Re: Young's Modulus / Steel / Abnormal values

From: Michael Dahms (michael.dahms_at_gkss.de)
Date: 01/21/05 

Date: Fri, 21 Jan 2005 12:15:35 +0100

Michel PIETTE wrote:
>
> Our laboratory makes tensile testing on steels. We often observe Young's
> Modulus (initial slope of the tensile curve) very different of the expected
> value of 207 GPa (we observe 140 GPa to 230 GPa) on Carbon Steel materials
> in different metallurgical states (Q, QT, N, ...).

Young's modulus of polycrystalline materials depends on crystallographic
texture. 207 GPa is just a typical value for bcc iron.

Michael Dahms

f'up2 sci.materials

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