Bending Strength of PEEK (Polyetheretherketone)

PEEK (Polyetheretherketone) is a high-performance thermoplastic renowned for its exceptional mechanical properties, making it a preferred material in various demanding applications. This article provides an overview of the bending strength of PEEK, including values for different formulations.

General Bending Strength

For unreinforced PEEK, the bending strength is typically measured at approximately 163 MPa at 23°C, according to ISO 178 testing standards. This value establishes a baseline for the material's performance in structural applications.

Bending Strength of Reinforced Grades

The mechanical properties of PEEK can be significantly enhanced through reinforcement. The following are typical bending strength values for various reinforced grades:

ARKPEEK-GF30: 30% Glass-Filled PEEK:

Exhibits a bending strength of approximately 212 MPa. The addition of glass fibers improves rigidity and overall mechanical performance.

ARKPEEK-CF30: 30% Carbon Fiber-Reinforced PEEK:

Demonstrates remarkable strength, with bending strength reaching up to 298 MPa. This formulation is particularly advantageous for applications requiring superior mechanical properties and lightweight solutions.

ARKPEEK-MOD: Modified PEEK Compositions (With 10% Carbon Fiber + 10% PTFE +10%  Graphite):

Show a bending strength of about 186 MPa, combining enhanced wear resistance with improved mechanical performance.

PEEK's outstanding bending strength, especially in reinforced formulations, makes it an ideal material for high-performance applications across various industries, including aerospace, automotive, and medical devices. Understanding the mechanical properties of different PEEK grades allows engineers and designers to select the most appropriate material for their specific needs.