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What is Stainless Steel Instrumentation Tubing?
Stainless Steel Instrumentation Tubing is basically a tube with a thin wall which are known for offering leakage-free operations. The SS Instrumentation Tube material is one of the most popular and versatile alloy grades; they are used in various industries.
Depending on the media to which the Stainless Steel Instrument Tubing will come in contact with, the grade of the ss is decided. For example, if the application requires an affordable ss tubing solution with good tensile strength and moderate corrosion resistance, Stainless Steel 304 Instrumentation Tubing is the best option. But if the tube is to be used in brine or marine applications, 316 Stainless Steel Instrumentation Tubing will be a better choice. Tubotech is Genuine and Experianced Stainless Steel Instrumentation Tubing Manufacturer in India
What is Bright Annealed Instrument Tubing?
To get bring annealed ASTM A269 TP304 Instrument Tube, annealing is performed on the tube in a controlled atmosphere. This controlled environment can include vacuum or inert gases. It helps to reduce the surface oxidation to a minimum which gives a brighter surface.
Due to bright annealing- the SA 213 Instrumentation Tubing gets a high quality smooth, bright and clean surface. It acquires precision in dimensional tolerances and enhanced corrosion resistance and strength. When the Solution anneal stainless instrumentation tube is operated in a controlled environment- it yields finer grain size and better surface finish.
Table of Contents
Specifications of Stainless Steel Instrumentation Tubing
SS Instrumentation Tube Size Range
Stainless Steel Instrument Tubing Thickness
Stainless Steel 304 Instrumentation Tubing Length
316 SS Instrumentation Tubing Outside Diameter
Seamless Instrumentation Tubing Pressure Rating
Stainless Steel Instrument Air Tubing Grades
SS Instrument Capillary Tubing Standards
SS 304 Instrumentation Tubing Types
Stainless Steel Instrument Tubing Marking
SA 213 Instrumentation Tubing Technique
Welded Stainless Instrumentation Tubing Processing Service
SS Instrumentation Tube Delivery Condition
Difference between Welded and Seamless Instrumentation Tubing
The Seamless Instrumentation Tubing is manufactured through the extrusion process- they come without any welded seams and have lesser chances of leakages. They are stronger and used for more critical procedures.
The Welded Stainless Instrumentation Tubing is produced from a roll formed strip and they are welded to produce a tube. The welded tubes are more affordable, and they are available in longer continuous lengths.
SS Instrumentation Tube Types
SS Instrument Capillary Tubing
Stainless Steel Instrument Air Tubing
Welded Stainless Instrumentation Tubing
316 Stainless Steel Seamless Instrumentation Tubing
SS Instrument Impulse Tubing
Stainless Steel Bright Annealed Instrument Tubing
Stainless Steel 304 Instrument Tubing Sizes
| TUBE O.D (M) | TUBE WALL THICKNESS (MM) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.071 | 0.089 | 1.00 | 1.25 | 1.50 | 1.65 | 2.00 | 2.11 | 2.41 | 2.50 | 2.77 | 3.00 | 3.05 | |
| 12 | 3000 | 3400 | 4400 | 5300 | 5900 | 6800 | 7200 | ||||||
| 16 | 2500 | 3200 | 3900 | 4300 | 5300 | 5700 | 6600 | 6800 | |||||
| 18 | 2800 | 3400 | 3800 | 4700 | 5000 | 5800 | 6000 | 6700 | |||||
