885

6.190

33.66

12.24

5

9.571

7.513

39.11

14.22

60

3

6.685

5.248

35.82

11.94

4

8.685

6.818

44.75

17.45

5

10.57

8.298

52.35

19.57

6

12.34

9.688

58.72

14.22

65

3

7.285

5.719

46.22

17.86

4

9.485

7.446

58.05

21.01

5

11.57

9.083

68.29

23.70

6

13.54

10.63

77.03

16.70

70

3

7.885

6.190

58.46

16.70

4

10.29

8.074

73.76

21.08

5

12.57

9.868

87.18

24.91

6

14.74

11.57

98.81

28.23

75

4

11.09

8.702

92.08

24.55

5

13.57

10.65

109.3

29.14

6

15.94

12.51

124.4

33.16

8

19.79

15.54

141.4

37.72

80

4

11.89

9.330

113.2

28.30

5

14.57

11.44

134.8

33.70

6

17.14

13.46

154.0

38.49

8

21.39

16.79

177.2

44.30

90

4

13.49

10.59

164.7

36.59

5

16.57

13.01

197.2

43.82

6

19.54

15.34

226.6

50.35

8

24.59

19.30

265.8

59.06

100

5

18.57

14.58

276.4

55.27

6

21.94

17.22

319.0

63.80

8

27.79

21.82

379.8

75.95

10

33.42

26.24

432.6

86.52

108

5

20.17

15.83

351.1

65.39

6

23.86

18.73

408.9

75.72

8

30.35

23.83

491.4

91.00

10

36.62

28.75

546.3

104.5

120

6

26.74

20.99

573.1

95.51

8

34.19

26.84

696.8

116.1

10

41.42

32.52

807.9

134.7

12

48.13

37.78

897.0

149.5

125

6

27.94

21.93

652.7

104.4

8

35.79

28.10

797.0

127.5

10

43.42

34.09

927.2

148.3

12

50.53

39.67

1033.2

165.3

130

6

29.14

22.88

739.5

113.8

8

37.39

29.35

906.3

139.4

10

45.42

35.66

1057.6

162.7

12

52.93

41.55

1182.5

181.9

140

6

31.54

24.76

935.3

133.6

8

40.59

31.86

1153.9

164.8

10

49.42

38.8.

