Duplex Steel S32205 Instrumentation Tubes, SS 32205 Instrumentation Tubes, 32205 Stainless Steel Instrumentation Tube Manufacturer, SS 32205 Instrumentation Tube Supplier, SS 32205 Instrumentation Tube Exporter, Stainless Steel 32205 Precision Tubing, SS 32205 Small Diameter Tube ,SS 32205 Instrumentation Tubes
Duplex Steel S32205 Instrumentation Tubes are precision-engineered tubes made from nitrogen-enhanced duplex stainless steel, offering a superior balance of strength and corrosion resistance. Classified under UNS S32205, this grade is a more controlled version of S31803, providing enhanced performance, especially in harsh industrial environments. Its duplex microstructure—consisting of nearly equal parts austenite and ferrite—delivers excellent mechanical properties and superior corrosion resistance compared to standard austenitic stainless steels.
These tubes are primarily used in instrumentation and control systems where precision, pressure integrity, and chemical resistance are critical. Applications include pressure and flow measurement systems, control lines, hydraulic systems, and process instrumentation. Their high strength makes them suitable for compact, lightweight installations without compromising reliability, which is especially valuable in space-limited or weight-sensitive operations such as offshore platforms.
One of the key advantages of S32205 over traditional stainless steels like 316L is its excellent resistance to pitting, crevice corrosion, and stress corrosion cracking, particularly in chloride-rich or aggressive environments. This makes it an ideal material for use in marine, oil & gas, petrochemical, chemical processing, and power generation industries. The added nitrogen content in S32205 enhances its strength and corrosion resistance, especially under high-temperature and high-pressure service conditions.
Duplex S32205 Instrumentation Tubes are available in both seamless and welded forms, conforming to standards such as ASTM A789, ASTM A790, ASME SA789, and EN 10216-5. These tubes are manufactured with tight dimensional tolerances and high-quality surface finishes such as bright annealed, pickled, or polished, ensuring optimal performance in precision-critical instrumentation systems. Standard sizes range from 1/8” to 2” outer diameter, with various wall thicknesses and lengths as per project requirements.
Specification of Duplex Steel S32205 Instrumentation Tubes
| Property | Specification |
|---|---|
| Material Grade | Duplex Stainless Steel UNS S32205 (1.4462) |
| Product Type | Instrumentation Tubes |
| Standards | ASTM A789 / ASTM A790 / ASME SA789 / EN 10216-5 |
| Form | Seamless, Welded |
| Outer Diameter (OD) | 1/8” to 2” (3.18 mm to 50.8 mm) |
| Wall Thickness | 0.028” to 0.120” (0.71 mm to 3.05 mm) or as per customer requirement |
| Length | Up to 6 meters (custom lengths available), coils on request |
| Surface Finish | Bright Annealed, Pickled, Polished, Passivated |
| Yield Strength (0.2% offset) | ≥ 450 MPa |
| Tensile Strength | ≥ 620 MPa |
| Elongation | ≥ 25% |
| Hardness | ≤ 290 HB (Brinell Hardness) |
| Density | 7.8 g/cm³ |
| Operating Temperature Range | -50°C to +300°C (varies based on service conditions) |
| Corrosion Resistance | Excellent pitting, crevice, and stress corrosion cracking resistance |
| Microstructure | ~50% Austenite / ~50% Ferrite (balanced duplex) |
| End Finish | Plain, Beveled, Threaded, or Custom |
| Certifications Available | EN 10204 3.1 / 3.2, NACE MR0175 / ISO 15156, PED 2014/68/EU (upon request) |
| Applications | Instrumentation systems, control lines, process monitoring, hydraulic tubing |
In summary, Duplex Steel S32205 Instrumentation Tubes are a reliable and cost-effective solution for industries requiring robust, corrosion-resistant tubing for high-performance instrumentation systems. Their long service life, low maintenance requirements, and resistance to harsh conditions make them a top choice for engineers and designers looking for a strong, dependable material in challenging environments.
