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Artifact ID BT 509/1083
Class wire/rod
Material copper-base
Site Ban Tong
Period Middle Period

Provenience Status/Description Metallography Elemental/Hardness
Alloy: bronze.
Where Cut: not cut; all in sample
How Mounted: lengthwise
Structure: Post-casting treatment
Metallographic description: Fine equiaxed grains, with numerous strain lines and annealing twins. There are many strain cracks into the interior, and the grains are considerably smaller on the outer edges than in the interior, indicating some work on the edge. But the grains are undistorted, so the final work was not extensive. Worked, annealed, worked. This cycle may have been repeated several times.

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