Page 1 of 2 AL JALHAMI CONT. & Trad. Co. AL KHAFJI, K.S.A QA/QC Welding procedure specification no. QC/WPS/08 Support
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AL JALHAMI CONT. & Trad. Co. AL KHAFJI, K.S.A
QA/QC
Welding procedure specification no. QC/WPS/08 Supporting PQR no. Welding process GTAW+SMAW
ASME IX
CODE:
Date:
WELDING PROCEDURE SPECIFICATION (WPS) Revision no. Revision no. Type(s)
API 1104
BASE METALS (QW-403) P. No. 8 Group no.
0
Date 18/05/2014 Date MANUAL
AWS D1.1
1
to
P. No.
18/05/2014
Others (ASME B31.3,B31.4) 8
Group no.
Specification type and grade
A312, TP316/316L or EQUIVALENT
To specification type and grade
A312, TP316/316L or EQUIVALENT
1
Or Chemical Analysis and Mech. Prop. To Chemical Analysis and Mech. Prop.
Thickness Range: Base Metal Pipe Dia. Range Other
1.5mm – 21.94 mm All
Groove Groove
Fillet Fillet
Unlimited Unlimited
Deposited Weld metal thickness range: GTAW: Max. 8.4mm, SMAW: Max. 13.54mm
JOINTS (QW-402) Joint Design Backing
Single bevel, ‘V’, ‘J’, or ‘U” groove Type
Gas backing
Details
Argon, 99.9%
A
A – 35º ± 2 º B – 10.97 C – 1.5 ± 0.5 D – 3.2 ± 0.8
C
B D
All Dimensions are in mm
FILLER METALS (QW-404) F. No.
GTAW: 6, SMAW: 4
Other
None
Spec No. (SFA) AWS No. (Class) Size of filler metals Electrode flux (class)
A. No.
8
Other
none
GTAW: 5.9, SMAW: 5.4 ER316L / E316-16 GTAW: 2.4mm, SMAW: 2.4mm & 3.2mm N/A N/A
Consumable insert
TECHNICAL APPROVAL Prepared by Al JALHAMI CONT. & TRAD. CO.
Approved by KJO(AGOC/KGOC)
Signature
Signature
Date
Date
Page 2 of 2
AL JALHAMI CONT. & Trad. Co. AL KHAFJI, K.S.A
QA/QC
Date: 18/02/2014 WELDING PROCEDURE SPECIFICATION (WPS) POSITION (QW-405) POST WELD HEAT TREATMENT (QW-407) POSITION(S) or groove All Positions Temperature range None Up
Welding progression position(s) of Fillet
Down
All Positions
PREHEAT (QW-406) Preheat Temp. min. Interpass Temp. max.
10°C 250°C
Preheat maintenamce
N/A
TECHNIQUE (QW-410) String or Weaving Bead
Time range
N/A
Heating rate
N/A
cooling rate
GAS (QW-408) Shielding gas(es) % composition (mixtures)
N/A
Argon 99.9%
Flow rate lp Gas backing 5 10 lpm Trailing shielding gas N/A composition * Gas purging should be done until hot pass is completed
Root: String, Fill/Cap: Weave
Max. weave width
Orifice or Gas Cup Size
3 times of core wire dia.
N/A
Initial And Interpass Cleaning
Brushing and/or Grinding
Method of Back Gouging
N/A
Oscillation
N/A
Contact Tube to Work Distance
N/A
Multiple or Single Pass (Per Side)
Multiple
Multiple or Single Electrodes
Single 90 –120 mm/min
Travel Speed (Range) Peening
N/A
Other
N/A
ELECTRICAL CHARACTERISTICS (QW-409) Current AC or DC DC AMPS (range) 90 to 180 Amps
Polarity Volt(range)
Tungsten electrode size and type
GTAW : EN, SMAW: EP 15 - 35 Volts
2.4 mm, EWTH - 2% Thoriated
Mode of metal transfer for GMAW
N/A
Electrode wire feed speed range
N/A
Filler metal Class Dia. (mm)
Weld Layer
Process
Root
GTAW
ER70S-2
Hot
GTAW
ER70S-2
Fill
SMAW
Cap
SMAW
Current
Volt range
Travel speed (mm/min)
Type
Amp
2.4
DCEN
80-115
15 - 20
90 - 120
2.4
DCEN
95-120
18 - 27
90 - 120
E316-16
3.2
DCEP
90-120
23 - 35
70 - 90
E316-16
2.4
DCEP
70-120
20 - 32
100 -120
Other