Wholesale 304 stainless steel capillary tubing Factory, Pricelist

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Wholesale 304 stainless steel capillary tubing Factory, Pricelist

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

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

Products Specification

Stainless steel capillary, stainless steel small tube is widely used in medical treatment, fiber-optic, pen making, electronic welding products, light cable joint, food, vintage, dairy, drink, pharmacy and biochemistry, different length can be provided according to requests.

Capillary tubes with a maximum bore of 0.0158 in., available in a wide range of stainless steels. 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 the 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), Inconel 625 (UNS N06625). Other grades of stainless steel in duplex and 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.

304 Stainless Steel Chemical Composition

Grade		C	Mn	Si	P	S	Cr	Mo	Ni	N
304	min.	–	–	–	–	–	18.0	–	8.0	–
304	max.	0.08	2.0	0.75	0.045	0.030	20.0	–	10.5	0.10

Stainless Steel 304 Mechanical Properties

Grade	Tensile Strength (MPa) min	Yield Strength 0.2% Proof (MPa) min	Elongation (% in 50mm) min	Hardness
Grade	Tensile Strength (MPa) min	Yield Strength 0.2% Proof (MPa) min	Elongation (% in 50mm) min	Rockwell B (HR B) max	Brinell (HB) max
304	515	205	40	92	201

Stainless Steel 304 Physical Properties

Grade	Density (kg/m3)	Elastic Modulus (GPa)	Mean Coefficient of Thermal Expansion (m/m/0C)			Thermal Conductivity (W/m.K)		Specific Heat 0-1000C (J/kg.K)	Electrical Resistivity (n.m)
Grade	Density (kg/m3)	Elastic Modulus (GPa)	0-1000C	0-3150C	0-5380C	at 1000C	at 5000C	Specific Heat 0-1000C (J/kg.K)	Electrical Resistivity (n.m)
304	8000	193	17.2	17.8	18.4	16.2	21.5	500	720

Electric Properties

Properties		Conditions
Properties		T (°C)	Treatment
Electric Resistivity (10-9W-m)	720	25

Equivalent Grades for 304 Stainless Steel

Grade	UNS No	Old British		Euronorm		Swedish SS	Japanese JIS	GOST
Grade	UNS No	BS	En	No	Name	Swedish SS	Japanese JIS	GOST
SS 304	S30400	304S31	58E	1.4301	X5CrNi18-10	2332	SUS 304	08Х18Н10

Specification Table

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.

Stainless Steel Coiled Tubing / Capillary Tubing Common Sizes

Grade range: 316L, 304, 304L, 2205, 904L, 2507, 625, 825 (MOQ: 500kgs)

