[MW:746] Re: 737] Re: how to find hydrogen concentration

it is from one of the ASM Handbook (i will give the exact volume# once
i come back to office in a couple of weeks), thou' i have never used
and no idea why this has to be calculated, but it is given in a
chapter in continuation with CE formulae

On Apr 24, 4:18 pm, "Tirumala B N Tagore" <tagore....@gmail.com>
wrote:
> Where from you take Rf?
> Is H for Hydrogen % or partial pressure?
> Finally how do you use Ph and in what relation?
> What are the reference books, standards in the above context.?
> Regards,
> tagore
>
> On Wed, Apr 23, 2008 at 8:50 AM, Bathula Raghuram (Mumbai - PIPING) <
>
> R.Bath...@ticb.com> wrote:
>
> > the formula is not appering in the message, hence resending as an
> > attachment.
>
> > -----Original Message-----
> > From: materials-welding@googlegroups.com on behalf of Raghuram Bathula
> > Sent: Wed 23/04/2008 20:51
> > To: materials-welding@googlegroups.com
> > Subject: [MW:737] Re: how to find hydrogen concentration
>
> > May i know why you need this calculation? if possible please detaile it for
> > the benifit of all members. probably the following would help you!
>
> > This formula is used for detecting cracking susceptibility of steels and is
> > valid only for certain range of steels
>
> > Where *P*H is the cracking susceptibility parameter, H is the concentration
> > of hydrogen (in parts per million), *R*f is the restraint stress (in
> > megapascals), and:
>
> > Good luck!
>
> > On Wed, Apr 23, 2008 at 3:28 PM, mech <arunmech...@gmail.com> wrote:
>
> > > is there any mathematical formula to find optimum level of hydrogen
> > > concentration in steels
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