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Stainless Steel 316 ERW Micro Tubes Manufacturer & Exporter

What Are Stainless Steel 316 Welded / ERW Micro Tubes?

Stainless Steel 316 Welded / ERW Micro Tubes are miniature-size high-quality tubes crafted from the finest austenitic stainless steel grade 316. Manufactured through an efficient ERW or Electric Resistance Welded tube producing technology, these micro tubes offer remarkable dimensional precision, superb corrosion resistance properties, high strength to bear internal pressure, and exceptionally polished interior surfaces. The applications for 316L Stainless Steel Welded Micro Tubes are innumerable in a multitude of fields ranging from sophisticated instrument systems, hydraulic operations, medical equipment, heat exchangers, analytical equipment, and high-purity industrial fluid transfer systems, etc.

Table of Content


Introduction


Our premium Stainless Steel 316 Welded Micro Tubes provide precision and quality for a multitude of industrial applications.

Stainless steel 316 ERW micro tubes are well suited for use in environments where superior corrosion resistance, consistent performance, long service life, and precise dimensional control are paramount. Molybdenum present in Stainless Steel 316 grades increases the alloy’s resistance to chlorides, process streams, and chemicals, particularly when exposed to a saline sea water environment, making stainless steel 316 welded micro tubes ideal for a range of uses.

Uses for Stainless Steel 316 Welded Micro Tubes include:

  •   Instrumentation tubing
  •   Process tubing and flow measurement systems
  •   Pharmaceutical and food processing equipment
  •   Chemical process equipment
  •   Marine applications

Manufactured to international quality standards, including DIN 17457 Stainless Steel Tube and ASTM A312 Welded Pipes specifications.

Stainless Steel 316 Welded Micro Tubes Specification


Specification Details
Material GradeStainless Steel 316
UNS NumberS31600
WERKSTOFF NR.1.4401
Manufacturing ProcessWelded / ERW
StandardsASTM A312, ASTM A269, DIN 17457
Outside Diameter0.5 mm to 25 mm
Wall Thickness0.1 mm to 3 mm
LengthCustom Cut Lengths, Coil Lengths
FinishBright Annealed, Polished, Mill Finish
ShapeRound, Square, Rectangular
TestingPMI, Hydro Test, Eddy Current Test, Dimensional Inspection

Key Features of Stainless Steel 316 ERW Micro Tubes


Our stainless steel 316 welded micro tube manufacturer facility focuses on producing tubing that meets stringent industrial requirements.

Excellent Corrosion Resistance

The molybdenum content in SS 316 provides superior resistance against chlorides, acids, and harsh industrial chemicals.

High Precision Manufacturing

Our precision ERW stainless steel micro tubes are produced with tight tolerances to ensure accuracy in instrumentation and fluid handling systems.

Smooth Surface Finish

The smooth internal and external finish minimizes contamination risks and improves fluid flow efficiency.

Good Mechanical Strength

SS 316 micro tubes maintain excellent structural integrity even under high pressure and elevated temperature conditions.

Superior Weld Integrity

Advanced ERW manufacturing technology creates strong, uniform weld seams with excellent performance characteristics.

Long Service Life

These tubes require minimal maintenance and provide extended operational life in demanding environments.

Stainless Steel 316 Welded Micro Tubes for Instrumentation Applications


One of the most common uses of stainless steel 316 welded micro tubes for instrumentation is in precision control and measurement systems.

Industries rely on these micro tubes for:

  •   Pressure sensing systems
  •   Flow measurement equipment
  •   Analytical instruments
  •   Process control systems
  •   Pneumatic controls
  •   Hydraulic instrumentation
  •   Gas sampling systems
  •   Laboratory equipment

The excellent dimensional consistency of SS 316 tubing ensures accurate signal transmission and fluid delivery within instrumentation networks.

Stainless Steel 316 ERW Micro Tubes for Industrial Use


Our stainless steel 316 ERW micro tubes for industrial use are engineered to perform reliably in challenging operating conditions.

Chemical Processing Plants

Resistant to aggressive chemicals and corrosive fluids.

Pharmaceutical Manufacturing

Suitable for sterile and hygienic processing environments.

Food & Beverage Industry

Provides contamination-free fluid transfer and processing.

Marine Equipment

Offers excellent resistance to seawater and salt-rich atmospheres.

Oil & Gas Systems

Used in instrumentation lines, control systems, and fluid transport applications.

Power Generation

Supports high-performance heat transfer and fluid handling systems.