0.25*0.08	1.4*0.4	2.3*0.2	3.2*0.25	4.5*0.7	6*0.45	8*0.3	11*0.5	0.8*0.2	10*1
0.3*0.1	1.5*0.1	2.3*0.25	3.2*0.3	4.5*0.75	6*0.5	8*0.4	11*1	0.85*0.175	12*0.5
0.4*0.1	1.5*0.125	2.3*0.3	3.2*0.35	4.5*0.8	6*0.6	8*0.45	11*1.5	1.1*0.2	12*1
0.5*0.1	1.5*0.15	2.4*0.15	3.2*0.4	4.5*0.9	6*0.7	8*0.5	11*2	1.1*0.3	12*1.5
0.5*0.125	1.5*0.2	2.4*0.2	3.2*0.5	4.5*1	6*0.8	8*0.6	11.1*0.4	1.2*0.135	12*2.0
0.5*0.15	1.5*0.25	2.4*0.25	3.2*0.6	4.7*0.2	6*0.9	8*0.7	12*0.2	1.6*0.25	12.8*1.6
0.6*0.1	1.5*0.3	2.4*0.3	3.2*0.8	4.7*0.25	6*1.0	8*0.8	12*0.25	1.9*0.1	14*0.5
0.6*0.125	1.5*0.35	2.4*0.4	3.4*0.5	4.7*0.3	6*1.2	8*0.9	12*0.3	2*0.3	14*1.5
0.6*0.15	1.5*0.4	2.4*0.5	3.5*0.15	4.8*0.125	6*1.25	8*1	12*0.4	2*0.4	14*2.0
0.63*0.15	1.5*0.45	2.4*0.6	3.5*0.2	4.8*0.2	6*1.5	8*1.2	12*0.5	2*0.5	15*0.5
0.7*0.1	1.5*0.5	2.4*0.7	3.5*0.25	4.8*0.25	6*2	8*1.5	12*1	2*0.6	15*1.5
0.7*0.125	1.6*0.1	2.4*0.75	3.5*0.3	4.8*0.3	6.35*0.3	8*2	12.3*0.4	2.5*0.25	15*2
0.7*0.15	1.6*0.125	2.4*0.8	3.5*0.4	4.8*0.5	6.35*0.5	8*2.5	12.7*0.3	2.5*0.3	16*0.5
0.7*0.2	1.6*0.15	2.5*0.1	3.5*0.5	5*0.1	6.35*0.7	8.5*0.2	13*0.5	2.5*0.5	16*1.0
0.8*0.1	1.6*0.2	2.5*0.15	3.5*0.55	5*0.15	6.35*1.0	8.5*0.25	13*1	3*0.5	16*1.5
0.8*0.125	1.6*0.25	2.5*0.2	3.5*0.7	5*0.2	6.4*0.225	8.5*0.3	13*1.5	3*0.8	16*2.0
0.8*0.15	1.6*0.3	2.5*0.25	3.5*0.8	5*0.25	6.5*0.2	8.5*0.4	13*2	3*1	17*1.5
0.8*0.2	1.6*0.35	2.5*0.3	3.5*1.0	5*0.3	6.5*0.25	8.5*0.5	13.5*0.5	4*0.3	17*2.0
0.8*0.25	1.6*0.4	2.5*0.35	3.5*1.15	5*0.35	6.5*0.3	8.5*1.0	14*0.25	4*0.5	18*1.5
0.9*0.1	1.65*0.3	2.5*0.4	3.6*0.15	5*0.4	6.5*0.4	8.5*1.3	14*0.3	4*1	18*2.0
0.9*0.15	1.7*0.1	2.5*0.45	3.7*0.15	5*0.45	6.5*0.5	8.5*1.5	14*0.5	4.8*0.15	19*1.5
0.9*0.2	1.7*0.15	2.5*0.5	3.7*0.2	5*0.5	6.5*0.6	8.9*1.4	14*1	5*0.5	19*2.0
0.9*0.25	1.7*0.2	2.5*0.6	3.7*0.5	5*0.6	6.5*0.7	9*0.2	14.2*0.2	5*1	20*1.0
1.0*0.1	1.7*0.25	2.5*0.65	3.8*0.2	5*0.7	6.5*0.8	9*0.25	15*0.3	5.5*1.75	20*1.5
1.0*0.125	1.7*0.3	2.5*0.7	3.8*0.25	5*0.75	6.5*0.9	9*0.3	15*0.5	6*0.15	20*2.0
1.0*0.15	1.8*0.1	2.5*0.85	3.8*0.3	5*0.8	6.5*1	9*0.4	15*1	6*0.25	20*2.5
1.0*0.2	1.8*0.15	2.6*0.15	3.9*0.2	5*0.9	6.5*1.3	9*0.5	16*0.5	6*0.3	21*1.0
1.0*0.25	1.8*0.2	2.6*0.2	4*0.1	5*1.0	6.7*0.5	9*0.6	16*1	6*0.5	22*1.5
1.0*0.3	1.8*0.25	2.6*0.3	4*0.15	5*1.2	6.8*0.15	9*0.7	17*0.5	6*0.85	25*1.5
1.0*0.35	1.8*0.3	2.6*0.5	4*0.2	5*1.5	7*0.15	9*0.8	17*1	6*1	28.6*1.5
1.1*0.1	1.8*0.35	2.65*0.15	4*0.25	5.2*0.2	7*0.2	9*0.9	18*0.5	7*0.3
1.1*0.12	1.8*0.4	2.7*0.15	4*0.3	5.2*0.3	7*0.25	9*1	18*1.0	7*0.5
1.1*0.125	1.9*0.1	2.7*0.2	4*0.35	5.2*0.45	7*0.3	9*1.5	19*0.5	7*1.0
1.1*0.15	1.9*0.15	2.7*0.3	4*0.4	5.2*0.5	7*0.35	9*2	19*1.0	8*0.5
1.1*0.2	1.9*0.2	2.8*0.15	4*0.45	5.4*0.2	7*0.4	9.5*0.25	20*0.5	8*1
1.1*0.25	1.9*0.25	2.8*0.2	4*0.5	5.45*0.275	7*0.45	9.5*0.3	21*0.5	9*0.5
1.2*0.1	2*0.1	2.8*0.25	4*0.6	5.5*0.15	7*0.5	9.5*0.5		9*1
1.2*0.12	2*0.125	2.8*0.3	4*0.7	5.5*0.2	7*0.6	9.5*0.7		10*0.5
1.2*0.125	2*0.15	2.8*0.5	4*0.75	5.5*0.25	7*0.7	9.5*1		10*1
1.2*0.15	2*0.2	2.8*0.7	4*0.8	5.5*0.3	7*0.8	9.5*1.5
1.2*0.2	2*0.25	2.9*0.3	4*0.9	5.5*0.4	7*0.9	10*0.2
1.2*0.25	2*0.3	3*0.1	4*1.0	5.5*0.5	7*1.0	10*0.25
1.2*0.3	2*0.35	3*0.15	4*1.25	5.5*0.6	7*1.2	10*0.3
1.2*0.4	2*0.4	3*0.2	4*1.5	5.5*0.7	7*1.5	10*0.4
1.3*0.1	2*0.45	3*0.25	4.2*0.2	5.5*0.75	7*2	10*0.5
1.3*0.12	2*0.5	3*0.3	4.2*0.25	5.5*0.8	7.5*0.2	10*0.6
1.3*0.125	2*0.6	3*0.35	4.2*0.3	5.5*1	7.5*0.25	10*0.7
1.3*0.135	2*0.7	3*0.4	4.2*0.4	5.6*0.85	7.5*0.3	10*0.8
1.3*0.15	2.1*0.15	3*0.5	4.2*0.5	5.7*0.2	7.5*0.4	10*0.9
1.3*0.175	2.1*0.2	3*0.6	4.3*0.9	5.7*0.3	7.5*0.5	10*1.0
1.3*0.2	2.1*0.25	3*0.7	4.4*0.45	5.8*0.15	7.5*0.6	10*1.5
1.3*0.25	2.1*0.65	3*0.75	4.4*0.5	5.8*0.2	7.5*0.7	10*2
1.3*0.3	2.2*0.15	3*0.8	4.5*0.15	5.8*0.5	7.5*0.8	10*2.5
1.4*0.1	2.2*0.2	3*0.9	4.5*0.2	5.8*0.7	7.5*0.9	10.3*0.2
1.4*0.15	2.2*0.25	3*1.0	4.5*0.25	6*0.15	7.5*1.0	10.8*0.2			soft bright
1.4*0.2	2.2*0.3	3*1.1	4.5*0.3	6*0.2	7.8*0.5	11*0.2			1.5*0.15
1.4*0.25	2.2*0.5	3*1.2	4.5*0.4	6*0.25	8*0.15	11*0.25			2*0.5
1.4*0.3	2.3*0.125	3.2*0.15	4.5*0.5	6*0.3	8*0.2	11*0.3			2.5*0.5
1.4*0.35	2.3*0.15	3.2*0.2	4.5*0.6	6*0.4	8*0.25	11*0.4			5*0.5

