wps smaw dantata & sawoe 30000 ltrs on 16m tower. 1doc
DESCRIPTION
This document describes the procedures to be followed and parameters required to successfully carry our welding on storage tank on towerTRANSCRIPT
Welding procedure specification
WELDING PROCEDURE SPECIFICATION
PROJECT : FABRICATION & ERECTION OF 30,000 LITRES ON 16M TOWER
PROCEDURE NO: WPS - 008SUPPORTING PQR N O :
CLIENT: DANTATA & SAWOELOCATION : KADUNA
CONTRACTOR: AREWA METAL CONTAINER (ARMECO) LTD.
CODES / APPLICABLE STANDARDS : ISO 15614-1
MATERIAL SPECIFICATION: ASTM A 36 (GRADE 43A)
JOINT DESIGN :SQUARE GROOVE BUTT JOINT WITHOUT BACKING
WELDING PROCESS : SHIELDED METAL ARC WELDING (SMAW)
ELECTRODE CLASSIFICATION: E6013 (AWS A5.1)
WELDING PROCEDURECOMPLETE JOINT PENETRATION GROOVE WELD
TEST METAL THICKNESS5MM
THICKNESS RANGE QUALIFIED: 2.5MM 6.5MM
WELD SEQUENCE ELECTRODE MANUFACTURER / SIZEDIAMETERAMPERAGEARC VOLTAGE
SINGLE PASSOERLIKON 350MM3.25MM100-140A22-28V
HOT PASS / SECOND PASSN/AN/AN/AN/A
OTHER PASSES / CAPPINGN/AN/AN/AN/A
OTHER ELECTRICAL CHARACTERISTICS CURRENT: 3 PHASE AC TRANSFER MODE: METAL ARC
WELDING POSITION FLAT, HORIZONTAL, VERTICAL, (1G,2G,3G)
VERTICAL PROGRESSION DOWN
TIME LAPSE BETWEEN END OF ROOT RUN AND START OF SECOND PASSN/A
TIME LAPSE BETWEEN END OF SECOND PASS AND START OF OTHER PASSESN/A
MAXIMUM TIME BETWEEN COMMENCEMENT AND COMPLETION OF WELD N/A
TYPE OF LINE UP CLAMP : NONE
REMOVAL OF LINE UP : N/A
CLEANING : WIRE BRUSHING
MINIMUM PRE-HEAT TEMPERATURENONE
TYPE OF HEATER TO BE USED N/A
MAXIMUM INTER-PASS TEMPERATURE: N/A
STRESS RELIEF PEENING
SHIELDING GAS N/ A
SPEED OF TRAVEL 78MM/MN
TEST ASSESSMENT: VISUAL, PENETRANT TEST & TENSILE TEST.
PREPARED BY HQA/QCCHECKED BYGM GENERAL SERVICESAPPROVED BYGM OPERATIONS
NAME :NAME:NAME :
SIGNATURE SIGNATURE:SIGNATURE :
DATE:DATE:DATE: