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 -

YXLON International GmbH
1079 views
Technical Discussions
AJIT S PAWAR
Engineering, Inspector
V.J.T.I., India, Joined Feb 2009, 8

AJIT S PAWAR

Engineering, Inspector
V.J.T.I.,
India,
Joined Feb 2009
8
11:42 Feb-19-2009
Querry

1. What is the difference between IS2062 & ASTM 516 ?
2. On what basis, radiography is specified for particular vessel ( spot / full) ?
3. Difference betn A193 Gr.B7 & A193 Gr.B7M , 2H & 2HM ?
4. Diff. among GTAW, SMAW, SAW?

    
 
 Reply 
 
Michel Couture
NDT Inspector,
consultant, Canada, Joined Sep 2006, 836

Michel Couture

NDT Inspector,
consultant,
Canada,
Joined Sep 2006
836
18:41 Feb-19-2009
Re: Querry
In Reply to AJIT S PAWAR at 11:42 Feb-19-2009 (Opening).

Ajit,

ASTM A 516/A 516M Standard Specification for Pressure Vessel Plates, Carbon Steel, for Moderate- and Lower-Temperature Service and is one of the most popular steel grades in market .

It is primarily intended for use in welded pressure vessels where notch toughness is important. It comes in four grades 55, 60, 65 & 70. At Oakley Steel we mainly sell 516 gr 60 and 516 gr 70. These grades cover a range of tensile strengths from 55 - 90 MPa and this versatility explains much of the specifications popularity.

Carbon 0.27 - 0.31%
Manganese 0.79 - 1.3%
Phosphorous 0.035% max
Sulphur 0.035% max
Silicon 0.13 - 0.45%


IS2062 Specification of Steel for General Purpose Application
CHEMICAL COMPOSITION
Grade C% Max. Mn% Max. S% Max. P% Max. Si% Max. C.E.% Max.
A 0.23 1.50 0.050 0.050 0.40 0.42
B 0.22 1.50 0.045 0.045 0.40 0.41
C 0.20 1.50 0.040 0.040 0.40 0.39
MECHANICAL PROPORTIES
Grade UTS(MPa) Min. Y.S.(MPa) Min. El.% Min. 5.65 Sqrt(So) Bend
Test
A 410 250 240 230 23 3T
B 410 250 240 230 23 2T & 3T *
C 410 250 240 230 23 2T
* 2T - <= 25mm
* 3T - > 25mm

The ASTM A193 standard covers alloy steel and stainless steel bolting materials for high temperature service. This specification includes fasteners intended for use in pressure vessels, valves, flanges, and fittings. Although, this material is often available in national coarse (UNC) thread pitches, if being used in traditional applications, threads are specified 8 threads per inch (tpi) for diameters above one inch.
ASTM A193 Grade B7- Chromium-Molybdenum Steel
ASTM A193 Grade B7M- Reduced tensile strength, hardness controlled to 235 Brinell max.

The ASTM A194 specification covers carbon, alloy and stainless steel nuts intended for use in high-pressure and/or high-temperature service. & Carbon Steel Nut Materials Specifications
ASTM A194 Grade 2H- Recommended use with A325 Structural Bolts, High Pressure & High Temp.
Medium Carbon Steel, Quenched and Tempered, Tempering Temp. 1000°F, Proof Load Stress, 175ksi Hardness Rockwell C24 Min. C38 Max.

ASTM A194 2HM Recommended use with A325 Structural Bolts, High Pressure & High Temp. Medium Carbon Steel, Quenched and Tempered, Tempering Temp. 1000°F, Proof Load Stress, 150ksi Hardness Brinell 159 Min. 237 Max.

Regarding the different welding processes, please go to the following link:
http://books.google.ca/books?id=Opf0tehDNMwC&pg=PA192&lpg=PA192&dq=smaw+process&source=bl&ots=gH4hqdxI9n&sig=WixLn7g68aCR1aBxh1VZo5J6V4Y&hl=en&ei=GJmdSezOLYTSMeTXjZcF&sa=X&oi=book_result&resnum=1&ct=result#PPA194,M1

    
 
 Reply 
 

Product Spotlight

IRIS 9000Plus - Introducing the next generation of heat exchanger inspection.

Representing the seventh generation of the IRIS system, the IRIS 9000 Plus has nearly 200 years of c
...
ombined field inspection experience incorporated in its design. This experience combined with a strong commitment to quality and a history of innovation has made Iris Inspection Services® the undisputed leader in IRIS technology.
>

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.
>

FlexoFORM™

The FlexoFORM™ solution integrates flexible phased array probe technology in a scanner to solv
...
e the challenges that come with inspecting pipe elbows. When combined with a water column, this solution can be used to collect easy-to-interpret data on elbows with diameters ranging from 4.5 in. OD up to flat and offers many benefits.
>

Research and Applications Development For NDT

The Research and Applications Development (RAD) group is a newly formed team within Acuren dedicat
...
ed to tackling challenging inspection problems. Our focus is the development of novel, field deployable, advanced inspection techniques for use in cases where standard NDT methods are ineffective. We don't wait for new innovations, we engineer them. From concept to commissioning.
>

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