Quality Advantage & Testing

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

1. Non-destructive tests

Ensures internal integrity and defect-free structure.

2. Hydrostatic tests

Verifies tube strength and leak resistance under pressure.

3. Surface finish controls

Guarantees smooth inner and outer surfaces.

4. Dimensional accuracy measurements

Maintains tight tolerance requirements.

5. Flare and coning tests

Checks mechanical ductility and connection capability.

6. Mechanical and chemical testing

Confirms correct chemical composition and strength properties.

Application of Capillary Tubes & Coiled Tubing

✓Medical device industry

✓Temperature-guided industrial control, sensors used pipe, tube thermometer

✓Pens care industry core tube

✓Micro-tube antenna, small precision stainless steel antenna

✓Electronic small-diameter stainless steel capillary

✓Jewelry needle punch

✓Watches and precision instruments

✓Car antenna tube, bar antennas using tubes, antenna tube

✓Laser engraving equipment to use stainless steel tube

✓Fishing gear, accessories

✓Diet industry with stainless steel capillary

✓Mobile phone stylus & computer stylus

✓Heating pipe industry, oil industry

✓Printers, silent box needle

✓Double-melt stainless steel tube used in window-coupled

✓Industrial small diameter precision stainless steel tubes

✓Precision dispensing with stainless steel needles

✓Microphone, headphones and microphone stainless steel tube

Frequently Asked Questions (FAQ)

Q1: What standard grades are available for stainless steel coiled tubing?

A1: Standard available 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 duplex and nickel alloys can be provided upon request.

Q2: What are the main dimensional ranges for these capillary and coiled tubes?

A2: The tube outer diameters (OD) range from 3mm (0.118’’) to 25.4mm (1.00’’) with wall thicknesses from 0.5mm (0.020’’) to 3mm (0.118’’). Capillary tubes can feature a maximum bore down to 0.0158 in.

Q3: How is the quality of the control line tubing assured?

A3: Tubing quality is ensured through rigorous finished-product testing, including non-destructive tests, hydrostatic pressure tests, surface finish controls, dimensional accuracy measurements, flare and coning tests, alongside mechanical and chemical property testing.

Q4: What surface finish conditions are supplied?

A4: The tubes feature a bright annealing finish both internally and externally. They are thoroughly cleaned, seamless, and verified leak-free to ensure optimized, clean flow for sensitive equipment.

Q5: In what lengths and packing styles is coiled tubing delivered?

A5: Coils are commonly supplied in lengths ranging from 200m to 1500m per coil, or customized as required. Packing options include woven bags, plastic bags, and other protective transport configurations.

Q6: What are the primary industries that utilize these precision tubes?

A6: These tubes are widely used in medical devices, temperature sensors, electronic components, aerospace, communications, food and beverage systems, heat exchangers, and the oil and gas sector.