Global Supplier of Wholesale AISI 410 Stainless Steel Capillary Tubing Manufacturer for B2B Procurement

stainless steel coil tube stainless steel tube coil stainless steel coil tubing stainless steel coil pipe stainless steel coil tube suppliers stainless steel coil tube manufacturers stainless steel pipe coil

Stainless steel capillary and stainless steel small tubes are widely used in medical treatment, fiber-optic, pen making, electronic welding products, light cable joints, food, vintage, dairy, drinks, pharmacy, and biochemistry. Different lengths can be provided according to requests.

Capillary tubes with a maximum bore of 0.0158 in. are available in a wide range of stainless steels. These capillary tubes are characterized by tight tolerances, and the inside surface of the tubes is free from oil, grease, and other particles. This ensures, for example, an optimized and even flow of liquids and gases from the sensor to the measuring instrument.

Stainless steel Coiled tubing is available in a range of different product forms depending on customer requirements. Our manufacturers produce welded and seamless tube products. The standard grades are 304, 304L, 316L (UNS S31603), Duplex 2205 (UNS S32205 & S31803), Super Duplex 2507 (UNS S32750), Incoloy 825 (UNS N08825), Inconel 625 (UNS N06625), and 410. Other grades of stainless steel in duplex, super duplex, and nickel alloy are available on request.

Diameter ranges from 3mm (0.118’’) to 25.4mm (1.00’’) OD. Wall thickness ranges from 0.5mm (0.020’’) to 3mm (0.118’’). Tubing can be supplied in the annealed or cold-worked stainless steel control line pipe condition.

Specification

Property	Details
Brand	Premium Grade OEM / ODM
Thickness	0.1-2.0mm
Diameter	0.3-20mm (tolerance: ±0.01mm)
Stainless Grade	201, 202, 304, 304L, 316L, 317L, 321, 310s, 254mso, 904L, 2205, 625 etc.
Surface Finish	Inside and outside are both bright annealed, cleaned, and seamless, no leaks.
Standard	ASTM A269-2002, JIS G4305 / GB/T 12770-2002, GB/T12771-2002
Length	200-1500m per coil, or as customer required
Stock Size	61mm, 80.5mm, 80.6mm, 80.8mm, 80.9mm, 81mm, 9.51mm, 101mm, etc.
Certificate	ISO & BV
Packing Way	Woven bags, plastic bags etc.
Application Range	Widely used in food industry, beverage equipment, beer machine, heat exchanger, milk/water supply system, medical equipment, solar energy, aviation, aerospace, communications, oil, and other industries.
Note	OEM / ODM / Buyer Label accepted.

Size of Stainless Steel Coil Tube

ITEM	Grade	Size (MM)	Pressure (Mpa)	Length (M)
1	316L, 304L, 304, Alloy 625, 825, 2205, 2507	1/8″×0.025″	3200	500-35000
2	316L, 304L, 304, Alloy 625, 825, 2205, 2507	1/8″×0.035″	3200	500-35000
3	316L, 304L, 304, Alloy 625, 825, 2205, 2507	1/4″×0.035″	2000	500-35000
4	316L, 304L, 304, Alloy 625, 825, 2205, 2507	1/4″×0.049″	2000	500-35000
5	316L, 304L, 304, Alloy 625, 825, 2205, 2507	3/8″×0.035″	1500	500-35000
6	316L, 304L, 304, Alloy 625, 825, 2205, 2507	3/8″×0.049″	1500	500-35000
7	316L, 304L, 304, Alloy 625, 825, 2205, 2507	1/2″×0.049″	1000	500-35000
8	316L, 304L, 304, Alloy 625, 825, 2205, 2507	1/2″×0.065″	1000	500-35000
9	316L, 304L, 304, Alloy 625, 825, 2205, 2507	φ3mm×0.7mm	3200	500-35000
10	316L, 304L, 304, Alloy 625, 825, 2205, 2507	φ3mm×0.9mm	3200	500-35000
11	316L, 304L, 304, Alloy 625, 825, 2205, 2507	φ4mm×0.9mm	3000	500-35000
12	316L, 304L, 304, Alloy 625, 825, 2205, 2507	φ4mm×1.1mm	3000	500-35000
13	316L, 304L, 304, Alloy 625, 825, 2205, 2507	φ6mm×0.9mm	2000	500-35000
14	316L, 304L, 304, Alloy 625, 825, 2205, 2507	φ6mm×1.1mm	2000	500-35000
15	316L, 304L, 304, Alloy 625, 825, 2205, 2507	φ8mm×1mm	1800	500-35000
16	316L, 304L, 304, Alloy 625, 825, 2205, 2507	φ8mm×1.2mm	1800	500-35000
17	316L, 304L, 304, Alloy 625, 825, 2205, 2507	φ10mm×1mm	1500	500-35000
18	316L, 304L, 304, Alloy 625, 825, 2205, 2507	φ10mm×1.2mm	1500	500-35000
19	316L, 304L, 304, Alloy 625, 825, 2205, 2507	φ10mm×2mm	500	500-35000
20	316L, 304L, 304, Alloy 625, 825, 2205, 2507	φ12mm×1.5mm	500	500-35000

