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Home Parts Pipe Fittings CategorySeamless Tubing

Seamless Tubing

Pipe Fittings

Seamless Tubing

Seamless Tubing for Safe and Reliable Fluid Media Transfer

Seamless tubing is a high-quality pipe material that, when used in conjunction with ferrule fittings, not only provides an efficient and economical connection method, but also ensures the sealing and overall stability of the pipeline system, greatly reducing the risk of leakage. In addition, their installation and maintenance processes are simple and convenient, requiring no welding, saving time and reducing costs.

Seamless tubing is manufactured through seamless technology and widely used in modern pipeline systems. The seamless nature of this pipe material ensures its overall strength and uniformity, allowing it to safely and reliably transport fluids under various pressure and temperature conditions, including water, oil, natural gas, chemicals, and other liquids and gases.

Specification
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Specification

Download Data Sheet

Stainless Steel Tubing
Carbon Steel Tubing
Copper Tubing
Aluminium Steel Tubing
Other Alloy Tubing

Fractional Stainless Steel Tubing

Table 1: Working Pressure for Fractional Stainless Steel Tubing
Tube O.D. (in.)	Tube Wall Thickness (in.)
	0.012	0.016	0.020	0.028	0.035	0.049		0.065	0.083	0.095	0.109	0.120	0.134	0.156	0.188
	Working Pressure (psig)
1/16"	6800	9000	11000	–	–	–	–		–	–	–	–	–	–	–
1/8"	–	–	–	8500	10000	–	–		–	–	–	–	–	–	–
3/16"	–	–	–	5400	6800	10000	–		–	–	–	–	–	–	–
1/4"	–	–	–	4000	5000	7500	10000		–	–	–	–	–	–	–
5/16"	–	–	–	–	4000	5800	8000		–	–	–	–	–	–	–
3/8"	–	–	–	–	3300	4800	6500		–	–	–	–	–	–	–
1/2"	–	–	–	–	2600	3700	5000		6500	–	–	–	–	–	–
5/8"	–	–	–	–	–	2900	4000		5000	–	–	–	–	–	–
3/4"	–	–	–	–	–	2400	3300		4200	4800	–	–	–	–	–
7/8"	–	–	–	–	–	2000	2800		3600	4000	4600	–	–	–	–
1"	–	–	–	–	–	–	2400		3000	3500	4000	4500	–	–	–
1-1/4"	–	–	–	–	–	–	–		2400	2700	3200	3500	3800	–	–
1-1/2"	–	–	–	–	–	–	–		–	2300	2600	2800	3200	3800	–
2"	–	–	–	–	–	–	–		–	–	2000	2200	2400	2700	3300

Metric Stainless Steel Tubing

Table 2: Working Pressure for Metric Stainless Steel Tubing
Tube O.D. (mm)	Tube Wall Thickness (mm)
	0.8	1.0	1.2	1.5	1.8	2.0	2.2	2.5	2.8	3.0	3.5	4.0	4.5	5.0
	Working Pressure (bar)
3	670	–	–	–	–	–	–	–	–	–	–	–	–	–
6	310	420	540	710	–	–	–	–	–	–	–	–	–	–
8	–	310	390	520	–	–	–	–	–	–	–	–	–	–
10	–	240	300	400	510	580	–	–	–	–	–	–	–	–
12	–	200	250	330	410	470	–	–	–	–	–	–	–	–
14	–	160	200	270	340	380	430	–	–	–	–	–	–	–
15	–	150	190	250	310	360	400	–	–	–	–	–	–	–
16	–	–	170	230	290	330	370	400	–	–	–	–	–	–
18	–	–	150	200	260	290	320	370	–	–	–	–	–	–
20	–	–	140	180	230	260	290	330	380	–	–	–	–	–
22	–	–	140	160	200	230	260	300	340	–	–	–	–	–
25	–	–	–	–	180	200	230	260	290	320	–	–	–	–
28	–	–	–	–	–	180	200	230	260	280	330	–	–	–
30	–	–	–	–	–	170	180	210	240	260	310	–	–	–
32	–	–	–	–	–	160	170	200	220	240	290	330	–	–
38	–	–	–	–	–	–	140	160	190	200	240	270	310	–
42	–	–	–	–	–	–	–	150	170	190	220	250	290	–
50	–	–	–	–	–	–	–	–	–	150	180	210	240	270

