Northern Iron and Machine

Metallurgy

Casting Process

Northern Iron and Machine Metallurgy Processes And Analysis

In house tensile testing has been a practice at Northern Iron and Machine for many years. This process measures the tensile strength, yield strength and elongation of our iron casting materials. The material specifications define their engineering properties and the testing assures that quality requirements are met. (Not all iron foundries have internal tensile testing machines and they rely on outside sources, which delay the results.)

The following describes Northern Iron and Machines metallurgy processes.

Elemental analysis is performed on an optical emission spectrometer. This device has a short measuring time with exceptional precision and stability. It provides a radiation reading emitted from an arc spark that is collected and shown as a percent concentration. Each element reading emits a different wavelength of radiation (cooler) when transitioned through various energy states. By measuring these wavelengths, the concentration and presence of various elements is determined.