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 -

VOGT Ultrasonics GmbH
non-destructive testing, services, training, ultrasonic systems, immersion and squirter inspection systems, PROline, digital radiology

703 views
Technical Discussions
Fred Raco, Jr.
Consultant,
RNDT, Inc., USA, Joined Jul 2002, 24

Fred Raco, Jr.

Consultant,
RNDT, Inc.,
USA,
Joined Jul 2002
24
05:06 Apr-22-2005
super austenitic plate material

Can anyone assist us on a way of measuring the residual magnetism (if any) on a super austenitic plate material after welding?


    
 
 Reply 
 
DJ Kallhof
DJ Kallhof
01:26 Apr-22-2005
Re: super austenitic plate material
Austenitic stainless steels unlike Martensitic don't typically have residual magnetism problems. To verify this I would suggest using a Hall Effect Probe. Just out of curiousity, what is the AMS number of the material you are dealing with?
----------- Start Original Message -----------
: Can anyone assist us on a way of measuring the residual magnetism (if any) on a super austenitic plate material after welding?
------------ End Original Message ------------




    
 
 Reply 
 
Jim Knowles
Jim Knowles
02:54 Apr-28-2005
Re: super austenitic plate material
Austenitics do suffer from a magnetic effect especially after a weld repair, its called retained Delta ferrite.
Too higher delta ferrite can impair the corrosion properties of the stainless material. The delta ferrite levels usually found after welding to an approved weld procedure can be between 3-6% Fe, on repairs to a repair or un authorised re running of weld cap profiles levels of Fe can rise to around 10-12%.
Equipmemt used to measure accurately is the Forster Mangnetoscop 1.068 model.


----- Start Original Message -----------
: Austenitic stainless steels unlike Martensitic don't typically have residual magnetism problems. To verify this I would suggest using a Hall Effect Probe. Just out of curiousity, what is the AMS number of the material you are dealing with?
: : Can anyone assist us on a way of measuring the residual magnetism (if any) on a super austenitic plate material after welding?
------------ End Original Message ------------




    
 
 Reply 
 

Product Spotlight

AIS229 - Multipurpose Real Time System

Latest standard & automatic real time system developed by Balteau. The AIS229 has been designed to
...
do series inspection in a wide variety of industry. Composed of a shielded cabinet, 5 axis manipulator, x-ray generator and tubehead from 160kV to 225kV, a fl at panel & much more, the AIS229 is most certainly one of the most multipurpose RTR system available on the market.
>

Ultrasonic Squirter/Gantry System

TecScan’s NDT Ultrasonic Gantry Systems are industrial Squirter scanners designed for non-destru
...
ctive quality testing and raster scanning of large structures and parts. The Gantry Systems are usually composed of an Industrial Mechanical Scanner and a Control Room with System Workstation.
>

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.
>

XRHRobotStar

In high volume industries like automotive the requirement for a hundred percent X-ray inspection c
...
reates a bottleneck in the production. The XRHRobotStar is a fully Automated Defect Recognition (ADR) capable robot-system that allows an ultra-fast in-line inspection.
>

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