where expertise comes together - since 1996 -

The Largest Open Access Portal of Nondestructive Testing (NDT)

Conference Proceedings, Articles, News, Exhibition, Forum, Network and more

where expertise comes together
- since 1996 -
105 views
Technical Discussions
Fredric A Schuster
Consultant,
Canada, Joined Dec 2015, 3

Fredric A Schuster

Consultant,
Canada,
Joined Dec 2015
3
18:11 Aug-24-2019
AWS D1.5 clause 6.26.3.3

Hello colleagues
I have an issue of concern. I am employed to be QA in a fabrication shop making FCM box girders. The contract 051200 doc references states "D 1.5 AASHTO/AWS Bridge Welding Code" but no year. So I assume it is the latest 2015? I have been performing 25% UT after the fabricators QC techs perform 100% . There are 4 box girders in my shop and I don't know how many are already made in other shops for the same bridge. The QC UT were evaluating the indications per table 6.3 (tensile stress) criteria and then changes to 6.4 compressive. There reason is that clause 6.26.3.3 states "CJP groove web-to-flange shall conform to the requirements of table 6.4..... Now I read this in AWS D1.5 2008 but on line I saw that Michigan DOT underlined an errata to correct this to 6.3 tensile. ALso in clause 12.2.2 FCM or member components are tension members. ...12.2.2.2 welds to compression members of compression areas of bending shall not be defined as fracture critical" All welds that are on a FCM are tension welds in my opinion and the clause 6.26.3.3 should read table 6.3 tension criteria. I am concerned that the lowering of criteria to 6.4 may miss defects and especially since the code requires 6db indications to be recorded this will affect the future inspections of the bridge. So is clause 6.26.33 and good excuse to be less severe in the ut and go to table 6.4 compression????

    
 
 Reply 
 

Product Spotlight

EKOSCAN Phased Array

In order to always fit your needs, EKOSCAN can manufacture any type of UT transducer, either convent
...
ional or Phased Array. As an ISO 9001: 2015 certified company, EKOSCAN is extremely careful as far a material selection and manufacturing processes are concerned. Our probes guarantee our customers the benefits of latest innovations regarding piezo-composite, backing, impedance adaptation layer, etc. Specific probes for hostile environment: high temperature, high pressure, corrosive environment,etc. Specific probes designed to fit your specific application: optimization of every parameter to guarantee you the best detection.
>

Sci Aps Z-Series Portable Handheld Analysers

The world’s only handheld analyzer that measures carbon content in stainless (yes even L-grades),s
...
teels, and cast irons. Also accepted for low Si analysis for sulfidic corrosion analysis, and is widely used in the power industry for Cr analysis, for flow accelerated corrosion applications.
>

Panther

M2M PANTHER is a phased-array equipment designed for both desktop and industrial applications, offer
...
ing unparalleled performance in a compact unit. It combines the speed required for industrial integrated Phased-Array Ultrasound (PAUT) solutions, with the most complete set of total focusing method (TFM) imaging techniques, making it the ultimate tool for R&D and procedure qualification.
>

Navic - Steerable Modular Automated Scanner

The Navic is a modular, motorized, steerable scanner designed to carry multiple attachments used
...
in various scanning and inspection applications. The Navic is capable of weld scanning (girth welds and long seam welds), automated corrosion mapping, and tank scanning.
>

Share...
We use technical and analytics cookies to ensure that we will give you the best experience of our website - More Info
Accept
top
this is debug window