Re: [MW:32149] Stabilization heat treatment

Hope this SS TYP347 piping job .

 Stabilisation HT shall be as per below HT cycle 

Method of Heat treatment - HT using Electric Resistance Pads  suitable to achieve temperature of 1000  Deg C 

Loading at or below - 200 Deg C 

Rate of Heating - 200  Deg C / hr 

Holding temperature - 920 +/- 10  Deg C 

  Holding time - 125 minutes 

  Rate of Cooling  - Remov Electric Resistance Pads  after holding period is over  - Forced Air cooling - Use  Dry Air Blast   

  Unloading at or below - Room temperature

Note - The job shall be supported suitably to avoid distortion of PIping spools .

attach thermocouple as per Pipe diameter .

On Fri, Apr 2, 2021 at 7:59 AM K.M Hrishikesan <hrishikm07@gmail.com> wrote:

Yes.. It  is

On Fri, Apr 2, 2021, 04:27 Vishwas Keskar <vvkeskar123@gmail.com> wrote:

Is this Stabilisation is for  Pipe to Pipe butt joint ?

On Fri, 2 Apr 2021, 07:14 K.M Hrishikesan, <hrishikm07@gmail.com> wrote:

Hi..Need a small help.

Does  anybody have an established WPS for stabilization heat treatment?

MOC:

 ASTM A 358 TP 347

Specimen thickness is 25 mm.

Thanks.

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