1354.1

193.4

12

57.73

45.32

1522.8

217.5

150

8

43.79

34.38

1443.0

192.4

10

53.42

41.94

1701.2

226.8

12

62.53

49.09

1922.6

256.3

14

71.11

55.82

2109.2

281.2

160

8

46.99

36.89

1776.7

222.1

10

57.42

45.08

2103.1

262.9

12

67.33

52.86

2386.8

298.4

14

76.71

60.22

2630.1

328.8

180

8

53.39

41.91

2590.7

287.9

10

65.42

41.36

3086.9

343.0

12

76.93

60.39

3527.6

392.0

14

87.91

69.01

3915.3

435.0

200

10

73.42

57.64

4337.6

433.8

12

86.53

67.93

4983.6

498.4

14

99.11

77.80

5562.3

556.2

16

111.2

87.27

6076.4

607.6

250

10

93.42

73.34

8841.9

707.3

12

110.5

86.77

10254.2

820.3

14

127.1

99.78

11556.2

924.5

16

143.2

112.4

12751.4

1020.1

280

10

105.4

82.76

12648.9

903.5

12

124.9

98.07

14726.8

1051.9

14

143.9

113.0

16663.5

1190.2

16

162.4

127.5

18462.8

1318.8

^a当S≤6mm时，R=1.5S，方型钢管理论重量推荐计算公式见式（A.1）；当S＞6mm时，R=2S，方形钢管理论重量推荐计算公式见式（A.2）。

G=0.015 7S(2A-2.858 4S)....................（A.1）

G=0.015 7S(2A-3.287 6S)....................（A.2）

G——矩形钢管的理论重量（钢的密度按7.85kg/dm³），单位为公斤每米（kg/m）；

A——矩形钢管的长、宽，单位为毫米（mm）；

S——矩形钢管的公称壁厚，单位为毫米（mm）。

基本尺寸

截面面积F/cm²

理论质量G/kg·m^-1

惯性矩

截面系数

A

B

S

J_x

J_y

W_x

W_y

/mm

/cm⁴

/cm³

10

5

0.8

0.203

0.160

0.007

0.022

0.028

0.045

1

0.243

0.191

0.008

0.025

0.031

0.050

12

6

0.8

0.251

0.197

0.013

0.041

0.044

0.069

1

0.303

0.238

0.015

0.047

0.050

0.079

14

7

1

0.362

0.285

0.026

0.080

0.073

0.115

1.5

0.501

0.394

0.080

0.099

0.229

0.141

2

0.611

0.480

0.031

0.106

0.090

0.151

10

1

0.423

0.332

0.062

0.106

0.123

0.151

1.5

0.591

0.464

0.077

0.134

0.154

0.191

2

0.731

0.574

0.085

0.149

0.169

0.231

16

8

1

0.423

0.332

0.041

0.126

0.102

0.157

1.5

0.591

0.464

0.050

0.159

0.124

0.199

2

0.731

0.574

0.053

0.177

0.133

0.221

12

1

0.502

0.395

0.108

0.171

0.18

0.213

1.5

0.711

0.558

0.139

0.222

0.232

0.278

2

0.891

0.700

0.158

0.256

0.264

0.319

18

9

1

0.483

0.379

0.060

0.185

0.134

0.206

1.5

0.681

0.535

0.076

0.240

0.168

0.266

2

0.851

0.668

0.084

0.273

0.186

0.304

14

1

0.583

0.458

0.173

0.258

0.248

0.286

1.5

0.831

0.653

0.228

0.342

0.326

0.380

2

1.051

0.825

0.266

0.402

0.380

0.446

20

10

1

0.543

0.426

0.086

0.262

0.172

0.262

1.5

0.771

0.606

0.110

0.110

0.219

0.110

2

0.971

0.762

0.124

0.400

0.248

0.400

12

1

0.583

0.458

0.031

0.298

0.220

0.298

1.5

0.831

0.653

0.172

0.396

0.287

0.396

2

1.051

0.825

0.199

0.465

0.331

0.465

25

10

1

0.643

0.505

0.106

0.465

0.213

0.372

1.5

0.921

0.723

0.137

0.624

0.274

0.499

2

1.171

0.919

0.156

0.740

0.313

0.592

18

1

0.803

0.630

0.417

0.696

0.463

0.557

1.5

1.161

0.912

0.567

0.956

0.630

0.765

2

1.491

1.171

0.685

1.164

0.761

0.931

30

15

1.5

1.221

0.959

0.435

1.324

0.580

0.883

2

1.571

1.233

0.521

1.619

0.695

1.079

2.5

1.893

1.486

0.584

1.850

0.779

1.233

20

1.5

1.371

1.007

0.859

1.629

0.859

1.086

2

1.771

1.390

1.050

2.012

1.050

1.340

2.5

2.143

1.682

1.202

2.324

1.202

1.549

35

15

1.5

1.371

1.077

0.504

1.969

0.672

1.125

2

1.771

1.390

0.607

2.429

0.809

1.388

2.5

2.143

1.682

0.683

2.803

0.911

1.602

25

1.5

1.671

1.312

1.661

2.811

1.329

1.606

2

2.171

1.74

2.066

3.520

1.652

2.011

2.5

2.642

2.075

2.405

4.126

1.924

2.358

40

11

1.5

1.401

1.100

0.276

2.341

0.501

1.170

20

2

2.171

1.704

1.376

4.184

1.376

2.092

2.5

2.642

2.075

1.587

4.903

1.587

2.452

3

3.085

2.422

1.756

5.506

1.756

2.753

30

2

2.571

2.018

3.582

5.629

2.388

2.815

2.5

3.143

2.467

4.220

6.664

2.813

3.332

3

3.685

2.893

4.768

7.564

3.179

3.782

50

25

2

2.771

2.175

2.861

8.595

2.289

3.438

3

3.985

3.129

3.781

11.64

3.025

4.657

4

5.085

3.992

4.424

13.96

3.540

5.583

40

2

3.371

2.646

8.520

12.05

4.260

4.821

3

4.885

3.826

11.68

16.62

5.840

6.648

4

6.285

4.934

14.20

20.32

7.101

8.128

60

30

2

3.371

2.646

5.153

15.35

3.435

5.117

3

4.885

3.825

6.964

21.18

4.643

7.061

4

6.285

4.934

8.344

25.90

5.562

8.635

40

2

3.771

2.960

9.965

18.72

4.983

6.239

3

5.485

4.306

13.74

26.06

6.869

8.687

4

7.085

5.562

