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What is ASTM A789 UNS S32205 ?
S32205 nickel alloy, also known as duplex stainless steel, is a high-performance material capable of withstanding a wide range of harsh chemical and mechanical environments with excellent corrosion and wear resistance. This alloy also offers high strength, high rigidity and good welding properties, making it widely used in offshore engineering, chemical, oil and gas extraction and other fields.
The chemical composition of alloy S32205 is iron, chromium, nickel and molybdenum, which is higher than that of conventional stainless steels. The special structure of this material gives it the unique property of a duplex stainless steel, which has equal austenite and ferrite compositions at room temperature. This organization provides excellent corrosion resistance and high strength. The alloy also has a relatively low coefficient of thermal expansion, giving it excellent stability in high temperature environments.
The excellent properties of S32205 alloy are due to its advanced production process, which includes high-quality chemical element ratios and advanced manufacturing techniques for seamless tubes. This special production process ensures the purity and toughness of the material and provides it with continuously optimized physical and mechanical properties.
Overall, S32205 nickel alloy demonstrates excellent performance and stability in a variety of harsh environments. This high-performance material has a wide range of applications to help better meet the growing number of engineering challenges. As a result, S32205 alloy will play an increasingly important role in the future in fields such as offshore engineering, chemicals, and oil and gas extraction.
ASTM A789 UNS S32205 Equivalent Material Grade
| STANDARD | WERKSTOFF NR. | UNS |
|---|---|---|
| Alloy 2205 Pipe | 1.4462 / 1.4462 | S31803 / S32205 |
Mechanical Properties of ASTM A789 UNS S32205
| Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
| 7.8 g/cm3 | 1350 °C (2460 °F) | Psi - 80000 , MPa - 550 | Psi - 116000 , MPa - 800 | 15 % |
Chemical Composition of ASTM A789 UNS S32205
| C | N | P | Si | Mn | Mo | Fe | Cr | S | Ni |
| 1.0 | 0.03 | 0.02 | 2.0 | 3.0 - 3.5 | 22.0 - 23.0 | 0.03 | 4.5 - 6.5 | 0.14 - 0.2 | Bal |
Physical Properties of ASTM A789 UNS S32205
| Alloy | UNS | Spec. | Density kg/dm³ | Modulus of Elasticity (x106 psi) | Mean Coefficient of Thermal Expansion (IN./IN./°F x 10-6) | Thermal Conductivity (BTU-in/ ft2-h-°F) |
| Duplex 2205 | S32205 | A789, A790 | 7.8 | 27.5 | 7.6 | 180 |
| Duplex S31803 | S31803 | A789, A790 | 7.8 | 27.5 | 7.6 | 180 |
Application
