Metal Grade Identifier by Chemical Composition

Enter measured elemental percentages to narrow possible metal grades by chemical composition.

Reference Family

Leave elements blank when they are unknown. Blank does not mean zero.

Measured Chemical Composition

Identification Results

Enter composition and click Identify Possible Grades.

How the Matching Works

Each entered element is compared with the reference range for every candidate grade. Inside the reference range: Full match score. Outside the reference range: The score is reduced according to the distance from the reference range. Unknown elements: Ignored. Final score: Average composition compatibility across the elements that can be compared. The highest scores are shown first.
This is a screening calculator, not a certification tool. Confirm important material identification using the applicable specification, mill certificate, PMI/OES/XRF testing and other required tests.

Reference Grades

Frequently Asked Questions

Can chemical composition identify a metal grade? It can narrow the possible grades, but chemistry alone does not always uniquely identify a material.

What does the match percentage mean? It indicates how closely the entered composition fits the stored reference ranges. It is not a probability of identification.

What if I only know three or four elements? The calculator can still rank candidates using those elements. More measured elements generally provide a more useful comparison.

What if an element is blank? Blank fields are treated as unknown and are not penalized.

Can different grades have similar chemistry? Yes. Several specifications can have overlapping composition limits.

Can this identify stainless steel? Yes. Chromium, nickel, molybdenum, carbon, manganese and other elements can help narrow common stainless grades.

Can this identify aluminum alloys? Yes. The built-in database includes several common aluminum grades and uses their principal alloying elements.

Can this identify copper alloys? Yes. Copper, zinc, tin and lead can help distinguish several common copper-alloy grades.

Can this certify the material? No. The result is only a preliminary screening result.