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The Following Table Provides Information About the Dimensions of ACR Copper Tubing, As Well as Five Practical Calculations For Your Engineering Convenience

 

How to Read this Table

  • A = Annealed
  • D = Hard Drawn
  • OD = Outside Dimensions
  • ID = Inside Dimensions
  • Wall = Wall Thickness
  • AB = Area of Bore in Sq Inches
  • ES = External Surface in Sq Feet / Linear Ft
  • IS = Internal Surface in Sq Feet / Linear Ft
  • Lb / Ft = Weight of Tube in Pounds / Linear Ft
  • CT = Contents of Tube in Cubic Ft / Linear Ft
  • Note: All Dimension are in Inches

Standard Size

Nominal, in Inches

Calculated Values (based on nominal dim.)

OD

ID

Wall

AB

ES

IS

Lb / Ft

CT

1/8

A

.125

.065

.030

0.00332

0.0327

0.017

0.0347

0.00002

3/16

A

.187

.128

.030

0.0129

0.0492

0.0335

0.0575

0.00009

1/4

A

.250

.190

.030

0.0284

0.0655

0.0497

0.0804

0.0002

5/16

A

.312

.248

.032

0.0483

0.0817

0.0649

0.109

0.00034

3/8

A

.375

.311

.032

0.076

0.0982

0.0814

0.134

0.00053

A

.375

.315

.030

0.078

0.0982

0.0821

0.126

0.00054

1/2

A

.500

.436

.032

0.149

0.131

0.114

0.182

0.00103

A

.500

.430

.035

0.145

0.131

0.113

0.198

0.00101

5/8

A

.625

.555

.035

0.242

0.164

0.145

0.251

0.00168

D

.625

.545

.040

0.233

0.164

0.143

0.285

0.00162

3/4

A

.750

.680

.035

0.363

0.196

0.178

0.305

0.00252

A

.750

.666

.042

0.348

0.196

0.174

0.362

0.00242

D

.750

.666

.042

0.348

0.196

0.174

0.362

0.00242

7/8

A

.875

.785

.045

0.484

0.229

0.206

0.455

0.00336

D

.875

.785

.045

0.484

0.229

0.206

0.455

0.00336

1 1/8

A

1.125

1.025

.050

0.825

0.294

0.268

0.655

0.00573

D

1.125

1.025

.050

0.825

0.294

0.268

0.655

0.00573

1 3/8

A

1.375

1.265

.055

1.26

0.36

0.331

0.884

0.00875

D

1.375

1.265

.055

1.26

0.36

0.331

0.884

0.00875

1 5/8

A

1.625

1.505

.060

1.78

0.425

0.394

1.14

0.0124

D

1.625

1.505

.060

1.78

0.425

0.394

1.14

0.0124

2 1/8

D

2.125

1.985

.070

3.09

0.556

0.52

1.75

0.0215

2 5/8

D

2.625

2.465

.080

4.77

0.687

0.645

2.48

0.0331

3 1/8

D

3.125

2.945

.090

6.81

0.818

0.771

3.33

0.0473

3 5/8

D

3.625

3.425

.100

9.21

0.949

0.897

4.29

0.064

4 1/8

D

4.125

3.905

.110

12

1.08

1.02

5.38

0.0833

 

 

 

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Copper Tube Coils Group

ACR Copper Tubing: What It Is, And When, Where, and How It is Used

 

ACRCT is used in the Air Conditioning and Refrigeration Field Service Industry and is designated by the tube's actual OD.
Only hard drawn ACRCT is marked with color; annealed is not. It is used to hold various refrigerant mediums that make Air Conditioning possible in conjunction with refrigerant compressors and the rapid heat transfer rate made possible by the excellent heat conductivity of copper. Because internal pressures play a key role in ACR applications, working pressures recommended by the Copper Development Association in conjunction with the ASTM (American Society for Testing and Materials), which provides the report Standard Specification for Seamless Copper Tube, are repeated below for your convenience.

 

ACR Working Pressures

OD

Annealed ACR Copper Tube Coils Working Pressure s

6K

PSI

100F

5.1K PSI

150F

4.9K PSI

200F

4.8K

PSI

250F

4.7K PSI

300F

4K

PSI

350F

3K

PSI

400F

1/8

3074

2613

2510

2459

2408

2049

1537

3/16

1935

1645

1581

1548

1516

1290

968

1/4

1406

1195

1148

1125

1102

938

703

5/16

1197

1017

977

957

937

798

598

3/8

984

836

803

787

770

656

492

1/2

727

618

594

581

569

485

363

5/8

618

525

504

494

484

412

309

3/4

511

435

417

409

400

341

256

3/4

631

537

516

505

495

421

316

7/8

582

495

475

466

456

388

291

1 1/8

494

420

404

395

387

330

247

1 3/8

439

373

358

351

344

293

219

1 5/8

408

347

334

327

320

272

204

 

OD

Annealed ACR Straight Copper Tube Working Pressure s

6K

PSI

100F

5.1K PSI

150F

4.9K PSI

200F

4.8K

PSI

250F

4.7K PSI

300F

4K

PSI

350F

3K

PSI

400F

3/8

914

777

747

731

716

609

457

1/2

781

664

638

625

612

521

391

5/8

723

615

591

579

567

482

362

3/4

633

538

517

506

496

422

316

7/8

583

496

477

467

457

389

292

1 1/8

495

421

404

396

388

330

248

1 3/8

440

374

359

352

344

293

220

1 5/8

409

348

334

327

320

273

205

2 1/8

364

309

297

291

285

243

182

2 5/8

336

286

275

269

263

224

168

3 1/8

317

270

259

254

249

212

159

3 5/8

304

258

248

243

238

203

152

4 1/8

293

249

240

235

230

196

147

*All tables on this page provided from the copper tube handbook, available from the Copper Development Association.

copper development association