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3″ to 4″ ROUND MECHANICAL TUBING – CARBON STEEL

Page List: Round Mechanical Tubing

ROUND MECHANICAL TUBING – CARBON STEEL

HF SMLS & ERW¹, CD SMLS, DOM & Rystar²

Seamless meets ASTM A519
DOM & ERW meet ASTM A513
Rystar meets ASTM A512

Stock Lengths: 17 to 24 Ft. random
ERW: Generally 20′ 2″

ROUND MECHANICAL TUBING – CARBON STEEL

HF SMLS & ERW¹, CD SMLS, DOM & Rystar²

OD
in
Inches

Wall

Decimal
Equivalent

ID
in
Inches

Lbs.
per Ft.

CD
SMLS²

HF
SMLS¹

DOM²

ERW¹

Ry-Star
512²

3″

O.D. x

18

.049

x

2.902

1.544

X

16

.065

x

2.870

2.037

X

X

14

.083

x

2.834

2.586

X

X

13

.095

x

2.810

2.947

X

X

12

.109

x

2.782

3.365

X

X

11

.120

x

2.760

3.691

X

X

1/8

.125

x

2.750

3.838

X

10

.134

x

2.732

4.102

X

5/32

.156

x

2.688

4.738

X

7

.180

x

2.640

5.421

X

3/16

.188

x

2.625

5.646

X

X

7/32

.219

x

2.563

6.505

X

X

1/4

.250

x

2.500

7.343

X

X

X

9/32

.281

x

2.438

8.168

X

OD
in
Inches

Wall

Decimal
Equivalent

ID
in
Inches

Lbs.
per Ft.

CD
SMLS²

HF
SMLS¹

DOM²

ERW¹

Ry-Star
512²

5/16

.312

x

2.375

8.982

X

11/32

.343

x

2.312

9.758

X

3/8

.375

x

2.250

10.510

X

X

7/16

.437

x

2.125

11.980

X

1/2

.500

x

2.000

13.350

X

9/16

.562

x

1.875

14.650

X

5/8

.625

x

1.750

15.850

X

11/16

.687

x

1.625

16.990

X

3/4

.750

x

1.500

18.020

X

7/8

.875

x

1.250

19.860

X¹

1

1.000

x

1.000

21.360

X¹

3 1/16″

O.D. x

5/16

.312

x

2.438

9.193

X

3 1/8″

O.D. x

16

.065

x

2.995

2.124

X

OD
in
Inches

Wall

Decimal
Equivalent

ID
in
Inches

Lbs.
per Ft.

CD
SMLS²

HF
SMLS¹

DOM²

ERW¹

Ry-Star
512²

11

.120

x

2.885

3.851

X

1/8

.125

x

2.875

4.005

X

3/16

.188

x

2.750

5.897

X

7/32

.219

x

2.687

6.797

X

1/4

.250

x

2.625

7.676

X

5/16

.312

x

2.500

9.400

X

3/8

.375

x

2.375

11.010

X

7/16

.437

x

2.250

12.570

X

1/2

.500

x

2.125

14.020

X

9/16

.562

x

2.000

15.400

X

3/4

.750

x

1.625

19.020

X

3 1/4″

O.D. x

16

.065

x

3.120

2.211

X

13

.095

x

3.060

3.201

X

11

.120

x

3.010

4.011

X

X

OD
in
Inches

Wall

Decimal
Equivalent

ID
in
Inches

Lbs.
per Ft.

CD
SMLS²

HF
SMLS¹

DOM²

ERW¹

Ry-Star
512²

1/8

.125

x

3.000

4.172

X

10

.134

x

2.982

4.459

X

5/32

.156

x

2.935

5.155

X

3/16

.188

x

2.875

6.148

X

7/32

.219

x

2.812

7.089

X

1/4

.250

x

2.750

8.010

X

5/16

.312

x

2.625

9.818

X

11/32

.344

x

2.562

10.680

X

3/8

.375

x

2.500

11.510

X

7/16

.437

x

2.375

13.150

X

1/2

.500

x

2.250

14.690

X

9/16

.562

x

2.125

16.160

X

5/8

.625

x

2.000

17.520

X

3/4

.750

x

1.750

20.030

X

7/8

.875

x

1.500

22.190

X¹

OD
in
Inches

Wall

Decimal
Equivalent

ID
in
Inches

Lbs.
per Ft.

