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Ubify Media & Design Operations

UI/UX & DIGITAL MEDIA SPECIALISTS

~1 min read
~220 words
VERIFIED NOVEMBER 2026
Verified for Web Accessibility (WCAG 2.1) & Visual Standards

About This Tool

This metallurgy utility provides a comparative three-parameter calculation for mechanical hardness and load factors. Enter primary indentation value 1, test factor 2, and reference divisor 3.

Note on implementation: this interactive component evaluates a proportional index ratio (val1 × val2 / val3), a geometric mean factor sqrt(val1 × val2), and a load distribution ratio percentage (val1 / (val1 + val2) × 100). It serves as a comparative three-variable numerical model rather than an exhaustive empirical ASTM E140 conversion lookup table. All calculations run strictly in your local browser.

How to Use

  1. 1

    Enter the primary hardness or indentation parameter into the Value 1 field.

  2. 2

    Enter the test load or secondary scaling factor into the Value 2 field.

  3. 3

    Set the reference divisor parameter into the Value 3 field.

  4. 4

    Review the calculated proportional index, geometric root factor, and load distribution percentage.

Frequently Asked Questions

Does this tool compute exact ASTM E140 hardness conversion tables?

No. The tool computes a three-parameter proportional ratio index model. For certified metallurgical engineering specifications, consult official ASTM E140 or ISO 18265 conversion tables.

How does the primary index formula work?

The primary index is computed as (Value 1 × Value 2) / max(0.01, Value 3), providing a normalized comparative metric.

Are engineering numbers uploaded to any server?

No. All calculations run locally in client-side JavaScript with zero network requests.

    Metal Hardness Proportional Index Calculator | Ubify Tools