Fractional Carbon Steel Tubing

Table 3: Working Pressure for Fractional Carbon Steel Tubing
Tube O.D. (in.)	Tube Wall Thickness (in.)
	0.028	0.035	0.049	0.065	0.083	0.095	0.109	0.120	0.134	0.148	0.165	0.180	0.220
	Working Pressure (psig)
1/8"	8000	10200	–	–	–	–	–	–	–	–	–	–	–
3/16"	5100	6600	9600	–	–	–	–	–	–	–	–	–	–
1/4"	3700	4800	7000	9600	–	–	–	–	–	–	–	–	–
5/16"	–	3700	5500	7500	–	–	–	–	–	–	–	–	–
3/8"	–	3100	4500	6200	–	–	–	–	–	–	–	–	–
1/2"	–	2300	3200	4500	5900	–	–	–	–	–	–	–	–
5/8"	–	1800	2600	3500	4600	5300	–	–	–	–	–	–	–
3/4"	–	–	2100	2900	3700	4300	5100	–	–	–	–	–	–
7/8"	–	–	1800	2400	3200	3700	4300	–	–	–	–	–	–
1"	–	–	1500	2100	2700	3200	3700	4100	–	–	–	–	–
1-1/4"	–	–	–	1600	2100	2500	2900	3200	3600	4000	4600	5000	–
1-1/2"	–	–	–	–	1800	2000	2400	2600	2900	3300	3700	4100	5100
2"	–	–	–	–	–	1500	1700	1900	2100	2400	2700	3000	3700

Metric Carbon Steel Tubing

Table 4: Working Pressure for Metric Carbon Steel Tubing
Tube O.D. (mm)	Tube Wall Thickness (mm)
	0.8	1.0	1.2	1.5	1.8	2.0	2.2	2.5	2.8	3.0	3.5	4.0	4.5
	Working Pressure (bar)
3	630	790	–	–	–	–	–	–	–	–	–	–	–
6	290	370	460	590	–	–	–	–	–	–	–	–	–
8	–	270	330	430	–	–	–	–	–	–	–	–	–
10	–	210	260	330	–	–	–	–	–	–	–	–	–
12	–	170	210	270	330	380	420	–	–	–	–	–	–
14	–	150	180	230	280	320	350	–	–	–	–	–	–
15	–	140	170	210	260	290	330	–	–	–	–	–	–
16	–	130	150	200	240	270	300	350	–	–	–	–	–
18	–	–	140	170	210	240	270	310	–	–	–	–	–
20	–	–	120	160	190	210	240	270	310	–	–	–	–
22	–	–	110	140	170	190	210	240	280	–	–	–	–
25	–	–	100	120	150	170	180	210	240	260	–	–	–
28	–	–	–	–	–	150	160	190	210	230	270	–	–
30	–	–	–	–	–	140	150	170	200	210	250	–	–
32	–	–	–	–	–	130	140	160	180	200	230	270	–
38	–	–	–	–	–	–	120	130	150	160	190	230	260

Fractional Copper Tubing

Table 5: Working Pressure for Fractional Copper Tubing
Tube O.D. (in.)	Tube Wall Thickness (in.)
	0.028	0.030	0.035	0.049	0.065	0.083	0.095	0.109	0.120	0.134
	Working Pressure (psig)
1/8"	2700	3000	3600	–	–	–	–	–	–	–
3/16"	1800	1900	2300	3400	–	–	–	–	–	–
1/4"	1300	1400	1600	2500	3500	–	–	–	–	–
5/16"	–	–	1300	1900	2700	–	–	–	–	–
3/8"	–	–	1000	1600	2200	–	–	–	–	–
1/2"	–	–	800	1100	1600	2100	–	–	–	–
5/8"	–	–	–	900	1200	1600	1900	–	–	–
3/4"	–	–	–	700	1000	1300	1500	1800	–	–
7/8"	–	–	–	600	800	1100	1300	1500	–	–
1"	–	–	–	500	700	900	1100	1300	1500	–
1-1/8"	–	–	–	–	600	800	1000	1100	1300	1400

