High-Strength, Corrosion-Resistant

Stainless Steel 17-4 PH

Stainless Steel 17-4 PH (precipitation-hardened) is a versatile and widely used martensitic stainless steel alloy known for its high strength, excellent corrosion resistance, and good mechanical properties.

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High-Strength, Corrosion-Resistant Alloy for Precision Applications

Stainless Steel 17-4 PH (precipitation-hardened) is a versatile and widely used martensitic stainless steel alloy known for its high strength, excellent corrosion resistance, and good mechanical properties. This alloy is composed of 17% chromium, 4% nickel, and is further strengthened by the addition of copper, which allows it to undergo precipitation hardening. The combination of these elements makes 17-4 PH ideal for applications that require both durability and resistance to harsh environments, particularly in the aerospace, chemical processing, and energy sectors.

Key Properties

High Strength and Hardness: 17-4 PH offers superior mechanical strength and hardness, which can be further enhanced through heat treatment, making it suitable for high-stress applications.
Corrosion Resistance: The alloy’s excellent corrosion resistance, particularly in marine environments and chemical processing applications, extends the lifespan of components exposed to harsh conditions.
Good Mechanical Properties: 17-4 PH maintains good toughness and ductility, allowing it to perform reliably under a wide range of conditions, including both low and high temperatures.
Versatility in Heat Treatment: This alloy can be heat treated to various conditions (H900 to H1150), providing flexibility in achieving the desired combination of strength, hardness, and toughness.

TENSILE STRENGTH		YIELD STRENGTH		ELONGATION
As Printed	With Heat Treatment	As Printed	With Heat Treatment	As Printed	With Heat Treatment
120 ksi	160 ksi	83 ksi	150 ksi	15%	20%

Machine Spotlight

3D Systems ProX 320

ADDMAN utilizes the 3D Systems ProX 320 to produce metal parts with exceptional precision and efficiency. This machine offers a robust build volume and a powerful 500-watt laser, enabling the creation of complex parts with outstanding accuracy and consistent quality. The ProX 320’s advanced capabilities and versatile material compatibility make it the ideal choice for delivering high-performance components across a wide range of demanding industrial applications.

Manufacturing and Processing

Stainless Steel 17-4 PH is available in various forms, including bars, plates, and sheets, and can be processed through machining, welding, and forging. The alloy’s properties can be tailored to specific applications through precise heat treatment, allowing manufacturers to achieve the desired balance of strength and toughness.

Applications

Aerospace: 17-4 PH is widely used in aerospace components such as turbine blades, fasteners, and structural parts that require high strength and resistance to corrosion.
Chemical Processing: The alloy’s ability to withstand corrosive chemicals and maintain integrity under high pressure makes it ideal for use in valves, pumps, and fittings in chemical plants.
Marine: Due to its excellent corrosion resistance, 17-4 PH is commonly used in marine applications, including propeller shafts, pump components, and offshore platforms.
Medical Devices: The alloy’s biocompatibility and mechanical properties make it suitable for medical instruments and surgical tools that require precision and durability.
Energy Sector: 17-4 PH is employed in the energy sector for components such as gas turbine parts, nuclear reactor components, and oil and gas equipment, where high strength and corrosion resistance are essential.

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