Re: [MW:32175] Most important to be verified or checked before starting weld Cladding Material

Some of the common things in all specifications and standards as below.

1. 625 or 825 weld overlay performed using Inconel 625 weld consumable.

2. While overlaying Nickel alloys over carbon or low alloy steel substrate important is Cleanliness. This can be achieved via warming with preheat torch on the ovelaying surface and wire brushing.

3. Cleaning with Acetone or any solvent may be required.

4. Depending on the substrate material either carbon content or/& Thickness may be used as a Factor for deciding preheat especially during first layer depending on the P-No of the material.

5. Care may be exercised while overlay 625 first layer to minimise dilution by control of heat input or travel speed to keep the iron content within 5% to reduce the risk of cracking due to Niobium present in the 625

6. Meeting the overlay 625 chemistry requirements at the specified height from the fusion line and hence decide the Thickness.

Thanks & Regards

J.Gerald Jayakumar

On Tuesday, 6 April, 2021, 06:05:26 pm IST, K U Masood Ahmad <ku.masood@gmail.com> wrote:

please mention any international standard not ARAMCO!!!!!

On Tue, 6 Apr 2021 at 15:21, Tamil <thamizharasan2k@gmail.com> wrote:

refer 02-SAMSS-012 & 01-SAMSS-044

On Tue, Apr 6, 2021 at 11:27 AM PK M <pkmqaqc@gmail.com> wrote:

Dear Experts,

What is the most important to be verified or checked before starting weld Cladding Material ?

Specifically for the clad materials- 625,825.

Any precautionary step to be taken before start the welding,

Any Special Advisable.

Thanks in Advance.

PKM.

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K U Masood Ahmad Mechanical Engineer   Mobile: +919805997411| Address: Kamela Road Purabsarai, Munger,Bihar, India ku.masood@gmail.com | Skype: KUMASOOD

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