● Material Reference · Desk-Verified Dossier

Hand-Forged Perunggu Bronze

Perunggu

High-tin bell bronze alloy (roughly 77% copper, 23% tin) forged at red heat in Javanese besalen smithies to cast resonant gamelan gongs and keys.

Photograph · Folkroom Archive · CC BY-SA 4.0+ Add licensed photo →
Classification
Material
Origin / Scope
Indonesia
Connected Rooms
1 Tradition
Bibliography
1 Source

Archival note & context

At 23% tin content, cold bronze shatters under a hammer; Javanese gongsmiths (empu) must forge the molten billet within a narrow glowing temperature window before quenching in water and hand-scraping each instrument to its ensemble's unique embat tuning.

Used in traditions

1

Sources

1

What’s on this page is sourced from the citation below.

SourcePublisherLicence
Metallurgy and Acoustics of Central Javanese Gamelan ForgingAsian Music / Society for Ethnomusicology, 2015CC BY-SA 4.0
"Hand-Forged Perunggu Bronze." Folkroom Archive (Materials), https://folkroom.org/materials/tin-copper-perunggu-bronze · CC BY-SA 4.0.
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