Metal Expansion Joint

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Keyser Metal Expansion Joints Applications For Axial Movement Material Evaluation For Hydro-Forming Process Types of Expansion Joints available Pressure Balanced Expansion Joints Dual-flex And Universal Series Model PBEU Analysis i) Universal LPG Expansion Bellow ii) Sleeve Type Expansion Joint

Material Evaluation For Hydro-Forming Process

Keyser Technologies Pte Ltd developed the Hydro-forming process for the manufacturing of steam bellow components and has engaged SIMTech to evaluate the materials that could be used in this process. The materials that have been studied are stainless steel type 321, 316L and SUS304. The study aims to determine the flow stress data of these materials and to examine whether the influence of material direction is significant. Please note that while the test was conducted on 3 different stainless steel types, this report only includes the logarithmic plot of stress-strain data and tensile strength results of stainless steel type 316L (612663 0.6mm). Please contact Keyser Technologies for more detailed test results.

There are two main objectives in this study:
1) To determine the flow stress curves of the materials used for hydro-forming process from tensile testing.
2) To evaluate whether there is any significant influence of material direction on material properties.

Methodology
The materials evaluated for hydro-forming process are stainless steel Type 316L. Below is a summary
of the materials used in this study and their chemical composition.

Stainless Steel Type 321


Stainless Steel Type 316L


Stainless Steel SUS304

Tensile Test »