Chemical Composition of Duplex Steel S32205 Instrumentation Tubes
| Element | Composition (% by weight) |
|---|---|
| Carbon (C) | ≤ 0.030 |
| Manganese (Mn) | ≤ 2.00 |
| Silicon (Si) | ≤ 1.00 |
| Phosphorus (P) | ≤ 0.030 |
| Sulfur (S) | ≤ 0.020 |
| Chromium (Cr) | 22.0 – 23.0 |
| Nickel (Ni) | 4.5 – 6.5 |
| Molybdenum (Mo) | 3.0 – 3.5 |
| Nitrogen (N) | 0.14 – 0.20 |
| Iron (Fe) | Balance |
With a proven track record as a Duplex Steel S32205 Instrumentation Tubes exporter in over 30 countries, Sumer Metal Industries ensures global availability, third-party inspection support, and client-specific customization. Our wide export network combined with strict quality standards has made us a preferred choice for SS 32205 tubing worldwide.
Specification of Duplex Steel S32205 Instrumentation Tubes
| Property | Specification |
|---|---|
| Material Grade | Duplex Stainless Steel UNS S32205 (1.4462) |
| Product Type | Instrumentation Tubes |
| Standards | ASTM A789 / ASTM A790 / ASME SA789 / EN 10216-5 |
| Form | Seamless, Welded |
| Outer Diameter (OD) | 1/8” to 2” (3.18 mm to 50.8 mm) |
| Wall Thickness | 0.028” to 0.120” (0.71 mm to 3.05 mm) or as per customer requirement |
| Length | Up to 6 meters (custom lengths available), coils on request |
| Surface Finish | Bright Annealed, Pickled, Polished, Passivated |
| Yield Strength (0.2% offset) | ≥ 450 MPa |
| Tensile Strength | ≥ 620 MPa |
| Elongation | ≥ 25% |
| Hardness | ≤ 290 HB (Brinell Hardness) |
| Density | 7.8 g/cm³ |
| Operating Temperature Range | -50°C to +300°C (varies based on service conditions) |
| Corrosion Resistance | Excellent pitting, crevice, and stress corrosion cracking resistance |
| Microstructure | ~50% Austenite / ~50% Ferrite (balanced duplex) |
| End Finish | Plain, Beveled, Threaded, or Custom |
| Certifications Available | EN 10204 3.1 / 3.2, NACE MR0175 / ISO 15156, PED 2014/68/EU (upon request) |
| Applications | Instrumentation systems, control lines, process monitoring, hydraulic tubing |
🏭 Industry & Application
- ✅ SS 32205 Instrumentation Tubes for Medical Industry
- ✅ SS 32205 Instrumentation Tubes for Chemical Processing
- ✅ SS 32205 Tubes for Instrumentation Lines
- ✅ Duplex Steel S32205 Instrumentation Tubes for Gas & Liquid Flow
- ✅ SS 32205 Tubes for Heat Exchangers
❓ Frequently Asked Questions (FAQs)
Q1: What is Duplex Steel S32205?
Duplex Steel S32205 (UNS S32205 / 1.4462) is a nitrogen-enhanced duplex stainless steel that offers a balanced microstructure of austenite and ferrite. It provides superior strength and excellent resistance to corrosion, especially in chloride-rich and aggressive environments.
Q2: How is S32205 different from S31803?
While both grades are part of the Duplex 2205 family, S32205 has tighter chemical composition controls, especially for nitrogen, chromium, and molybdenum. This provides improved corrosion resistance and consistent mechanical properties, making S32205 a preferred choice in critical applications.
Q3:Where are Duplex S32205 Instrumentation Tubes used?
These tubes are used in instrumentation and control systems in industries such as oil & gas, chemical processing, marine, power generation, and desalination. Typical applications include pressure monitoring, flow control, hydraulic and pneumatic lines, and process instrumentation.
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