Stainless Steel 316 Small Diameter Tubes Manufacturer and Supplier in India
When it comes to precision instrumentation and small systems that demand close tolerances and corrosion resistance, Stainless Steel 316 Small Diameter Tubing is an exacting product. These Stainless Steel 316 Small Diameter Tubes are usually available in 3.0mm to 12.7mm OD (1/8” to 1/2”). Small diameter 316 stainless steel tubes will include 2-3% molybdenum that will give them greater pitting and crevice corrosion resistance. This makes them very suitable for use in a corrosive environment that has chloride. The Controlled dimensions allow for easy coupling with compression fittings, valves, sensors and instruments. Amardeep Steel is a trusted manufacturer and supplier of Stainless Steel 316 Small Diameter Tubes in India providing precision tubing for stringent applications within industry.
Technical Data
Specifications of Stainless Steel 316 Small Diameter Tubes
| Standard Specification | Scope & Application Details |
|---|---|
| ASTM A269 / ASME SA269 | Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing for General Service (Primary standard for small-bore instrumentation tubing). |
| ASTM A213 / ASME SA213 | Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes (High-pressure small-bore applications). |
| ASTM A270 / ASME SA270 | Standard Specification for Seamless and Welded Austenitic Stainless Steel Sanitary Tubing (High-purity/electropolished applications). |
| ASTM A632 | Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing for General Service (Small-diameter and light-wall tubing). |
| Certification & Testing | EN 10204 3.1 MTC, NABL Lab Approved Reports, PMI Certified, Hydrostatic / Eddy Current Tested. |
Chemical Compositions of Stainless Steel 316 Small Diameter Tubes
| Element | Carbon (C) | Manganese (Mn) | Silicon (Si) | Phosphorus (P) | Sulfur (S) | Chromium (Cr) | Nickel (Ni) | Molybdenum (Mo) | Iron (Fe) |
|---|---|---|---|---|---|---|---|---|---|
| Min Wt % | — | — | — | — | — | 16.00 | 10.00 | 2.00 | Balance |
| Max Wt % | 0.08 | 2.00 | 0.75 | 0.045 | 0.030 | 18.00 | 14.00 | 3.00 | Balance |
Stainless Steel 316 Small Diameter Tubes Mechanical Properties
| Mechanical Property | Annealed Delivery Condition |
|---|---|
| Tensile Strength (Rm, min) | 515 MPa (75 ksi) |
| Yield Strength (0.2% Offset, Rp0.2, min) | 205 MPa (30 ksi) |
| Elongation (A5, min) | 35% |
| Hardness (Rockwell B, max) | 90 HRB |
| Hardness (Vickers / HV, max) | 200 HV |
Equivalent Grades of Stainless Steel 316 Small Diameter Tubes
| Standard System | Grade Designation | Alloy Type |
|---|---|---|
| UNS Designation | UNS S31600 | Standard Austenitic SS 316 |
| Werkstoff Nr. (WNR) | 1.4401 / 1.4436 | European Molybdenum Austenitic Equivalent |
| EN / ISO Standard | X5CrNiMo17-12-2 | Standard European Specification |
| AFNOR / BS | Z7 CND 17-11-02 / 316S31 | British & French Standard |
| JIS Standard | SUS 316 TB | Japanese Tubing Standard |
Stainless Steel 316 Small Diameters Tubes Size Chart
| Gauge | Wall (mm) | ID (mm) | OD (mm) | Wall (inches) | ID (inches) | OD (inches) |
|---|---|---|---|---|---|---|
| 36 | 0.051 | 0.101 | 0.203 | 0.002 | 0.004 | 0.008 |
| 34 | 0.051 | 0.127 | 0.229 | 0.002 | 0.005 | 0.009 |
| 33 | 0.051 | 0.152 | 0.254 | 0.002 | 0.006 | 0.010 |
| 31 | 0.089 | 0.102 | 0.279 | 0.004 | 0.004 | 0.011 |
| 30 | 0.077 | 0.152 | 0.305 | 0.003 | 0.006 | 0.012 |
| 29 | 0.076 | 0.178 | 0.330 | 0.003 | 0.007 | 0.013 |
| 27* | 0.102 | 0.203 | 0.406 | 0.004 | 0.008 | 0.016 |
| 26* | 0.102 | 0.254 | 0.457 | 0.004 | 0.010 | 0.018 |
| 25* | 0.128 | 0.254 | 0.510 | 0.005 | 0.010 | 0.020 |
| 24* | 0.128 | 0.305 | 0.560 | 0.005 | 0.012 | 0.022 |