Pressure Tables

Selection of the appropriate material for any given control or chemical injection line is subject to the prevailing operational and site conditions. In order to assist in the selection, the following tables provide internal pressure ratings and adjustments factors for a range of common grades and sizes of seamless and laser-welded stainless tubing.

Maximum pressure (P) for TP 316L at 100°F (38°C)

Please refer to grade and product form adjustment factors below.

Outside Diameter (in.)	Wall Thickness (in.)	Working Pressure psi (MPa)	Burst Pressure psi (MPa)	Collapse Pressure psi (MPa)
1/4	0.035	6,600 (46)	22,470 (155)	6,600 (46)
1/4	0.049	9,260 (64)	27,400 (189)	8,710 (60)
1/4	0.065	12,280 (85)	34,640 (239)	10,750 (74)
3/8	0.035	4,410 (30)	19,160 (132)	4,610 (32)
3/8	0.049	6,170 (43)	21,750 (150)	6,220 (43)
3/8	0.065	8,190 (56)	25,260 (174)	7,900 (54)
3/8	0.083	10,450 (72)	30,050 (207)	9,570 (66)
1/2	0.049	4,630 (32)	19,460 (134)	4,820 (33)
1/2	0.065	6,140 (42)	21,700 (150)	6,200 (43)
1/2	0.083	7,840 (54)	24,600 (170)	7,620 (53)
5/8	0.049	3,700 (26)	18,230 (126)	3,930 (27)
5/8	0.065	4,900 (34)	19,860 (137)	5,090 (35)
5/8	0.083	6,270 (43)	26,910 (151)	6,310 (44)
3/4	0.049	3,080 (21)	17,470 (120)	3,320 (23)
3/4	0.065	4,090 (28)	18,740 (129)	4,310 (30)
3/4	0.083	5,220 (36)	20,310 (140)	5,380 (37)

1) Estimates only. Actual pressures should be calculated considering all stress factors in the system.
2) Based on calculations from API 5C3, using a wall tolerance of +/-10%
3) Based on ultimate strength burst calculations from API 5C3
4) Based on yield strength collapse calculations from API 5C3

Adjustment factors for working pressure limits

Pw = reference working pressure rating for TP 316L at 100°F (38°C). To determine working pressure for grade/temperature combination, multiply Pw by adjustment factor.

Grade	100°F (38°C)	200°F (93°C)	300°F (149°C)	400°F (204°C)
TP 316L, seamless	1	0.87	0.7	0.63
TP 316L, welded	0.85	0.74	0.6	0.54
Alloy 825, seamless	1.33	1.17	1.1	1.03
Alloy 825, welded	1.13	1.99	1.94	0.88

1) Adjustment factors based on allowable stress in ASME.

Adjustment factors for burst pressure limits

Pb = reference burst pressure for TP 316L at 100°F. To determine burst pressure for grade/temperature combination, multiply Pb by adjustment factor.

