Regarding Impact testing for pipe supports.

[mohit aggarwal]

Hi Experts, 

Hope you are doing well!

We have one problem arises on construction site of material mix-up without any physical traceability i.e. In LTCS line some pipe supports welded of CS material SPS-F-8001 or Structural Material S275 JR but welding done with LTCS 8018-C3 consumable.

Line service is Pressurized LPG with MDMT -45 deg C. material of pipe-SA333 Gr6.

My query is how this can be sort out as client raise the objection of traceability.

Regards

Mohit Aggarwal.

[Vishwas Keskar]

Carry out PMI of Weld metal.

If it is welded with E8018 C3 ,PMI will show Ni % .

Take further action as the case may be

--
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-weld...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/85cddfa3-0212-4c84-9a8c-fe16ee733576n%40googlegroups.com.

[mohit aggarwal]

PMI will be carried out but what about base material. Main problem is for the base material.

You received this message because you are subscribed to a topic in the Google Groups "Materials & Welding" group.
To unsubscribe from this topic, visit https://groups.google.com/d/topic/materials-welding/CFm4UP4ukHk/unsubscribe.
To unsubscribe from this group and all its topics, send an email to materials-weld...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/CADder3NeV2VaNa_KHGT%2Bx1KnhAwjZQLNGDRwRCo_1wQJ%2BB_JFg%40mail.gmail.com.

[Vishwas Keskar]

Remove one support and do all physical testing .

Discuss with Clinet about this action and take concent.

To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/CAOf2ac5A79fAhr2pdqyinDP_5fZHBZMrmPK1i%3D31z6k_cWqo6Q%40mail.gmail.com.

[james gerald]

According to ASME B31.3, permanent support material shall be suitable for service as per below snap shot.

It depends on the number of Supports installed to have a thorough check, if it is few in Number Then you can perform a PMI or chemical analysis by collecting chippings on the support material and check for Nickel.

S275JR do not contain Nickel whereas A333 Gr,6 contains max 0.4% Nickel.

Another method is metallography but it is expensive as you need to hire an external consultant.

WEld is not a problem as you have welded using E8018C3 (with 0.8 - 1.2 % Nickel) suitable for the service.

Thanks & Regards

J.Gerald Jayakumar