Steelage Alloys provides high-precision Stainless Steel Instrumentation Pipes & Tubes engineered for critical flow control and measurement applications. Designed with tight dimensional tolerances, smooth internal finishes, and exceptional corrosion resistance, these tubes are ideal for use in oil & gas, petrochemical, power generation, offshore, and analytical instrumentation systems.
Manufactured via cold drawing and bright annealing, our instrumentation tubes ensure high pressure tolerance, low contamination risk, and consistent performance in demanding environments. Each tube is thoroughly tested for leak-proof operation and seamless integration with fittings and valves.
Corrosion Resistant
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| Property | Details |
|---|---|
| Tube Size Range | OD: 1/8” to 1” (3.17 mm to 25.4 mm) |
| Wall Thickness | 0.028” to 0.083” (0.7 mm to 2.1 mm) |
| Standard Length | Up to 6 meters/custom lengths available |
| Finish | Bright Annealed / Electropolished (on request) |
| Tolerances | As per ASTM A269, ASTM A213, ASTM A632, EN 10216-5 |
| Testing | Eddy Current, Hydrostatic, PMI, Surface Roughness, Ferrite% |
| Standard | Description / Use |
|---|---|
| ASTM A213 | Standard for seamless austenitic stainless steel tubes for high-temperature and pressure applications. |
| ASTM A269 | Specification for seamless and welded austenitic stainless steel tubing for general corrosion-resisting and instrumentation use. |
| ASTM A632 | Covers small-diameter, thin-wall tubing for corrosion-resisting and high-purity systems — often used in instrumentation. |
| EN 10216-5 | European standard for seamless stainless steel tubes for pressure purposes. |
| DIN 17458 / DIN | German standards for precision stainless steel tubing — common in European instrumentation lines. |
| ISO 1127 | International standard specifying dimensions, tolerances, and mechanical properties for stainless steel tubes. |
Round Bar
Analytic
Cut to Length
Centering
Heating
Perforation
Inspection of Size
Pickling
Inspection of Surface
Lubricating
Cold Drawing
Degreasing
Annealing
Straightening
Cut
Pickling / Passivating
Inspection
Analytic
Marking
Packing & Shipping
Formula: m = (OD - THK) × THK (mm) × L (m) × 0.02491
* For 316, 316L, 310S, 309S, etc., ratio=0.02507
OD = Outer diameter, THK = Wall Thickness, L = Length
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Wooden case
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