WELDING PROCEDURE SPECIFICATION (WPS)

WPS No. REV

AAI/API1104/WPS-006/IV/2023
PQR No. A Page 1 of 1
AAI/API1104/PQR-006/IV/2023

Contractor: Date : Code Proses : Type : Joint Design : (5.3.2.4)

(5.3.2.1)
06-Apr-23 API std 1104, 22nd Edition-2021 Manual Single V Groove
GTAW & SMAW
PT. ATLANTIC ALAM INDUSTRI Welding Category : MAIN & TIE IN
WELDING APL 5L GR X60 WITH CLAD SS 316 L
Joint Design (5.3.2.4) No of Welders
1
A Material Specification
T1
A
Material A API 5L GR X 60
T2 B 1.2 - 2.4 mm
B Material B CLAD SS 316L
Material Qualification (5.3.2.2)
1.6 - 3.5 mm
SMYS <60.200 (415 Mpa)
CAP
Thickness Qualification (5.3.2.3)
0.154 in (3.9 mm) < T < 1.048 in (26.62 mm)
T1 A FILL A Diameter Qualification (5.3.2.3)
HOT
T2 B ROOT
B All Range Diameter
T1 = 10.312 mm T2 = 3 mm Line Up Clamp Type (5.3.2.11)
Note: Maximum high/low misalignment is 3 mm External Clamp & Tack Weld
Filler Material (5.3.2.5) Position (5.3.2.8) Weld Progression (5.3.2.9)
Parameter Root Pass Hot Pass Filler Filler/Cap Fixed Vertical Up
AWS Spec A 5.9 A 5.9 A 5.4 A 5.4 Temperature, oC (5.3.2.13)
AWS Class ER 309L Mo ER 309L Mo E 309Mol-16 E 309Mol-16 Min Preheat, C o
Max Inter pass, oC
Group No - - - - N/A 150
Diameter 2.4 mm 2.4 mm 3.2- 4.0 mm 3.2- 4.0 mm Pass Time Lapse (5.3.2.10) Initial and Interpass Cleaning
Time between root pass and hot pass Non Ferrous Power Grind & Power
Manufacture Metrode/Lincoln / Kobe / Hobart / Daiko / Equivalent
Max. 10 minutes Brush
Shielding Gas (5.3.2.14) Electrical Characteristics
Shielding Backing Polarity DCEN for GTAW & DCEP for SMAW
Type Mixture Flow Rate, L/min Type Mixture Flow Rate, L/min Tungsten
Electrode 2.4 mm dia, EWTh-2
Argon 99.999% 12-15 Argon 99.999% 10-15
Size & Type
Welding Parameter
Electrode Current & Polarity (5.3.2.6) Travel Speed
Direction of
Weld Pass Process (5.3.2.16) Bead Type Heat Input (KJ/mm)
Class Dia (mm) Polarity Amperage Volt welding
(mm/min)
Root Pass GTAW ER 309L Mo 2,4 DCEN 79 - 99 10 - 14 68 - 84 Vertical Up String 0,54 - 1,22
Hot Pass GTAW ER 309L Mo 2,4 DCEN 86 - 112 11 -15 74 - 90 Vertical Up String 0,63 - 1,36
Filler 1 GTAW ER 309L Mo 2,4 DCEN 88 - 112 11-15 75 - 95 Vertical Up String 0,61 - 1.34
Filler n SMAW E 309Mol-16 3.2 - 4.0 DCEP 88 - 123 20 - 28 81 - 121 Vertical Up Weave 0,87 - 2,38
Capping SMAW E 309Mol-16 3.2 - 4.0 DCEP 83 - 114 20 - 29 85 - 122 Vertical Up Weave 0,81 - 2,33
Notes :

1. Minimum tack weld length shall be 2T

2. External Clamp may be removed when 50% of the root pass bead, equally spaced in four quardants around the weld joint.
3. Maximum weave width shall be limited to 2.5 x electrode diameter
4. Preheat to 50°C minimum where moisture is present
5. Back Purge gas shall be maintained for the first two (2) layers as a minimum. Oxygen content shall be less than 2% as measured by an oxygen analyser
6. For production welds using this WPS, a minimum of 2 passes must be fully completed prior to movement of pipe can take place
7. All welding comsumables shall conform to ASME Sec-II part C and Storage & handling of welding consumables shall be in accordance with the manufacturer’s recommendations.
8. Inspection surveillance activities will be conducted to confirm qualified and approved parameter ranges are applied during production welding
9. Back Purge gas shall be maintained for the first two (2) layers as a minimum. Oxygen content shall be less than 2% as measured by an oxygen analyser
10. A change in the size of the filler metal ± 0.8mm is allowed
11. The minimum values for the travel speed ranges have been calculated using the respective maximum values for voltage, current and heat input as shown above. Conversely, the maximum
values for the travel speed ranges have been calculated using the respective minimum values for voltage, current and heat input.
12. Completed weld shall not be exposed to accelerated cooling. Cool completed weld in still air.
13. NDT to be completed in accordance with API 1104 (2021) Clause. 9

Prepared / Authorized By, Appoved and Certified By,

PT. ATLANTIC ALAM INDUSTRI MIGAS

NAME : MAXWELL NAME :

WELDING ENGINEER (ID/001/IWE-0188) TITLE: