What Is This Tool?
This converter facilitates the transformation of weight values from the US assay ton, a historical unit for precious-metal sample mass, into grains, a traditional small mass unit used in ballistics and pharmaceuticals. It aids in translating mining assay measurements into a finer, standardized scale.
How to Use This Tool?
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Enter the value in Ton (assay) (US) you wish to convert
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Select Ton (assay) (US) as the input unit
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Choose Grain (gr) as the output unit
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View the converted result displayed instantly
Key Features
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Converts values from Ton (assay) (US) to Grain (gr) seamlessly
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Supports analysis and reporting of precious metal concentrations
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Useful for historical data interpretation and resource assessment
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Browser-based and easy-to-use interface
Examples
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2 Ton (assay) (US) equals 900.2210068016 Grain (gr)
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0.5 Ton (assay) (US) converts to 225.0552517004 Grain (gr)
Common Use Cases
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Reporting precious metal concentrations on assay certificates
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Performing payment calculations for ore shipments based on metal content
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Converting historical assay results for resource analysis and comparison
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Comparing small mass measurements in ballistics and archery contexts
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Interpreting legacy pharmaceutical dosages involving grains
Tips & Best Practices
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Always verify the specific assay ton definition used to avoid inaccuracies
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Use this conversion mainly for precise or legacy mass measurements rather than bulk quantities
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Consider metric units like grams per tonne for modern metallurgical reporting
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Double-check values when converting historical data to ensure consistency
Limitations
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Historical variations of the assay ton can lead to conversion differences
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Grain units may not be practical for large or bulk measurements
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Modern practices often favor metric units over traditional ones for clarity
Frequently Asked Questions
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What is the US assay ton used for?
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It is a historical mining mass unit used for defining sample masses on precious-metal assay certificates and for ore shipment payment calculations.
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Why convert from Ton (assay) (US) to Grain?
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To translate historical or assay-specific mass values into a smaller, standardized unit suitable for detailed analysis and comparison.
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Are grains suitable for bulk mass measurements?
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No, grains are very small units mainly used for precise or legacy calculations, and not practical for large mass measurements.
Key Terminology
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Ton (assay) (US) [AT (US)]
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A historical mass unit used in mining and assaying for precious metal sample weights, with varying exact definitions.
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Grain [gr]
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A traditional small mass unit equal to exactly 64.79891 milligrams, used in ballistics, archery, and historical pharmaceuticals.
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Conversion Rate
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The factor representing how many grains equal one US assay ton; specifically 1 Ton (assay) (US) equals 450.1105034008 grains.