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Duplex Steel Pipesare crafted from duplex stainless steel, a distinctive material that blends austenitic and ferritic microstructures. This pairing gives these pipes exceptional strength and corrosion resistance, making them ideal for the demanding conditions encountered in chemical processing, oil and gas, and marine engineering sectors. Celebrated for their longevity, high tensile strength, and capacity to resist pitting and crevice corrosion, duplex steel pipes serve as a reliable choice for critical applications exposed to severe conditions.
| MATERIAL | COMPOSITION % (APPROX) | ||||||
|---|---|---|---|---|---|---|---|
| Cr | Ni | Mo | N | Mn | W | Cu | |
| 2101 LDX | 21.5 | 1.5 | 0.3 | 0.22 | 5 | – | – |
| DX2202 | 23 | 2.5 | 0.3 | 0.2 | 1.5 | – | – |
| RDN 903 | 20 | 1.8 | 0.2 | 0.11 | 4.2 | – | – |
| 2304 | 23 | 4.8 | 0.3 | 0.10 | – | – | – |
| 2205 | 22 | 5.7 | 3.1 | 0.17 | – | – | – |
| 2507 | 25 | 7 | 4 | 0.27 | – | – | – |
| Zeron 100 | 25 | 7 | 3.2 | 0.25 | – | 0.7 | 0.7 |
| Ferrinox 255/ Uranus 2507Cu | 25 | 6.5 | 3.5 | 0.25 | – | – | 1.5 |
| Mechanical properties | Tensile,min,ksi[MPa] | Yield,min,ksi[MPa] | Elongation,%(min) | Hardness,HB(max) |
| S31803 | 90 [620] | 65 [450] | 25 | 290 |
| S32205 | 95 [655] | 65 [450] | 25 | 290 |
| S32750 | 116 [800] | 80 [550] | 15 | 300 |
| S32760 | 109 [750] | 80 [550] | 25 | 300 |
At Koasteel, we take pride in being the largest supplier and manufacturer in the New Zealand, delivering advanced solutions for every one of your piping requirements. With cutting-edge production facilities strategically situated in the New Zealand, we maintain an extensive stock of more than 25,000 tons of top-quality materials kept readily on hand.
Reach out to us for a fast quote tailored to your requirement.
We supply These Duplex Steel Pipe conforming to DIN, ISO, JIS or ANSI Standard.
Duplex Steel Pipes have applications as varied as the industries they serve, driven mainly by the aerospace, railway, construction and automotive industries, along with petrochemical, nuclear, medical, Oil & Gas, Chemical, Pharmaceutical, Food & Beverage, Nuclear, Thermal Power plants, Paper and Pulp, marine and mining, etc.
Yes, duplex steel pipes can be recycled. They hold valuable raw materials such as iron, nickel, and chromium, which can be recovered and reused to manufacture new steel products, supporting sustainability and cutting down on waste.
Duplex steel pipes are corrosion-resistant pipes fabricated from duplex stainless steel, a material recognized for its blend of austenitic and ferritic microstructures.
Duplex steel pipes find extensive application across sectors including chemical processing, oil and gas, marine engineering, construction, aerospace, automotive, and food processing.
Yes, duplex steel pipes are weldable with conventional welding methods. That said, particular attention may be needed to guarantee high-quality welds and reduce the chance of defects or failures.
Mail: sales@koasteel.nz
