Positive Material Identification (PMI) Services

At High Technology Nondestructive Testing Service Co., Ltd, we provide Positive Material Identification (PMI)—a critical chemical analysis service that ensures the elemental composition of your metals and alloys matches their technical specifications. In an era where material traceability is paramount, our PMI services act as the final line of defense against catastrophic failures caused by “alloy mix-ups.”

Our Advanced Analytical Technologies

We utilize state-of-the-art portable analyzers to provide laboratory-grade results directly in the field, without damaging the component:

• X-Ray Fluorescence (XRF): Our handheld XRF analyzers provide rapid, non-destructive elemental analysis from Titanium (Ti) to Uranium (U). It is the industry standard for identifying stainless steels, high-alloy steels, and nickel-based alloys in seconds.

• Optical Emission Spectroscopy (OES): For projects requiring the detection of lighter elements—most importantly Carbon (C)—we utilize portable OES. This is essential for determining carbon equivalency, identifying “L-grade” stainless steels, and ensuring weldability.

Why Choose PMI from HTNDT?

• Verification of MTRs: We provide independent verification that the materials delivered to your site match the Mill Test Reports (MTRs) provided by the supplier.

• Safety & Compliance: Essential for high-pressure, high-temperature, or highly corrosive environments (such as Oil & Gas or Chemical processing) where the wrong alloy can lead to rapid corrosion or rupture.

• Instant On-Site Results: Our mobile teams provide immediate “Pass/Fail” data, allowing you to sort materials or approve components without waiting for off-site laboratory results.

Technical Compliance & Quality Assurance

Our PMI procedures are designed to provide the highest level of confidence for quality managers and engineers.

• Standards: Fully compliant with API RP 578 (Material Verification Program for New and Existing Alloy Piping Systems) and ASTM E1476.

• Certified Technicians: Conducted by experts trained in spectroscopic analysis and data interpretation to ensure precision on even the most complex exotic alloys.

• Comprehensive Reporting: We provide digital certificates of analysis for every component tested, including a full elemental breakdown and the identified grade (e.g., SS316L, Inconel 625, P91).