Alphabetical Index
Keyword Search

Casting Defects
Ingot Defects
Slab Defects

Drawing Defects
Forging Defects
Rolling Defects

Bearing Defects
Coating Defects
Corrosion Defects
Fractography
Heat Treatment Defects
Machining Defects
Other Defects
Pipeline Defects
Polishing Defects
Rail Defects
Tool Steel Defects
Welding Defects

Internal Defects
New Records
Surface Defects

Contact Us
Help
Home

Cold crack - Welding defects


Figure 1: Cold crack or weld metal, hydrogen crack.

Defect name: Cold crack
Record No.: 914
Type of defect (Internal/Surface): Internal
Defect classification: Welding defects
Steel name: Steel
Steel composition in weight %: No data.
Note:  
Definition: A crack that occurs after the metal has completely solidified.
Cause: Shrinkage, highly restrained welds, discontinuities.
Prevention: Preheat, weld toward areas of less constraint, use a more ductile weld metal.
Repair: Remove and reweld, correct problem first, preheat may be necessary.
Reference: Not shown in this demonstration version.