No line line that carry Ar to the troch have no influence, except if there is some hole in the line. in this case you can find porosities in the weld.
I think you shall look at folowing points:
-Electrical connection
-Arc regulator
-type of electrode
-grinding way of the electrode
-Magnetisme...
Hi,
if you want an answer, we need more informations on the chemical composition. I mean that Cr% is not enough. for instance, if there are some Mo%, some V% (in plus of C%) the material welding caracteristics can change.
Hi,
I work in offshore industry as a Welding Engineer.
most of the time, Clients ask us to use following standards:
API RP 2A
DNV OS F-101
etc...
But those standards refer to AWS D1.1 ,ASME VIII (for tubing) or to some european standards.
Tell me which kind of structure it is and I'll tell...
TVP,
you are right and I know that, that's why I advise to look at the sthalshlussel because this book give correspondance with each specific grad and chemical composition.
More over, there is an ambiguity when we speeak about DIN EN and DIN. DIN designation is not complitely obsolet because...
ASTM A-36 : st 37-2
ASTM A1011 : ?
ASTM A-572 : st 44-3 / st 44-3 U / st 50-2 / st 50-2 G etc.
ASTM A-992 : ?
ASTM A-53 : st 35.8
ASTM A-29 : ck 45
ASTM A-6 : ?
I have nearly all corespondance but can you give me more details.
the best is to look for the "Sthalshlussel" this is a...
As Weldteck advise you, Chemical composition is important. more over with some exess of componant you can have a material close to case hardening steels.
If you give us the chemical composition, I sure that some on or myself can give you some advise.
Hydroformer is right about GMAW.
I don't like this process for root pass but as this process limite the Hydrogen in the weld it is good for this application. Note that this kind of material is sensible to Cold crack.
note that the proportion of M and Cr is really important for the...
Hi,
arunmaro is right but this reference is for steel.
For casting the reference is ASTM A220 and A602.
the problem with this material is that there is only mechincal performance as requirement. the is a lot of chemical composition possibilities to get this material.
Do you have any...
Cellulosic: xx10 and xx11
Rutil: xx12, xx13 and xx14
Basic: xx15, xx16, xx18
etc..
More over DEANC is right about the "1".
"1" means you can weld on all position, becarful it is not right all the time.
But if you have "2" in lieu of "1", that means you can weld only on flat position and...
every know the formula PV=nRT.
at the first stage, it is right the average of the two ends.
But, that can change if there is:
- temperature variation
- Speed variation
- Pipes dimension variation (bends or ventury parts)
- modification of the nitrogen.
the is no statistics on that. We can have...
this material is a S460G3+M it is usually a thermomecanical structural steel.
Yield strength = 460 Mpa
Tensil strength = 550-700 Mpa
This is a EN 10225 steel
But it is important to have a protective primer coat for protection.
You are not obliged to use an Inconel, but it is an easy way. Also you can do repair with out any PWHT. I imagine you have a high CE. For welding you have to balance HI and pre-heat. In any case you will have a martensitic zone. More over, this kind of material has a high level of Mn that means...
