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?
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.
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.
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.
RE: when to follow ASTM A530 for hydrotest pressure calculations.
My motto: Learn something new every day
Also: There's usually a good reason why everyone does it that way