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Copper tubes play a critical role in healthcare facilities by transporting medical gases safely and efficiently. To prevent contamination and ensure the integrity of these gases, copper tubing is manufactured with an exceptionally clean and smooth inner surface—an essential requirement that copper meets with proven reliability.
Modern hospitals rely on centralized Medical Gas Pipeline Systems (MGPS), which are now mandatory in critical care areas such as Intensive Care Units (ICU), Operating Theatres (OT), Cardiac Care Units (CCU), and Neonatal Nurseries. Compared to traditional gas cylinders, copper pipeline systems offer superior reliability and uninterrupted supply, which can be crucial in life-saving situations.
Copper tubes are widely preferred due to their ability to withstand high pressures, excellent corrosion resistance, long-term durability, and ease of installation. They have a well-established performance record and comply with international standards for medical gas applications.
Safety regulations governing oxygen and other pressurized medical gases specify the use of Type K or Type L copper tubes, in accordance with ASTM B 819. These tubes must meet stringent cleanliness requirements because pressurized oxygen can cause spontaneous ignition in the presence of organic residues, such as residual lubricants from the manufacturing process. To ensure patient safety, copper tubes for medical gas systems must be thoroughly cleaned, sealed, and protected during transport and installation to avoid contamination.
Medical-grade copper tubes are produced in compliance with EN 13348 and BS EN 1057 standards. Their manufacturing involves rigorous inspection and strict quality control protocols.
Below is an overview of the key features and specifications of medical-grade copper tubes.
Super Steel Manufacturing Co.,Ltd is professional copper pipes manufacturer, for more details, please contact:sales@super-steels.com
Specifications of Medical Grade Copper Pipes
|
Actual tube size |
Safe Working Pressure (kPa) |
||||||||
|
OD |
OD |
Wall |
Nominal |
Service Temperature(0C) |
|||||
|
|
|
Thickness |
tube |
||||||
|
(inches) |
(mm) |
(mm) |
mass |
50 |
55 |
60 |
65 |
70 |
75 |
|
|
|
|
(kg/6m) |
|
|||||
|
3/16" |
4.76 |
0.71 |
0.48 |
12715 |
12280 |
11845 |
11410 |
10980 |
10545 |
|
1/4" |
6.35 |
0.71 |
0.68 |
9175 |
8860 |
8550 |
8235 |
7920 |
7610 |
|
6.35 |
0.81 |
0.76 |
10635 |
10270 |
9910 |
9545 |
9180 |
8820 |
|
|
6.35 |
0.91 |
0.83 |
12140 |
11730 |
11315 |
10900 |
10485 |
10070 |
|
|
5/16" |
7.94 |
0.81 |
0.97 |
8290 |
8005 |
7725 |
7440 |
7160 |
6875 |
|
7.94 |
0.91 |
1.08 |
9430 |
9110 |
8790 |
8465 |
8145 |
7820 |
|
|
3/8" |
9.52 |
0.71 |
1.05 |
5900 |
5700 |
5495 |
5295 |
5095 |
4895 |
|
9.52 |
0.81 |
1.19 |
6800 |
6570 |
6335 |
6105 |
5870 |
5640 |
|
|
9.52 |
0.91 |
1.32 |
7720 |
7455 |
7190 |
6930 |
6665 |
6400 |
|
|
½" |
12.7 |
0.71 |
1.44 |
4345 |
4195 |
4050 |
3900 |
3750 |
3605 |
|
12.7 |
0.81 |
1.62 |
4995 |
4825 |
4655 |
4480 |
4310 |
4140 |
|
|
12.7 |
0.91 |
1.81 |
5655 |
5460 |
5270 |
5075 |
4880 |
4685 |
|
|
5/8" |
15.88 |
0.81 |
2.06 |
3945 |
3810 |
3675 |
3540 |
3405 |
3270 |
|
15.88 |
0.91 |
2.3 |
4460 |
4310 |
4155 |
4000 |
3850 |
3700 |
|
|
15.88 |
1.02 |
2.56 |
5030 |
4860 |
4690 |
4515 |
4345 |
4170 |
|
|
3/4" |
19.05 |
0.91 |
2.78 |
3600 |
3475 |
3355 |
3230 |
3110 |
2985 |
|
19.05 |
1.02 |
3.1 |
4150 |
4010 |
3230 |
3725 |
3585 |
3445 |
|
|
19.05 |
1.14 |
3.44 |
4670 |
4510 |
4350 |
4190 |
4030 |
3870 |
|
|
7/8" |
22.22 |
0.91 |
3.27 |
3140 |
3030 |
2925 |
2815 |
2710 |
2600 |
|
22.22 |
1.22 |
4.32 |
4265 |
4120 |
3970 |
3830 |
3680 |
3535 |
|
|
22.22 |
1.4 |
4.91 |
4930 |
4760 |
4595 |
4425 |
4255 |
4090 |
|
|
22.22 |
1.63 |
5.66 |
5795 |
5600 |
5400 |
5205 |
5005 |
4805 |
|
|
1" |
25.4 |
0.91 |
3.76 |
2730 |
2640 |
2545 |
2450 |
2360 |
2265 |
|
25.4 |
1.22 |
4.97 |
3705 |
3580 |
3450 |
3525 |
3200 |
3070 |
|
|
25.4 |
1.63 |
6.53 |
5025 |
4855 |
4685 |
4510 |
4340 |
4170 |
|
|
1/8" |
28.58 |
0.91 |
4.25 |
2420 |
2335 |
2255 |
2170 |
2090 |
2005 |
|
28.58 |
1.22 |
5.63 |
3275 |
3165 |
3050 |
2940 |
2830 |
2715 |
|
|
28.58 |
1.63 |
7.41 |
4435 |
4285 |
4135 |
3980 |
3830 |
3680 |
|
|
28.58 |
1.83 |
8.25 |
5015 |
4845 |
4670 |
4500 |
4330 |
4160 |
|
|
1.1/4" |
31.75 |
0.91 |
4.73 |
2170 |
2095 |
2025 |
1950 |
1875 |
1800 |
|
31.75 |
1.22 |
6.28 |
2935 |
2835 |
2735 |
2635 |
2535 |
2435 |
|
|
31.75 |
2.03 |
10.17 |
5005 |
4835 |
4665 |
4495 |
4325 |
4150 |
|
|
1 3/8" |
34.92 |
0.91 |
5.22 |
1970 |
1900 |
1835 |
1770 |
1700 |
1635 |
|
34.92 |
1.22 |
6.93 |
2660 |
2570 |
2480 |
2390 |
2300 |
2210 |
|
|
34.92 |
2.03 |
11.26 |
4525 |
4370 |
4220 |
4065 |
3910 |
3755 |
|
|
1½" |
38.1 |
1.22 |
7.59 |
2435 |
2350 |
2265 |
2185 |
2100 |
2020 |
|
38.1 |
2.29 |
13.83 |
4690 |
4530 |
4370 |
4210 |
4050 |
3890 |
|
|
1 5/8" |
41.28 |
0.91 |
6.19 |
1660 |
1605 |
1545 |
1490 |
1435 |
1375 |
|
41.28 |
1.22 |
8.24 |
2240 |
2165 |
2090 |
2010 |
1935 |
1860 |
|
|
41.28 |
2.41 |
15.79 |
4550 |
4390 |
4235 |
4080 |
3925 |
3770 |
|
Dimensions and Physical Characteristics of Copper Tube: Medical Gas, K and L
|
Nominal or Standard Size, inches |
Nominal dimensions, inches |
Calculated values (based on nominal dimensions) |
||||||
|
Outside diameter |
Inside diameter |
Wall thickness |
Cross sectional area of bore, sq. inches |
Internal surface, sq. ft. per linear ft. |
Weight of Tube only, pounds per linear ft. |
Contents of tube, cu. ft. per linear ft |
||
|
42461 |
K |
0.375 |
0.305 |
0.035 |
0.073 |
0.0789 |
0.145 |
0.00051 |
|
L |
0.375 |
0.315 |
0.03 |
0.078 |
0.0825 |
0.126 |
0.00054 |
|
|
42585 |
K |
0.5 |
0.402 |
0.049 |
0.127 |
0.105 |
0.269 |
0.00088 |
|
L |
0.5 |
0.43 |
0.035 |
0.145 |
0.113 |
0.198 |
0.00101 |
|
|
42401 |
K |
0.625 |
0.527 |
0.049 |
0.218 |
0.13 |
0.344 |
0.00151 |
|
L |
0.625 |
0.545 |
0.04 |
0.233 |
0.143 |
0.285 |
0.00162 |
|
|
42587 |
K |
0.75 |
0.652 |
0.049 |
0.334 |
0.171 |
0.418 |
0.00232 |
|
L |
0.75 |
0.666 |
0.042 |
0.348 |
0.174 |
0.362 |
0.00242 |
|
|
42463 |
K |
0.875 |
0.745 |
0.065 |
0.436 |
0.195 |
0.641 |
0.00303 |
|
L |
0.875 |
0.785 |
0.045 |
0.484 |
0.206 |
0.455 |
0.00336 |
|
|
1 |
K |
1.125 |
0.995 |
0.065 |
0.778 |
0.261 |
0.839 |
0.0054 |
|
L |
1.125 |
1.025 |
0.05 |
0.825 |
0.268 |
0.655 |
0.00573 |
|
|
37987 |
K |
1.375 |
1.245 |
0.065 |
1.222 |
0.326 |
1.04 |
0.00845 |
|
L |
1.375 |
1.265 |
0.055 |
1.26 |
0.331 |
0.884 |
0.00873 |
|
|
37257 |
K |
1.625 |
1.481 |
0.072 |
1.72 |
0.388 |
1.36 |
0.012 |
|
L |
1.625 |
1.505 |
0.06 |
1.78 |
0.394 |
1.14 |
0.0124 |
|
|
2 |
K |
2.125 |
1.959 |
0.083 |
3.01 |
0.522 |
2.06 |
0.0209 |
|
L |
2.125 |
1.985 |
0.07 |
3.09 |
0.52 |
1.75 |
0.0215 |
|
|
37258 |
K |
2.625 |
2.435 |
0.095 |
4.66 |
0.638 |
2.93 |
0.0323 |
|
L |
2.625 |
2.465 |
0.08 |
4.77 |
0.645 |
2.48 |
0.0331 |
|
|
3 |
K |
3.125 |
2.907 |
0.109 |
6.64 |
0.761 |
4 |
0.0461 |
|
L |
3.125 |
2.945 |
0.09 |
6.81 |
0.761 |
3.33 |
0.0473 |
|
|
37259 |
K |
3.625 |
3.385 |
0.12 |
9 |
0.886 |
5.12 |
0.0625 |
|
L |
3.625 |
3.425 |
0.1 |
9.21 |
0.897 |
4.29 |
0.064 |
|
|
4 |
K |
4.125 |
3.857 |
0.134 |
11.7 |
1.01 |
6.51 |
0.0811 |
|
L |
4.125 |
3.905 |
0.11 |
12 |
1.02 |
5.38 |
0.0832 |
|
|
5 |
K |
5.125 |
4.805 |
0.16 |
18.1 |
1.26 |
9.67 |
0.126 |
|
L |
5.125 |
4.875 |
0.125 |
18.7 |
1.28 |
7.61 |
0.13 |
|
|
6 |
K |
6.125 |
5.741 |
0.192 |
25.9 |
1.5 |
13.9 |
0.18 |
|
L |
6.125 |
5.854 |
0.14 |
26.8 |
1.53 |
10.2 |
0.186 |
|
|
8 |
K |
8.125 |
7.583 |
0.271 |
45.2 |
1.99 |
25.9 |
0.314 |
|
L |
8.125 |
7.725 |
0.2 |
46.9 |
2.02 |
19.3 |
0.325 |
|
Chemical Composition of Medical Grade Copper Pipe
|
Particular |
EN13348 Standard |
KWALITY |
|||
|
CHEMICAL COMPOSITION |
Copper (Cu) + Silver (Ag) |
99.90% |
Spectro Analysis done per heat as per standard tolerances. |
||
|
Phosphorous |
0.015% to 0.04% |
||||
|
CARBON CONTENT TEST |
Determining lubricant residue as total Carbon Content by measuring Carbon Dioxide Generated. |
Tested with Combustion Method as per EN723:2009 |
|||
|
TENSILE / ELONGATION TEST |
|||||
|
Temper |
Tensile Strength MPa min. |
Elongation A % min |
Hardness (Indicative) HV 5 |
|
|
|
As per EN1773 |
Common Term |
||||
|
R220a |
annealed |
220 |
40 |
(40 to 75) |
Specifications maintained with help of In house testing facility. |
|
R250 |
half hard |
250 |
30 |
(75 to 100) |
|
|
R290 |
hard |
290 |
3 |
(min. 100) |
|
|
DRIFTING TEST |
Depending on Size and Temper Mandatory / Agreed Terms |
Conical Mandrel @ 45º with tube end expanding 30º |
|||
|
FREE FROM DEFECT TEST |
EDDY Current Test for detection of local defects |
EDDY Current Test conducted in accordance with EN 1971 |
|||
|
CLEANLINESS |
Proper Degreasing and End Capped |
Our pipes are Degreased as per standard and End Caps are affixed. |
|||
Wall Thickness Tolerance of Medical Grade Copper Pipe
|
Nominal Outside |
Tolerance Wall Thickness |
|
|
diameter (mm) |
e< 1 mm(%) |
e> 1 mm(%) |
|
< 18 |
10 |
13 |
|
> 18 |
10 |
15 |
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