从1960就开始用不锈钢做航空空间器；因为重返大气层温度很高，铝合金不行；米格25也是用不锈钢；是特别的航空器不锈钢

• Grade 316/316L Stainless Steel: Known for its excellent corrosion resistance and strength at high temperatures, this grade is often used in aerospace structures and engine parts.
• 17-4 PH Stainless Steel: This precipitation-hardening stainless steel is known for its excellent mechanical properties and is commonly used in aerospace applications such as structural components and fasteners.
• A-286 Stainless Steel: This iron-based superalloy is often used in jet engine components due to its excellent high-temperature strength and corrosion resistance.
• 15-5 PH Stainless Steel: 15-5 PH is a precipitation-hardening stainless steel that offers a combination of high strength and good corrosion resistance. It is often used in aerospace for parts that require high strength-to-weight ratios, such as landing gear components.