When purchasing marine hardware, the labels can be confusing. One of the most critical terms to understand is marine-grade stainless steel.
In Canada, our coastal waters are notoriously salty and cold. These harsh conditions are brutal on metal components. Choosing the wrong material can lead to rapid corrosion, compromising your boat lift’s safety.
At SeaWise, we exclusively use 316L stainless steel marine grade. Here is why this specific alloy is the ultimate choice for your vessel.
What is Marine Grade Stainless Steel?
All stainless steel contains chromium, which forms an invisible protective shield against rust. This barrier prevents water and oxygen from reaching the iron inside the metal.
However, salt is a highly aggressive corrosive agent. It can penetrate the protective layer of standard steel. When experts define what marine-grade stainless steel is, they are referring to 316 marine-grade stainless steel.
This alloy contains a “secret ingredient” called molybdenum. This addition significantly strengthens the metal’s resistance to saltwater pitting and corrosion.
304 vs 316 Marine Grade Stainless Steel
Many retailers sell 304 stainless steel because it is less expensive. While it looks identical to 316, its performance in the ocean is vastly different.
When comparing 304 or 316 stainless steel marine grade, keep these facts in mind:
- 304 Stainless Steel: Excellent for indoor use or freshwater. However, it quickly develops “tea staining”—unsightly brown rust spots—when exposed to salt spray.
- 316 Stainless Steel: The gold standard for the ocean. The molybdenum allows it to remain shiny and structurally sound even in high-salinity environments.
In the battle of 304 vs 316 marine grade stainless steel, 316 is the only choice for long-term maritime safety.
Why the “L” in 316L Matters
We specifically use 316L, where the “L” stands for Low Carbon. Standard steel can become brittle or susceptible to corrosion at the site of a weld.
By using a low-carbon version, the metal retains its full strength and corrosion resistance after being welded. This makes 316L stainless steel marine grade the toughest option for heavy-duty boat davits.
The SeaWise Advantage
We provide the highest marine stainless steel grades available. Our components undergo an electro-polishing process to create a mirror-like finish.
This ultra-smooth surface ensures that salt and grime have nowhere to hide. Here is why Canadian boaters trust SeaWise:
- Unmatched Safety: A corroded lift is a safety hazard. 316L ensures your dinghy remains secure for years.
- Visual Appeal: Your vessel maintains its premium look with hardware that stays bright and clean.
- Long-Term Value: Investing in 316L means you only buy your davit system once. It outlasts inferior metals by decades.
Using the right 316 stainless steel marine grade is a key part of following marine safety regulations. It protects your boat, your cargo, and your family.
Ready to Upgrade to 316L?
Don’t let rust compromise your boating season. If you want a boat lift designed to withstand the toughest Canadian environments, 316L is the only answer.
Contact us today for a quote on a custom 316L stainless steel davit system!