BIS-certified asset integrity engineering
BIS-compliant non-destructive testing and structural validation for industrial pressure equipment
Non-destructive wall integrity assessment. Our ultrasonic thickness gauging service uses advanced phased-array probes to map wall loss across aging storage tanks. We identify localized corrosion, general thinning, and laminations without disrupting operations. The inspection covers shell courses, roof plates, and bottom annular rings, with data reported in accordance with BIS 2825 code. A detailed corrosion rate analysis and remaining life estimate are included in the final certificate.
Finite element analysis and field verification. We perform structural load validation on high-pressure steam headers using a combination of finite element analysis and field strain gauge measurements. The assessment accounts for thermal expansion, pressure cycling, and support settlement. Our engineers verify that the header design meets BIS 8007 and ASME B31.1 requirements. The deliverable includes a validated load model, stress contour plots, and a signed integrity certificate.
Fracture mechanics and fatigue life prediction. Our crack propagation analysis service applies linear elastic fracture mechanics to assess nozzle weld defects in pressure vessels. We use API 579-1/ASME FFS-1 methodology to calculate critical crack sizes and remaining fatigue life. The analysis considers cyclic pressure loading, thermal transients, and material fracture toughness. The final report provides recommended inspection intervals and repair criteria.
Common queries about our structural risk auditing and asset integrity certification services.
We use high-frequency sound waves to measure wall thickness and detect internal flaws in storage tanks and pressure vessels without cutting or damaging the material. A phased-array probe scans the surface, and the reflected signals are analyzed to map corrosion, laminations, and thinning. The entire inspection is performed while the equipment remains in service, minimizing downtime.
Our certificates are issued under BIS 2825 for unfired pressure vessels and BIS 8007 for structural steel. Each report includes a corrosion rate analysis, remaining life estimate, and a signed validation that the asset meets the relevant code requirements. We also reference API 579-1/ASME FFS-1 for fitness-for-service assessments when needed.
A standard validation for a high-pressure steam header takes three to five days on site, plus one week for finite element analysis and report preparation. The timeline depends on header size, number of supports, and access conditions. We coordinate with your maintenance schedule to avoid production interruptions.
Yes. We apply linear elastic fracture mechanics to nozzle weld defects in pressure vessels. The analysis calculates critical crack sizes and remaining fatigue life under cyclic pressure and thermal transients. The final report includes recommended inspection intervals and repair criteria based on API 579-1 methodology.
We need the asset type, material grade, dimensions, operating pressure and temperature, and any previous inspection reports. For crack analysis, we also require weld defect sketches or NDE scan data. Contact us by phone or email, and we will send a detailed questionnaire within one business day.