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WELDING PROCEDURE SPECIFICATION SPECIFICATION(W.P.S) (W.P.S) Doc No: BK5TQ4 248 093 Company Name
ALSTOM INDIA LIMITED
Welding Procedure Specification no:
EB0-002991/WPS/002
Date :
15/7/2013
0
Revision No
EB0-002991/PQR/002
Supporting P.Q.R No (s) Welding Process
MANUAL
Type(s)
SMAW
(Automatic, Manual, Machine, Semi Auto)
JOINTS(QW-402)
DETAILS Fillet Weld
Joint Design
Backing (Yes/No)
NO
Backing Material(Type)
N /A
BASE METALS(QW-403) 1
P.No:
1
Group No
OR Specification type & grade
to P. No
1
Group No
IS 2062
To Specification type & grade
IS 2062
Thickness Range Base Metal
4.0 MM TO 10.0 MM
GROOVE
Single "V"
GROOVE
Single "V"
Deposited Weld Metal Thk. Range
3 MM TO 9 MM
FILLER METALS(QW-404) Specification No (SFA)
5.1
AWS No ( Class )
E 6013 (FILL UP)
F. No
2
A. No
1
Size of Filler Metal
Dia 2.5 MM, 3.15 MM
Electrode - Flux(Class)
-
-
Flux Trade Name
-
-
Consumable inert
-
-
1
EB0-002991/WPS/002 Positions of Groove(QW-405)
POSTWELD HEAT TREATMENT(QW-407)
Positions of Groove
6G (All Positions)
Heating Temp :
N/A
Welding Progression
UP HILL
Soaking period :
N/A
Cooling Temp :
N/A
PREHEAT(QW-406)
GAS (QW-408)
Preheat Temp Min.
------
Interpass Temp Max.
Gas(es)
200 Deg C
Mixture
Flow rate
Shielding
….
….
…..
Backing
---
---
---
ELECTRICAL CHARACTERISTICS (QW-409) Current (AC/DC)
DC
Polarity
Straight/Reverse
Amps (Range)
60 - 180
Volts ( Range )
70 O.C.V
Tungsten electrode Size & Type
(Pure Tungsten 2 % Thoriated)
N/A
TECHNIQUE (QW-410) Clean the Weld areas and adjacent areas of oil , grease, rust etc. Assemble components as per contract drawing. Tack weld by SMAW Process ensuring that the tacks become an acceptable part o f the root run. Complete root run by SMAW Process. Complete welding to the required dimension by SMAW process using specified electrodes. Dress slightly high spot obtain a good profile. Carry out DP to test the weld soundness. String or Weave Bead
