18/10 Stainless Steel: Everything You Need to Know

If you’ve seen “18/10” stamped on cutlery, cookware or a benchtop spec sheet and wondered what it actually means, you’re not alone. It’s one of the most common stainless steel terms and one of the least explained.

What Does “18/10” Actually Mean?

The numbers refer to the alloy’s composition: 18% chromium and 10% nickel, with the balance made up of iron and trace elements.

Chromium is what makes stainless steel “stainless” in the first place. It reacts with oxygen to form a thin, invisible protective layer on the surface that stops rust from taking hold, and if the surface gets scratched, that layer re-forms on its own. Nickel adds a second layer of protection on top of that: it improves resistance to acids and chlorides, keeps the steel tough without becoming brittle, and gives it that bright, mirror-like finish. The more nickel in the mix, the better the steel holds up to hard use over time.

Is 18/10 the Same as Grade 304 Stainless Steel?

Yes, for all practical purposes. 18/10 is the retail name; 304 is the technical, certifiable grade behind it.

Grade 304 is officially specified as 18-20% chromium and 8-10.5% nickel. An 18/10 alloy sits comfortably inside that range, at the higher-nickel end. “18/10” is mostly a marketing term used on cookware, cutlery and appliance packaging because it’s easier for a shopper to understand than an ASTM grade number. In commercial fabrication, including everything we build here, the material gets specified and documented as 304 (or 316 where extra corrosion resistance is needed, such as coastal sites or heavy chemical washdown areas) because that’s the standard our suppliers, certifiers and food safety inspectors actually work to.

How Does 18/10 Compare to 18/8 and 18/0?

The first number is always chromium, the second is nickel, and nickel is the main thing separating the three grades.

18/8 is close enough to 18/10 that most people can’t tell the difference day to day, since both are essentially grade 304 with nickel at either end of the allowed range. 18/0 is a different family altogether (closer to grade 430, a ferritic steel). It’s cheaper and magnetic, which makes it useful for things like induction-compatible cookware bases, but it’s more prone to staining and surface corrosion over time because it doesn’t have nickel’s added protection.

Is 18/10 Stainless Steel Good for Commercial Kitchens?

Yes, it’s the benchmark material for a reason: it copes with the hygiene, hardware and corrosion demands of a working kitchen better than almost anything else.

• Non-porous surface that doesn’t harbour bacteria the way timber or stone benchtops can.
• Corrosion resistance that stands up to acidic food, cleaning chemicals and constant washdown.
• Structural toughness to handle knocks, heavy equipment and daily commercial use without denting or cracking.
• Fully recyclable, which matters for kitchens working toward sustainability commitments.
• Long service life, often decades, which makes it more cost-effective over time than cheaper benchtop materials that need replacing.

This is exactly the reasoning behind our stainless steel benches: we reinforce the sheet with a wood substrate for noise reduction and rigidity, but the working surface itself is food-grade stainless steel built to the 304/18-10 standard.

Does 18/10 Stainless Steel Rust?

Not under normal conditions, but “corrosion resistant” isn’t the same as “indestructible.”

Under everyday kitchen use, 18/10 stainless steel won’t rust. Where problems do show up, it’s usually one of three causes: prolonged exposure to salt or harsh chemicals, a scratched or damaged surface that hasn’t been resealed by the chromium oxide layer yet, or a lower-grade steel being sold under a “stainless” label without the composition to back it up. Regular cleaning with the right products (not steel wool or harsh abrasives) is what keeps a genuine 18/10 surface performing the way it’s meant to for years. If you’re chasing marks or staining on an existing bench, our guides on removing rust from stainless steel and removing scratches cover the practical fixes.

Is 18/10 Stainless Steel Magnetic?

No, not in its normal state, because the nickel content changes the steel’s internal structure.

18/10 is an austenitic stainless steel, and that structure is non-magnetic. It can pick up faint magnetism after heavy bending or cold-working, but that’s not a reliable way to tell grades apart. If you need a magnetic surface (for example, a section a fridge magnet needs to hold to), that’s a separate design consideration and not something 18/10 sheet on its own will give you.

Why We Fabricate With 18/10 (304) Stainless Steel

Because it’s the one material that meets hygiene, durability and finish requirements at the same time, which is exactly what a working commercial kitchen needs.

Every custom stainless steel product we build, from benchtops and sinks to exhaust canopies and range hoods, gets made from food-grade stainless steel to this standard. It’s not the cheapest sheet metal on the market, but it’s the one that holds up to twelve-hour commercial kitchen days, hits food safety requirements, and still looks the way it should after years of use. We’ve been fabricating and installing these across Brisbane and Queensland kitchens for more than 12 years, and every product comes with a 12-month warranty.

Keeping Your 18/10 Stainless Steel Bench Looking Its Best

A little regular care goes a long way: the goal is to protect the surface’s natural chromium oxide layer, not scrub through it.

• Clean in the direction of the grain with a soft cloth and a stainless-safe cleaner.
• Avoid steel wool, bleach and abrasive scourers, they can scratch the surface and open it up to corrosion.
• Wipe up acidic spills (vinegar, citrus, tomato-based sauces) promptly rather than letting them sit.
• Dry the surface after washdown to avoid water spotting.

For step-by-step methods, see our guides on polishing stainless steel and everyday stainless steel cleaning.

Frequently Asked Questions