ASTM B88 Tube Sizes - Crane Copper Tube, manufacturer and international supplier of plumbing, refrigeration, air-conditioning and medical gas copper tube

TYPE K
Nom. Size (")	Dimensions (")			Calculated Values (Based on ASME B31)
				*Rated internal working pressures (psi)				Nom. Weight (lbs per ft)
	Actual		Wall Thickness	Surface Temperature
	Outside Diameter			Up to 150°F		300°F
				Annealed	Hard Drawn	Annealed	Hard Drawn
1/4 3/8 1/2 5/8 3/4 1 1¼ 1½ 2 2½ 3 3½ 4 5 6 8	.375 .500 .625 .750 .875 1.125 1.375 1.625 2.125 2.625 3.125 3.625 4.125 5.125 6.125 8.125	3/8 1/2 5/8 3/4 7/8 1 1/8 1 3/8 1 5/8 2 1/8 2 5/8 3 1/8 3 5/8 4 1/8 5 1/8 6 1/8 8 1/8	.035 .049 .049 .049 .065 .065 .065 .072 .083 .095 .109 .120 .134 .160 .192 .271	913 979 769 633 735 563 456 424 372 341 330 313 308 295 296 315	2029 2135 1683 1389 1609 1236 1003 933 820 751 579 549 540 517 520 554	842 902 709 583 662 520 420 391 343 314 304 288 283 272 272 290	1974 2077 1638 1351 1566 1203 976 908 798 731 560 531 522 500 502 535	0.145 0.269 0.344 0.419 0.642 0.839 1.037 1.362 2.065 2.928 4.005 5.124 6.516 9.678 13.878 25.930

TYPE L
Nom. Size (")	Dimensions (")			Calculated Values (Based on ASME B31)
				*Rated internal working pressures (psi)				Nom. Weight (lbs per ft)
	Actual		Wall Thickness	Surface Temperature
	Outside Diameter			Up to 150°F		300°F
				Annealed	Hard Drawn	Annealed	Hard Drawn
1/4 3/8 1/2 5/8 3/4 1 1¼ 1½ 2 2½ 3 3½ 4 5 6 8	.375 .500 .625 .750 .875 1.125 1.375 1.625 2.125 2.625 3.125 3.625 4.125 5.125 6.125 8.125	3/8 1/2 5/8 3/4 7/8 1 1/8 1 3/8 1 5/8 2 1/8 2 5/8 3 1/8 3 5/8 4 1/8 5 1/8 6 1/8 8 1/8	.030 .035 .040 .042 .045 .050 .055 .060 .070 .080 .090 .100 .110 .125 .140 .200	775 662 614 536 495 420 373 347 309 286 269 258 249 229 213 230	1722 1471 1362 1192 1099 933 828 771 686 633 476 456 440 404 376 406	714 610 565 494 456 387 344 319 285 263 248 238 229 211 197 211	1676 1431 1325 1160 1069 908 806 750 667 616 449 441 425 391 364 393	0.126 0.198 0.286 0.362 0.448 0.655 0.885 1.144 1.753 2.480 3.328 4.295 5.381 7.615 10.208 19.310

TYPE M
Nom. Size (")	Dimensions (")			Calculated Values (Based on ASME B31)
				*Rated internal working pressures (psi)				Nom. Weight (lbs per ft)
	Actual		Wall Thickness	Surface Temperature
	Outside Diameter			Up to 150°F		300°F
				Annealed	Hard Drawn	Annealed	Hard Drawn
3/8 1/2 3/4 1 1¼ 1½ 2 2½ 3 3½ 4 5 6 8	.500 .625 .875 1.125 1.375 1.625 2.125 2.625 3.125 3.625 4.125 5.125 6.125 8.125	1/2 5/8 7/8 1 1/8 1 3/8 1 5/8 2 1/8 2 5/8 3 1/8 3 5/8 4 1/8 5 1/8 6 1/8 8 1/8	.025 .028 .032 .035 .042 .049 .058 .065 .072 .083 .095 .109 .122 .170	485 420 346 286 287 281 254 233 215 214 313 198 185 195	1077 932 769 636 638 625 563 517 380 378 377 349 328 344	446 387 319 264 265 259 234 215 198 197 197 182 171 179	1048 907 748 619 621 608 548 503 367 366 365 337 317 333	0.144 0.204 0.328 0.465 0.682 0.940 1.460 2.027 2.678 3.582 4.664 6.661 8.922 16.475

* Annealed S = 5,100psi, Hard Drawn S = 11,300psi, for sizes ¼" to 2½" Nominal. S = 8,700psi for sizes over 2½" Nominal, as these sizes are not normally available in the annealed form and are not therefore covered by ASME.
The figures provided are for guidance only, based on the indicated temperatures.

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