4130 Preheat and Interpass
4130 Preheat and Interpass
(OP)
Hello All,
We have a job of A519 type 4130 material per ASME B31.3 having thicknesses ranging from 0.344" - 1.88". 4130 material is unclassified per ASME B31.3.
I am starting to weld a PQR for 4130 material
- Can anyone tell me what is the preheat and interpass temperature for A519 Type 4130 material?
- Is preheat required for all thicknesses?
- Is PWHT required for all thicknesses?
We have a job of A519 type 4130 material per ASME B31.3 having thicknesses ranging from 0.344" - 1.88". 4130 material is unclassified per ASME B31.3.
I am starting to weld a PQR for 4130 material
- Can anyone tell me what is the preheat and interpass temperature for A519 Type 4130 material?
- Is preheat required for all thicknesses?
- Is PWHT required for all thicknesses?





RE: 4130 Preheat and Interpass
PWHT will be based on service conditions regarding maximum hardness requirements.
RE: 4130 Preheat and Interpass
RE: 4130 Preheat and Interpass
RE: 4130 Preheat and Interpass
RE: 4130 Preheat and Interpass
RE: 4130 Preheat and Interpass
RE: 4130 Preheat and Interpass
RE: 4130 Preheat and Interpass
RE: 4130 Preheat and Interpass
RE: 4130 Preheat and Interpass
What thickness are your production parts?
What process?
Which position are you taking the PQR?
RE: 4130 Preheat and Interpass
- GTAW (ER100S-G), GMAW(ER100S-G), FCAW (E101T1), SAW (F9P8-EF3-F3-H4)
- 5G (All except SAW), SAW (1G)
RE: 4130 Preheat and Interpass
Why 5G? I'm not extremely familiar with B31.3 so that might be your reasoning.
RE: 4130 Preheat and Interpass
RE: 4130 Preheat and Interpass
RE: 4130 Preheat and Interpass
RE: 4130 Preheat and Interpass
RE: 4130 Preheat and Interpass
RE: 4130 Preheat and Interpass
RE: 4130 Preheat and Interpass