| 3 | 10800 | 13800 | 15300 | ||||||||||
| 4 | 7900 | 10100 | 11500 | 14400 | |||||||||
| 5 | 5000 | 6500 | 7400 | 9400 | 11500 | 12700 | |||||||
| 8 | 4700 | 5800 | 6800 | 8400 | 9300 | ||||||||
| 10 | 3700 | 4200 | 5300 | 6500 | 7300 | ||||||||
| 20 | 2500 | 3000 | 3400 | 4200 | 4400 | 5100 | 5300 | 6000 | |||||
| 22 | 2300 | 2800 | 3000 | 3800 | 4000 | 4600 | 4800 | 5400 | |||||
| 25 | 2000 | 2400 | 2700 | 3300 | 3500 | 4000 | 4200 | 4700 | 5100 | 5200 | |||
SS 316 Seamless Instrument Tubing Tolerance
| Nominal Wall Thickness | Length Tolerance | Outer Diameter Size | Wall Thickness Tolerance | Outside Diameter Tolerance | ||||
|---|---|---|---|---|---|---|---|---|
| Inch | Inch | mm | Inch | mm | (%) | mm | Inch | mm |
| 0.065 | +⅛, -0 | 19.1 | ¾ | 1.65 | +/-10.0% | +/-0.13 | +/-0.005 | +3.18, -0 |
| 0.065 | +⅛, -0 | 63.5 | 2½ | 1.65 | +/-10.0% | +/-0.25 | +/-0.010 | +3.18, -0 |
| 0.083 | +⅛, -0 | 101.6 | 4 | 2.11 | +/-10.0% | +/-0.38 | +/-0.015 | +3.18, -0 |
| 0.065 | +⅛, -0 | 25.4 | 1 | 1.65 | +/-10.0% | +/-0.13 | +/-0.005 | +3.18, -0 |
| 0.065 | +⅛, -0 | 76.2 | 3 | 1.65 | +/-10.0% | +/-0.25 | +/-0.010 | +3.18, -0 |
| 0.065 | +⅛, -0 | 38.1 | 1½ | 1.65 | +/-10.0% | +/-0.20 | +/-0.008 | +3.18, -0 |
| 0.065 | +⅛, -0 | 12.7 | ½ | 1.65 | +/-10.0% | +/-0.13 | +/-0.005 | +3.18, -0 |
| 0.065 | +⅛, -0 | 50.8 | 2 | 1.65 | +/-10.0% | +/-0.20 | +/-0.008 | +3.18, -0 |
| 0.109 | +1, -0 | 152.4 | 6 | 2.77 | +/-10.0% | +/-0.76 | +/-0.030 | +25.4, -0 |
Temperature Derating Factors of SS Instrument Tubing
| Temperature | Stainless ASTM Steel A269 | ||
|---|---|---|---|
| °F | °C | SS304 | SS316 |
| 100 | 38 | 1 | 1 |
| 200 | 93 | 1 | 1 |
| 300 | 149 | 1 | 1 |
| 400 | 204 | 0.94 | 0.97 |
| 500 | 260 | 0.88 | 0.9 |
| 600 | 316 | 0.82 | 0.85 |
| 700 | 371 | 0.8 | 0.82 |
| 800 | 427 | 0.76 | 0.8 |
| 900 | 482 | 0.73 | 0.78 |
| 1000 | 538 | 0.69 | 0.77 |
| 1200 | 649 | 0.3 | 0.37 |
SS Instrumentation Tubing Price List
| Sizes | Price in USD | Price in Malaysia | Price in Saudi Arabia |
|---|---|---|---|
| 1/2" x 0.035 | $4.37 | MYR 20.56 | SAR 16.39 |
| 1/2" x 0.049 | $5.65 | MYR 26.58 | SAR 21.19 |
| 1/2" x 0.065 | $6.45 | MYR 30.35 | SAR 24.19 |
| 1/4" x 0.035 | $2.44 | MYR 11.48 | SAR 9.15 |
| 1/4" x 0.049 | $3.30 | MYR 15.52 | SAR 12.38 |
| 1/4" x 0.065 | $4.23 | MYR 19.90 | SAR 15.87 |
| 3/8" 0.035 | $3.24 | MYR 15.24 | SAR 12.15 |
| 3/8" 0.049 | $4.49 | MYR 21.12 | SAR 16.84 |
| 3/8" 0.065 | $5.46 | MYR 25.69 | SAR 20.48 |
| 5/16" 0.035 | $5.98 | MYR 28.14 | SAR 22.43 |
Stainless Steel Instrument Tube Installation Standards
| Point To Check Before Installation | Description |
|---|---|
| Material | Follow ASTM A268, A269, A213, and A789 Guidelines. |
| Size Of Tube | Use the Appropriate Wall Thickness and Diameter. |
| Cutting | Using the Proper Equipment, Cut Squarely. |
| Deburring | From the Cut Edges, Remove Burrs. |
| Fittings | Fittings Should Match the Type and Size of Tubing. |
| Installation | Follow ANSI/ASME Standards |
| Support | Support Tubing to Stop Vibrations and Stress. |
| Sealing | Make Sure Every Connection Has Been Leak-tested and Sealed. |
| Cleaning | Particularly for Important Uses, Clean Before Installing. |
| Inspection | Examine Frequently for Damage and Wear. |
Pressure Rating of SS Instrument Capillary Tubing
