×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

when to follow ASTM A530 for hydrotest pressure calculations.
4

when to follow ASTM A530 for hydrotest pressure calculations.

when to follow ASTM A530 for hydrotest pressure calculations.

(OP)
In general for process piping ASME B31.3 is used for calculation of Hydrotest pressure.
Today I came across ASTM A530, which also specifies as
"each length of
pipe shall be tested by the manufacturer to a hydrostatic
pressure which will produce in the pipe wall a stress not less
that 60 % of the minimum specified yield strength for carbon
and ferritic alloy steel pipe, or 50 % of the specified minimum
yield strength for austenitic alloy steel pipe.
"

Can anyone clarify when to go for ASTM A530 method for a hydrotest?

RE: when to follow ASTM A530 for hydrotest pressure calculations.

4
ASTM A530 ( and just about any ASTM AXXX) is a pipe material standard. This includes a minimum test on the pipe after manufacture as part of the manufacturing process, commonly called "mill tests". It provides a very basic level of assurance that your pipe has been manufactured properly. You should therefore have few worries about the quality and integrity of your pipe.

B31.3 is a fabrication standard where various bits, including pipe, get joined together to form a system. This system is then hydrotested to prove its integrity after it has been fabricated. The code provides minimum requirements for the testing of this system which may or may not exceed the test level performed by the pipe vendor depending on the design pressure of the system.

The two should not be confused with each other.

My motto: Learn something new every day

Also: There's usually a good reason why everyone does it that way

RE: when to follow ASTM A530 for hydrotest pressure calculations.

Good explanation LI.

David Simpson, PE
MuleShoe Engineering

In questions of science, the authority of a thousand is not worth the humble reasoning of a single individual. —Galileo Galilei, Italian Physicist

RE: when to follow ASTM A530 for hydrotest pressure calculations.

(OP)
LittleInch, Thank you for the clarification

RE: when to follow ASTM A530 for hydrotest pressure calculations.

Thanks thumbsup2

My motto: Learn something new every day

Also: There's usually a good reason why everyone does it that way

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources