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Tubular Assembly

G & J Steel & Tubing Inc. can build custom assemblies to customer requirements. In addition to fabricating the parts in our machine shop, we offer such assembly services as MiG welding, TiG welding, laser welding and brazing. Welding and brazing services are performed in-house. For services requiring furnace processing and laser welding we use highly qualified and certified sub-contract vendors.

Testing services are available for all assembled products including pressure/leak testing, mechanical, tensile, hardness and chemical property testing.

We can also install fastening hardware (tube fittings, flare nuts and sleeves) and custom mounting hardware (brackets and fittings) using many methods including riveting, mechanical locking, gluing or welding. Some example applications include burner assemblies and gas line assemblies.

G & J Steel & Tubing was the developer of a proprietary, patent-pending design for a pilot tube and pilot fitting assembly that was superior to the industry standard in terms of reliability and ease of insertion, and was less costly. The design is still widely used in the Gas & Appliance industry.


Welding Services

Automated Rotary Weld Cell
Brazing - hand held and rotary torch tables

Laser Welding

MiG/TiD Weld


Testing Services

Chemical Properties Testing
Mechanical Properties Testing

Pneumatic Leak Testing

Pressure Testing

Punch Press Services

Groove End Form
Holes Punched

Notch End Form

Assembly Services

Assembly can include any caps, sleeves, heat shrink wrap, etc
Fittings can be assembled using compression fitting, flare-nut fitting, welding or threading

Mechanical locking includes bead locking, swaging of two parts, dimpling and press fit

Machining Services

Chamfer End Form

Holes Drilled

Hose Barb End Form


OD Turning End Form


Workable Materials


Carbon Steel


Cu Ni


Nickel & Ni Alloys


Stainless Steel

Titanium (Press Only)


All miscellaneous machining services available


Automated Rotary Weld Cell
End form machines

Hydraulic Press

MiG/TiG Weld

Pneumatic Press

Industries Served

Aerospace & Aircraft
Air Compressor & Air Conditioning





Gas & Appliance

Heat Exchanger



Utility (Power/Sewer/Water)


·  Bracket - Riveted

·  Bracket - Welded

·  Brackets - Welded

·  Braze - Press Fit Stem

·  Braze with Casting

·  Braze with Fitting

·  Fitting Flare Nut

·  Fitting Flare Nut Assembly

·  Locking Hose Ferrule

·  Pilot Assy with Bracket

·  Pilot Assy with Fitting

·  Press Fit - Cap

·  Press Fit - Pilot Fitting

·  Soldered Fittings

·  Threading with Fitting

·  Welded Coil Assembly

·  Weld Miter Cut

·  Weld with Bracket

·  Weld with Fitting

·  Weld with Fitting - Thread

·  Weld with Fitting Bottom

·  Welded Bend


Automatic Welding

Pilot Tube Assembly

G & J Steel & Tubing, Inc. | Quality • Price • Delivery • Engineering • Production