LILAMA 45.
1 JOINT STOCK COMPAN
Add:140 Dien Bien Phu Str -1 Dist-Ho Chi Minh Ci
Tel: (84) 8203017-&Fax: (84) 8 8201 455
WELDING PROCEDURE
SPECIFICATION (WPS)
WPS No. : 45.1-31
LILAMA 45.1 Lloyd's Register
TOCK COMPANY
Dist-Ho Chi Minh City
(84) 8 8201 455
RE
S)
oyd's Register
Company Name LILAMA 45.1 CO By
Welding Procedure Specification No. 45.1- 31 Date 22nd May.2003 Supporting PQR N
Revision No 2 Date 15th Feb.2008
Welding Process(es) SAW Type(s) Automatic
(Manual, Machine, Automatic,
Applicable Code ASME Code Section IX (Edition 2007)
JOINTS (QW-402) DETAILS
Joints Design Single Groove
Backing (Yes) Yes (No)
Backing Metal (Type) Weld Metal
(Refer to both backing and retainers)
□ Metal □ Nofusing Metal
□ Nonmetalic □ Other
Sketches,Production Drawings,Weld Symbols,or Written Decription
should show the general arrangement of the parts to be welded.Where
applicable , the root spacing and the details of weld groove may be
specified.
[ At the option of the Manufacturer,sketches may be attached to illustrate
joint design,weld layers,and bead sequence (e.g., for notch toughness
procedures, for multiple process procedures,etc.)]
BASE METALS (QW-403)
P-No. 1 Group No . 2 to P- No. 1
OR
Specification Type and Grade SA516 Gr 70 to Specification Type and Grade
OR
Chem.Analysis and Mech.Prop …………. to Chem.Analysis and Mech.Prop ………….
Thickness Range :
Base Metal: Groove 4.76÷70.0 mm Fillet
Pipe Dia.Range : Groove N/A Fillet
Other Each single pass is less than 12.7 mm thickness
FILLER METAL (QW-404)
Spec.No.(SFA) 5.17
AWS No.(Class) F 7A 2- EM12K-H8
F-No 6
A-No 1
Size of Filler Metals Þ 4.0 mm
Weld Metal
Thickness Range:
Groove 4.76÷76.0 mm
Fillet ALL
Electrode-Flux (Class) F7A2
Flux Trade Name 780
Consumable Insert L61(LINCOLN)
Other N/A
Sheet 1/2
LE MANH HUNG
Supporting PQR No.(s) 45.1- 31
Automatic
(Manual, Machine, Automatic, Semi-Auto)
ection IX (Edition 2007)
DETAILS
Group No . 2
to Specification Type and Grade SA516 Gr 70
to Chem.Analysis and Mech.Prop ………….
1F & 2F
1F & 2F
Each single pass is less than 12.7 mm thickness
WPS No. 45.1- 31 Rev.
POSITIONS (QW-405) POSWELD HEAT TREATMENT (QW-407)
Position(s) of Groove 1G Temperature Range
Welding progression: Up N/A Down N/A Time Range
Position)s) of Fillet 1F & 2F
GAS (QW-408)
PREHEAT (QW-406) Percent Composition
Preheat Temp, Minimum Min.400C Gas(es)
Interpass Temp, Maximum Max.2500C Shielding N/A
Preheat Maintenance Flame when required Trailing N/A
(When 1 1/4" < T< 1 1/2" , Preheat at 2000F (minimum) Backing N/A
ELECTRICAL CHARACTERISTICS (QW-409)
Current AC or DC DC Polarity EP
Amps (Range) See Table Volts (Range)
(Amps and volts range shoulad be recorded for each electrodessize, position, and
thickness, etc ,.This informatiion may be listed in a tabular from similar to that show below.)
Tungsten Electrode and Type N/A
(Pure Tungsten .2% Thoriated,etc.)
Mode of Metal Transfer for GMAW N/A
(Spray Arc ,Short Circuiting Arc .etc.)
Electrode Wire Feed Speed Range N/A
TECHNIQUE (QW-410)
String or Weave Bead String
Orifice or Gas Cup Size N/A
Initial and Interpass Cleaning (Brushing,Grinding,etc.) Brushing and Grinding
Method of Backing Gouging Arc Air Gouging & Grinding
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) See Table
Peening None
Other N/A
Filler Metal Current Volts
Weld
Layers Process
Class Dia.(mm) Polarity Amp.(A) Range(V)
1st SAW F7A2 Þ 4.0 DCEP 420-540 26-28
2nd SAW F7A2 Þ 4.0 DCEP 460-580 28-30
3rd SAW F7A2 Þ 4.0 DCEP 460-580 28-30
Nth SAW F7A2 Þ 4.0 DCEP 460-580 28-30
After Back Gouging &Grinding
R1 SAW F7A2 Þ 4.0 DCEP 420-540 26-28
Rn SAW F7A2 Þ 4.0 DCEP 460-580 28-30
2 Sheet 2/2
407)
N/A
N/A
ent Composition
(Mixture) Flow Rate
N/A N/A
N/A N/A
N/A N/A
EP
See Table
Trave
Speed Remarks
(cm/min)
40-50
40-50
40-50
40-50
40-50
40-50
