Thanks Weldstan, is much better this filler metal for %C is 0,12 but if necesary make new one PQR with this filler metal. i have wps with filler metal ER80S-B2L is so old have 15 years.
Thanks to all
guys
The super heater tube working high temp. around 320 a 424°C is a necessary make pwth after construccion weding process? i think is not necessary.
Thanks for you helps.
IS A WELDING FOR SUPERHEATER PIPE (WE MAKE REPLACE OF PIPE AND OUR WPS FOR A WELDING P1 WITH P4 THE FILLER METAL IS ER80S-BL2 IF A METAL BASE SA 213 T22 HAVE 1/2% CR AN 1/2% MO THE FILLER METAL MUST BE CONTAIN BETWEEN 1 OR 1 1/2% CR AND MO IS MY APRECIATION FOR EQUALIZATION FOR CHEMICAL COMPOSITION.
Hi to all
i have a question about selection of filler metal, SA213 T22 AND SA 192
1 OPTION ER80S-BL2
2 OPTION ER70S-BL2
3 OPTION ER70S-2
WHAT IS THE BEST FILLER METAL FOR A GOOD WELD?
THANKS FOR YOUR HELP...
I dont have any wastage corrosion i see only this mild sandblasting in some areas, is ubicated in the principal area for combustion gas circulation. the condition and coloration tubes surface looks like good but i see only abrasivity conditions.
sa 213 t22 but, now i have sa 192 seamless we need start soon as possible. i know is not a good material for this conditions. is possible operated 5 months??
thanks for you reply.
the design temperature gave me the design engineer other conditions it is that the combustion gases are very abrasive due to bagasse ash is not completely burned and in some cases the diesel contains more than 3% of sulfur.
during the inspection I could see a lot of...
Hi to All
I have a question about selection carbon steel for super heater bagasse boiler i have ASTM A192 2" i can use this material?
temp desing: 470 °C
tem operation 380°C
Desing pressure: 375 Psig
Operation presure: 250 Psig
thanks for your helps.
Temperature of service 0<T≤93 °C – –
NACE 1/SSPC–SP 5 1,5–2,0
Epoxy Fenólic HB 6,0 mils
Epoxy Fenólic HB 6,0 mils
thickness 12 mils.
We used this internal standard in PDVSA Venezuela.
Regards,
thanks for you reply
I cannot change the vessel for stainless steel this is a old mills but i need to try solve the small problem, maybe in the future can change the vessel. the material of vessel is a carbon steel ASTM A36.
hi to all
I have a question about that coating can be used for a clarifier tank of juice ( sugar mill ) ( fluid clarified juice ) (water , sugar, solid elements ) this fluid contains many suspended solids and usually the temperature is between 70 and 95 ° C is a food grade fluid so I wonder if...
hello friend moltenmetal
the topic under discussion is on the ferrite content in different areas of welding, once the metallography is made and detect the fault MUST weld again.
the nitrogen is vital in the stabilization of austenite during welding duplex stainless steels , why should not...
hi all,
I had a similar experience with duplex stainless steels, after analyzing the base material, the heat affected zone and the filler with hundreds of tests it was determined that the problem of high ferrite content lies in the heat imput , gas protection and backup gas .
Please check this...
If the surface preparation is SSPC- SP 5 is not needed anything, just that when you withdraw the tape you should do when the paint cure touch to prevent loosening of the applied paint .
My other question is : is it just this area which will be painted with this product? Are other nearby areas...