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Re: [MW:22379] AISI 4140 material

By Materials & Welding
Dear Pravin,
Please follow the steps below.
1. preheat to 200 Deg. C
2. Use ER 80 S D2  for GTAW, if it is intended for root and hOt pass of a weld in a combination of processes, otherwise ER 100S D2.
3. Use E 10018 D2 or E11008 M for SMAW.
4. After welding put the blanket over the weld to allow slow cooling.
5. PWHT at 10 deg. lesser than Quenching temperature ( 630 Deg.C - 650 Deg.C) for atleast 2 Hours.
 
Thanks and Best Regards,
K.Rajagopal
 
On Wed, Nov 26, 2014 at 4:15 PM, Pravin Poornachandran <htcispravin@gmail.com> wrote:
Dear Expert,

Anyone have any experience welding on AISI 4140/4130 material?

What is the best welding consumable can be recommended for this kind of material.

Along my knowledge, 4140 is high tensile & high yield strength material which requires proper welding condition such as preheat, interpass temperature control etc.

Kindly assist me on the welding consumable for this kind for
SMAW
GTAW
FCAW/GMAW
SAW

Best regards,
Pravin Poornachandran
Singapore

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