Northern Manufacturing is a custom stainless steel fabricator in Oak Harbor, Ohio. 40,000 sq ft dedicated to stainless. ISO 9001:2015. AWS D1.6 and ASME Section IX qualified.https://northernmfg.com/https://northernmfg.com/blog/silica-islands-stainless-steel-welds/https://northernmfg.com/blog/silica-islands-stainless-steel-welds/Silica islands on stainless MIG welds are Mn-Si oxides, confirmed by SEM/EDS and ASTM G48 testing. What the codes say and how to spec them.Wed, 08 Jul 2026 00:00:00 GMThttps://northernmfg.com/blog/hastelloy-c276-vs-c22-vs-al-6xn-choosing-a-corrosion-alloy/https://northernmfg.com/blog/hastelloy-c276-vs-c22-vs-al-6xn-choosing-a-corrosion-alloy/C-276 for reducing acids, C-22 for oxidizing-reducing swings, AL-6XN for high-chloride at lower cost. A spec engineer's alloy decision guide.Tue, 23 Jun 2026 00:00:00 GMThttps://northernmfg.com/blog/pickling-vs-passivation-vs-electropolishing-choosing-a-stainless-finish/https://northernmfg.com/blog/pickling-vs-passivation-vs-electropolishing-choosing-a-stainless-finish/Pickling strips the depleted layer and free iron, passivation restores the chromium oxide (ASTM A967), electropolishing smooths it. How to spec each.Tue, 23 Jun 2026 00:00:00 GMThttps://northernmfg.com/blog/why-stainless-steel-fabrication-costs-more/https://northernmfg.com/blog/why-stainless-steel-fabrication-costs-more/Stainless steel fabrication costs 2-5x more than carbon steel. Material premiums, specialized welding, contamination control, and NDE testing all add cost....Mon, 16 Mar 2026 00:00:00 GMThttps://northernmfg.com/blog/the-risk-of-mtrs-a-guide-to-material-traceability-pmi/https://northernmfg.com/blog/the-risk-of-mtrs-a-guide-to-material-traceability-pmi/Mill Test Reports and Positive Material Identification explained. Why MTR verification and PMI testing matter for stainless steel traceability and code...Tue, 09 Sep 2025 00:00:00 GMThttps://northernmfg.com/blog/beyond-the-blueprint-a-guide-to-achieving-manufacturing-certainty-in-stainless-steel-precision-sheet-metal-fabrication/https://northernmfg.com/blog/beyond-the-blueprint-a-guide-to-achieving-manufacturing-certainty-in-stainless-steel-precision-sheet-metal-fabrication/What separates precise fabrication from manufacturing certainty? How ISO 9001 systems, CWI oversight, and repeatable processes reduce risk on complex...Mon, 01 Sep 2025 00:00:00 GMThttps://northernmfg.com/blog/the-anatomy-of-failure-a-metallurgical-analysis-of-corrosion-in-welded-stainless-steel/https://northernmfg.com/blog/the-anatomy-of-failure-a-metallurgical-analysis-of-corrosion-in-welded-stainless-steel/Intergranular corrosion, knife-line attack, and HAZ failures in welded stainless steel. Metallurgical analysis of common weld corrosion modes.Mon, 01 Sep 2025 00:00:00 GMThttps://northernmfg.com/blog/the-fabricators-guide-to-stainless-steel-finishing-why-blasting-must-be-followed-by-pickling/https://northernmfg.com/blog/the-fabricators-guide-to-stainless-steel-finishing-why-blasting-must-be-followed-by-pickling/Bead blasting removes scale and contaminants. Pickling restores the chromium oxide layer. When to use each, when to combine both, and what to specify for...Mon, 01 Sep 2025 00:00:00 GMThttps://northernmfg.com/blog/a-guide-to-hygienic-surface-finishes-for-stainless-steel/https://northernmfg.com/blog/a-guide-to-hygienic-surface-finishes-for-stainless-steel/Avoid costly rework. Learn how to specify precise, verifiable hygienic surface finishes (Ra, Rz) for sanitary applications in food & beverage. Our experts...Sat, 30 Aug 2025 00:00:00 GMThttps://northernmfg.com/blog/a-guide-to-specifying-consistent-architectural-stainless-steel-finishes/https://northernmfg.com/blog/a-guide-to-specifying-consistent-architectural-stainless-steel-finishes/Avoid costly, mismatched stainless steel finishes. Our guide for architects details a framework for specifying visual consistency using quantitative metrics...Sat, 30 Aug 2025 00:00:00 