[MW:1650] RE: 1642] Re: FW: API 5L Gr B and A 106 Gr B

From a weldability perspective, both grades are weldable with similar
welding procedures, consumables and processes. Both materials are
classified as S-No 1 Group 1 materials in ASME Section IX. The
difference in the seamless and seamed nature of the two grades may have
an influence on pipe dimensions, for eg the seam welded Grade B pipes
may be expected to have Local OOR at the long seam. This will however be
of significance only for mechanised or automatic welding. Though the 5L
Grade B pipes may be impact tested as per the material specification,
the design code requirements will apply for material, weld and HAZ
impact testing (Refer B31.3 or ASME section VIII div 1 as applicable).

Rgds

Sayee

-----Original Message-----
From: materials-welding@googlegroups.com
[mailto:materials-welding@googlegroups.com] On Behalf Of Quality
Sent: 25 February 2009 15:32
To: materials-welding@googlegroups.com
Subject: [MW:1642] Re: FW: API 5L Gr B and A 106 Gr B

Dear all,

This is not true always. (use as an alternate to each other). Some
occasions one standard pipe can not be replaced/used in place of other,
depending upon design/ service requirement.

The common similarity between these pipes are Tensile & yield strength
property.

ASTM A 106 pipe is seamless by default (Always), whereas API 5L may be
manufactured as welded construction as well. Some specific cases,
designer specifies only seamless pipes (A 106) are acceptable, you may
not able to replace it with API 5L Gr B (welded) pipe.

A 106 need not be tested for notch toughness. Where as API 5L pipes can
be 'demanded' for notch toughness test.
At locations/conditions where materials need to be have notch toughness
& resist crack propagation, API 5L certified pipes are recommended &
preferred rather than A 106.

Regards,
Sanjeevan

----- Original Message -----
From: "rutvik dixit" <rutvikdixit@yahoo.co.in>
To: <materials-welding@googlegroups.com>
Sent: Wednesday, February 25, 2009 6:40 PM
Subject: [MW:1640] Re: FW: API 5L Gr B and A 106 Gr B

Dear Rafique,
You can use both as alternate to each other.for detail
please
refer mech,chem props,service condition in their respected API and ASTM
spec.

Regards,
Rutvik

--- On Tue, 24/2/09, rafique naik <rafiquenaik@hotmail.com> wrote:

> From: rafique naik <rafiquenaik@hotmail.com>
> Subject: [MW:1619] FW: API 5L Gr B and A 106 Gr B
> To: "welding group" <materials-welding@googlegroups.com>
> Date: Tuesday, 24 February, 2009, 11:57 PM
> Dear ALL,
>
> Please explain the difference as asked my Mick....., I am
> forwarding this mail to the group because I know this mail
> will reach to experts and they can reply in better way.
>
> Thanks and regards,
>
> Rafique
>
> From: crc1199@hotmail.com
> To: rafiquenaik@hotmail.com
> Subject: API 5L Gr B and A 106 Gr B
> Date: Tue, 24 Feb 2009 13:15:47 -0500
>
>
>
>
>
>
>
>
> Dear Rafique,
>
> Please explain me what is the difference between API 5L Gr
> B and ASTM A 106 Gr.B pipes.
>
> Regards,
>
> MICK
>
> Access your email online and on the go with Windows Live
> Hotmail. Sign up today.
> _________________________________________________________________
> Chose your Life Partner! Join MSN Matrimony FREE
> http://www.in.msn.com/matrimony
>

Add more friends to your messenger and enjoy! Go to
http://messenger.yahoo.com/invite/

TWI Ltd
Registered Number: 3859442 England
Registered Office: Granta Park, Great Abington, Cambridge, CB21 6AL, UK

_______________________________________________________________________
The information in this e-mail is confidential, and may be legally
privileged. It is intended only for the person(s) specified in the
above address. Access to this e-mail by anyone else is unauthorised,
and any disclosure, copying, distribution or other use of this e-mail
is prohibited and may be unlawful. We will not under any circumstances
have any responsibility or liability arising out of or in connection
with any unauthorised use of this e-mail. Please inform us if this
message has gone astray before deleting it.

Please note that all e-mail is monitored.

When sending e-mails to TWI, please help us by including your name,
company, and details in your e-mail signature.

Seeking Technical Information? Industrial Members can access data as
JoinIT registrants on http://www.twi.co.uk
_______________________________________________________________________

--~--~---------~--~----~------------~-------~--~----~
To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to materials-welding-unsubscribe@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
-~----------~----~----~----~------~----~------~--~---