15-5PH, also known as UNS S15500, AMS 5862, DIN/EN 1.4545, and AMS 5659, is a precipitation-hardening stainless steel characterized by high strength, excellent toughness, and good corrosion resistance. It is widely used in demanding environments where mechanical properties and resistance to corrosion are critical.

This alloy is often employed in aerospace, automotive, and industrial applications due to its excellent performance characteristics.

15-5PH Sheet | Plate

15-5PH sheets and plates are available in a range of thicknesses and sizes, suitable for applications requiring high strength and good corrosion resistance, such as in aerospace and structural components.

15-5PH Round Bar | Rod

Round bars and rods in 15-5PH are available in various diameters and lengths, ideal for precision machining and manufacturing parts that need to withstand high stresses and maintain toughness.

15-5PH Strip | Coil

Offered in strips and coils, 15-5PH is used for applications that require strong, flexible materials, such as in high-stress springs and components.

15-5PH Applications

• Utilized for critical structural components and aerospace parts that require high strength and resistance to stress corrosion.

15-5PH Properties

• Tensile Strength: Exhibits high tensile strength, typically around 1,200 MPa, making it suitable for demanding applications.
• Density: Approximately 7.8 g/cm³, providing a favorable strength-to-weight ratio.
• Thermal Conductivity: ~17.8 W/m·K.
• Corrosion Resistance: Excellent resistance to oxidation and corrosion, particularly in environments with high humidity and corrosive chemicals.

Machining 15-5PH

• Cutting: Use high-speed steel or carbide tools for cutting. Precision cutting techniques such as laser or water jet cutting are recommended for detailed work.
• Drilling: Employ carbide drills for drilling 15-5PH. Proper cooling and lubrication are essential to prolong tool life and achieve accurate holes.
• Turning: Carbide inserts are preferred for turning. Maintain consistent cutting speeds and effective cooling to ensure optimal performance.
• Milling: Use carbide end mills with adequate cooling to manage heat and maintain precision during milling operations.
• Grinding: For grinding, use aluminum oxide or CBN wheels to achieve precise tolerances and a high-quality surface finish. Adequate cooling is necessary to prevent overheating and ensure dimensional accuracy.

Chemical Composition

• Chromium (Cr): Min 14.0%, Max 15.0%
• Manganese (Mn): Max 1.0%
• Phosphorus (P): Max 0.03%
• Silicon (Si): Max 1.0%
• Nickel (Ni): Min 3.5%, Max 5.5%
• Oxygen (O): Max 0.45%
• Carbon (C): Max 0.07%
• Iron (Fe): Balance