What is the ton (assay) (US) [AT (US)] unit used for?

It is a historical mining/assaying mass unit used for standard sample mass in precious metal content reporting and related contractual calculations.

How many tonnes are in one ton (assay) (US) [AT (US)]?

One ton (assay) (US) [AT (US)] equals 0.0000291667 tonnes.

Why convert from ton (assay) (US) to tonne?

To translate assay-based precious metal mass reports into the widely accepted metric mass unit for standardized resource estimation and commercial reporting.

Convert Ton (assay) (US) [AT (US)] to Tonne [t] - Unit Converter

Easily convert ton (assay) (US) [AT (US)] to tonne [t] using this straightforward online unit converter. Useful for mining, metallurgy, and metric mass unit standardization.

Ton (assay) (US) [AT (US)]

Tonne [t]

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Ton (assay) (US) [AT (US)] to Tonne [t] Conversion Table

Ton (assay) (US) [AT (US)]	Tonne [t]

Custom Unit Conversion Table Generator – Instant Printable Conversion Tables

Start Value

Enter the starting number (positive decimal or integer ≥ 0). Example: 0.1, 1, 5.

End Value

Enter the ending number (positive decimal or integer > Start Value). Example: 10, 50, 100.

Interval

Enter the step size (positive decimal > 0 and < End Value – Start Value). Example: 1.0, 2.5.

Ton (assay) (US) [AT (US)] to Tonne [t] Conversion Table
Ton (assay) (US) [AT (US)]	Tonne [t]

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What Is This Tool?

This converter allows you to transform a mass value from the US assay ton, a historical unit often used in mining and precious metal assay reporting, into the widely recognized metric tonne. It supports translating specialized assay data into standard metric units for easier comparison and reporting.

How to Use This Tool?

Enter the value in ton (assay) (US) [AT (US)] you want to convert
Select the target unit: tonne [t]
Click convert to get the equivalent mass in tonnes
Use the result for standardized reporting or resource estimation

Key Features

Converts ton (assay) (US) [AT (US)] to tonne [t] with a defined fixed factor
Helpful for translating assay-based precious metal reporting into metric units
Supports mining, metallurgy, and industrial applications
Online and easy-to-use interface

Examples

10 ton (assay) (US) [AT (US)] converts to approximately 0.000291667 tonne [t]
100 ton (assay) (US) [AT (US)] converts to roughly 0.00291667 tonne [t]

Common Use Cases

Reporting gold or silver concentration on assay certificates as ounces per assay ton
Calculating contractual payments for ore shipments based on assay ton metal content
Converting historical assay data into modern metric units for resource evaluation
Reporting mass of bulk materials in industry and commerce

Tips & Best Practices

Ensure the assay ton value used is clearly defined due to historical variation
Consider using metric units directly for clearer communication when possible
Use this conversion mainly for specialized or historical assay contexts
Apply the conversion factor carefully for accurate resource comparison

Limitations

Assay ton (US) mass varies historically, so conversion can be ambiguous without exact definition
The very small conversion factor can make values cumbersome for practical use
This unit is mostly used in historical or specialized assay reporting, not general mass measurement

Frequently Asked Questions

What is the ton (assay) (US) [AT (US)] unit used for?: It is a historical mining/assaying mass unit used for standard sample mass in precious metal content reporting and related contractual calculations.
How many tonnes are in one ton (assay) (US) [AT (US)]?: One ton (assay) (US) [AT (US)] equals 0.0000291667 tonnes.
Why convert from ton (assay) (US) to tonne?: To translate assay-based precious metal mass reports into the widely accepted metric mass unit for standardized resource estimation and commercial reporting.

Key Terminology

Ton (assay) (US) [AT (US)]: A historical mining mass unit used as a standard sample mass to report precious metal content.
Tonne [t]: A metric unit of mass equal to exactly 1,000 kilograms, commonly used for large mass measurements.
Conversion Factor: A numerical value that defines how one unit converts to another, here specifically from assay ton to tonne.

Quick Knowledge Check

What type of unit is the US assay ton (AT)?

A modern SI unit

A historical mining mass unit

A unit for measuring liquids

What is the approximate conversion factor from ton (assay) (US) to tonne?

0.0000291667

29.1667

0.29

In which field is the assay ton most commonly used?

Metal assay reporting

General freight shipping

Cooking measurements

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