I am developing PQR for piping.Impact test is required per B31.3.cupon (A333 Gr 6 to A350 LF2)thickness is 32 mm and will be welded by GTAW(8mm)+SMAW(8mm)+SAW(16mm).
Do I need to carry HAZ impact for each process.
If yes, where i will find reference of this in code.For weld I know each impact...
Can anybody suggest welding consumables for GTAW, SMAW & SAW process for welding of A694 F65 to itself and A694 F70 to itself.thickness is 32 mm and PWHT is required per B31.3 code.
Service is SOUR so Ni% in weld consumables is required below 1%.
Please suggest??
I have one open enquiry where in a spool design and fabrication is required as per ASME B31.8
Customer piping class has flange MOC as A694 F65 for forging and size is 36"x 1500#.This size & rating is out of scope of B16.5....so we r using sec VIII Div I code to design these special flange...
I have to weld C45 material with A106 Gr B pipe.Design code is B31.3.since no P number assign to C45 per sec IX,my existing P1 to P1 qualification will not suffice.
C45 material is 50 mm thick and will be welded to 12.7 thick A106GRB pipe by fillet weld.
I am chosing E7018-1 electrode for...
I have a 1.5" sch 160 (7.16 mm) pipe to Flange weld joint, external re-reinforcement is 1.5 mm & inter weld protrusion is flush with ID.
Customer specification is asking to use EN 462-1 wire type IQT with 2% minimum sensitivity.However RT is to be done as per ASME sec V.
I tried X-Ray with...
Customer is asking us to provide 3.2 certificate for Inconel filler wire which is 0.8 mm in diameter.currently it is only 3.1 certified and customer is willing to accept it under upgradation from reputed TPI.
Do i need to weld a test cupon with above inconel filler wire or simply send the wires...
I reviewed Scope of NORSOK M650 which does not calls out NORSOK certification for austenitic stainless steel. However our customer is insisting us to have F316 Forging from NORSOK approved supplier.
Customer spec is generic for A182 which states that norsok certificate (if applicable), I...
We have a PQR qualified per ASME sec IX with additional test to meet PED requirements in 2009.The test and PQR are approved by Reputed Notified Body from UK.Unfortunately the notified body number is not stamped on PQR document. Is it mandetory to have N.B.number on PQR document?
we will be using...
In ASME Sec IX -Ed 2013 Table QW-451.4, I can see that general note added as "supplementary essential variables apply when notch toughness is required by other sections"
Does this mean that base material thickness for fillet weld shall be as per QW 403.6 when toughness test is required?
As per A672 specification, weld deposit shall match WPS chemistry.
Does this mean that chemical composition of weld metal of 672 shall match "A" of its applicable WPS which is chemical composition.
For example for A672 C70 CL 12 pipe, weld chemistry matching to A number 1
Is my above...
Customer specification demands no banding of ferrite / pearlite & microstructure shall be homogenous as service is sour. Plate is A516 gr 60
We purchased a plate which is HIC resistant per TM 0284 but final statement in MTC does specify that banding of pearlite in ferrite matrix.we missed this...
We had fabricated a piping spool according to b31.3 code. Header A358 316L & size was36"x 8 mm with a pair of 2" ss latrolet welded 180 apart in set on condition.
While keeping the latrolet alignment during welding they bulge inside pipe id by 5 and 7 mm.we used jacks from inside of pipe to...
We are building small piping components as per B31.3 usually all are under 10" and smaller.In each of the piping component 1.5" reinforced LWN nozzles are required at 45deg inclination with set on design.customer drawing calls complete root flushing for nozzle.
the piping drawing calls inside...
I have ordered first time API 5L Gr B pipe with requirement as DSAW. I did not specified the limit of no of long seams on purchase order.Supplier has supplied a pipe with two long seams.
customer drawing show only one long seam on his detailed piping.
Can I reject this pipe as it has two long...
We have to repair monel casting M35-1 (ASTM A494)UNS No. N24135 by GTAW process. can anybody suggest suitable filler wire & precautions during & post welding.
Hi,
I want to qualify a super Duplex PQR in UNS S32760 grade material, Currently I am using mock up piece of 3" sch 80 UNS 32760 & welding with GTAW process with ER2594 filler wire having shielding & backing gas as Ar+2% N2.
I am getting ferrite of 46% in root pass & 36% in hot pass, in...
We had done 3" branch weld in A182 F304 material on header of 30" (A358 304)per B31.3. the inside weld penetration was flush grind with Branch ID per customer requirement.
As per customer drawing 100% LPI was specified for branch weld.
We have performed LPI from outside weld & it passed...
We are working on an assignment wherein stelliting 6 is required on Inconel pipe N 06625
The process used is GTAW, we are trying with below parameters but obeserving cracks on weld.
preheat: 275 deg C
Interpass: 300 deg C
cooling: wrapping in asbestos blanket.
Need an expert view to get the...
My welder has welded a test coupon for PQR in Duplex (UNS S31803) of 30 mm thickness with double welding .The electrode used was E2209-15 of dia 3.2 mm, the ferrite reported on MTC of electrode is 36%. I did not measured ferrite content during & post welding in weld, the coupon was subsequently...
My welder has welded a PQR cupon of Duplex (UNS S31803) on 30 mm thick plate by GTAW +SMAW process, the electrode used was of E2209-15 having Ferrite value as 36 in MTC.
Heat input used during welding was from 0.80-1.00kJ/mm. I did not checked the ferrite in as welded condition. Cupon was...
