What Is This Tool?
This unit converter transforms pressure measurements from ton-force (long)/square inch, a traditional Imperial pressure unit, into kilogram-force per square millimeter, a gravitational metric unit. It is especially useful for engineers and technicians working with legacy data and modern metric requirements.
How to Use This Tool?
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Enter the pressure value in ton-force (long)/square inch
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Select 'ton-force (long)/square inch' as the original unit
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Choose 'kilogram-force/sq. millimeter' as the target unit
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Click the convert button to get the equivalent value
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Review the converted pressure expressed in kgf/mm²
Key Features
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Converts historical Imperial pressure units into gravitational metric units
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Supports precise unit translation relevant to mechanical and materials engineering
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Browser-based and easy to use without any installation
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Provides quick conversion results with clear input and output fields
Examples
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2 ton-force (long)/square inch converts to approximately 3.1497517168 kilogram-force/sq. millimeter
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0.5 ton-force (long)/square inch equals about 0.7874379292 kilogram-force/sq. millimeter
Common Use Cases
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Updating historical British engineering specs to modern metric units for heavy machinery
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Converting legacy industrial press ratings from Imperial to gravitational metric units
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Comparing old technical documents on bearing and contact pressures with current standards
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Reporting material tensile and yield strengths in gravitational metric units for engineering analyses
Tips & Best Practices
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Ensure you confirm the context of pressure data before converting to avoid misinterpretation
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Use the tool when transitioning legacy specifications into standard engineering documentation
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Double-check converted values especially when integrating with SI-based systems to maintain consistency
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Consult proper documentation when working with non-SI gravitational or legacy pressure units
Limitations
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Both units are non-SI gravitational or legacy units and may not directly align with SI units
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Rounding or translation errors may occur when converting between these units
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Use with caution in technical contexts requiring strict unit conformity
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Legacy units might cause confusion without proper explanation or reference
Frequently Asked Questions
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What does ton-force (long)/square inch measure?
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It measures pressure as the force of one long ton distributed over one square inch; it is a legacy Imperial pressure unit used in older engineering contexts.
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Why convert ton-force (long)/square inch to kilogram-force/sq. millimeter?
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Converting helps translate legacy Imperial pressure data into gravitational metric units commonly used in modern engineering and materials testing.
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Are these units part of the International System of Units (SI)?
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No, both are non-SI gravitational or legacy units, so care is needed when integrating with SI-based measurements.
Key Terminology
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Ton-force (long)/square inch
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A legacy Imperial unit of pressure defined as one long ton-force applied over an area of one square inch.
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Kilogram-force/sq. millimeter
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A gravitational metric unit of pressure representing one kilogram-force distributed over one square millimeter.
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Conversion Factor
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The multiplier used to translate a numerical value from one unit to another; here, 1 ton-force (long)/square inch equals about 1.5748758584 kilogram-force/sq. millimeter.