RE: [MW:18448] Re: Interpass Temperature

Hi,maximum interpass temperature is measured at 25 mm away from edge of weld joint. It would be checked by tempil stick. The Maximum preheat temperature is equal to the maximum interpass temperature, but the minimum interpass temperature usualy is equal to the minimum preheat temperature and in some case it can be lower.
-----Original Message-----
From: Dindo
Sent: 12/08/2013, 17:21
To: materials-welding@googlegroups.com
Subject: Re: [MW:18408] Re: Interpass Temperature


does this mean that the minimum interpass temperature is lower than the
preheat temperature? If you are taking the interpass temperature at the
weld metal, it is safe to say that the temperature away from the weld
(50-75mm) would be lower.


On Mon, Aug 12, 2013 at 2:23 AM, Octane Mac <octane.mac@gmail.com> wrote:

> Adequately explained by Mr. Herman.
>
> Octane
>
>
> On Mon, Aug 12, 2013 at 7:46 AM, Ramesh Barot <rameshnbarot@yahoo.com>wrote:
>
>> Dear Sir,
>>
>> where we should measure it?????
>>
>> On the centre of weld pass, back side or near to heat affected zone???
>>
>>
>>
>> Thanks,
>> With Best Regards,
>> Ramesh Barot
>>
>> *From:* Octane Mac <octane.mac@gmail.com>
>> *To:* materials-welding@googlegroups.com
>> *Sent:* Sunday, August 11, 2013 4:54 PM
>> *Subject:* [MW:18388] Re: Interpass Temperature
>>
>> Siva,
>>
>> Interpass temperature is the maximum temperature above which you should
>> not be making a pass over another. For example, while welding stainless
>> steels, maximum interpass recommended is 150 C (300 F) which indicates that
>> after making a pass, you need to wait till the weld cools down at least to
>> 150 C (300 F) and then start making another weld pass over that.
>>
>> Octane.
>>
>> On Tuesday, August 6, 2013 7:32:19 AM UTC+3, Siva Sailam wrote:
>>
>> Dear sir,
>>
>> I know that inert pass temp are to be maintained on 1 layer and
>> subsequent layer, What i want to know is does inter pass temp are to be
>> maintained on root pass
>>
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