I have a technical question about the amount of copper in A283 sheets.
In standard A283, the amount of copper is specified as at least %0.2. Of course, it is said that when copper is specified. Can anyone advise if the buyer does not specify the amount of copper to the manufacturer, the...
Does anyone know why choke valves (specifically adjustable choke valve) does not have a seat test?According to the standard api 6a, Table 30 of the 2018 edition, only the body test is defined for them. (Api 6a-2018,Section 14.15.4 refers to Section 11, which sets the test priority according to...