Stainless Steel 309 Instrumentation Tubes, SS 309 Instrumentation Tubes, ss 309 Stainless Steel Instrumentation Tube Manufacturer, SS 309 Instrumentation Tube Supplier, SS 309Instrumentation Tube Exporter, Stainless Steel 309Precision Tubing, SS 309Small Diameter Tube ,SS 309Instrumentation Tubes
Stainless Steel 309 Instrumentation Tubes are specialized tubing products designed for high-precision applications in extreme temperature and corrosive environments. Made from austenitic stainless steel alloy 309, these tubes contain a high percentage of chromium (22–24%) and nickel (12–15%), which significantly enhances their resistance to oxidation, scaling, and chemical attack. These properties make them ideal for demanding instrumentation tasks where accuracy and durability are critical.
One of the key advantages of 309 stainless steel instrumentation tubes is their exceptional performance in high-temperature environments. They can withstand continuous exposure to temperatures up to 1000°C (1832°F) without losing structural integrity. This makes them a preferred choice in industries such as petrochemical, power generation, and furnace manufacturing, where materials are subjected to thermal cycling and aggressive media. Additionally, their superior resistance to sulfidation and other forms of corrosion ensures a longer service life with reduced maintenance needs.
In terms of mechanical properties, SS 309 offers high tensile strength, good ductility, and reliable formability, making it suitable for bending, coiling, and welding processes. This allows the tubing to be adapted for complex installation configurations without compromising performance. Its compatibility with a wide range of industrial fittings and connectors further enhances its versatility in fluid and gas measurement, control, and distribution systems.
Overall, Stainless Steel 309 Instrumentation Tubes provide an ideal combination of strength, heat resistance, and corrosion protection. Their ability to maintain performance under harsh conditions makes them an essential component in critical industries, offering reliable service and high efficiency over extended operational periods. Whether used in high-pressure instrumentation lines or corrosive chemical environments, these tubes deliver dependable results and long-term value.
Specification of Stainless Steel 309 Instrumentation Tubes
| Specification | Details |
|---|---|
| Material Grade | Stainless Steel 309 / 309S |
| Standard Specifications | ASTM A213, ASTM A269, ASTM A312 |
| Type | Seamless / Welded / Bright Annealed |
| Outer Diameter (OD) | 1/8" to 2" (3.18 mm to 50.8 mm) |
| Wall Thickness | 0.5 mm to 3.0 mm (custom sizes available) |
| Length | Single Random, Double Random, or Custom Cut Lengths |
| Surface Finish | Bright Annealed, Polished, Pickled, or Descaled |
| Form | Straight Tubes / Coiled Tubing |
| Tolerances | As per ASTM / EN / DIN Standards |
| Temperature Range | Up to 1000°C (1832°F) |
| End Connections | Plain End, Beveled End, Threaded (as per requirement) |
| Applications | Instrumentation Systems, Control Lines, Chemical Processing, Power Plants, Oil & Gas, High-Temperature Furnaces |
| Manufacturing Method | Cold Drawn / Hot Finished |
| Certifications | EN 10204 3.1 / 3.2, NACE MR0175, ISO 9001 |
These instrumentation tubes are manufactured to meet stringent international standards such as ASTM A213, A269, and A312, ensuring consistent quality and dimensional accuracy. Available in a variety of sizes, wall thicknesses, and finishes (including bright annealed and polished), they are supplied in both seamless and welded forms. Precision manufacturing allows for tight tolerances, which is essential for instrumentation systems where fluid or gas flow must be carefully controlled.
Chemical Composition of Stainless Steel 309 Instrumentation Tubes
| Element | Composition (%) |
|---|---|
| Carbon (C) | ≤ 0.20 |
| Manganese (Mn) | ≤ 2.00 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 |
| Silicon (Si) | ≤ 1.00 |
| Chromium (Cr) | 22.0 – 24.0 |
| Nickel (Ni) | 12.0 – 15.0 |
| Iron (Fe) | Balance |
They promise competitive pricing, superior product quality, prompt customer service, and timely delivery. They leverage their infrastructure and inventory to support urgent and complex client requirements, also offering third-party inspection and secure packaging
Specification of Stainless Steel 309 Instrumentation Tubes
| Specification | Details |
|---|---|
| Material Grade | Stainless Steel 309 / 309S |
| Standard Specifications | ASTM A213, ASTM A269, ASTM A312 |
| Type | Seamless / Welded / Bright Annealed |
| Outer Diameter (OD) | 1/8" to 2" (3.18 mm to 50.8 mm) |
| Wall Thickness | 0.5 mm to 3.0 mm (custom sizes available) |
| Length | Single Random, Double Random, or Custom Cut Lengths |
| Surface Finish | Bright Annealed, Polished, Pickled, or Descaled |
| Form | Straight Tubes / Coiled Tubing |
| Tolerances | As per ASTM / EN / DIN Standards |
| Temperature Range | Up to 1000°C (1832°F) |
| End Connections | Plain End, Beveled End, Threaded (as per requirement) |
| Applications | Instrumentation Systems, Control Lines, Chemical Processing, Power Plants, Oil & Gas, High-Temperature Furnaces |
| Manufacturing Method | Cold Drawn / Hot Finished |
| Certifications | EN 10204 3.1 / 3.2, NACE MR0175, ISO 9001 |
🏭 Industry & Application
- ✅ SS 309 Instrumentation Tubes for Medical Industry
- ✅ SS 309 Instrumentation Tubes for Chemical Processing
- ✅ SS 309 Tubes for Instrumentation Lines
- ✅ Stainless Steel 309 Instrumentation Tubes for Gas & Liquid Flow
- ✅ SS 309 Tubes for Heat Exchangers
❓ Frequently Asked Questions (FAQs)
Q1:What is Stainless Steel 309, and why is it used for instrumentation tubes?
Stainless Steel 309 is an austenitic chromium-nickel alloy known for its excellent resistance to oxidation and heat. It is used for instrumentation tubes because it performs well in high-temperature and corrosive environments, making it ideal for control and measurement systems in industries like oil & gas, chemical processing, and power plants.
Q2:What standards do SS 309 instrumentation tubes meet?
These tubes typically conform to international standards such as ASTM A213, ASTM A269, and ASTM A312, ensuring high-quality manufacturing, dimensional accuracy, and consistent performance.
Q3:What temperature range can SS 309 instrumentation tubes withstand?
SS 309 instrumentation tubes can withstand temperatures up to 1000°C (1832°F), making them suitable for high-temperature applications such as heat exchangers, furnaces, and boiler tubing.
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At Sumer Metal Industries Pvt. Ltd., we follow a zero-defect policy by implementing stringent quality checks, using certified raw materials, and continuously improving our processes to deliver reliable and consistent tubing solutions
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