What are tolerances in metal?
Related Terms
Flatness Tolerance
Flatness tolerance specifies how much a metal sheet or plate can deviate from a perfectly flat surface. Laser cutting and precision stamping require tight flatness — wavy or bowed stock causes defects.
Cold-Rolled Steel(CR)
Cold-rolled steel is processed further after hot-rolling by passing through rollers at room temperature. It has tighter dimensional tolerances, a smoother surface finish, and higher strength than hot-rolled.
Mill Test Report(MTR)
A mill test report (MTR) is a quality document provided by a metal manufacturer that certifies the chemical composition and mechanical properties of a batch of metal. Required for aerospace, defense, and many industrial applications.
Near-Net Shape(NNS)
A near-net shape is a blank or preform cut or cast very close to its final dimensions, minimizing the amount of machining or material removal needed to finish the part.