Metric Copper Tubing

Table 6: Working Pressure for Metric Copper Tubing
Tube O.D. (mm)	Tube Wall Thickness (mm)
	0.8	1.0	1.2	1.5	1.8	2.0	2.2	2.5	2.8	3.0
	Working Pressure (bar)
6	110	140	170	220	–	–	–	–	–	–
8	–	100	120	160	–	–	–	–	–	–
10	–	80	100	130	–	–	–	–	–	–
12	–	60	80	100	130	140	–	–	–	–
14	–	50	60	90	110	120	–	–	–	–
15	–	–	60	80	100	110	120	–	–	–
16	–	–	–	70	90	100	110	120	–	–
18	–	–	–	60	80	90	100	110	–	–
20	–	–	–	60	70	80	90	100	110	–
22	–	–	–	50	60	70	80	90	100	–
25	–	–	–	40	50	60	70	80	90	100
28	–	–	–	–	40	50	60	70	80	90

Fractional Aluminium Tubing

Table 7: Working Pressure for Fractional Aluminium Tubing
Tube O.D. (in.)	Tube Wall Thickness (in.)
	0.035	0.049	0.065	0.083	0.095
	Working Pressure (psig)
1/8"	8600	–	–	–	–
3/16"	5600	8000	–	–	–
1/4"	4000	5900	–	–	–
5/16"	3100	4600	–	–	–
3/8"	2600	3700	–	–	–
1/2"	1900	2700	3700	–	–
5/8"	1500	2100	2900	–	–
3/4"	–	1700	2400	3100	–
1"	–	1300	1700	2300	2700

Metric Aluminium Tubing

Table 8: Working Pressure for Metric Aluminium Tubing
Tube O.D. (mm)	Tube Wall Thickness (mm)
	1.0	1.2	1.5	1.8	2.0	2.2	2.5
	Working Pressure (bar)
6	340	400	–	–	–	–	–
8	240	300	–	–	–	–	–
10	190	230	–	–	–	–	–
12	160	190	240	250	–	–	–
14	130	160	200	220	–	–	–
15	120	150	190	200	–	–	–
16	110	140	170	190	–	–	–
18	–	120	150	190	210	–	–
25	–	–	110	130	150	170	180

Fractional Alloy 400 Tubing

Table 9: Working Pressure for Fractional Alloy 400 Tubing
Tube O.D. (in.)	Tube Wall Thickness (in.)
	0.028	0.035	0.049	0.065	0.083	0.095	0.109	0.120
	Working Pressure (psig)
1/8"	7900	10100	–	–	–	–	–	–
1/4"	3700	4800	7000	9500	–	–	–	–
5/16"	–	3700	5400	7300	–	–	–	–
3/8"	–	3100	4400	6100	–	–	–	–
1/2"	–	2300	3200	4400	–	–	–	–
3/4"	–	–	2200	3000	4000	4600	–	–
1"	–	–	–	2200	2900	3400	3900	4300

Metric Alloy 400 Tubing

Table 10: Working Pressure for Metric Alloy 400 Tubing
Tube O.D. (mm)	Tube Wall Thickness (mm)
	0.8	1.0	1.2	1.5	1.8	2.0	2.2	2.5	2.8	3.0
	Working Pressure (bar)
6	310	390	490	620	–	–	–	–	–	–
8	–	290	350	450	–	–	–	–	–	–
10	–	220	280	350	–	–	–	–	–	–
12	–	180	230	290	–	–	–	–	–	–
14	–	160	190	240	270	–	–	–	–	–
18	–	–	150	200	240	270	300	–	–	–
20	–	–	–	180	210	240	270	290	–	–
25	–	–	–	–	170	190	210	240	270	290

Fractional Alloy C276 Tubing

Table 11: Working Pressure for Fractional Alloy C276 Tubing
Tube O.D. (in.)	Tube Wall Thickness (in.)
	0.028	0.035	0.049	0.065
	Working Pressure (psig)
1/4"	4000	5100	7500	10200
5/16"	–	4000	5800	7800
3/8"	–	3300	4800	6500
1/2"	–	2600	3700	5100

Metric Alloy C276 Tubing

Table 12: Working Pressure for Metric Alloy C276 Tubing
Tube O.D. (mm)	Tube Wall Thickness (mm)
	0.8	1.0	1.2	1.5
	Working Pressure (bar)
6	310	420	520	670
8	–	310	390	500
10	–	240	300	380
12	–	200	240	310