| 316 or 304 Stainless Steel (Seamless) | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tube O.D. Size |
Wall Thickness | |||||||||||||||
| 0.016 | 0.012 | 0.010 | 0.014 | 0.028 | 0.020 | 0.049 | 0.035 | 0.083 | 0.065 | 0.109 | 0.095 | 0.134 | 0.120 | 0.156 | 0.188 | |
| 1/8 | 8600 | 10900 | ||||||||||||||
| 1/16 | 9500 | 6900 | 5600 | 8200 | 16800 | 12100 | ||||||||||
| 3/16 | 5500 | 10300 | 7000 | |||||||||||||
| 5/16 | 5900 | 4100 | 8100 | |||||||||||||
| 1/4 | 4000 | 7500 | 5100 | 10300 | ||||||||||||
| 3/8 | 4800 | 3300 | 6600 | |||||||||||||
| 5/8 | 3000 | 5200 | 4000 | 6100 | ||||||||||||
| 1-1/2 | 2700 | 2400 | 3400 | 3000 | 4000 | 4500 | ||||||||||
| 1/2 | 3700 | 2600 | 6700 | 5100 | ||||||||||||
| 3/4 | 2400 | 4300 | 3300 | 5800 | 5000 | |||||||||||
| 1 | 3200 | 2400 | 4200 | 3700 | 4700 | |||||||||||
| 7/8 | 2100 | 3600 | 2800 | 4900 | 4200 | |||||||||||
| 1-1/4 | 2500 | 3300 | 2900 | 4100 | 3700 | 4900 | ||||||||||
| 2 | 2000 | 2500 | 2200 | 2900 | 3200 | |||||||||||
| 316 or 304 Stainless Steel (Welded) | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tube O.D. Size |
Wall Thickness | |||||||||||||||
| 0.016 | 0.012 | 0.010 | 0.014 | 0.028 | 0.020 | 0.049 | 0.035 | 0.083 | 0.065 | 0.109 | 0.095 | 0.134 | 0.120 | 0.156 | 0.188 | |
| 1/16 | 8100 | 5900 | 4800 | 7000 | 14300 | 10300 | ||||||||||
| 1/8 | 7300 | 9300 | ||||||||||||||
| 3/16 | 4700 | 8700 | 6000 | |||||||||||||
| 1/4 | 3400 | 6400 | 4400 | 8700 | ||||||||||||
| 5/16 | 5000 | 3400 | 6900 | |||||||||||||
| 3/8 | 4100 | 2800 | 5600 | |||||||||||||
| 1-1/4 | 2100 | 2800 | 2400 | 3500 | 3100 | 4200 | ||||||||||
| 1/2 | 3200 | 2200 | 5700 | 4300 | ||||||||||||
| 5/8 | 2500 | 4500 | 3400 | 5200 | ||||||||||||
| 3/4 | 2100 | 3700 | 2800 | 4900 | 4200 | |||||||||||
| 7/8 | 1800 | 3100 | 2400 | 4200 | 3600 | |||||||||||
| 1 | 2700 | 2100 | 3600 | 3100 | 4000 | |||||||||||
| 1-1/2 | 2300 | 2000 | 2900 | 2600 | 3400 | 4200 | ||||||||||
| 2 | 1700 | 2100 | 1900 | 2500 | 3000 | |||||||||||
Stainless Instrument Tubing Working Principle
| Aspect | Description |
|---|---|
| Construction and Design | |
| Dimensions | Varied Wall Thicknesses and Diameters |
| Tubing Types | Welded Or Seamless |
| Features Of Design | |
| - Pressure and Temperature | Withstands High Temperatures and Pressures |
| - Smooth Interior Surface | Minimises Roughness and Resistance to Flow |
| Principle Of Working | |
| Pressure Handling | Keeps Its Structural Integrity Under Stress. |
| Fluid Conduction | Transports Gases and Liquids Effectively With Little Resistance |
| Uses | |
| Instrumentation | Used in Measurement Devices and Sensors |
| Medical and Pharmaceutical | Maintains Sterility and Guards Against Contamination |
| Chemical Processing | Ideal for Highly Pure and Corrosive Fluids |
| Maintenance and Installation | |
| Cleaning | Prior to Use, It Must Be Cleaned and Sanitised. |
| Fittings and Connections | Needs Appropriate Fittings in Order to Stop Leaks |
Compare Annealed vs Bright Annealed Instrument Tubing
| Feature | Bright Annealed Instrument Tubing | Annealed Instrument Tubing |
|---|---|---|
| Surface Finish | Glossy and Smooth | Dull or Matte |
| Process | Rapidly Heated and Cooled in a Regulated Environment | Gently Heated and Cooled |
| Corrosion Resistance | Excellent | Good |
| Appearance | Outstanding, Spotless Appearance | Less Eye-Catching |
