Wholesale AISI Super Duplex 2507 stainless steel capillary tubing Manufacturers, Factory

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Wholesale AISI Super Duplex 2507 stainless steel capillary tubing Manufacturers, Factory

1.Production standards: ASTM A269/A249

2.Stainless steel material :304 304L 316L(UNS S31603) Duplex 2205 (UNS S32205 & S31803) Super Duplex 2507 (UNS S32750) Incoloy 825 (UNS N08825) Inconel 625 (UNS N06625)

3. Size range: diameter 3MM(0.118”-25.4(1.0”)MM

4. Wall thicknesses: 0.5mm (0.020’’) to 3mm (0.118’’)

5.General delivery pipe status: half hard / soft bright annealing

6.The tolerance range: diameter: + 0.1mm, wall thickness: + 10%, length: -0/+6mm

7.Coil lengthsup to: 500MM-13500MM (45000feet)(can be adjusted according to customer requirements)

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Product Description

Manufacturing Range

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 specific requests.

Capillary tubes are available with a maximum bore of 0.0158 in. 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. Welded and seamless tube products are manufactured in standard grades including 304, 304L, 316L (UNS S31603), Duplex 2205 (UNS S32205 & S31803), Super Duplex 2507 (UNS S32750), Incoloy 825 (UNS N08825), and Inconel 625 (UNS N06625). Other grades of stainless steel in duplex, superduplex, 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.

Specifications

Parameter	Details
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 annealing, cleaning, 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. To assist in selection, the following tables provide internal pressure ratings and adjustment factors for common grades and sizes of seamless and laser-welded stainless tubing.

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

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 a specific grade/temperature combination, multiply Pw by the corresponding 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 a grade/temperature combination, multiply Pb by the 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.

Chemical Composition & Mechanical Properties

316 Stainless Steel Capillary Tube Composition

Grade	UNS	C max.	Cr	Ni	Mo	Others
TP 316L	S31600 / S31603	0.03	17.5	13	2.1	0.1

Mechanical Properties

Grade	Yield Strength, psi (MPa)	Tensile Strength, psi (MPa)	Elongation %
TP 316L	32,000 (220)	75,000 (515)	35

Corrosion Properties

Grade	UNS	PRE 1)	CPT 2) °F (°C)	Max H2S 3) psi	CO2 4)
TP 316L	S31600 / S31603	24	95 (35)	No limit	+

▼ Stainless Steel Coiled Tubing Material Grade Comparison

U.S.A. AISI	GERMANY DIN 17006	GERMANY W.N. 17007	FRANCE AFNOR	JAPAN JIS	ITALY UNI	SWEDEN SIS	U.K. BSI	E.U. EURONORM	RUSSIA
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	12KH18N9
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	-	12KH18N10E
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	08KH18N10
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	03KH18N11
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	-	20KH23N18
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	10KH23N18
314	X 15 CrNiSi 25 20	1.4841	Z 12 CNS 25-20	-	X 16 CrNiSi 2520	-	-	X 15 CrNiSi 25 20	20KH25N20S2
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 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	03KH17N14M2
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	-
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	08KH18N10T
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	08KH18N12B
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	-	-	-	-	-	-
410	X 6 Cr 13	1.4000	Z 10 C 13	SUS 410	X 12 Cr 13	23 02	410S21	X 12 Cr 13	12Kh13

Quality Advantages

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 rigorous 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 Tubing

➤ Medical device industry

➤ Temperature-guided sensors

➤ Industrial temperature control

➤ Core tubes for pens

➤ Micro-tube antennas

➤ Precision electronic capillaries

➤ Jewelry needle punches

➤ Watches and components

➤ Car and bar antenna tubes

➤ Laser engraving equipment

➤ Fishing gear and accessories

➤ Food and beverage distribution

➤ Phone and computer styluses

➤ Heating pipes and oil industry

➤ Printer and silent box needles

➤ Double-melt window-coupled tubes

➤ Dispensing needles

➤ Audio & microphone tubing

Product Gallery

Stainless steel capillary tube structure

Frequently Asked Questions (FAQ)

What are the primary applications of stainless steel capillary tubes?

Stainless steel capillary tubes are widely utilized in high-precision industries including medical devices, industrial temperature sensors, instrumentation, micro-antennas, electronics, chemical dosing, and oil and gas control lines.

What material grades are available for coiled tubing?

Standard grades include 304, 304L, 316L (UNS S31603), Duplex 2205 (UNS S32205 & S31803), Super Duplex 2507 (UNS S32750), Incoloy 825 (UNS N08825), and Inconel 625 (UNS N06625). Other specialized grades are available upon request.

What size ranges can be manufactured?

The outer diameter (OD) ranges from 3mm (0.118’’) to 25.4mm (1.00’’), and the wall thickness ranges from 0.5mm (0.020’’) to 3mm (0.118’’). Capillary tubes can have a maximum bore limit down to 0.0158 inches.

How are the internal surfaces of the capillary tubes cleaned?

All capillary tubes undergo bright annealing, which ensures the inside surface is completely free from oil, grease, dust, and other micro-particles, maintaining an optimized, consistent flow of liquids and gases.

What quality assurance tests do these tubes undergo?

The tubes undergo non-destructive testing, hydrostatic testing, surface finish inspections, dimensional accuracy verification, flare and coning tests, and comprehensive mechanical and chemical property analyses.

Are custom packing methods available?

Yes, coiled tubes can be packaged using woven bags, plastic wrapping, wooden spools, or other customized configurations to secure the tubing during transit and storage.

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