EQT - Welding Electrode Qualification Testing
- PURPOSE :
- This Procedure covers the requirement to carry out the necessary tests for the qualification of electrodes.
- SCOPE:
- This scope covers the qualification test requirements for the electrodes to be used for the project.
- REFERENCES:
- API 1104 Latest Edition.
- ASME Sec II Part C
- Customer doc. : JOB PROCEDURE FOR ELECTRODE QUALIFICATION TEST.
- EQUIPMENT:
- ➢ Welding Machine
- ➢ Consumables
- ➢ Clamp meter
- ➢ Tong Tester
- ➢ Pyrometer
- ➢ Welding Electrodes
- ➢ Stop Watch
- METHODOLOGY:
- Details of Process for Groove Weld:
- * All electrodes shall be purchased in shield, containers and store properly to prevent deterioration. Different grades of electrodes shall be stored separately. The electrodes used shall be free from rust, oil, grease and other foreign matter which affect the quality of welding.
- * Before starting the welding, the surface of base metal to be welded shall be cleaned and pre-heated. Pre-heat temperature shall be 130o C to 175 degree celsius to be maintained. Minimum length test assembly shall be welded.
- Prior to welding, The assembly shall be preset to yield a welded joint sufficiently flats to facilitate removal of the test specimen, as an alternative, restraint or a combination of restraint and presetting shall be used to keep the welded with in edge of plane. A welded test assembly that is more that 50 out of plane shall be discarded.
- * Welding shall be in flat position using each type of current specified. But if DCEP and DCEN to be used, and then only DCEN needs to be tested. The joint root shall be seal welded with the electrodes using stringer beads. In addition to the stops and starts at the ends, each pass shall contain a stop and start in between the ends.
- * The completed welds shall be at least flush with the surface of the test plate. The weld passes per layer and total no. of layers shall carried out as ASME SEC-II PART-C Latest Revision. Submit batch test certificates from the electrode manufacturer.
- ELECTRODE DETAILS : Details of process and requirement for electrode :
- HEALTH SAFETY AND ENVIRONMENT:
- * The provided procedure for Health, Safety, & Environment shall be followed during execution. Hazard identification & risk assessment will be carried out & operational control measures shall be adopted during preparing the test pieces for electrode qualification test.
- ➢ It is to be noted that the special care to be adopted against snake / insects bite.
- ➢ Safety Shoe, Helmet and nose mask is a must in this activity.
- ➢ Fire protection system shall be provided & handled carefully.
- ➢ Only trained personnel to be deployed for this activity.
- ➢ All Measuring & Test Equipment’s used must be well maintained.
- ➢ All lifting devices & Tools used shall be well maintained and approved by a competent authority.
- QUALITY ASSURANCE & QUALITY CONTROL:
- *Quality Assurance shall be maintained by ensuring the systematic implementation of this procedure and ensure that necessary quality records are generated as appended to this procedure.
- TEST TO BE CONDUCTED :
- ➢CHEMICAL ANALYSIS
- ➢TENSION TEST
- ➢IMPACT TEST
- ➢RADIOGRAPHY TEST
- ➢BEND TEST
- ➢Final - EQT Report
- Metal Testing (chemical Analysis-wet)
- Spectro Analysis (Metal Testing- Spectro)
- Ores Testing
- Ferro Alloy Testing
- Minerals Testing
- Minerals and Ores Testing
- Mechanical Testings
- Impact Testing
- Hardness Testing
- Microstructure
- PMI Testing
- Coating Thickness Testing
- Salt Spray Testing
- corrosion Testing
- Intergranular Corrosion Testing
- Stress Rupture Testing
- Fatigue & Fracture Toughness
- welder Qualification Testing
- Welding Electrode Qualification
- EQT Services
- Electrical Testing
- Failure Analysis
- Surface Coating Test
- XRF Testing
- In-situ Metallography
- Heat Exchanger Tube Inspection
- RLA Testing
- Borescope Testing
- Borescope Inspection Services
- Replica Testing
- SEM -EDS Analysis
- Metallurgical Testing
- Microstructure Defect Analysis Testing
- Microstructure Heat Treatment Analysis Testing
- Electrical Conductivity Testing
- Thermal Conductivity Testing
- Compression Testing
- Bending Testing
- Flexural Strength Testing
- Formability Testing
- Micro-Cleanliness Testing
- Salt Spray Corrosion Testing
- Plating Thickness Testing
- Density. Porosity Testing
- Stress Corrosion Cracking (SCC) Testing
- Environmental Stress Cracking (ESC) Testing
- Toughness Testing
- Melting Temperature Testing
- Dezincification. Coating Thickness by XRF Testing
- SEM Testing
- Cross Section Testing
- Fractography Testing
- Surface Analysis Testing
- Ductility Testing
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- Microstructure Testing
- Mechanical Properties Testing
- Machining Evaluation Testing
- Plating Evaluation Testing
- Impurity Inclusions Testing
- Tensile Testing
- Optical Emission Spectrography (OES) Testing
- Inductively Coupled Plasma (ICP) Testing
- Photomicrographic examination Testing
- Scanning Electron Microscopy Testing
- Specimen Preparation Testing
- Non-Destructive NDT Testing Testing
- Ultrasonic Testing
- Hydrostatic Pressure Testing
- Bearing Strength Testing
- Magnetic Particle Testing
- Liquid Penetration Testing
- X-Ray Inspection Testing
- Visual Inspection Testing
- Wear Resistance Testing
- Weld Failure Testing
- Plating Defects Testing
- Coating Defects Testing
- Microstructural Defects Testing
- Contaminant Investigations Testing
- Reverse Engineering Testing
- Ultrasonic Inspection (UT) Testing
- Magnetic Particle Inspection (MT) Testing
- Liquid Penetrant Inspection (PT). Weld Integrity Testing
- Weld Failure Testing
- Heat Affected Zone (HAZ) micro-hardness Testing
- Chemical Analysis Testing
- Glow Discharge Spectroscopy (GDS - Bulk Analysis) Testing
- Energy Dispersive Spectroscopy (EDS - Micro Analysis) Testing
- Non Destructive Testing
- Ndt Services
- Ultrasonic Testing
- Magnetic Particle Testing
- Dye Penetrant Testing
- Radiographic Testing
- Eddy Current Testing
- Vibration Analysis
- PAUT - TOFT
- Ultrasonic Thickness Gauging Testing
- Helium leak detection Services
- RFET / NFET / PECT Testing
- Internal Rotary Inspection system (IRIS)
- Acoustic Pulse Reflectometry (APR)
- Positive Material Identification Testing
- Magnetic flux leakage (MFL)
- Acoustic emission Testing
- Flouresent Leak Detection
- Long range ultrasonic testing - LRUT
- Thermography Inspection Services
- Leak Testing
- TKY Joints Ultrasonic Testing
- AWS D1.1 Structural steel ultrasonic Testing
METALLURGICAL TESTING SERVICES
NDT TESTING SERVICES (NON DESTRUCTIVE TESTING SERVICES)
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