CLUSTER POROSITY

INCOMPLETE PENETRATION OR LACK OF PENETRATION

INCOMPLETE FUSION

SLAG INCLUSION

POROSITY

COLD LAP

INTERNAL CONCAVITY OR SUCK BACK

INTERNAL OR ROOT UNDERCUT

EXTERNAL OR CROWN UNDERCUT

OFFSET OR MISMATCH

INADEQUATE WELD REINFORCEMENT

EXCESS WELD REINFORCEMENT

CRACK

TUNGSTEN INCLUSIONS

OXIDE INCLUSIONS

BURN-THROUGH

ASMEC VASMEC SECTION V ASME Section V states

that the radiation energy

used shall achieve the density and IQI image

requirements given in ASME Section V Article 2

SLAG INCLUSIONS

ELONGATED SLAG INCLUSIONS(ESIs)

ISOLATED SLAG INCLUSIONS(ISIs)

A Continuous or broken slag lines or wagon tracks –are usually found at the fusion zone.

The aggregate length of ESI indications in any continuous (300mm)length of weld exceeds (50mm)shall be considered as a defect.

The width of an ESI indication exceeds (1.6mm).shall be considered as a defect.

Are irregularly shaped and may be located anywhere in the weld.

The aggregate length of ISI indication in any continuous (300mm)length of weld exceeds (13mm).Shall be considered as a defect.

The width of ISI indications exceeds (3mm).shall be considered as a defect.