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 -

Eddyfi
Eddyfi Technologies provide the most advanced NDT technologies in the world, helping OEMs, asset owners and service companies enhance productivit ...
11399 views
Technical Discussions
AJIT S. PAWAR
AJIT S. PAWAR
07:51 Feb-08-2009
Spot Radiography

Sir,
I want to know
1. What is spot radiography, acceptance criteria for it ?

2. What is ASTM A 516 material ?

3. What is the diff betn. SA 516 Gr. 70 & A 516 Gr.70 material ?

Can u please please send me answer for these?

Regards

Ajit

 
 Reply 
 
bob sudharmin
Engineering, Reliability and Integrity Eng
Shell Malaysia Trading, Malaysia, Joined Jan 2008, 54

bob sudharmin

Engineering, Reliability and Integrity Eng
Shell Malaysia Trading,
Malaysia,
Joined Jan 2008
54
16:45 Feb-08-2009
Re: Spot Radiography
In Reply to AJIT S. PAWAR at 07:51 Feb-08-2009 (Opening).

1. Spot radiography is an aid to quality control where the code does not require a weld to undergo full radiography (100%) . You can make reference to ASME VIII Div 1 UW-11. Acceptance criteria is UW-52
2. ASTM A 516 material is Carbon Steel Pressure Vessel Plates for Moderate and Lower Temperature Service.
3. There is no difference between SA516 Gr 70 and A516 Gr 70 materials. The difference is only in the Grades. ie Gr 65 is different from Gr 70

 
 Reply 
 
Michel Couture
NDT Inspector,
consultant, Canada, Joined Sep 2006, 868

Michel Couture

NDT Inspector,
consultant,
Canada,
Joined Sep 2006
868
17:17 Feb-08-2009
Re: Spot Radiography
In Reply to bob sudharmin at 16:45 Feb-08-2009 .

Hi Ajit,

To add to Bob's reply, A516 is the ASTM Specification while SA516 is the ASME equivalent.

Mechanical Properties Gr 70:
Tensile: 70 to 90 ksi
Yield: 38 ksi min
Elongation: 17% min in 8” 21% min in 2”

 
 Reply 
 
Roger Duwe
NDT Inspector, API-510, 570, 653
MISTRAS, USA, Joined Jan 2009, 148

Roger Duwe

NDT Inspector, API-510, 570, 653
MISTRAS,
USA,
Joined Jan 2009
148
21:26 Feb-08-2009
Re: Spot Radiography
In Reply to Michel Couture at 17:17 Feb-08-2009 .

The major difference in Spot vs. 100% RT, other than the coverage, is that in evaluating the image, porosity is not considered. ASME VIII QW-52 vs. QW-51

 
 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.
>

SITEX CPSERIES

Teledyne ICM’s CPSERIES has been designed with a view to revolutionizing the handling and perfor
...
mances of portable X-Ray sets. Despite having managed to halve the weight of similar portable X-Ray generators available on the market (while continuing to provide the same power output), the SITEX CPSERIES generators feature a shutter, a laser pointer, a beryllium window, an aluminum filter and two integrated diaphragms (customized sizes are available upon request). Without compromising the robustness and reliability for which ICM products are renowned, the small size and light weight of the SITEX CPSERIES will radically change the way that you perform your RT inspections. And you will see a positive impact in terms of both quality and return on investment (ROI).
>

iProbe - USB Phased Array Probe

Turn your PC, Laptop or Tablet into a powerful 32:64 Phased Array system with our USB powered Phas
...
ed Array iProbe and inspection software package. Perform affordable weld inspection and corrosion mapping inspections with this powerful but small system. The probe has a 100V pulser, 8K PRF, dual axis encoder input and achieves outstanding signal quality.
>

Wireless TOFD scanner

Quick, accurate and highly reproducible welds testing. The System operates wirelessly and is compat
...
ible with any type of Windows based Laptop, Desktop or Tablet.
>

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