Introduction Custom 465 is a high-strength martensitic stainless steel that was developed for use in aerospace, medical, and industrial applications. This alloy has gained popularity due to its high tensile strength, corrosion resistance, and excellent mechanical properties. In this article, we will dive deeper into this material, exploring its composition, fabrication methods, properties, and applications.
Composition Custom 465 is a precipitation-hardening stainless steel that contains chromium, nickel, molybdenum, titanium, and columbium. Its chemical composition allows it to be heat-treated to achieve a combination of high strength, ductility, and toughness. The table below provides the detailed chemical composition of Custom 465.
| Element | Composition (%) |
|---|---|
| Carbon | 0.05 max |
| Manganese | 0.50 max |
| Phosphorus | 0.015 max |
| Sulfur | 0.010 max |
| Silicon | 0.50 max |
| Chromium | 11.00 – 12.50 |
| Nickel | 10.50 – 11.75 |
| Molybdenum | 0.50 – 1.00 |
| Columbium | 0.50 max |
| Titanium | 1.80 – 2.20 |
| Iron | Remaining |
Fabrication Methods Custom 465 can be fabricated using various methods such as forging, rolling, extrusion, and machining. Due to its high strength and hardness, however, machining can be challenging. Therefore, it is recommended to use carbide tools that are coated with titanium nitride or aluminum oxide. Additionally, Custom 465 can be welded using gas tungsten arc welding (GTAW) or electron beam welding (EBW). However, the heat affected zone (HAZ) should be minimized to prevent a reduction in strength.
Properties Custom 465 has excellent mechanical properties that make it suitable for high-performance applications. Some of its key properties include the following:
- High Strength: Custom 465 has a yield strength of up to 175 ksi and an ultimate tensile strength of up to 250 ksi.
- Corrosion Resistance: Custom 465 has good resistance to corrosion, especially in chloride-containing environments.
- Toughness: Custom 465 has high toughness, which allows it to withstand impact loading and deformation without fracturing.
- Fatigue Resistance: Custom 465 has good fatigue resistance, which enables it to withstand cyclic loading without failure.
- Wear Resistance: Custom 465 has good wear resistance due to its high hardness and strength.
Applications Custom 465 is widely used in various industries due to its exceptional properties. Some of its common applications include the following:
- Aerospace: Custom 465 is used in the manufacture of landing gear components, fasteners, springs, and helicopter rotor shafts.
- Medical: Custom 465 is used in the production of surgical instruments, orthopedic implants, and dental tools.
- Industrial: Custom 465 is used in the production of valves, pumps, gears, and shafts, among other parts that require high strength and corrosion resistance.
Conclusion Custom 465 is a high-strength martensitic stainless steel that offers excellent mechanical properties, corrosion resistance, and wear resistance. Its composition allows it to be heat-treated to achieve a combination of high strength, ductility, and toughness. This alloy is widely used in aerospace, medical, and industrial applications, where high performance and reliability are critical.
Post time: May-20-2023
