Hardness · Density and weight · Melting point and heat

Materials Lab

Hardness, specific gravity, melting point and thermal conductivity of metals, gems and minerals, wood and plastics. Sourced tables to compare how things behave.

Hardness, density, melting point, heatFigures with sourcesRanges and conditions shownFree, no sign-up

Mohs hardness chart

Compare how materials behave, in one table

Hardness, weight and how well heat flows are useful clues when you choose a material. This site keeps those figures in one place, each with its source, and shows them as tables and figures.

HARDNESS

Hardness

HardnessML-01Mohs hardness chart: the ten reference minerals, and how hard everyday objects, gems and metals areMohs hardness chart in four tables: reference minerals, everyday objects, 21 gems and metals. What 5, 6 and 7 feel like, anything above 10, and Mohs vs Vickers.

DENSITY & WEIGHT

Density and weight

Density and weightML-03Density of metals chart: iron, aluminium, copper, stainless steel, titanium, brass and gold, specific gravity vs density, and how to calculate weightSpecific gravity and density of common metals at a glance, with tables for pure metals, stainless steel, aluminium alloys, brass and titanium, and worked weights.

MELTING POINT & HEAT

Melting point and heat

Melting point and heatML-02Thermal conductivity chart: metals, alloys, building materials, insulation, liquids and gases, and how to read W/(m·K)Thermal conductivity of common substances at a glance, plus tables for pure metals, alloys, building materials, insulation, liquids and gases, with units and conditions.

Melting point and heatML-04Melting points of metals: iron, aluminium, copper, stainless steel and solder, with boiling points, highest and lowest, and the solidus and liquidus of alloysMelting points of common metals at a glance, a table of pure metals with boiling points, rankings, and the solidus to liquidus range of solders and alloys.