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Interior of Northern Manufacturing's dedicated stainless-only fabrication area

Stainless Steel Fabricators Who Build What Others Can't

Complex stainless fabrication: plate to passivation, under one roof, with 40,000 square feet dedicated to stainless alone.

  • ISO 9001:2015
  • AWS Corporate Member
  • 160 Employees
  • Founded 1951

40,000 sq ft

stainless-only production space

Separated from carbon steel inside our Oak Harbor, Ohio facility: dedicated tooling, consumables, and welders. No cross-contamination, no free iron on finished surfaces.

55-foot

pickling & passivation booth

Entire assemblies pickled in one pass. No sectioning, no re-welding after finish.

100-foot

longest stainless trough

Critical wastewater replacement delivered inside a scheduled plant outage.

60+

AWS-certified welders

Qualified to AWS D1.6, D1.1, and ASME Section IX. Continuity logs available.

What other shops can't build

Three projects other shops passed on, or tried and couldn't hold spec.

100-foot 304L stainless steel trough for wastewater treatment

Delivered straight within 1/8 inch over 100 feet, tighter than spec. Installed without field rework.

A 100-foot stainless trough, straight within 1/8"

Regional wastewater authority needed a 100-foot 304L stainless trough to replace a failed unit during a planned outage. Straightness was specified within 1/8 inch over the full 100-foot length. The previous fabricator couldn't hold tolerance over the span.

304L Stainless Steel
Stainless steel exhaust ductwork at power generation facility

Sections dropped into position on site without field rework. Factory dry-fit eliminated forced alignment and saved significant installation labor.

When the original spec was unbuildable

Power generation facility needed large-diameter stainless exhaust ductwork to mate to existing in-plant flanges during a scheduled outage, with zero tolerance for forced alignment on site.

304 Stainless Steel
Formed 316L stainless steel equipment housing staged on a pallet in the fabrication bay

Zero NCRs, passed radiographic inspection on first submission. Customer returned with repeat orders.

Catastrophic weld failure, solved by redesign

Food & beverage OEM was seeing stainless weld joints fail in the field within months. Previous fabricator had not adjusted joint geometry for the service environment.

316L Stainless Steel

Have a stainless job others have turned down?

Send us the drawing
Interior of Northern Manufacturing's stainless-dedicated fabrication area

A fabrication room that doesn't see carbon steel

Carbon and stainless share the same shop in almost every fabrication facility. Free iron transfers from grinders, clamps, tables, and weld spatter, and shows up weeks later as rust bloom or pitting on finished stainless surfaces.

  • Dedicated tooling, consumables, and welders, never shared with carbon steel
  • Free-iron verification per ASTM A380 on critical-service assemblies
  • Separate grinders, clamps, and work tables. Zero cross-contamination path.
  • No rust bloom or pitting weeks after the part ships
55-foot pickling and passivation booth at Northern Manufacturing

Plate to passivation, under one roof

Plate to passivation, no subcontracting

Most shops outsource pickling, passivation, NDE, or post-weld finishing. Your part travels, waits in queues, picks up handling damage between stations. We don't. From plate to passivation to inspection, everything happens here, on one schedule, with one accountable name.

Pickling booth
55 ft
PMI + RT + Hydro
In-house
Laser cutting
5-axis
One schedule
One partner
Welder at Northern Manufacturing running a stainless weld pass

Welders who stay qualified on the code your project lives under

AWS D1.6 stainless qualifications aren't optional for critical stainless work, and they aren't static.

  • 60+ welders with active qualifications on AWS D1.6, D1.1, and ASME Section IX
  • Continuous recertification cadence, not one-and-done
  • WPS and PQR packages on file, aligned to your drawing callouts
  • Welder continuity logs available on request before award

Quote turnaround in days, not weeks.

Or call (419) 898-2821

Request a Quote

Industries we serve

Where stainless steel has to perform under real service conditions.

Stainless cylinder for food-grade processing

Featured Industry

Food & Beverage

3-A sanitary design and ASME BPE-compliant fabrication. Mixer housings, sanitary tanks, skid-mounted CIP systems, 316L weld finishes that pass crevice inspection.

Stainless equipment for wastewater treatment

Featured Industry

Water & Wastewater

Municipal and industrial treatment systems. Troughs, weirs, chemical dosing skids, duplex 2205 storage tanks rated for chloride service and seismic loading.

More industries we serve

Stainless components for power generation infrastructure

Power, Energy & Chemical

Exhaust ductwork, reactor internals, process piping, and structural components welded to code-quality procedures. 304, 316, and high-nickel alloys for high-heat and aggressive chemical service.

Precision stainless weld for corrosion-resistant pollution control equipment

Pollution Control

Wet scrubbers, quench vessels, stack liners, demister housings. Corrosion-resistant fabrication built for sustained acid dew-point exposure.

Sunset Spectacular: architectural stainless steel structure fabricated by Northern Manufacturing on Sunset Blvd

Architectural

Mirror-polished facade panels, sculptural features, outdoor installations. Surface-quality and weld finish specified and held to the architect's drawings.

Stainless fabrication for pulp and paper mills

Pulp & Paper

Process tanks, chutes, vacuum box frames, heavy-gauge stainless equipment built to survive abrasive, corrosive mill conditions without line-stop repairs.

Spec is written. Ready to quote?

Send us the drawing

Send us a drawing. We'll tell you what it takes.

Quote turnaround in days, not weeks — and an engineer on the phone when you need one.