Longhai Steel

Tools

Weight calculators and conversions for buyers, inspectors and machine shops working with special steel.

• Round Bar Weight Calculator

  Theoretical weight of a round bar from diameter, length and material density.

• Hex Bar Weight Calculator

  Theoretical weight of a hexagon bar from width across flats, length and density.

• Plate Weight Calculator

  Theoretical weight of a flat plate or sheet from width, length, thickness and density.

• Pipe Weight Calculator

  Theoretical weight of a tube from outside diameter, wall thickness, length and density.

• Dimension Tolerance Table

  ISO 286 shaft tolerances h6 to h13 for round bar and turned diameters.

• Pressure Conversion

  Convert pressure between psi, MPa, bar, kg/cm² and other engineering units.

• Torque Conversion

  Convert torque between N·m, ft·lb, in·lb, kgf·m and joules.

• Length Unit Conversion

  Convert length between millimetres, metres, inches and feet.

• Temperature Conversion

  Convert temperature between Celsius, Fahrenheit and kelvin.

• Brinell Hardness Calculator

  Brinell hardness from indentation diameter, test force and ball diameter.

• Hardness Conversion Calculator

  Approximate conversion among HB, HRC, HRB and HV for unalloyed and low-alloy steel.