Automotive Components

Used in fuel lines, hydraulic systems, and emission control equipment.

Manufacturing Process of Stainless Steel 316 Welded / ERW Micro Tubes


The quality of micro tubing depends heavily on manufacturing precision.

Step 1: Raw Material Selection

Premium SS 316 coils and strips are sourced from approved mills and verified for chemical composition.

Step 2: Strip Forming

The stainless steel strip is precisely formed into a tubular shape using advanced roll-forming equipment.

Step 3: Electric Resistance Welding (ERW)

The tube edges are joined through high-frequency electric resistance welding, producing a strong and uniform weld seam.

Step 4: Heat Treatment

Controlled heat treatment enhances mechanical properties and relieves residual stresses.

Step 5: Sizing & Calibration

Precision sizing equipment ensures consistent outer diameter and wall thickness.

Step 6: Surface Finishing

The tubes undergo polishing, cleaning, and finishing processes to achieve the desired surface quality.

Step 7: Inspection & Testing

Every batch is subjected to comprehensive quality checks before dispatch.

Quality Testing of Stainless Steel 316 ERW Micro Tubes


To ensure compliance with international standards, we conduct rigorous testing procedures:

  •   Positive Material Identification (PMI)
  •   Hydrostatic Testing
  •   Eddy Current Testing
  •   Flattening Test
  •   Flaring Test
  •   Dimensional Verification
  •   Surface Inspection
  •   Chemical Analysis
  •   Mechanical Property Testing
  •   Corrosion Resistance Evaluation

These tests ensure that every tube meets the requirements of ASTM A312 Welded Pipes and relevant international specifications.

Why Choose Stainless Steel 316 Welded Micro Tubes?


When selecting tubing for critical industrial applications, reliability and consistency are essential.

Our products offer:

  •   High corrosion resistance
  •   Precision dimensional accuracy
  •   Excellent weld quality
  •   Long service life
  •   Compliance with ASTM and DIN standards
  •   Competitive pricing
  •   Custom manufacturing capabilities
  •   Global export supply
  •   Fast delivery schedules
  •   Full material traceability

Difference Between Stainless Steel 316 Welded Micro Tubes and Seamless Micro Tubes


Property Welded / ERW Micro Tubes Seamless Micro Tubes
ManufacturingERW ProcessExtrusion & Piercing
CostMore EconomicalHigher Cost
Dimensional AccuracyExcellentGood
AvailabilityWidely AvailableLimited Sizes
Surface FinishSuperiorGood
Pressure PerformanceHighVery High
Lead TimeFasterLonger

For most instrumentation and industrial applications, stainless steel 316 ERW micro tubes provide an excellent balance of performance, availability, and cost efficiency.

Industries We Serve


Our stainless steel micro tubing solutions are supplied to:

  •   Instrumentation Industry
  •   Petrochemical Industry
  •   Chemical Processing Plants
  •   Pharmaceutical Industry
  •   Food Processing Industry
  •   Marine Industry
  •   Power Plants
  •   Heat Exchanger Manufacturers
  •   Automotive Industry
  •   Research Laboratories
  •   Medical Equipment Manufacturers
  •   Semiconductor Industry

Frequently Asked Questions


What is the advantage of stainless steel 316 ERW micro tubes?

SS 316 ERW micro tubes offer excellent corrosion resistance, dimensional accuracy, smooth surface finish, and cost-effective performance for industrial and instrumentation applications.

Are stainless steel 316 welded micro tubes suitable for instrumentation?

Yes. Stainless steel 316 welded micro tubes for instrumentation are widely used because of their precision tolerances, reliability, and resistance to corrosion.

Which standards are followed for SS 316 welded micro tubes?

These tubes are commonly manufactured according to ASTM A312, ASTM A269, and DIN 17457 specifications.

Can SS 316 ERW micro tubes be customized?

Yes. Custom diameters, wall thicknesses, lengths, and finishes can be supplied based on project requirements.

What industries use stainless steel 316 micro tubes?

Chemical processing, pharmaceutical, marine, food processing, instrumentation, oil & gas, and power generation industries commonly use SS 316 micro tubes.

Request a Quote for Stainless Steel 316 Welded / ERW Micro Tubes


As an experienced stainless steel 316 welded micro tube manufacturer and stainless steel 316 welded micro tubes supplier, we provide precision-engineered tubing solutions that comply with international quality standards. Whether you require stainless steel 316 ERW micro tubes for industrial use, instrumentation systems, hydraulic applications, or specialized process equipment, our team can help you source the right tubing specification for your project requirements.