Welding with tuboscope or other sleeve/device that protects coating
Welding with tuboscope or other sleeve/device that protects coating
(OP)
Hi,
1. Has anyone welded pipeline with tuboscope sleeve or any other sleeve/device that proctects internal coating while welding pipe?
2. So far, I have a WPS and PQR that is used for the pipe which is; 2"-8", API 5L x-42, x-52, x-60 materials and all butt welds, but with the addition of this sleeve, the manufacturer specified:
1. a specific range of travel speed
2. application of epoxy
3. using lowest heat setting possible
4. well ventilated welding space
5. max interpass temp. of 250 deg F
The above does not require re-qualification of the procedure right?
I mean, they can just be added to the existing procedure as "supplemental information" or "other" right?
Thank you.
1. Has anyone welded pipeline with tuboscope sleeve or any other sleeve/device that proctects internal coating while welding pipe?
2. So far, I have a WPS and PQR that is used for the pipe which is; 2"-8", API 5L x-42, x-52, x-60 materials and all butt welds, but with the addition of this sleeve, the manufacturer specified:
1. a specific range of travel speed
2. application of epoxy
3. using lowest heat setting possible
4. well ventilated welding space
5. max interpass temp. of 250 deg F
The above does not require re-qualification of the procedure right?
I mean, they can just be added to the existing procedure as "supplemental information" or "other" right?
Thank you.





RE: Welding with tuboscope or other sleeve/device that protects coating
Steve Jones
Materials & Corrosion Engineer
http://www.linkedin.com/pub/8/83b/b04
RE: Welding with tuboscope or other sleeve/device that protects coating
Could you please explain what kind of issues that the sleeve may cause to the pipe material, do you need me to find out what the sleeve material is?
Also, since backing is "nonessentional" in ASME IX, adding backing will not require a requalification right/
Thanks a lot.
RE: Welding with tuboscope or other sleeve/device that protects coating
Additionally, i think [my Sect-IX is elsewhere] that X60 is a material group P-1 material, which is the same group as A-36, A-516 Gr. 70, etc. Very hard to find a material incompatible with standard API pipe grades.
RE: Welding with tuboscope or other sleeve/device that protects coating
Steve Jones
Materials & Corrosion Engineer
http://www.linkedin.com/pub/8/83b/b04