Our Services

Stainless Steel Welded Pipe, Butt Weld Fittings and Associated Products

Douglas Barwick Inc. is a leader in the manufacturing of stainless steel pipe, pipe fittings and piping accessories. We stand at the forefront of quality with the experience and expertise developed from more than a century in the production and fabrication of metal piping products. Our standards diversity, product and materials range and customer satisfaction allows us a top ranking in our industry.

Our primary pipe and fitting manufacturing plant is located in Brockville, Ontario and produces light wall stainless steel pipe and fittings in accordance with the FPAC (Forest Products Association of Canada, formerly known as CPPA - Canadian Pulp and Paper Association), TAPPI (Technical Association of the Pulp & Paper Institute), NSF (National Sanitation Foundation) and ASTM / ASME specifications. Diameters range from ¾ inch NPS up to 96", with pipe wall thickness ranging from 14 ga (.083") to .500".

Our products include...

  • Stainless Steel & Special Alloy Welded Pipe, A-778, A-409, A-312, A-358
  • Stainless Steel & Special Alloy Butt Weld Fittings, A-774, A-403
  • Flanges, Carbon Steel, Ductile Iron, Stainless Steel, Plate, AWWA, Angle Rings
  • Stainless Steel & Special Alloy Pipe Fabrication And Spooling
  • Alloys include Types 304L, 316L, 317L, Duplex 2205, Alloy 20 & others

Industries served include...

  • Chemical & Petro Chemical
  • Oil & Gas
  • Pulp & Paper
  • Potable Water & Waste Water Treatment
  • Ethanol & Bio Fuels
  • Liquid Natural Gas
  • Wine & Spirit


Our secondary fitting manufacturing plant, Formweld Fitting, is located in Milton Florida, offering quick turns, stainless steel, heavy walls and exotic alloys, catering to chemical and water treatment clientele.

Knowledgeable and experienced production team with over 75 years combined experience, offering in house radiographic inspection, test reports including full traceability of raw materials. They are AIS Compliant manufacturer, member of AWS and certified ISO9001;2015.


Douglas Brothers provides engineered fabrication for multiple products. Their highly experienced team of estimators, pipe fitters, and welders can focus on specific engineered needs from tanks to aerators to piping segments to specialized designs.

Located in Portland Maine they can manage jobs from local to international and from big to small.

Our Mission Statement

Our group is comprised of four businesses that are focused on serving customers in the stainless steel and specialty alloys for piping and fabrication industries. Our mission is to improve your business with the most comprehensive stainless steel piping and fabricating products in the industry.