E-Catalogue

SS 304 Stainless Steel Capillary Tubes & Precision Tubing Supplier in India

Stainless steel capillary tubes are ideal for industries and applications where accurate transfer of liquids, high-pressure resistance, corrosion resistance and dimensional tolerance are necessary. These narrow and thin stainless steel capillary tubing have fine diameters and thicknesses. The major usage includes medical devices, analytical equipment, aviation, and industrial automation. We are one of the most reputed stainless steel capillary coil tube manufacturer and supplier in India providing high-quality seamless and welded capillary tubes with precision dimensions and tight tolerance in a wide variety of stainless steel grades.

We supply 304 stainless steel capillary tubes, SS 304 precision tubing, and thin wall stainless steel capillary tubes per global quality standards. Our stainless steel capillary tubing is supplied in a straight length or coil or as per customer custom dimensions. We offer reliable high-pressure stainless steel capillary tubes with smooth inner finish and consistent mechanical characteristics and superior corrosion resistance.

What are Stainless Steel Capillary Tubes?

These are ultra thin narrow inner diameter high precision Stainless Steel Capillary Tubes used for applications with precision flow rate, high pressure performance and strict dimensional accuracy and tolerancing. The size of such tubes' inner diameter is very less and this is used for applications that are sensitive to it.

SS 304, SS 316 & duplex are the most popular Stainless Steel Capillary Tubes grades available due to their inherent corrosion resistance & strength.

Our seamless stainless steel capillary tubing coils are manufactured using advanced production methods to ensure:

  •   Uniform wall thickness
  •   High pressure tolerance
  •   Burr-free inner surface
  •   Smooth fluid flow
  •   Tight dimensional tolerances
  •   Excellent weldability and formability

Table of Content


SS 304 Precision Tubing Exporter and Supplier in India


We are an exporter and supplier of SS 304 Precision Tubing in India catering to all those who require reliable and precision tubing solutions. Amongst all the available Stainless Steel grades, SS 304 is widely preferred for precision tubings as it is known for its resistance to corrosion, and mechanical strength and purity in nature.

304 stainless steel capillary tubes are extensively used in:

  •   Medical devices
  •   Food processing equipment
  •   Hydraulic systems
  •   Heat exchangers
  •   Instrumentation systems
  •   Chromatography equipment
  •   Automotive sensors
  •   Pharmaceutical processing units

Our SS 304 precision tubing is available in customized wall thicknesses, outer diameters, and lengths to meet industrial specifications.

Features of Thin Wall Stainless Steel Capillary Tubes


Thin wall stainless steel capillary tubes are designed for applications where lightweight construction and precise fluid control are essential. These tubes offer exceptional performance under demanding conditions.

Key Features

  •   High dimensional accuracy
  •   Excellent corrosion resistance
  •   Smooth internal and external finish
  •   Leak-proof performance
  •   High pressure resistance
  •   Superior strength-to-weight ratio
  •   Excellent temperature resistance
  •   Easy fabrication and bending

Our manufacturing process ensures consistent quality and reliable performance even in high-temperature and high-pressure environments.

Seamless Stainless Steel Capillary Tubing Coils


Seamless stainless steel capillary tubing coils are widely used in industries requiring continuous tubing without welded joints. Seamless construction improves strength and eliminates the risk of leakage or joint failure.

These tubing coils are commonly used in:

  •   Gas distribution systems
  •   Analytical instrumentation
  •   Medical applications
  •   Aerospace systems
  •   Hydraulic control systems
  •   Chemical processing industries

We supply seamless stainless steel capillary tubing coils in multiple coil lengths and finishes with precise tolerances for critical industrial applications.

Stainless Steel Capillary Tubes for Needles


Stainless steel capillary tubes for needles are manufactured for medical and precision engineering applications where extremely fine diameters and smooth surface finishes are required.

These tubes are commonly used in:

  •   Hypodermic needles
  •   Surgical instruments
  •   Diagnostic devices
  •   Veterinary equipment
  •   Laboratory instruments
  •   Dental tools

Our capillary tubes are manufactured using high-grade stainless steel materials to ensure hygienic performance, corrosion resistance, and precise dimensional control.

Stainless Steel Capillary Tube Specifications


Specification Details
ProductStainless Steel Capillary Tubes
Material GradesSS 304, SS 304L, SS 316, SS 316L
Manufacturing TypeSeamless / Welded & Drawn
StandardsASTM A269, ASTM A213, ASTM A632
Outside Diameter (OD)0.30 mm to 25.40 mm
Inside Diameter (ID)As per wall thickness
Wall Thickness0.05 mm to 3.00 mm
Tube Length1 m, 2 m, 3 m, 6 m & Custom Length
Coil LengthUp to 1000 meters (depending on size)
FormStraight Length / Coil
Surface FinishBright Annealed, Pickled, Polished, Electropolished
End FinishPlain End, Deburred, Chamfered
ConditionAnnealed, Half Hard, Full Hard
ToleranceASTM Standard / Customer Specification
Mill Test CertificateEN 10204 3.1

Stainless Steel Capillary Tube Size Chart


Outside Diameter (OD) Wall Thickness Inside Diameter (Approx.) Available Form
0.50 mm0.10 mm0.30 mmStraight / Coil
0.80 mm0.15 mm0.50 mmStraight / Coil
1.00 mm0.20 mm0.60 mmStraight / Coil
1.20 mm0.20 mm0.80 mmStraight / Coil
1.50 mm0.25 mm1.00 mmStraight / Coil
2.00 mm0.30 mm1.40 mmStraight / Coil
3.00 mm0.50 mm2.00 mmStraight / Coil
4.00 mm0.50 mm3.00 mmStraight / Coil
6.00 mm1.00 mm4.00 mmStraight / Coil
8.00 mm1.00 mm6.00 mmStraight / Coil
10.00 mm1.20 mm7.60 mmStraight / Coil

Custom dimensions, tolerances, and coil lengths are available based on project-specific requirements.

