Re: [MW:18313] Re: 42CrMo4 ( SAE 4140 ) Welding

Hi Prem

I have a similar situation and I hope replies to the mail will also be of use to me. 

Code AWS d1.1

Existing wps eh36 to eh36 material

Qualified range groove thickness max 50mm without PWHT

The pqr coupon was eh36 to eh36 material

Current situation details

4140 bar 200 dia welded to 100 mm eh36 plate fillet weld throat is 16 mm.

Query 

Can I use the above wps by using appropriate electrode which is within the AWS 5.20.

Your advise will be appreciated

Thanks

Rudolf

Sent from my iPhone

On 31 Jul, 2013, at 1:34 AM, prem nautiyal <prem_nautiyal26@yahoo.com> wrote:

Hi

We have successfully welded 42CrMo4 in past with E8018-B2, Preheat min. 150-200 degree celcius followed by PWHT.

Regards

Prem Nautiyal

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From: muhammad bilal <muhammadbilal6@gmail.com>
To: materials-welding@googlegroups.com
Sent: Tuesday, July 30, 2013 1:32 PM
Subject: [MW:18297] Re: 42CrMo4 ( SAE 4140 ) Welding

Dear All!

We have a screw 7inch diameter made of AISI 4140, its edges are wear our we have to build up, what will be best welding consumable and procedure.

Is 300C pre-heat necessary.........also 590-600C is post heat of PWHT, what is holding time?

Regards

M Bilal 

On Thursday, 11 August 2011 10:26:30 UTC+5, Sinan ARSLAN wrote:

Hi,

As you seen on drawing we will do fillet weld at this ring.The material grade 42CrMo4 ( SAE 4140 ).

I searched on internet it must be apply preheating which degree nearly 316ᵒ C before welding and after welding it must be apply heat thearetment ( 590  ᵒC-600  ᵒC ) and than cool down at room temperature.

Now i am looking an electrode for this material.

At enclosed i added speciality for this material.Could you advice me an electrode for this material?Which electrode?

--
Saygılarımla.
Best Regards.

Sinan ARSLAN

Mechanical Eng. 

Welding Eng.

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