Steel Quality Rating
An improved efficiency for non-metallic inclusion rating enables steel suppliers and industry manufacturers to verify the steel quality in less time in order to ensure reliable performance and long lifetime. Ever-stricter specifications and standards require rigorous rating of non-metallic inclusions in accordance with international, regional, and organizational standards. For example:
International: ISO 4967, EN 10247, and ASTM E45
Regional: DIN 50602, GB/T 10561, IS 4163, JIS G0555, KSD 0204, and SEP 1571
Organizational: User-defined standards in accordance with organizational norms
Please contact us for personal expert advice on our microscopy solutions for steel quality and rating of non-metallic inclusions.
Rating non-metallic inclusions in steel is crucial
Non-metallic inclusions are foreign substances in steel which disrupt the homogeneity of the microstructure. They can have considerable influence on the steel’s mechanical properties affecting performance and lifetime. Therefore, rating non-metallic inclusions is important for evaluating steel quality.
Challenges for non-metallic inclusion rating
Steel suppliers and industry manufacturers need to achieve high inclusion-rating throughput to save time and ensure compliance with various, regularly changing steel standards. Finding steel non-metallic inclusions can be challenging. Often a large sample area is inspected and detected inclusions of interest are analyzed in greater detail.
Rating inclusions can take too long and different standards require different inclusion classifications – mainly based on inclusion length or area. The length is typically defined as the largest inclusion dimension. However, there are various definitions for inclusion width which are often difficult to apply for optical microscope inspection. Consequently, inclusion area rating by visual comparison to references and manual measurement not only reduces throughput, but also reproducibility of results.
International and regional inclusion rating standards are being updated more frequently and organizational norms and processes can change at any time. The ability for users to adapt quickly to these changes is critical.
The rating of non-metallic inclusions (NMIs) to determine steel quality is critical for many industrial applications. For an efficient and cost-effective steel quality evaluation, an automated NMI rating solution offers clear advantages when compared to manual rating.
Advantages of the Steel Quality Solution Suite
Rate non-metallic inclusions more efficiently and adapt easily to future changes in standards or organizational specifications.
The solution suite allows you to:
- Detect and classify non-metallic inclusions by manual and automated image analysis
- Be easily guided through data acquisition and analysis with the workflow-oriented user interface
- Review rated inclusions faster and easier with a simultaneous sample overview and detailed view of a specific region of interest with the Dual Viewer and inclusion visualization
- Adapt quickly to changes in official inclusion rating standards and organizational norms and processes