Spectrum Inspection Engineering
2761 Saturn Street Unit A, Brea, CA 92821
Tel:714-577-0168, Fax: 714-577-0298
Fitness-For-Service and Advance NDE Inspection for Oil Refinery and Petrochemical Industries
Engineering Service
Critical Allowable
Crack Size Calculation
Assessment of
Local Thin Area
Assessment of
Blister and Lamination
Assessment of Pitting
Assessment of General Corrosion

Fire Damage Assessment
, Failure Analysis
SEM (Scanning Electron Microscope)
Professional Engineers Licensed in Mechanical, Metallurgy and Corrosion Engineering
Finite Element Analysis (
* Repair is recommended for crack above the critical line
NDE Inspection
Multi-Channel AUT, Acoustic Emission

/ Weld Scan and A, B, C scan, Corrosion Mapping
Hydrogen Induce Cracking Inspection (
Hydrogen Blister, SOHIC,Stepwise Cracking,HIC)
Shell Oil Licensed
Hydrogen AttackAUBT Specialist
DOT Design Certified Engineer and Inspector
Turn/Around Inspection Specialist, Pressure Equipment Specialist
Field Microstructure Examination (Replication)
Air Couple UT for Composite material inspection
Concrete Inspection (Impact Echo)
API-510, 570, 653 and CWI Inspection Service  
Danny Wang, P.E.
California Registered Professional Engineer
Fitness-For-Service Specialist
API-510 Pressure Vessel Inspector
Shell Oil Licensed Hydrogen Attack Inspector
DOT Design Certified Engineer and Inspector