4130 PQR Material

Question

4130 PQR Material

HMN (Materials)

(OP)

1 Sep 17 13:21

Hello All,

My PQR material A519 4130 has the tempering temperature at 1051 F(It's a stock material so). My job has a tempering temperature of 1200 F and on job the PWHT is @1150 F. My PQR material is also going to be PWHT @ 1150 F.

My question is would it be a problem to do PWHT on PQR @ 1150 F in spite of the tempering temperature 1050 F. I have read that PWHT shall be 50 F lower than the tempering temperature.

Regards,
Himanshu Naik

weldstan (Materials) · Answer 1 · 2017-09-01 13:29:57

Tensile strength properties will be diminished.

HMN (Materials) · Answer 2 · 2017-09-01 13:56:20

Weldstan - 106000 psi is the tensile strength of the PQR material and I am going to do PWHT @1150 F for 2 hours and as per code 95000 psi is the requirement. So just wanted to know,after PWHT will the tensile properties be bad considering it has 105000 psi strength.

weldstan (Materials) · Answer 3 · 2017-09-01 16:14:49

Depending on the weld filler metal used, you should be able to meet the 95 ksi minimum ultimate tensile strength requirement.

HMN (Materials) · Answer 4 · 2017-09-01 16:23:42

I am using ER100S-G for TIG, MIG, E101T1-GM for FCAW and F9P8-EF3-F3-H4 for SAW.

weldstan (Materials) · Answer 5 · 2017-09-02 13:48:19

I think you are cutting it close with the SAW filler. Good luck.

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