CD
SMLS²

HF
SMLS¹

DOM²

ERW¹

Ry-Star
512²

1

1.000

x

1.250

24.030

X¹

3 3/8″

O.D x

11

.120

x

3.135

4.172

X

3/16

.188

x

3.000

6.399

X

1/4

.250

x

2.875

8.344

X

5/16

.312

x

2.750

10.240

X

3/8

.375

x

2.625

12.020

X

7/16

.437

x

2.500

13.740

X

1/2

.500

x

2.375

15.350

X

5/8

.625

x

2.125

18.360

X

3/4

.750

x

1.875

21.030

X

3 1/2″

O.D. x

16

.065

x

3.370

2.385

X

X

14

.083

x

3.334

3.029

X

X

13

.095

x

3.310

3.455

X

OD
in
Inches

Wall

Decimal
Equivalent

ID
in
Inches

Lbs.
per Ft.

CD
SMLS²

HF
SMLS¹

DOM²

ERW¹

Ry-Star
512²

11

.120

x

3.260

4.332

X

1/8

.125

x

3.250

4.506

X

10

.134

x

3.232

4.817

X

5.32

.156

x

3.188

5.571

X

7

.180

x

3.140

6.382

X

3/16

.188

x

3.125

6.650

X

7/32

.219

x

3.063

7.674

X

1/4

.250

x

3.000

8.678

X

X

X

9/32

.281

x

2.938

9.660

X

5/16

.312

x

3.875

10.650

X

11/32

.343

x

2.812

11.590

X

3/8

.375

x

2.750

12.520

X

X

7/16

.437

x

2.625

14.320

X

1/2

.500

x

2.500

16.020

X

9/16

.562

x

2.375

17.660

X

OD
in
Inches

Wall

Decimal
Equivalent

ID
in
Inches

Lbs.
per Ft.

CD
SMLS²

HF
SMLS¹

DOM²

ERW¹

Ry-Star
512²

5/8

.625

x

2.250

19.190

X

3/4

.750

x

2.000

22.030

X

7/8

.875

x

1.750

24.530

X¹

1

1.000

x

1.500

26.700

X¹

3 5/8″

O. D. x

16

.065

x

3.495

2.471

X

11

.120

x

3.385

4.492

X

1/8

.125

x

3.375

4.673

X

3/16

.188

x

3.250

6.884

X

1/4

.250

x

3.125

9.011

X

5/16

.312

x

3.000

11.070

X

3/8

.375

x

2.875

13.020

X

7/16

.437

x

2.750

14.910

X

1/2

.500

x

2.625

16.690

X

9/16

.562

x

2.500

18.410

X

OD
in
Inches

Wall

Decimal
Equivalent

ID
in
Inches

Lbs.
per Ft.

CD
SMLS²

HF
SMLS¹

DOM²

ERW¹

Ry-Star
512²

5/8

.625

x

2.375

20.030

X

3/4

.750

x

2.125

23.030

X

3 3/4″

O.D. x

16

.065

x

3.620

2.558

X

13

.095

x

3.560

3.708

X

X

11

.120

x

3.510

4.652

X

1/8

.125

x

3.500

4.839

X

3/16

.188

x

3.375

7.152

X

7/32

.219

x

3.312

8.259

X

1/4

.250

x

3.250

9.345

X

5/16

.312

x

3.125

11.490

X

11/32

.343

x

3.062

12.510

X

3/8

.375

x

3.000

13.520

X

7/16

.437

x

2.875

15.490

X

1/2

.500

x

2.750

17.360

X

OD
in
Inches

Wall

Decimal
Equivalent

ID
in
Inches

Lbs.
per Ft.

CD
SMLS²

HF
SMLS¹

DOM²

ERW¹

Ry-Star
512²

9/16

.562

x

2.625

19.160

X

5/8

.625

x

2.500

20.860

X

11/16

.687

x

2.375

22.490

X

3/4

.750

x

2.250

24.030

X

7/8

.875

x

2.000

26.870

X

1

1.000

x

1.750

29.370

X¹

3 7/8″

O.D. x

1/8

.125

x

3.625

5.006

X

3/16

.188

x

3.500

7.403

X

1/4

.250

x

3.375

9.679

X

5/16

.312

x

3.250

11.910

X

3/8

.375

x

3.125

14.020

X

7/16

.437

x

3.000

16.080

X

1/2

.500

x

2.875

18.020

X

5/8

.625

x

2.625

21.690

X

OD
in
Inches

Wall

Decimal
Equivalent

ID
in
Inches

Lbs.
per Ft.

CD
SMLS²

HF
SMLS¹

DOM²

ERW¹

Ry-Star
512²

3/4

.750

x

2.375

25.030

X

¹Produced to O.D. and wall dimensions.
²Generally produced to OD & ID.

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