1.What material is 1.4462 equivalent to?
1.4462 is a duplex stainless - steel specified by German standards. Its equivalent materials include 022Cr22Ni5Mo3N in Chinese standards, S31803 in American standards, and SUS329J3L in Japanese standards. It is also equivalent to UNS S32205, ASTM F51, and AFNOR Z2CND22.05.03, etc.
2.Is 1.4462 magnetic?
1.4462 is magnetic. As an austenitic - ferritic duplex stainless steel, it combines the characteristics of ferrite and austenite, and the ferrite phase makes it magnetic.
3.What is the density of 1.4462 steel?
The density of 1.4462 steel is approximately 7.80 g/cm³.
4.What is the difference between 1.4462 and 1.4571 material?
Chemical composition
1.4462 mainly contains 21 - 23% chromium, 4.5 - 6.5% nickel, 2.5 - 3.5% molybdenum, etc. 1.4571 (X6CrNiMoTi17 - 12 - 2) contains about 17% chromium, 12% nickel, and is added with titanium element, which can improve the stability of the material.
Corrosion resistance: 1.4462 has excellent corrosion resistance, especially outstanding resistance to chloride - ion stress corrosion, and can be used in harsh environments such as seawater, petrochemical industry, and offshore oil fields. 1.4571 also has good corrosion resistance, and the addition of titanium makes it have better inter - granular corrosion resistance, but its overall corrosion resistance is slightly inferior to 1.4462, and it is mainly used in buildings with medium - level chloride and sulfur dioxide pollution and some general chemical equipment.
Mechanical properties: 1.4462 is a duplex stainless steel with high strength, and its yield strength is about twice that of austenitic stainless steel, with a Brinell hardness of about 240. The mechanical properties of 1.4571 are relatively lower, with a yield strength in the range of 230 - 570 MPa and a Brinell hardness of 190 - 270.
Application fields: 1.4462 is widely used in petrochemical, oil and gas, marine engineering, pressure vessels, 污水处理,and other fields, and is suitable for occasions requiring high strength and high corrosion resistance. 1.4571 is mainly used in chemical instrument engineering, waste gas treatment, wastewater treatment, and some building fields, and is more used in some occasions with relatively low requirements for strength and corrosion resistance.
5.Comparison of 1.4462 and other popular nickel-based alloy grades
| Property / Grade | 1.4462 (Duplex 2205) | Incoloy 800H (N08810) | Hastelloy C276 | Monel 400 (N04400) | GH3030 (Ni-Cr) |
|---|---|---|---|---|---|
| Alloy Type | Duplex Stainless Steel (Austenitic-Ferritic) | Nickel-Iron-Chromium Alloy | Nickel-Molybdenum-Chromium-Tungsten Alloy | Nickel-Copper Alloy | Nickel-Chromium Solid Solution Strengthened Alloy |
| Main Composition | 22Cr-5Ni-3Mo-N | 32Ni-20Cr-Fe-Ti-Al | 57Ni-16Mo-15Cr-4W | 67Ni-30Cu | 75Ni-20Cr-Ti |
| Core Advantages | High strength + pitting resistance + cost-effective | Excellent high-temperature creep strength | The all-around corrosion-resistant champion (extreme acidic conditions) | Outstanding seawater and hydrofluoric acid resistance | Good thermal strength and processability |
| Temperature Limit | ~300°C (prone to embrittlement at higher temps) | ~800°C - 950°C | ~400°C (corrosion-focused) | ~450°C (corrosion-focused) | ~800°C |
| Corrosion Resistance Level | Excellent (resists chloride stress corrosion cracking) | Good (oxidation and carburization resistance) | Very High (resists strong oxidizing/reducing acids) | Excellent (resists saltwater, alkalis, hydrofluoric acid) | Good (resists atmospheric oxidation) |
| Typical Applications | Oil & gas pipelines, chemical tankers, desalination | Heat treatment furnace tubes, petrochemical heat exchangers | Environmental desulfurization, pharmaceuticals, acidic gas wells | Marine propeller shafts, chemical pumps and valves | Aero-engine components, high-temperature furnace linings |
