Hello,
As vanchi wrote it's important to review flux/wire class and the others essential variables
For lincoln 880-flux, and LA90-wire (EA3K), lincoln classified as F8A4
For lincoln 880M-flux, and LA90-wire, lincoln classified as F9A6
The second one has more mechanical strength, and more impact resistance,
In your are manufacturing API 5L jointers, or pipes, you will notice that API consider essential variables the following also:
1) change in the filler metal classification,
2) when impact tests are required, a change in the consumable brand name,
6) change in submerged-arc welding flux from one designation to another;
We see that API requirement is more stringent than ASME IX, to solve this problem you need to requalified with the 880 flux.
Sergio Muñoz
IWE-IIW
http://Weld-ING.tk
El domingo, 1 de febrero de 2015, 11:34:07 (UTC-5), Hamid Firoozi escribió:
-- As vanchi wrote it's important to review flux/wire class and the others essential variables
For lincoln 880-flux, and LA90-wire (EA3K), lincoln classified as F8A4
For lincoln 880M-flux, and LA90-wire, lincoln classified as F9A6
The second one has more mechanical strength, and more impact resistance,
In your are manufacturing API 5L jointers, or pipes, you will notice that API consider essential variables the following also:
1) change in the filler metal classification,
2) when impact tests are required, a change in the consumable brand name,
6) change in submerged-arc welding flux from one designation to another;
We see that API requirement is more stringent than ASME IX, to solve this problem you need to requalified with the 880 flux.
Sergio Muñoz
IWE-IIW
http://Weld-ING.tk
El domingo, 1 de febrero de 2015, 11:34:07 (UTC-5), Hamid Firoozi escribió:
SergioImpact is required on -4 31/22 and Wire is EA3KThanks
On Saturday, January 31, 2015 at 11:08:38 AM UTC-6, Sergio Antonio Muñoz Pinzón wrote:Pelase inform what wire are you using, and what construction code, do you have impact requierements?
Sergio Muñoz
IWE-IIW
http://weld-ING.tk
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