1-5/8ft OD 304/304L Stainless Steel Tubing, 16 Gauge (.065) - 4 ft

Our review of this 1-5/8' OD 304/304L stainless steel tubing finds it best for builders and fabricators who need a durable, corrosion-resistant length of welded tube ready for finishing or assembly. The single biggest reason to buy is the combination of dual 304/304L certification and a mill ID with bright annealed OD, which means reliable corrosion performance plus an attractive exterior that reduces prep time. The 4 ft length and 16 gauge wall make it a practical off-the-shelf option for automotive exhaust work, light structural runs, and food-industry service where traceability and weld quality matter.

Key Features

• Material certification: Dual 304/304L and A249/A269 certification provides confidence in chemical and mechanical consistency for critical applications.
• Weld quality: Laser welded with a high-energy beam for a narrow, deep weld that improves corrosion resistance and uniformity along the 4 ft length.
• Finish: Mill finished ID and bright annealed OD reduce cleaning and polishing time while offering a corrosion-resistant exterior surface.
• Wall thickness: The 16 gauge (0.065') wall gives a balance of stiffness and weight suitable for exhaust systems and general service tubing.
• Quality inspection: Subjected to a nine point mill inspection including eddy current, ultrasonic and hydro tests to ensure soundness before shipment.

Who It's For

This tubing is aimed at professional fabricators, automotive exhaust builders, and food or beverage equipment shops that require traceable stainless materials with good weld characteristics. The combination of A269/A249 and 304/304L designations suits shops that must meet both mechanical and sanitary expectations.

Those who need seamless tubing, custom lengths beyond 4 ft without welds, or thinner gauge material for lightweight structural applications should consider alternate products. This welded 16 gauge tube is not intended as a drop-in replacement where seamless metallurgy is explicitly required.

Pros & Cons

Pros

• Dual certification gives clear metallurgical traceability for regulated or safety-conscious projects.
• Laser welding produces a narrower, deeper weld that enhances corrosion resistance over conventional welding.
• Bright annealed OD presents a clean surface that reduces finishing labor for visible runs.

Cons

• The welded construction means it is not a seamless tube, which some precision applications may prefer.

Specifications

Our Verdict

This 1-5/8' OD 304/304L welded tubing is a solid choice for fabricators who value certification and a ready-to-use finish. It delivers reliable corrosion resistance, strong weld integrity and a clean OD that shortens post-processing. For projects that accept welded tubing, it represents good value due to its inspection pedigree and practical 4 ft length.

Frequently Asked Questions

Is this tube seamless?
No, this product is laser welded rather than seamless, which improves weld penetration but differs from seamless metallurgy.

Can it be used for automotive exhaust?
Yes, the 304L chemistry and 16 gauge wall make it suitable for exhaust systems and general service.

What finish do the ID and OD have?
The inner diameter is mill finished and the outer diameter is bright annealed for a cleaner external appearance.