Re: [MW:12191] RE: 12181] 42CrMo4 ( SAE 4140 ) Welding

If you need a matching filler metal, choose B grades like ER 80S-B1 or B2 or E8018-B1 or B2 electrodes. use 300c preheat and immediately after welding carry out PWHT without letting the part to cool down.

If you use ER80S-G check for the chemical analysis, they use different alloying elements in G grades. some have Ni, some have Cr+Mo, they give you different characteristics...


What is you application...?

1. Do you need your welds to have a minimum hardness and higher strength...?
2. or is it a high temperature application...?

It makes difference when you use 4140 for its hardness and strength rather than for creep resistance...

Regards

Ramin  Kondori

   QC/Welding Engineer 

         IWE AT 0070

   

On Thu, Aug 11, 2011 at 12:46 PM, Pieper QSI <pieper-qsi@kpnmail.nl> wrote:

Dear Mr. Arslan,

 

For this kind of casting material we always use the following filler metal, it's a GMAW wire. I'm sure you also can use this one for your application as well or you can look at your local supplier for a filler metal with similar code. If you choose another welding process you should also look in this direction.

 

G CrMo 1 Si / ER 80S-G / Union I CrMo / Böhler Thyssen

 

 

Met vriendelijke groeten / Best Regards

 

Herman Pieper

 

Pieper Quality Support & Inspection

Phone: +31 (0)521 380083

Fax:     +31 (0)84 7539225

Cell:     +31 (0)6 51691215

www.pieper-qsi.nl

 

Van: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] Namens Sinan ARSLAN
Verzonden: donderdag 11 augustus 2011 7:27
Aan: materials-welding@googlegroups.com
Onderwerp: [MW:12181] 42CrMo4 ( SAE 4140 ) Welding

 

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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