Grade	100°F (38°C)	200°F (93°C)	300°F (149°C)	400°F (204°C)
TP 316L, seamless	1	0.93	0.87	0.8
TP 316L, welded	0.85	0.79	0.74	0.68
Alloy 825, seamless	1.13	1.07	1	0.87
Alloy 825, welded	0.96	0.91	0.85	0.74

1) Adjustment factors based on ultimate strength in ASME.

Stainless Steel Coiled Tubing / Coiled Tubes Material Grade Reference

U.S.A. (AISI)	GERMANY (DIN)	GERMANY (W.N.)	FRANCE (AFNOR)	JAPAN (JIS)	ITALY (UNI)	SWEDEN (SIS)	U.K. (BSI)	E.U. (EURONORM)
201	-	-	-	SUS 201	-	-	-	-
301	X 12 CrNi 17 7	1.4310	Z 12 CN 17-07	SUS 301	X 12 CrNi 1707	23 31	301S21	X 12 CrNi 17 7
302	X 5 CrNi 18 7	1.4319	Z 10 CN 18-09	SUS 302	X 10 CrNi 1809	23 31	302S25	X 10 CrNi 18 9
303	X 10 CrNiS 18 9	1.4305	Z 10 CNF 18-09	SUS 303	X 10 CrNiS 1809	23 46	303S21	X 10 CrNiS 18 9
303 Se	-	-	Z 10 CNF 18-09	SUS 303 Se	X 10 CrNiS 1809	-	303S41	-
304	X 5 CrNi 18 10	1.4301	Z 6 CN 18-09	SUS 304	X 5 CrNi 1810	23 32	304S15	X 6 CrNi 18 10
304 N	-	-	-	SUS 304N1	X 5 CrNiN 1810	-	-	-
304 H	-	-	-	SUS F 304H	X 8 CrNi 1910	-	-	-
304 L	X 2 CrNi 18 11	1.4306	Z 2 CN 18-10	SUS 304L	X 2 CrNi 1911	23 52	304S11	X 3 CrNi 18 10
305	-	-	Z 8 CN 18-12	SUS 305	X 8 CrNi 1812	23 33	305S19	X 8 CrNi 18 12
309	X 15 CrNiS 20 12	1.4828	Z 15 CN 24-13	SUH 309	X 16 CrNi 2314	-	309S24	X 15 CrNi 23 13
309 S	-	-	-	SUS 309S	X 6 CrNi 2314	-	-	X 6 CrNi 22 13
310	X 12 CrNi 25 21	1.4845	-	SUH 310	X 22 CrNi 2520	-	310S24	-
310 S	X 12 CrNi 25 20	1.4842	Z 12 CN 25-20	SUS 310S	X 5 CrNi 2520	23 61	-	X 6 CrNi 25 20
314	X 15 CrNiSi 25 20	1.4841	Z 12 CNS 25-20	-	X 16 CrNiSi 2520	-	-	X 15 CrNiSi 25 20
316	X 5 CrNiMo 17 12 2	1.4401	Z 6 CND 17-11	SUS 316	X 5 CrNiMo 1712	23 47	316S31	X 6 CrNiMo 17 12 2
316 F	X 12 CrNiMoS 18 11	1.4427	-	-	-	-	-	-
316 N	-	-	-	SUS 316N	-	-	-	-
316 H	-	-	-	SUS F 316H	X 8 CrNiMo 1712	-	-	-
316 L	X 2 CrNiMo 17 13 2	1.4404	Z 2 CND 17-12	SUS 316L	X 2 CrNiMo 1712	23 48	316S11	X 3 CrNiMo 17 12 2
317	-	-	-	SUS 317	X 5 CrNiMo 1815	23 66	317S16	-
317 L	X 2 CrNiMo 18 16 4	1.4438	Z 2 CND 19-15	SUS 317L	X 2 CrNiMo 1815	23 67	317S12	X 3 CrNiMo 18 16 4
330	X 12 NiCrSi 36 16	1.4864	Z 12NCS 35-16	SUH 330	-	-	-	-
321	X 6 CrNiTi 18 10	1.4541	Z 6 CNT 18-10	SUS 321	X 6 CrNiTi 1811	23 37	321S31	X 6 CrNiTi 18 10
321 H	-	-	-	SUS 321H	X 8 CrNiTi 1811	-	321S20	-
329	X 8 CrNiMo 27 5	1.4460	-	SUS 329J1	-	23 24	-	-
347	X 6 CrNiNb 18 10	1.4550	Z 6 CNNb 18-10	SUS 347	X 6 CrNiNb 1811	23 38	347S31	X 6 CrNiNb 18 10
347 H	-	-	-	SUS F 347H	X 8 CrNiNb 1811	-	-	-
904L	-	1.4939	Z 12 CNDV 12-02	-	-	-	-	-
UNS31803	X 2 CrNiMoN 22 5	1.4462	-	-	-	-	-	-
UNS32760	X 3 CrNiMoN 25 7	1.4501	Z 3 CND 25-06Az	-	-	-	-	-
403	X 6 Cr 13	1.4000	Z 12 C 13	SUS 403	X 12 Cr 13	23 02	403S17	X 10 Cr 13
405	X 6 CrAl 13	1.4002	Z 6 CA 13	SUS 405	X 6 CrAl 13	-	405S17	X 6 CrAl 13
409	X 6 CrTi 12	1.4512	Z 6 CT 12	SUH 409	X 6 CrTi 12	-	409S19	X 5 CrTi 12
410	X 6 Cr 13	1.4000	Z 10 C 13	SUS 410	X 12 Cr 13	23 02	410S21	X 12 Cr 13
410 S	X 6 Cr 13	1.4000	Z 6 C 13	SUS 410S	X 6 Cr 13	23 01	403S17	X 6 Cr 13

