651-778-3300 Mon - Fri 7:00am - 3:30pm 867 Forest Street, St. Paul, MN 55106
Gray, ductile, and austempered ductile iron castings up to 250lbs.
ASTM A536, SAE J434, ASTM A48, SAE J431

Northern Iron updates ISO 9001:2015

In April 2023, Northern Iron and Machine renewed its ISO 9001:2015 Certification.
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Northern Iron earns Transportation and Power Generation Certification

Following their successful audit completion, Northern Iron and Machine earned certification from the Performance Review Institute in the Transportation and Power Generation Accreditation Program for casting processes. This certification emphasizes Northern Iron and Machine’s continued commitment to making high-quality castings and finished parts and dedication...
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What is heat treatment?

Iron, in its pure form, is lustrous, silvery, and soft. Its electrons can spin in the same direction to combine with alloying elements effortlessly. Iron is also polymorphic; its crystal structure can transform into different forms by changing the temperature and carbon content. The NIM...
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Which industries do we serve?

The versatility of Northern Iron & Machine is found in virtually every industry. Northern Iron & Machine offers a vast range of capabilities serving many industries. Our mission is to be a single-source supplier that offers the highest level of product completion to help our...
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Foundry terms

Hello and welcome to northernim.com. We thought we’d start off our blog by addressing some common foundry terms. See something we should add to our list? Be sure to contact us with your ideas for our blog. Alloy A metal made by combining two or...
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