Every capillary tube is manufactured using advanced cold drawing and controlled heat treatment processes to achieve exceptional dimensional precision, smooth surface finish, and consistent mechanical properties. Whether you require stainless steel capillary tubes for needles, laboratory instruments, or industrial fluid systems, our products are engineered to meet demanding performance standards while ensuring long-term reliability and cost-effective operation.

Chemical Composition of Stainless Steel Capillary Tubes


The presence of chemical elements in the constitution of stainless steel is a significant factor in determining the anti-corrosive nature of the SS capillary tubes along with mechanical integrity and performance. While among these, SS 304 and SS 316 are two widely acclaimed grades that deliver the optimal blend of value and performance.

Chemical Composition Chart (%)

Element SS 304 SS 304L SS 316 SS 316L
Carbon (C)0.08 Max0.03 Max0.08 Max0.03 Max
Chromium (Cr)18.00–20.0018.00–20.0016.00–18.0016.00–18.00
Nickel (Ni)8.00–10.508.00–12.0010.00–14.0010.00–14.00
Molybdenum (Mo)——2.00–3.002.00–3.00
Manganese (Mn)2.00 Max2.00 Max2.00 Max2.00 Max
Silicon (Si)1.00 Max1.00 Max1.00 Max1.00 Max
Phosphorus (P)0.045 Max0.045 Max0.045 Max0.045 Max
Sulfur (S)0.030 Max0.030 Max0.030 Max0.030 Max
Nitrogen (N)0.10 Max0.10 Max0.10 Max0.10 Max
Iron (Fe)BalanceBalanceBalanceBalance

Mechanical Properties of Stainless Steel Capillary Tubes


Our stainless steel capillary tubes are manufactured to deliver excellent tensile strength, ductility, and toughness, ensuring reliable performance under demanding operating conditions.

Mechanical Properties Chart

Property SS 304 SS 304L SS 316 SS 316L
Tensile Strength515 MPa Min485 MPa Min515 MPa Min485 MPa Min
Yield Strength205 MPa Min170 MPa Min205 MPa Min170 MPa Min
Elongation40%40%40%40%
Hardness (HB)201 Max201 Max217 Max217 Max
Density8.0 g/cm³8.0 g/cm³8.0 g/cm³8.0 g/cm³
Melting Range1400–1450°C1400–1450°C1375–1400°C1375–1400°C

Applications of Stainless Steel Capillary Tubes


Stainless steel capillary tubes are used across multiple industries because of their precision and durability.

Medical Industry

Used in syringes, surgical instruments, catheters, and precision medical devices.

Instrumentation Industry

Used in pressure gauges, analytical instruments, sensors, and control systems.

Aerospace Industry

Used in fuel lines, hydraulic systems, and aircraft instrumentation.

Chemical Processing

Suitable for transporting aggressive chemicals and corrosive fluids.

Food & Beverage Industry

Used in hygienic processing systems and automated production equipment.

Automotive Industry

Used in fuel injection systems, sensors, and hydraulic assemblies.

304 Stainless Steel Capillary Tubes Specifications


Material Grades

  •   SS 304
  •   SS 304L
  •   SS 316
  •   SS 316L

Outer Diameter Range

0.30 mm to 25 mm

Wall Thickness

0.05 mm to 2 mm

Form

  •   Straight Length
  •   Coils
  •   Seamless Tubes
  •   Welded Tubes

Surface Finish

  •   Bright Annealed
  •   Polished
  •   Electro Polished

Standards

  •   ASTM A213
  •   ASTM A269
  •   ASTM A632

Why Choose Us for Stainless Steel Capillary Tubes?


Choosing the right stainless steel capillary coil tube manufacturer is important for long-term performance and reliability.

Why Customers Prefer Our Products

  •   Precision manufacturing capabilities
  •   Strict quality inspection
  •   International material standards
  •   Customized dimensions available
  •   Competitive pricing
  •   Fast delivery schedules
  •   Export-quality packaging
  •   Technical support for industrial applications

We focus on delivering reliable tubing solutions that meet the performance requirements of modern industries.

Frequently Asked Questions


What are stainless steel capillary tubes used for?

Stainless steel capillary tubes are used in medical equipment, instrumentation, hydraulic systems, chromatography, aerospace, and chemical processing industries where precise fluid transfer is required.

Why is SS 304 used for precision tubing?

SS 304 precision tubing offers excellent corrosion resistance, strength, durability, and hygienic properties, making it suitable for industrial and medical applications.

What is the difference between seamless and welded capillary tubing?

Seamless tubing is manufactured without welded joints, providing higher pressure resistance and better structural integrity compared to welded tubing.

Are thin wall stainless steel capillary tubes suitable for high pressure?

Yes, thin wall stainless steel capillary tubes are designed to handle high-pressure environments while maintaining dimensional accuracy and corrosion resistance.

Do you provide customized capillary tubing sizes?

Yes, customized outer diameter, wall thickness, and tubing lengths are available based on project specifications.

Looking for High Precision Stainless Steel Capillary Tubes?


Get high-quality SS 304 precision tubing and seamless stainless steel capillary tubing coils manufactured to international standards. Contact us today for customized sizes, technical support, pricing, and bulk supply requirements.