Welding Inspection
Quality Welds. Verified. Protected.
Common Welding Defects
Know the defects. Ensure quality. Prevent failure.
Porosity
Gas pockets in weld metal.
Cracks
Fractures in weld metal.
Undercut
Groove in base metal along the weld toe.
Slag Inclusion
Trapped slag in weld metal.
Lack of Fusion
Incomplete fusion between weld metal and base metal.
Spatter
Excess metal spatter on or around the weld.
Key Actions
Spot It
Early detection prevents costly rework.
Fix It
Correct causes to ensure strong, reliable welds.
Trust It
Quality welds protect people, property, and performance.
Inspection Checklist for Connection Welding
A structured inspection approach to ensure welding quality, structural integrity and long-term coating performance.
Pre-Welding Preparation
- WPS approved
- Material clean & free of contamination
- Joint fit-up correct
- Welder qualified & certified
- Preheat verified
- Joint alignment within tolerance
- Tack welds inspected
- Root opening verified
- Joint root face consistent
During-Welding Process
- Welding parameters per WPS
- Inter-pass temperature controlled
- Cleanliness between passes
- Weld progression as per procedure
- Shielding gas flow adequate
- Electrode storage proper
- Weld sequence followed
- Slag removed
Post-Welding Inspection
- Weld size & profile meets requirements
- No visible cracks or lack of fusion
- Undercut within limits
- No excessive porosity
- Surface finish acceptable
- Dimensional accuracy
- Non-destructive testing planned
- Final cleaning completed
Aligned with ISO Standards: Aligned with ISO 3834, EN 1090 and other relevant standards — applied consistently for every weld, every time.
Focused on Quality: Strong welds mean stronger connections, better durability, and longer asset life.
WPS vs PQR
WPS defines how welding is to be done. PQR proves it works. Together, they ensure every weld is safe, reliable, and code-compliant.
WPS — Welding Procedure Specification
WPS = Plan / Instruction
The recipe for a quality weld.
Instruction Manual for Welder — HOW TO WELD
- Welding Process
- Material & Thickness
- Filler Metal Type
- Welding Positions
- Preheat Temp
- Welding Parameters (Amps, Volts, Travel Speed, etc.)
PQR — Procedure Qualification Record
PQR = Proven Results
The evidence that the recipe works.
Proof WPS Produces Sound Welds
- Test Coupon Welded
- Tensile & Bend Tests
- NDT Results (RT/UT)
- Base & Filler Material Used
PQR Qualifies WPS
Need welding inspection?
Our CSWIP-qualified inspectors bring decades of hands-on fabrication experience.