Fractional Alloy 20 Tubing

Table 13: Working Pressure for Fractional Alloy 20 Tubing
Tube O.D. (in.)	Tube Wall Thickness (in.)
	0.028	0.035	0.049	0.065
	Working Pressure (psig)
1/4"	4000	5100	7500	10200
3/8"	–	3300	4800	6500
1/2"	–	2600	3700	5100

Metric Alloy 20 Tubing

Table 14: Working Pressure for Metric Alloy 20 Tubing
Tube O.D. (mm)	Tube Wall Thickness (mm)
	0.8	1.0	1.2	1.5
	Working Pressure (bar)
6	310	420	520	670
8	–	310	390	500
10	–	240	300	380
12	–	200	240	310

Fractional Alloy 600 Tubing

Table 15: Working Pressure for Fractional Alloy 600 Tubing
Tube O.D. (in.)	Tube Wall Thickness (in.)
	0.028	0.035	0.049	0.065
	Working Pressure (psig)
1/4"	4000	5100	7500	10200
3/8"	–	3300	4800	6500
1/2"	–	2600	3700	5100

Metric Alloy 600 Tubing

Table 16: Working Pressure for Metric Alloy 600 Tubing
Tube O.D. (mm)	Tube Wall Thickness (mm)
	0.8	1.0	1.2	1.5
	Working Pressure (bar)
6	310	420	520	670
8	–	310	390	500
10	–	240	300	380
12	–	200	240	310

Fractional Grade 2 Titanium Tubing

Table 17: Working Pressure for Fractional Grade 2 Titanium Tubing
Tube O.D. (in.)	Tube Wall Thickness (in.)
	0.028	0.035	0.049	0.065
	Working Pressure (psig)
1/4"	3500	4500	6700	9100
3/8"	–	2900	4200	5800
1/2"	–	2100	3100	4200

Metric Grade 2 Titanium Tubing

Table 18: Working Pressure for Metric Grade 2 Titanium Tubing
Tube O.D. (mm)	Tube Wall Thickness (mm)
	0.8	1.0	1.2	1.5
	Working Pressure (bar)
6	290	380	470	600
8	–	270	360	460
10	–	210	260	340
12	–	180	220	280

Fractional SAF 2507 Tubing

Table 19: Working Pressure for Fractional SAF 2507 Tubing
Tube O.D. (in.)	Tube Wall Thickness (in.)
	0.035	0.049	0.065	0.083	0.095
	Working Pressure (psig)
1/4"	10000	15000	–	–	–
3/8"	6500	10100	12700	–	–
1/2"	5000	7200	10100	12900	–
5/8"	–	5800	7600	10100	–
3/4"	–	4700	6300	8500	10000

Fractional Alloy 825 Tubing

Table 20: Working Pressure for Fractional Alloy 825 Tubing
Tube O.D. (in.)	Tube Wall Thickness (in.)
	0.035	0.049	0.065
	Working Pressure (psig)
1/4"	6400	9300	11600
3/8"	4100	5900	8200
1/2"	3000	4300	5900

Metric Alloy 825 Tubing

Table 21: Working Pressure for Metric Alloy 825 Tubing
Tube O.D. (mm)	Tube Wall Thickness (mm)
	1.0	1.2	1.5	1.8
	Working Pressure (bar)
6	530	660	–	–
8	420	530	–	–
10	300	370	480	–
12	250	300	390	480

Fractional Alloy 625 Tubing

Table 22: Working Pressure for Fractional Alloy 625 Tubing
Tube O.D. (in.)	Tube Wall Thickness (in.)
	0.035	0.049	0.065
	Working Pressure (psig)
1/4"	7300	10700	14600
3/8"	4700	6800	9400
1/2"	3500	5000	6800

Metric Alloy 625 Tubing

Table 23: Working Pressure for Metric Alloy 625 Tubing
Tube O.D. (mm)	Tube Wall Thickness (mm)
	1.0	1.2	1.5	1.8
	Working Pressure (bar)
6	610	750	–	–
8	480	600	–	–
10	350	430	550	–
12	290	350	450	550

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Seamless Tubing Catalogue

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