Urgent: Mechanical Properties at High Temp for 9Cr Steel

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Discussion Overview

The discussion centers around the mechanical properties of welded 9Cr steel at high temperatures, specifically at 650°C. The inquiry is related to a research study involving the tensile properties of both the parent material (P91 steel) and the weld material (TGS-9Cb).

Discussion Character

  • Technical explanation
  • Homework-related

Main Points Raised

  • The original poster requests specific mechanical properties, including Poisson's ratio, yield strength, yield strain, ultimate tensile strength, and ultimate tensile strain for both P91 and TGS-9Cb at 650°C.
  • One participant questions the relevance of obtaining the properties of the weld metal, suggesting that they may change due to various factors such as dilution and welding conditions.
  • Links to external resources are provided, although one participant cautions against posting in a specific external forum due to forum rules.

Areas of Agreement / Disagreement

Participants do not appear to reach a consensus on the necessity of the weld metal properties, with at least one participant expressing skepticism about their relevance.

Contextual Notes

The discussion does not clarify the assumptions or conditions under which the requested properties are needed, nor does it address the specific factors that might influence the mechanical properties of the weld metal.

mri44
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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.
 
Engineering news on Phys.org


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...
 

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