17-4PH

Overview

17-4 PH stainless steel is a precipitation-hardening martensitic alloy renowned for its 17% chromium and 4% nickel composition, alongside other elements like copper and niobium. This alloy offers a unique blend of high strength, hardness, and toughness, coupled with good corrosion resistance in various environments. Its heat-treatable nature allows for the adjustment of mechanical properties through aging processes, enabling tailored strength levels. Despite its machinability in the annealed state, post-heat treatment machining becomes more challenging due to increased hardness. Welding is feasible, although it may necessitate subsequent heat treatment.

Powder compatibility

ASTM A564 / 1.4548 / X5CrNiCuNb16-4

Brief introduction

17-4 PH stainless steel finds extensive application across diverse industries due to its superior mechanical properties and corrosion resistance. It is commonly employed in aerospace components, chemical processing equipment, and certain medical devices where a combination of high strength, toughness, and corrosion resistance is crucial. Its versatility also extends to uses in valve components, pump shafts, and other high-stress applications where its specific properties are highly advantageous.

Powder characteristics

Chemical composition

Mechanical properties

The test samples were printed in the EP-M300 & EP-M650 with the 50µm process.

DIN EN ISO 6892-1: 2020-06: A224

DIN 50125:2022-08: B6x30

Heat treatment

The heat treatment process for 17-4 PH stainless steel involves initial solution treatment, heating the material to 1010-1065°C (1850-1950°F) to dissolve its alloying elements, followed by rapid quenching to form a martensitic microstructure. Subsequent aging or precipitation hardening occurs at a lower temperature, typically around 480-620°C (900- 1150°F), for a specific duration, which allows the precipitation of fine particles within the material, enhancing its strength and hardness.

Disclaimer

Recommendations are for guidance only and the suitability of the material for any application can only be confirmed upon getting to know the actual service conditions. Continuous development may cause changes in technical data without any prior notice. The current datasheet is only valid for EPlus3D materials.
All test data has been created with a well-maintained machine with well-maintained powder if machine is operated incorrectly or the feed material is not maintained performance of the material may not be seen.
Alterations to the parameter sets after they have been provided to the customer may also affect the overall performance of the material.
All tensile testing carried out to (DIN EN ISO 6892-1: 2020-06: A224, DIN 50125:2022-08: B6x30). Orientation Z defined as vertical perpendicular to the build plate. XY orientation defined as Parallel to the plate in the X or Y direction of the top view of the plate.
All Hardness measurements carried out to standard (Vickers ISO 6507).