16.80

32.19

8.402

10.729

70

35

2

3.971

3.117

8.426

24.95

4.815

7.130

3

5.785

4.542

11.57

34.87

6.610

9.964

4

7.485

5.876

14.09

43.23

8.051

12.35

50

3

6.685

5.248

26.57

44.98

10.63

12.85

4

8.685

6.818

33.05

56.32

13.22

16.09

5

10.57

8.298

38.48

66.01

15.39

18.86

80

40

3

6.685

5.248

17.85

53.47

8.927

13.37

4

8.685

6.818

22.01

66.95

11.00

16.74

5

10.57

8.298

25.40

78.45

12.70

19.61

60

4

10.29

8.074

57.32

90.07

19.11

22.52

5

12.57

9.868

67.52

106.6

22.51

26.65

6

14.74

11.57

76.28

121.0

25.43

30.26

90

50

3

7.885

6.190

33.21

83.39

13.28

18.53

4

10.29

8.074

41.53

105.4

16.61

23.43

5

12.57

9.868

48.65

124.8

19.46

27.74

70

4

11.89

9.330

91.21

135.0

26.06

30.01

5

14.57

11.44

108.3

161.0

30.96

35.78

6

15.94

12.51

123.5

184.1

35.27

40.92

100

50

3

8.485

6.661

36.53

108.4

14.61

21.67

4

11.09

8.702

45.78

137.5

18.31

27.50

5

13.57

10.65

53.73

163.4

21.49

32.69

80

4

13.49

10.59

136.3

192.8

34.08

38.57

5

16.57

13.01

163.0

231.2

40.74

46.24

6

19.54

15.34

186.9

265.9

46.72

53.18

120

60

4

13.49

10.59

82.45

245.6

27.48

40.94

5

16.57

13.01

97.85

294.6

32.62

49.10

6

19.54

15.34

111.4

338.9

37.14

56.49

80

4

15.09

11.84

159.4

299.5

39.86

49.91

6

21.94

17.22

219.8

417.0

54.95

69.49

8

27.79

21.82

260.5

495.8

65.12

82.63

140

70

6

23.14

18.17

185.1

558.0

52.88

79.71

8

29.39

23.07

219.1

665.5

62.59

95.06

10

35.43

27.81

247.2

761.4

70.62

108.8

120

6

29.14

22.88

651.1

827.5

108.5

118.2

8

37.39

29.35

191.3

1014.4

132.9

144.9

10

45.43

35.66

929.2

1184.7

154.9

169.2

150

75

6

24.94

19.58

231.7

696.2

61.80

92.82

8

31.79

24.96

276.7

837.4

73.80

111.7

10

38.43

30.16

314.7

956.0

83.91

128.7

100

6

27.94

21.93

451.7

851.8

90.35

113.6

8

35.79

28.10

549.5

1039.3

109.9

138.6

10

43.43

34.09

635.9

1210.4

127.2

161.4

160

60

6

24.34

19.11

146.6

713.1

48.85

89.14

8

30.99

24.33

172.5

851.7

57.50

106.5

10

37.43

29.38

193.2

976.4

64.40

122.1

80

6

26.74

20.99

285.7

855.5

71.42

106.9

8

34.19

26.84

343.8

1036.7

85.94

129.6

10

41.43

32.52

393.5

1201.7

98.37

150.2

180

80

6

29.14

22.88

318.6

1152.6

79.65

128.1

8

37.39

29.35

385.4

1406.5

96.35

156.3

10

45.43

35.66

442.8

1640.3

110.7

182.3

100

8

40.59

31.87

651.3

1643.4

130.3

182.6

10

49.43

38.80

757.9

1929.6

151.6

214.4

12

57.73

45.32

845.3

2170.6

169.1

241.2

200

80

8

40.59

31.87

427.1

1851.1

106.8

185.1

12

57.73

45.32

543.4

2435.4

135.9

243.5

14

65.51

51.43

582.2

2650.7

145.6

265.1

120

8

46.99

36.89

1098.9

2441.3

183.2

244.1

12

67.33

52.86

1459.2

3284.8

243.2

328.5

14

76.71

60.22

1598.7

3621.2

266.4

362.1

220

110

8

48.59

38.15

981.1

2916.5

178.4

265.1

12

69.73

54.74

1298.6

3934.5

236.1

357.7

14

79.51

62.42

1420.5

4343.1

258.3

394.8

200

10

77.43

60.78

4699.0

5445.9

469.9

495.1

12

91.33

71.70

5408.3

6273.3

540.8

570.3

14

104.7

82.20

6047.5

70207

604.8

638.2

240

180

12

91.33

71.70

4545.4

7121.4

505.0

593.4

250

150

10

73.43

57.64

2682.9

5960.2

357.7

476.8

12

86.53

67.93

3068.1

6852.7

409.1

548.2

14

99.11

77.80

3408.5

7652.9

454.5

612.2

200

10

83.43

65.49

5241.0

7401.0

524.1

592.1

12

98.53

77.35

6045.3

8553.5

604.5

684.3

14

113.1

88.79

6775.4

9604.6

677.5

768.4

300

150

10

8343

65.49

3173.7

9403.9

423.2

626.9

14

113.1

88.79

4058.1

12195.7

541.1

813.0

16

127.2

99.83

4427.9

13399.1

590.4

893.3

200

10

93.43

73.34

6144.3

11507.2

614.4

767.1

14

127.1

99.78

7988.3

15060.8

798.9

1004.1

16

143.2

112.39

8791.7

16628.7

879.2

1108.6

400

200

10

113.4

89.04

7951.0

23348.1

795.1

1167.4

14

155.1

121.76

10414.8

30915.0

1041.5

1545.8

16

175.2

137.51

11507.0

34339.4

1150.7

1717.0

^a当S≤6mm时，R=1.5S，矩型钢管理论重量推荐计算公式见式（A.3）；当S＞6mm时，R=2S，矩形钢管理论重量推荐计算公式见式（A.4）。

G=0.015 7S(A+B-2.858 4S)....................（A.3）

G=0.015 7S(A+B-3.287 6S)....................（A.4）

G       ——矩形钢管的理论重量（钢的密度按7.85kg/dm³），单位为公斤每米（kg/m）；

A、B——矩形钢管的长、宽，单位为毫米（mm）；

S       ——矩形钢管的公称壁厚，单位为毫米（mm）。