| 23* | 0.153 | 0.330 | 0.640 | 0.006 | 0.013 | 0.025 |
| 22* | 0.152 | 0.406 | 0.710 | 0.006 | 0.016 | 0.028 |
| 21* | 0.150 | 0.510 | 0.810 | 0.006 | 0.020 | 0.032 |
| 20* | 0.153 | 0.584 | 0.890 | 0.006 | 0.023 | 0.035 |
| 19* | 0.208 | 0.685 | 1.100 | 0.008 | 0.027 | 0.043 |
| 18* | 0.195 | 0.850 | 1.240 | 0.008 | 0.033 | 0.049 |
| 17* | 0.185 | 1.100 | 1.470 | 0.008 | 0.043 | 0.058 |
| 16* | 0.225 | 1.200 | 1.650 | 0.009 | 0.047 | 0.065 |
| 15* | 0.235 | 1.350 | 1.820 | 0.010 | 0.053 | 0.072 |
| 14* | 0.250 | 1.550 | 2.050 | 0.010 | 0.061 | 0.081 |
| 13* | 0.285 | 1.770 | 2.340 | 0.011 | 0.070 | 0.092 |
| 12 special | 0.275 | 2.100 | 2.650 | 0.011 | 0.083 | 0.104 |
| 12* | 0.325 | 2.000 | 2.650 | 0.013 | 0.079 | 0.104 |
| 11* | 0.325 | 2.300 | 2.950 | 0.013 | 0.091 | 0.116 |
| 10* | 0.400 | 2.500 | 3.300 | 0.016 | 0.098 | 0.129 |
| 9 | 0.410 | 2.870 | 3.690 | 0.016 | 0.113 | 0.145 |
| 8 | 0.380 | 3.280 | 4.040 | 0.015 | 0.129 | 0.159 |
| 7 | 0.380 | 3.690 | 4.450 | 0.015 | 0.145 | 0.175 |
| 6 | 0.455 | 4.070 | 4.980 | 0.018 | 0.160 | 0.196 |
| 5 | 0.455 | 4.550 | 5.460 | 0.018 | 0.179 | 0.215 |
| 4 | 0.460 | 5.080 | 6.000 | 0.018 | 0.200 | 0.236 |
SS 316 Small Diameters Tubes Wall Thickness Chart
| Gauge | OD (mm) | ID (mm) | Wall Thickness (mm) | Available Temper |
|---|---|---|---|---|
| 27 | 0.406 | 0.203 | 0.102 | Annealed / Hard Drawn |
| 26 | 0.457 | 0.254 | 0.102 | Annealed / Hard Drawn |
| 25 | 0.508 | 0.254 | 0.127 | Annealed / Hard Drawn |
| 24 | 0.559 | 0.305 | 0.127 | Annealed / Hard Drawn |
| 23 | 0.635 | 0.330 | 0.152 | Annealed / Hard Drawn |
| 22 | 0.711 | 0.406 | 0.152 | Annealed / Hard Drawn |
| 21 | 0.813 | 0.508 | 0.152 | Annealed / Hard Drawn |
| 20 | 0.914 | 0.610 | 0.152 | Annealed / Hard Drawn |
| 19 | 1.067 | 0.686 | 0.203 | Annealed / Hard Drawn |
| 18 | 1.270 | 0.838 | 0.229 | Annealed / Hard Drawn |
| 17 | 1.651 | 1.194 | 0.229 | Annealed / Hard Drawn |
| 15 | 1.829 | 1.372 | 0.229 | Annealed / Hard Drawn |
| 14 | 2.108 | 1.600 | 0.254 | Annealed / Hard Drawn |
| 13 | 2.413 | 1.803 | 0.305 | Annealed / Hard Drawn |
| 12 | 2.769 | 2.159 | 0.305 | Annealed / Hard Drawn |
| 11 | 3.048 | 2.388 | 0.330 | Annealed / Hard Drawn |
| 10 | 3.404 | 2.692 | 0.356 | Annealed / Hard Drawn |
Applications and Industrial Uses of Stainless Steel 316 Small Diameter Tubes
- Instrumentation & Control Systems
- Pharmaceutical & Biotechnology Equipment
- Chemical Processing Plants
- Oil & Gas Instrumentation
- Food & Beverage Processing
- Medical & Laboratory Equipment
- Semiconductor & Electronics Manufacturing
- Hydraulic & Pneumatic Systems
Frequently Asked Questions
What are Stainless Steel 316 Small Diameter Tubes?
SS 316 Small Diameter Tubes are precision tubes with small outer diameters, commonly used for instrumentation, fluid handling, and compact process systems.
What is the difference between SS 316 and SS 316L small diameter tubes?
SS 316L has lower carbon content than SS 316, providing better resistance to sensitization and making it more suitable for welding.
Why is SS 316 preferred over SS 304 for small diameter tubing?
SS 316 contains molybdenum, which provides better resistance to pitting and crevice corrosion, especially in chloride-containing environments.
Are Stainless Steel 316 Small Diameter Tubes corrosion-resistant?
Yes. SS 316 offers excellent resistance to corrosion, pitting, and crevice corrosion in many aggressive environments.
Can SS 316 Small Diameter Tubes be used for high-pressure applications?
Yes. Seamless SS 316 small diameter tubes can be used for high-pressure applications when the tube size, wall thickness, and applicable pressure rating are properly selected.
