Compare mechanical, thermal, electrical, physical and corrosion properties of two common metals or alloys side by side.
| Category | Properties | Why It Matters |
|---|---|---|
| Mechanical | Tensile strength, yield strength, hardness, elastic modulus | Load capacity, deformation, wear and structural design. |
| Thermal | Thermal conductivity, expansion, melting range | Heat transfer, dimensional change and temperature service. |
| Electrical | Electrical conductivity | Electrical contacts, conductors and resistance heating. |
| Physical | Density | Weight, mass and strength-to-weight calculations. |
| Corrosion | Relative corrosion resistance | Material durability in atmospheric, marine and chemical environments. |
| Comparison | Typical Advantage | Main Trade-Off |
|---|---|---|
| 6061-T6 vs 7075-T6 | 7075 for strength; 6061 for welding and corrosion resistance | 7075 is generally more expensive and less weldable. |
| 304 vs 316 | 316 for chloride resistance | 316 generally costs more. |
| Aluminum vs steel | Aluminum for low density; steel for strength and stiffness | Aluminum has lower elastic modulus and often lower absolute strength. |
| Copper vs aluminum | Copper for electrical and thermal conductivity | Copper is substantially denser and generally more expensive. |
| Titanium vs steel | Titanium for strength-to-weight and corrosion resistance | Titanium is much more expensive and can be difficult to machine. |
What properties does this tool compare? It compares reference density, tensile strength class, yield strength class, hardness, elastic modulus, thermal conductivity, thermal expansion, melting range, electrical conductivity and corrosion resistance.
Are the displayed mechanical values exact? No. Mechanical properties vary with alloy, temper, heat treatment, product form and thickness. The tool is intended for comparison and preliminary material research.
Why does the same alloy have different strength values? Heat treatment and temper can substantially change strength, hardness and ductility. For example, aluminum 6061-T6 and annealed 6061 are not mechanically equivalent.
Which material is best for high strength? There is no universal winner. The exact application determines whether tensile strength, yield strength, fatigue strength, toughness or strength-to-weight ratio is most important.
Which material conducts heat best? Copper has very high thermal conductivity, while aluminum also conducts heat substantially better than most steels and stainless steels.
Which material is lightest? Among the materials in this tool, aluminum alloys have much lower density than steel, copper and nickel alloys. Titanium sits between aluminum and steel in density.
Does corrosion resistance depend only on the alloy? No. Environment, chloride concentration, temperature, surface condition, crevices, galvanic contact and manufacturing history can all affect corrosion.
Can I use this tool to select a structural material? It can help compare candidates, but structural design requires verified material properties, design loads, safety factors, applicable codes and the actual product specification.
Are thermal conductivity values constant? No. Thermal conductivity changes with temperature, composition and material condition. The values shown are representative reference values.