GMThttps://northernmfg.com/blog/beyond-the-alloy-a-guide-to-preventing-stainless-steel-field-failures/https://northernmfg.com/blog/beyond-the-alloy-a-guide-to-preventing-stainless-steel-field-failures/Iron contamination causes premature corrosion in stainless steel. Learn how cross-contact during fabrication introduces carbon steel particles and what...Sat, 30 Aug 2025 00:00:00 GMThttps://northernmfg.com/blog/duplex-vs-316l-stainless-steel-a-guide-to-strength-corrosion-resistance-and-tco/https://northernmfg.com/blog/duplex-vs-316l-stainless-steel-a-guide-to-strength-corrosion-resistance-and-tco/Duplex 2205 offers 2x the yield strength of 316L with better chloride resistance. Compare fabrication costs, weldability, and total cost of ownership.Sat, 30 Aug 2025 00:00:00 GMThttps://northernmfg.com/blog/evaluating-a-fabricators-material-quality-traceability-program/https://northernmfg.com/blog/evaluating-a-fabricators-material-quality-traceability-program/Not all ISO 9001 certificates are equal. What to look for in a fabricator's quality program: CWI staffing, NDE procedures, material traceability, and...Sat, 30 Aug 2025 00:00:00 GMThttps://northernmfg.com/blog/laser-welding-services-vs-tig-mig-for-stainless-steel/https://northernmfg.com/blog/laser-welding-services-vs-tig-mig-for-stainless-steel/Laser welding controls distortion in stainless steel. AWS-certified welders and ASME IX procedures deliver cleaner welds than TIG or MIG.Sat, 30 Aug 2025 00:00:00 GMThttps://northernmfg.com/blog/precision-edge-finishing-deburring/https://northernmfg.com/blog/precision-edge-finishing-deburring/Move beyond "break all sharp edges." Northern Manufacturing's process-controlled system, featuring our Lissmac finisher, delivers repeatable, spec-ready...Sat, 30 Aug 2025 00:00:00 GMThttps://northernmfg.com/blog/that-316l-weld-wire-you-certified-might-be-308-heres-why-that-matters/https://northernmfg.com/blog/that-316l-weld-wire-you-certified-might-be-308-heres-why-that-matters/During a routine quality check, we performed a Positive Material Identification (PMI) test on a fillet weld for a project specifying Grade 316L stainless...Sat, 30 Aug 2025 00:00:00 GMThttps://northernmfg.com/blog/the-engineers-guide-to-duplex-stainless-steel-fabrication/https://northernmfg.com/blog/the-engineers-guide-to-duplex-stainless-steel-fabrication/Avoid costly failures in Duplex 2205 & 2507 fabrication. Our expert guide covers WPS qualification, phase balance, corrosion testing, and verifying quality...Sat, 30 Aug 2025 00:00:00 GMThttps://northernmfg.com/blog/the-high-cost-of-an-improper-cut/https://northernmfg.com/blog/the-high-cost-of-an-improper-cut/A technical white paper from Northern Manufacturing on the risks of improper stainless steel cutting. Learn how our advanced fiber laser process prevents...Fri, 29 Aug 2025 00:00:00 GMThttps://northernmfg.com/blog/guide-to-procuring-custom-stainless-steel-fabrications/https://northernmfg.com/blog/guide-to-procuring-custom-stainless-steel-fabrications/Unlock the essential guide for procuring custom stainless steel fabrications and enhance your OEM sourcing strategy today.Tue, 19 Aug 2025 00:00:00 GMThttps://northernmfg.com/blog/pickling-passivation/https://northernmfg.com/blog/pickling-passivation/ASTM A380 sets the standard for stainless steel cleaning and passivation. Learn what the spec requires, common failures, and how to verify compliance.Tue, 19 Aug 2025 00:00:00 GMThttps://northernmfg.com/blog/selecting-a-custom-stainless-steel-fabrication-partner/https://northernmfg.com/blog/selecting-a-custom-stainless-steel-fabrication-partner/Learn the importance of selecting a custom stainless steel fabrication partner for your OEM needs to ensure product quality and success.Tue, 19 Aug 2025 00:00:00 GMThttps://northernmfg.com/blog/the-problem-with-unrealistic-title-block-tolerances-in-fabrication/https://northernmfg.com/blog/the-problem-with-unrealistic-title-block-tolerances-in-fabrication/Understand how Unrealistic Tolerances can affect sourcing and production for OEMs in stainless steel fabrication projects.Tue, 19 Aug 2025 00:00:00 GMT