Sumer Metal Industries Private Limited is a leading manufacturer, supplier, and exporter of Duplex Steel S32205 Needle Tubes. The company has established a strong global presence, exporting to countries such as Oman, Qatar, Saudi Arabia, the UAE, Kuwait, Spain, Germany, the USA, Canada, and several regions across Africa. Known for its high-quality products, Sumer Metal Industries ensures all needle tubes meet international standards and customer specifications.
Duplex Steel S32205, also known as UNS S32205 or 2205 duplex stainless steel, features a unique two-phase microstructure consisting of roughly equal proportions of austenite and ferrite. This composition provides a perfect balance of strength, toughness, and corrosion resistance, making it ideal for demanding industrial applications where conventional stainless steels might fail.
S32205 needle tubes are extensively used in industries such as chemical processing, petrochemical, oil and gas, marine, desalination plants, and heat exchangers. Their high resistance to pitting, crevice corrosion, and stress corrosion cracking makes them suitable for both high-pressure and high-temperature applications, ensuring longevity and reliable performance.
The Duplex Steel S32205 needle tubes offer excellent mechanical properties. They have a tensile strength of ≥620 MPa, yield strength of ≥450 MPa, elongation of ≥25%, and hardness of ≤290 HB. This combination of high strength and ductility makes them suitable for structural and pressure-bearing applications, where durability and reliability are critical.
| Specification | Details |
|---|---|
| Standard | ASTM A789 / ASME SA789 |
| Type | Seamless / Welded |
| Size Range | 1/2" NB to 12" NB |
| Schedule | SCH20, SCH30, SCH40, STD, SCH80 |
| Form | Round, Hydraulic, Square, Rectangular |
| Length | Single Random, Double Random, Cut Length |
| Ends | Plain End, Beveled End, Threaded |
S32205 contains 21–23% chromium, 4.5–6.5% nickel, 2.5–3.5% molybdenum, and 0.08–0.20% nitrogen, with low carbon content (≤0.03%). This chemical composition provides outstanding corrosion resistance against chlorides, acids, and seawater, surpassing standard austenitic stainless steels such as 316L.
| Element | % by Weight |
|---|---|
| Carbon (C) | ≤ 0.03 |
| Manganese (Mn) | 2.00 – 2.50 |
| Silicon (Si) | 1.00 – 1.50 |
| Phosphorus (P) | ≤ 0.035 |
| Sulfur (S) | ≤ 0.020 |
| Chromium (Cr) | 21.00 – 23.00 |
| Nickel (Ni) | 4.50 – 6.50 |
| Molybdenum (Mo) | 2.50 – 3.50 |
| Nitrogen (N) | 0.08 – 0.20 |
| Iron (Fe) | Balance |
With a proven track record as a Duplex Steel S32205 Needle 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 | Details |
|---|---|
| Standard | ASTM A789 / ASME SA789 |
| Type | Seamless / Welded |
| Size Range | 1/2" NB to 12" NB |
| Schedule | SCH20, SCH30, SCH40, STD, SCH80 |
| Form | Round, Hydraulic, Square, Rectangular |
| Length | Single Random, Double Random, Cut Length |
| Ends | Plain End, Beveled End, Threaded |
Duplex Steel S32205 needle tubes are widely used in chemical processing, petrochemical, oil and gas, marine, desalination plants, and heat exchanger industries due to their high corrosion resistance and mechanical strength.
Compared to conventional austenitic stainless steels like 304 or 316, Duplex Steel S32205 offers higher tensile strength and superior resistance to stress corrosion cracking, making it ideal for high-pressure and harsh environment applications.
The key advantages include exceptional corrosion resistance (especially to chlorides), high mechanical strength, resistance to pitting and crevice corrosion, cost-effectiveness, and suitability for high-pressure and high-temperature applications.
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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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