The Science in the Bible

Entry 23 · Section 3: Make

Bronze: Copper Plus Tin

Founders cast altars, utensils, basins, and Temple vessels from the material the Bible calls bronze.

Scripture: Ex 38:1–8; 1 Kgs 7:45–47

MetallurgyChemistry

Illustrative reconstruction of ancient bronze production from copper and tin materials through furnace, crucible, casting mold, and finished objects. Alloy percentages in later figures are working comparisons, not stated compositions.
Illustrative reconstruction of ancient bronze production from copper and tin materials through furnace, crucible, casting mold, and finished objects. Alloy percentages in later figures are working comparisons, not stated compositions.

The question

How does adding tin change copper's melting behavior, hardness, and suitability for casting?

Why it matters

Bronze is a family of copper alloys, and obtaining tin also implies a trade network beyond local copper sources.

Suggest a correction or new direction
About this preview: This page introduces the scene and question. It intentionally omits the entry's complete calculation, tables, sensitivity cases, and conclusion.