Previous in Forum: Regenerative Feed Water Heaters   Next in Forum: "Thermal Mass Flow" Usage
Close

Comments Format:






Change Mode
Close

Subscribe to Discussion:

CR4 allows you to "subscribe" to a discussion
so that you can be notified of new comments to
the discussion via email.

Close

Rating Vote:







Add Vote
4 comments
Rate Comments: Nested
ela
Member

Join Date: Aug 2012
Posts: 8

Usage of ASTM A283 Grade A

08/15/2012 7:42 AM

what is the usage of ASTM A283 grade A in tank fabrication?could we use it instead of A283 grade C?
Register to Reply
Pathfinder Tags: material- mechanical- tank
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.
bigg
Guru

Join Date: Jun 2010
Posts: 1296
Good Answers: 104
#1

Re: Usage of ASTM A283 Grade A

08/15/2012 9:45 AM

What code is the tank being built to and what does that code say?

Hint question: How do the minimum yield and minimum tensile strengths of the 2 materials compare?
Register to Reply
ela
Member

Join Date: Aug 2012
Posts: 8
#2
In reply to #1

Re: Usage of ASTM A283 Grade A

08/16/2012 12:42 AM

thank you for your reply dear bigg.

the code is API 650.

A283-C : min yield= 380 MPa min tensile= 205

A283-A: min yield= 310 MPa min tensile= 165

the tank is atmospheric type.

how could I calculate the safety value of yield and tensile strength?
Register to Reply
bigg
Guru

Join Date: Jun 2010
Posts: 1296
Good Answers: 104
#3
In reply to #2

Re: Usage of ASTM A283 Grade A

08/16/2012 9:13 AM

Are you the designer or the fabricator?

If you are the designer, carry out the design calculations using the allowable stresses for the material (Grade A) you intend to specify.

If you are the fabricator, NO you cannot substitute material unless specifically allowed by the code. That's what specifications and codes are for.
Register to Reply
ela
Member

Join Date: Aug 2012
Posts: 8
#4
In reply to #3

Re: Usage of ASTM A283 Grade A

08/25/2012 11:56 PM

thank you very much Bigg.

I am a fabricator.
Register to Reply Off Topic (Score 5)
Register to Reply
Have a Different Question?
4 comments

Previous in Forum: Regenerative Feed Water Heaters   Next in Forum: "Thermal Mass Flow" Usage

Advertisement

Got Something to Say?
Ask a Question
Start a Discussion

Search this Forum
Mechanical Engineering:
Go

CR4 Sections
Aerospace
BioMech & BioMed
Chemical & Material Science
Civil Engineering
Communications & Electronics
Education and Engineering Careers
Electrical Engineering
General Discussion
Instrumentation
Manufacturing
Mechanical Engineering
New Technologies & Research
Software & Programming
Sustainable Engineering
Transportation

Site Directories
Forum Directory
Blog Directory
User Group Directory
RSS Feeds

CR4 Rules of Conduct
CR4 FAQ
Site Glossary

Who's Online (73 right now)
Show Members
Advertisement