Welding API 5L X70 steel to SA182 F22
Welding API 5L X70 steel to SA182 F22
(OP)
My first post on this forum... A pleasant surprise to find this place. I have a project that requires joining 5/8" thick material of the grades listed above. The first coupon was performed with an E80xx (GTAW) and subsequent passes with e100xx (SMAW) fillers. The coupon failed hardness. Preheat was 500F and interpass was 600F with PWHT 1175F for 4 hrs. Im thinking about going to an e80xx for all passes and hoping to pass tensile. Any thoughts from someone with experience with this combination is appreciated.





RE: Welding API 5L X70 steel to SA182 F22
RE: Welding API 5L X70 steel to SA182 F22
RE: Welding API 5L X70 steel to SA182 F22
RE: Welding API 5L X70 steel to SA182 F22
RE: Welding API 5L X70 steel to SA182 F22
X70 is microalloyed and thus should never experience PWHT. Buttering is a technique for getting around PWHT incompatibility.
"If you don't have time to do the job right the first time, when are you going to find time to repair it?"
RE: Welding API 5L X70 steel to SA182 F22
These are the readings on the X70 HAZ from cap to root- 261,242,196,216,221
RE: Welding API 5L X70 steel to SA182 F22
RE: Welding API 5L X70 steel to SA182 F22
What is the hardness acceptance criterion? Is it 248 HV10? And, do you need to hit Charpy energy criteria too?
Steve Jones
Materials & Corrosion Engineer
http://www.linkedin.com/pub/8/83b/b04
All answers are personal opinions only and are in no way connected with any employer.
RE: Welding API 5L X70 steel to SA182 F22
RE: Welding API 5L X70 steel to SA182 F22
RE: Welding API 5L X70 steel to SA182 F22
Steve Jones
Materials & Corrosion Engineer
http://www.linkedin.com/pub/8/83b/b04
All answers are personal opinions only and are in no way connected with any employer.
RE: Welding API 5L X70 steel to SA182 F22