Fasteners for Nace MR0175
Vinod Kataria
Dear All,
Please note for one of our ongoing project we have offered fasteners for our Level Gauge as ASTM A-320 Gr B8M Class 2 which is suitable for low temperature and High Pressure Rating but our customer asking these fasteners conforming to NACE MR0175 also for this application ASTM A-320 Gr B8M Class 1 is suitable but they cannot be used for high pressure rating i.e. 1500# so request suitable fasteners which will meet following service requirement:-
1. NACE MR0175 (Hardness Should be below 22 HRC).
2. Service Temperature -100 degree C.
3. Pressure Rating 100 bar.
Thanks in advance for your kind help.
Regards
Vinod Kataria
manpreet
From: "Vinod Kataria" <vinod....@blissanand.com>
Sent: Fri, 09 Dec 2011 15:10:29
To: <material...@googlegroups.com>
Subject: [MW:13166] Fasteners for Nace MR0175
Dear All,
Please note for one of our ongoing project we have offered fasteners for our Level Gauge as ASTM A-320 Gr B8M cl-ass 2 which is suitable for low temperature and High Pressure Rating but our customer asking these fasteners conforming to NACE MR0175 also for this application ASTM A-320 Gr B8M cl-ass 1 is suitable but they cannot be used for high pressure rating i.e. 1500# so request suitable fasteners which will meet following service requirement:-
1. NACE MR0175 (Hardness Should be below 22 HRC).
2. Service Temperature -100 degree C.
3. Pressure Rating 100 bar.
Thanks in advance for your kind help.
Regards
Vinod Kataria
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Vinod Kataria
Dear Manpreet,
Thanks for your mail please note ASTM A320 B8M Class 1 is low strength bolts and can be used for 150# or 300# only please refer ASME B16.5 clause 5.3.4 and also see table 1B.
A-320 B8M Class-2 are having more hardness so cannot be used for NACE MR0175 application.
Regards
Vinod Kataria
Materials & Welding
Vinod Kataria
Dear Mr. Singh,
Please see below :-
5.3.4 Low-Strength Bolting. Bolting materials having
no more than 206 MPa (30 ksi) specified minimum
yield strength are listed as low strength in Table 1B.
These materials and others of comparable strength are
to be used only in Class 150 and 300 flanged joints
and only with gaskets described in para. 5.4.2. Flanged
assemblies using low-strength carbon steel bolts should
not be used above 200°C (400°F) or below −29°C (−20°F).
If you see the table 1B, your will find that ASTM A-320 B8M Class-1 is low strength fasteners so can not be used for 1500# rating, hope to clarifed your doubt.
With kind regards,
Vinod Kataria
General Manager
Bliss Anand Private Limited,
92B/93B Sector 5
IMT Manesar,Gurgaon,
National Capital Region Delhi.
India .
Phone : +91-124-4366000 - 09
Mobile Phone : +91-9560199004
Fax : +91-124-2290884
This email is intended only for the person to whom it is addressed and/or otherwise authorized personnel. The information contained herein and attached is confidential and the property of Bliss Anand Group. If you are not the intended recipient, please be advised that viewing this message and any attachments, as well as copying, forwarding, printing, and disseminating any information related to this email is prohibited, and that you should not take any action based on the content of this email and/or its attachments. If you received this message in error, please contact the sender and destroy all copies of this email and any attachment. Please note that the views and opinions expressed herein are solely those of the author and do not necessarily reflect those of the company. While antivirus protection tools have been employed, you should check this email and attachments for the presence of viruses. No warranties or assurances are made in relation to the safety and content of this email and attachments. Bliss Anand accepts no liability for any damage caused by any virus transmitted by or contained in this email and attachments. No liability is accepted for any consequences arising from this email.
From: material...@googlegroups.com [mailto:material...@googlegroups.com]
Sent: Tuesday, August 06, 2013 3:36 PM
To: material...@googlegroups.com
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Raghuram Bathula
Dear Mr. Singh,
Please see below :-
5.3.4 Low-Strength Bolting. Bolting materials having
no more than 206 MPa (30 ksi) specified minimum
yield strength are listed as low strength in Table 1B.
These materials and others of comparable strength are
to be used only in Class 150 and 300 flanged joints
and only with gaskets described in para. 5.4.2. Flanged
assemblies using low-strength carbon steel bolts should
not be used above 200°C (400°F) or below −29°C (−20°F).
If you see the table 1B, your will find that ASTM A-320 B8M Class-1 is low strength fasteners so can not be used for 1500# rating, hope to clarifed your doubt.
With kind regards,
Vinod Kataria
General Manager
Bliss Anand Private Limited,
From: material...@googlegroups.com [mailto:material...@googlegroups.com]
Sent: Tuesday, August 06, 2013 3:36 PM
To: material...@googlegroups.com
Subject: Re: [MW:18354] Fasteners for Nace MR0175
Vinod Kataria
We have taken the deviation for using B7M and customer accepted that after checking actual service condition.
With kind regards,
Vinod Kataria
General Manager
Bliss Anand Private Limited,
92B/93B Sector 5
IMT Manesar,Gurgaon,
National Capital Region Delhi.
India .
Phone : +91-124-4366000 - 09
Mobile Phone : +91-9560199004
Fax : +91-124-2290884
This email is intended only for the person to whom it is addressed and/or otherwise authorized personnel. The information contained herein and attached is confidential and the property of Bliss Anand Group. If you are not the intended recipient, please be advised that viewing this message and any attachments, as well as copying, forwarding, printing, and disseminating any information related to this email is prohibited, and that you should not take any action based on the content of this email and/or its attachments. If you received this message in error, please contact the sender and destroy all copies of this email and any attachment. Please note that the views and opinions expressed herein are solely those of the author and do not necessarily reflect those of the company. While antivirus protection tools have been employed, you should check this email and attachments for the presence of viruses. No warranties or assurances are made in relation to the safety and content of this email and attachments. Bliss Anand accepts no liability for any damage caused by any virus transmitted by or contained in this email and attachments. No liability is accepted for any consequences arising from this email.
--