Introduction
UNS S15500 also called 15-5PH,this is a Martensitic precipitation-hardening stainless steel (nickel-chromium-Copper alloy) with high strength, high hardness and excellent corrosion resistance, very good lateral flexibility and ductility, and high forgeability. The processing performance of 15-5PH is similar to other precipitation hardening stainless steel, and low temperature heat treatment can achieve aging hardening.
Chemical composition (%)
Composition  | C  | Si  | Mn  | Cr  | Ni  | Cu  | P  | S  | Nb  | 
Min  | \  | \  | \  | 14.0  | 3.5  | 2.5  | \  | \  | 0.15  | 
Max  | 0.07  | 1.0  | 1.0  | 15.5  | 5.5  | 4.5  | 0.04  | 0.03  | 0.45  | 
Mechanical property
Hardness  | Tensile strength  | Yeild strength  | Elongation  | 
≤200  | ≥1035MPa  | ≥930MPa  | ≥12%  | 
Physical performance
Density  | melting point  | J/Kg.k  | Magnetic  | Thermal conductivity  | CLTE  | 
7.78g/cm3  | 1400-14407℃  | 502J/(Kg.℃)  | yes  | 17.9~22.6W/(m·K)(149~482℃)  | 10.8~11.34×10⁻⁶/K(21~427℃)  | 
Available Products and Specifications:
15-5PH nickel-chromium-Copper alloy designations is 1.4545, the production standard AMS 5659/ AMS 5862, the products is available as sheet, strip, plate, round bar, forging stock, wire, tube and extruded section.
Common trade Name :
l PH15-5
l XM-12
l UNS S15500
l 15Cr-5Ni
l DIN X4CrNiCuNb164
l X5CrNiCu15-5
l DIN 1.4540
l DIN 1.4545
Advantage:
15-5PH nickel-chromium-Copper alloy have Excellent corrosion resistance ,Good processing performance ,Good plasticity and weldability ,High temperature resistance.which widely used in many industry.
Application :
(1) Aerospace: 15-5PH alloy is widely used in the aerospace field to manufacture aircraft structural components, engine parts, satellite components, etc.
(2) Medical devices: 15-5PH often used in the manufacture of medical devices, such as surgical tools, orthopedic implants, artificial joints, etc.
(3) Marine engineering: Manufacture marine engineering equipment and marine platform parts, such as submarine pipelines, marine platform connectors, etc.
(4) High-performance machinery: 15-5P can be used for high-performance automotive engine parts, sports equipment, precision instruments, etc. Its high strength, hardness and wear resistance enable it to withstand high loads and high-speed movement environments.
(5) Oil and gas industry: manufacture corrosion-resistant pipes, valves, pump bodies and other equipment to cope with harsh working environments and corrosive media.
(6) Nuclear industry: 15-5PH alloy is also used in produce nuclear reactor parts, nuclear power plant equipment, etc.
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