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Artifact ID BC 2208/918
Class wire/rod
Material copper-base
Site Ban Chiang BC
Period Late Period

Provenience Status/Description Metallography Elemental/Hardness
Alloy: high-tin bronze
Where Cut: Three fragments, one cross section cut, two mounted uncut
How Mounted: Two (A, C) mounted lengthwise.One(B) mounted in cross section
Structure: Hot-worked and quenched.
Metallographic description: The specimen is extensively corroded. Transverse: Alpha with many martensitic needles in a dark matrix. Longitudinal: Very heavily needled. Almost the only matrix, or beta, visible is in a fringe around the alpha. The alpha is longitudinal in most of the sample, but not in some places. In those areas, the alpha outlines the grain boundaries. High-tin bronze.

Photomicrographs

BC 2208/918<br>Total length of all pieces=66 cm. Cross section diameter=0.1 cm. Round or rectangular cross section.
BC 2208/918<br>Total length of all pieces=66 cm. Cross section diameter=0.1 cm. Round or rectangular cross section.
BC 2208/918<br>Total length of all pieces=66 cm. Cross section diameter=0.1 cm. Round or rectangular cross section.

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