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17-4PH Alloy Is A Stainless Steel With High Strength And Excellent Corrosion Resistance.
17-4PH Alloy
17-4PH Alloy, also known as Type 17-4 PH, is a high-strength stainless steel that combines excellent corrosion resistance with good mechanical properties. The alloy is commonly used in aerospace, marine, and industrial applications where strength and durability are essential. It achieves its high strength through precipitation hardening, a heat treatment process that enhances its performance characteristics. The alloy’s resistance to corrosion makes it suitable for various environments, including harsh and marine conditions.
Composition:
Element
Percentage
Chromium
15-17%
Nickel
3-5%
Copper
3-5%
Carbon
0.07% max
Manganese
1% max
Silicon
1% max
Other Elements
Trace amounts of other elements
Key Properties:
Density: 7.8 g/cm³
Yield Strength: 860 MPa (heat-treated)
Tensile Strength: 1030 MPa
Elongation: 10%
Hardness: 37-40 HRC (heat-treated)
Corrosion Resistance: Excellent in various environments, including marine and chemical environments
Application: Aerospace components, marine hardware, industrial equipment, and high-stress applications
17-4PH Alloy is favored for its combination of high strength, excellent corrosion resistance, and versatile applications, making it suitable for demanding engineering tasks.