Urgent: Mechanical Properties at High Temp for 9Cr Steel

[mri44]

Urgent! Mechanical Properties at high temperature

At first, My cordial respect to all members.

I need help regarding my research study.
I read a paper by Yaguchi, M., T. Ogata, and T. Sakai, Creep strength of high chromium steels welded parts under multiaxial stress conditions. International Journal of Pressure Vessels and Piping, 2010. 87(6): p. 357-364.

From this paper, i selected a specimen. Now i need some mechanical properties.
Specimen: Welded 9 Cr steel Tube (9Cr-1Mo-V-Nb)
Parent material: P91 steel
Weld material: TGS-9Cb

I need the Mechanical tensile properties (At 650 C) for both P91 (Base Metal) and TGS-9cb( Weld Metal).

The properties are,

At 650 C

Poison’s ratio, ν = ?
Yeild Strength, σy (MPa) = ?
Yeild Strain, εy = ?
Ultimate tensile strength, σUTS (MPa) = ?
Ultimate tensile Strain, εUTS = ?

Without these properties, i can not go ahead with my research study. I have no other way but to ask you for help.

Any kinds of help would appreciated.

May God Bless you all.

Waiting for your valuable advice.

 

[cloa513]

What good would finding the properties of the weld metal do you its going to be changed as soon as you weld it- depending on an enormous number of factors- including dilution, current, weld cleanliness...

 

[cloa513]

http://www.scielo.org.ar/pdf/laar/v32n3/v32n3a03.pdf

 

[cloa513]

http://www.eng-tips.com/viewthread.cfm?qid=181632&page=106
Please don't post there- its against forum rules

 

[alphy]

Dear researcher,

Thank you for reaching out for assistance with your research study. The paper you referenced by Yaguchi et al. is a valuable resource for understanding the creep strength of high chromium steels under multiaxial stress conditions. However, it is important to note that the mechanical properties of a material can vary based on factors such as composition, microstructure, and processing methods. Therefore, it is not appropriate to directly apply the values from the paper to your specific specimen.

To obtain the mechanical properties for your welded 9Cr steel tube, it is necessary to conduct experiments or simulations on your specific material. This will involve subjecting the specimen to high temperatures and measuring its response to mechanical forces. The properties you are requesting, such as yield strength and ultimate tensile strength, are critical for understanding the behavior of your material at high temperatures.

I suggest consulting with a materials testing laboratory or a mechanical engineering expert to conduct these experiments and provide you with the necessary data. It is also important to consider the standard testing methods and protocols for obtaining accurate and reliable results.

I wish you all the best in your research study and hope you are able to obtain the necessary mechanical properties for your welded 9Cr steel tube. Good luck!