Factory Infrastructure

Quality Advantage

The quality of our products for the control line in the oil and gas sector is assured not just during the controlled manufacturing process but also by way of finished product testing. Typical tests include:

Non-destructive tests
Hydrostatic tests
Surface finish controls
Dimensional accuracy measurements
Flare and coning tests
Mechanical and chemical property testing

Application of Capillary Tubes

Medical device industry
Temperature-guided industrial temperature control, sensor tubes, thermometer tubes
Pens care industry core tubes
Micro-tube antennas, various types of small precision stainless steel antennas
Various electronic small-diameter stainless steel capillaries
Jewelry needle punches
Watches, picture frames
Car antenna tubes, bar antennas, telescopic antenna tubes
Laser engraving equipment stainless steel tubing
Fishing gear accessories
Dietary/food sector stainless steel capillaries
Mobile phone and computer stylus components
Heating pipe industry, oil industry
Printers, silent box needles
Double-melt stainless steel tubes used in window couplers
Industrial small-diameter precision stainless steel tubes
Precision dispensing stainless steel needles
Microphones, headphones, and microphone tubes

Product Packaging & Details

Frequently Asked Questions

What are the primary applications of stainless steel capillary tubes?

They are widely used in medical devices, temperature sensors, thermometer tubes, micro-antennas, precision electronics, writing pens, and high-precision industrial sectors requiring clean, micro-diameter tubing.

What material grades are available for coiled tubing?

We offer standard grades including TP 304, 304L, 316L, Duplex 2205, Super Duplex 2507, Alloy 825, Alloy 625, and grade 410. Other custom stainless steel and nickel alloy grades are available upon request.

What size tolerances do you guarantee on capillary tubes?

Our tubes feature tight dimensional control, boasting diameter tolerances down to ±0.01mm. This ensures consistent, optimized liquid and gas flow rates for high-precision instruments.

How are these coiled and capillary tubes tested for quality?

Every tube undergoes extensive quality control. This includes non-destructive testing (NDT), hydrostatic tests, surface finish checks, dimensional accuracy measurements, and mechanical/chemical property analyses.

Are the internal surfaces of the tubing clean and contaminant-free?

Yes. Both the inside and outside surfaces undergo bright annealing and rigorous cleaning to ensure they are fully free from oil, grease, particulates, and leaks.

How does temperature affect the working pressure limits of the tubes?

As temperature increases, working pressure limits decrease. You must apply adjustment factors (e.g., multiplying by 0.63 for seamless TP 316L at 400°F) to verify safe operating parameters.