Page 1 of 2 AL JALHAMI CONT. & Trad. Co. AL KHAFJI, K.S.A Dat e: WELDING PROCEDURE SPECIFICATION (WPS) QA/QC Welding
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AL JALHAMI CONT. & Trad. Co. AL KHAFJI, K.S.A
Dat e:
WELDING PROCEDURE SPECIFICATION (WPS)
QA/QC Welding procedure specification no. QC/WPS/08 Supporting PQR no. Welding process GTAW+SMAW
CODE:
ASME IX
Revision no. Revision no. Type(s)
API 1104
BASE METALS (QW-403) P. No. 1 Group no.
1&2
0
Date 18/05/2014 Date MANUAL
AWS D1.1 to
P. No.
18/05/2014
Others (ASME B31.3,B31.4) 1
Group no.
Specification type and grade
ASTM A53 Gr, B or EQUIVALENT
To specification type and grade
ASTM A53 Gr, B or EQUIVALENT
1&2
Or Chemical Analysis and Mech. Prop. To Chemical Analysis and Mech. Prop.
Thickness Range: Base Metal Pipe Dia. Range
Groove Groove
1.5mm – 18.54 mm All
Fillet Fillet
Unlimited Unlimited
Other JOINTS (QW-402) Joint Design Backing
‘v’Groove Type
none
N/A
Details
A -1.2mm B – 3.2mm
FILLER METALS (QW-404) GTAW: 6, SMAW: 4 F. No.
Other
None
Spec No. (SFA) AWS No. (Class) Size of filler metals Electrode flux (class) Consumable insert
A. No.
1
Other
none
GTAW: 5.18, SMAW: 5.1 ER70S-2 / E7018 GTAW: 2.4mm, SMAW: 2.5mm & 3.2mm N/A N/A
TECHNICAL APPROVAL Prepared by Al JALHAMI CONT. & TRAD. CO. Signature
Approved by KJO(AGOC/KGOC) Signature
Date
Date Page 2 of 2
AL JALHAMI CONT. & Trad. Co. AL KHAFJI, K.S.A
Date :
WELDING PROCEDURE SPECIFICATION (WPS)
QA/QC POSITION (QW-405) POSITION(S) or groove
All Positions (6G) Up
Welding progression position(s) of Fillet
Down
All Positions
PREHEAT (QW-406) Preheat Temp. min. Interpass Temp. max.
21°C 250°C
Preheat maintenamce
N/A
TECHNIQUE (QW-410) String or Weaving Bead
18/02/2014
POST WELD HEAT TREATMENT (QW-407) Temperature range None Time range
N/A
Heating rate
N/A
cooling rate
GAS (QW-408) Shielding gas(es) % composition (mixtures) Flow rate Gas backing Trailing shielding gas composition
Root: String, Fill/Cap: Weave
Argon 99.9% 10 15 lpm N/A N/A
Max. weave width
Orifice or Gas Cup Size
N/A
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
Travel Speed (Range)
120 – 275 mm/min
Peening
N/A
Other
N/A
ELECTRICAL CHARACTERISTICS (QW-409) Current AC or DC DC AMPS (range) 80 to 120 Amps
Polarity Volt(range)
Tungsten electrode size and type Mode of metal transfer for GMAW
2.4 mm, EWTH - 2% Thoriated 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
GTAW : EN, SMAW: EP 8-35 Volts
Current
Volt range
Travel speed (mm/min)
Type
Amp
2.4
DCEN
80-115
8-20
120-200
2.4
DCEN
95-120
10-27
150-275
Other
Fill
SMAW
E7018
2.5
DCEP
90-120
23-35
150-275
Cap
SMAW
E7018
3.2
DCEP
70-120
20-32
150-275