Engineering Calculators & Converters

Engineering Tools

Unit converters and calculators for stress, density, temperature, and hardness conversion rules.

Comparison

Compare Alloys →

Side-by-side evaluation of chemistry, mechanical strength, and hardness scales.

Screening

Material Selector →

Filter alloys by yield strength, conductivity, and density thresholds.

Cross-Reference

Equivalent Grades →

Cross-reference UNS, EN/DIN, ISO, and JIS designations.

Engineering Stress & Strength Converter

Convert between Megapascals (MPa / N/mm²) and Kilopounds per square inch (ksi).

Metric / SI (MPa):

US Customary (ksi):72.52 ksi(72519 psi)

Thermal Conductivity Converter

Convert between W/(m•K) and BTU/(hr•ft•°F).

SI: W/(m•K)

US Customary:225.34 BTU/(hr•ft•°F)

Density Converter

Convert g/cm³ (or tonne/m³) to lb/in³.

SI: g/cm³

US Customary:0.3230 lb/in³

Test Temperature Converter

Convert test temperatures between Celsius (°C) and Fahrenheit (°F).

Celsius (°C):

Fahrenheit (°F):68.0 °F

Hardness Conversion Standard Reference & Integrity Guardrail

Mat Grades strictly enforces metallurgical integrity by preventing mathematical or linear conversions between incompatible hardness scales (e.g. Rockwell B vs Rockwell C vs Brinell). Indentation hardness reflects elastic recovery, indenter geometry, and strain hardening.

Test Value:

From Hardness Scale:

To Hardness Scale:

Metallurgical Governance Rule:

Arbitrary linear hardness conversion is prohibited by engineering data governance. Hardness conversions require empirical material-specific correlation tables (ASTM E140 / ISO 18265).

For safe conversions across scales, refer directly to ASTM E140 (Standard Hardness Conversion Tables for Metals) and ISO 18265 empirical tables specific to the alloy family and heat treatment.