| Surface Cleanliness | Generally, Cleaner | Probably Requires Further Cleaning |
| Cost | High | Low |
| Applications | Hygienic or Highly Visible Applications | Used in Situations Where Appeal is Not as Important |
| Mechanical Properties | Because to the Superior Polish, Slightly Better | Good |
Stainless Steel Instrument Tubing Stock For Sale
316 Stainless Steel Coil Tube for Instrumentation Lines
3 to 50mm Stainless Steel SS304 Seamless Instrumentation Metric Tube
304 Stainless Steel Capillary Tube for Instrumentation and Control
TP316L Bright Annealed Stainless Steel Seamless Tube for Instrumentation
Sanitary Grade Bright Polish Precision Stainless Steel Capillary Tube for Instrumentation
Annealed TP304 Stainless Steel Seamless 25mm 20mm 18mm Instrumentation Tube
3/8 Inch SS316 Seamless Instrumentation Fractional Tube
321 Stainless Steel Round Instrumentation Tubes
6 Meters Precision Cut Stainless Steel SUS 304 Tubes for Medical Instrumentation
Selection Criteria Stainless Steel Instrument Air Tubing
| Material Of Tubing | Application | Temperature Range Recommended |
|---|---|---|
| Stainless Steel (Type 316) |
High Temperature, High Pressure, Generally Corrosive Media | (-255°C to 605°C) 425°F to 1,200°F1 |
| Before Buy From Any Stainless Steel Instrumentation Tubing Manufacturer in India, Check Below Point | |
|---|---|
| Selection Criteria | Description |
| Material | Stainless steel |
| Size and Dimensions | Conform Wall Thickness and Diameter to System Specifications. |
| Pressure Rating | Verify That the Tubing Can Withstand the Highest Operating Pressure. |
| Temperature Range | Compliant With the Temperature Range of Operation |
| Corrosion Resistance | Excellent Resistance to Chemicals and Corrosion |
| Flexibility | Think on if Rigid or Flexible Tubing is Required. |
| Surface Finish | A Smooth Inside Surface to Reduce Friction |
| Compliance | Follow Industry Guidelines |
| Fittings Compatibility | Compatible With the Current Connectors and Fittings |
| Cleaning Requirements | Cleanable Tubing is Necessary, Particularly for Vital Applications. |
Application Of Stainless Instrumentation Tube
Ordering Guidelines Of SS Instrument Capillary Tubing
| Material | ASTM Specifications |
Grades | Recommended Hardness Max. | Condition |
|---|---|---|---|---|
| Stainless Steel | ASTM A-249, A-269, A632, A-213 | 316, 304, 316L | 90 Rb | Fully Annealed |
Chemical Composition of SS Instrument Impulse Tubing
TP304 Stainless Steel
TP316 Stainless Steel
SA 213 Instrumentation Tubing Mechanical Properties
| Class | Tensile Strength mpa, (min) | Yield Strength mpa, (min) | Age Extension in 50 mm gauge length min | Hardness (max) | |
|---|---|---|---|---|---|
| bhn | rb | ||||
| 304 | 585 | 244 | 56 | 191 | 72 |
| 316 | 615 | 245 | 57 | 197 | 75 |
| 304L | 585 | 210 | 56 | 191 | 72 |
| 316L | 585 | 215 | 56 | 197 | 75 |
Stainless Steel Instrument Air Tubing Equivalent
| - | Russia | North America |
|---|---|---|
| Grade | Werkstoff | Unified Numbering System |
| 304L | 1.4306 | S30403 |
| 316L | 1.4404 | S31603 |
| 316 | 1.4436 | S31600 |
| 304 | 1.4301 | S30400 |
ASTM A269 Permissible Variation in Tubing OD and WT
| Tube O.D. In. | Permissible Variation in WT. % | Permissible Variation in OD, In. (mm) |
|---|---|---|
| Up to 1/2 | +/- 15% | +/- 0.005 (0.13) |
| 1/2 to 1 1/2, excl. | +/- 10% | +/- 0.005 (0.13) |