Stainless steel, sterling silver or brass — which should your range use?
These three cover the great majority of jewelry produced. They differ on every axis that matters — hardness, corrosion behaviour, cost, castability and how they behave against EU nickel law — and plating makes them look identical on the day they arrive.
The three compared
| 316L stainless steel | 925 sterling silver | Brass (C2600) | |
|---|---|---|---|
| Standard | ASTM A276 / EN 1.4404 | ASTM B700 / EN ISO 9202 | ASTM B36 / EN CW508L |
| Composition | Fe bal., Cr 16–18%, Ni 10–14%, Mo 2–3% | Ag 92.5%, Cu 7.5% | Cu 62–70%, Zn 30–38% |
| Density | 7.98 g/cm³ | 10.36 g/cm³ | 8.47 g/cm³ |
| Hardness | 150–190 HV | 60–80 HV | 95–130 HV |
| Corrosion | Excellent — does not tarnish | Tarnishes with airborne sulphur | Tarnishes and patinas |
| Needs plating? | No — sold bare | Optional (rhodium anti-tarnish) | Yes — always |
| Raw cost | $3–6/kg | $900–1,150/kg | $7–10/kg |
| Priced against | Stock list | Daily spot market | Copper-linked |
| Castable | Poorly — melts at 1370–1400 °C | Excellent | Excellent |
| Nickel-safe bare | Yes — passes EN 1811 | Yes | Depends on plating barrier |
Raw cost ranges are indicative market figures, not quotations. Silver tracks the daily spot market, so silver quotations expire.
Durability, which is what customers actually judge
Hardness predicts how a piece survives ordinary wear, and the spread here is wide. 316L at 150–190 HV is roughly twice as hard as 925 silver at 60–80 HV. A silver ring worn daily deforms and scratches; a steel one does not.
Corrosion behaviour matters even more, because it happens without any wear at all. 316L forms a self-repairing chromium oxide film and neither tarnishes nor stains skin. Silver reacts with airborne sulphur and darkens, including on the shelf and in transit. Brass patinas and marks skin green within days unless it is sealed under plating.
The practical consequence is a returns rate. An unplated brass piece and a plated brass piece look identical in a photograph, and only one of them survives a summer.
Cost, and why the ranking inverts
Per kilogram, silver costs roughly two hundred times what stainless steel does. Per piece, the gap is often much smaller than that suggests — and occasionally it inverts.
A 6 g stainless steel ring carries about three cents of metal, so its price is almost entirely labour, coating and tooling. A 1.2 g pair of silver studs carries around $1.20 of metal, which is more than half the unit price. Weight, not price per kilo, is what converts one into the other.
The commercial consequence: on light pieces the metal choice barely moves the price, so choose on durability. On heavy pieces it dominates, so choose on budget. The manufacturing cost breakdown works the arithmetic through in full.
Nickel, where the counter-intuitive part lives
316L contains 10–14% nickel and passes EN 1811. Brass contains none as an alloy and frequently fails it.
The reason is that EU law limits nickel release, not content. In 316L the nickel is bound into an austenitic crystal lattice and does not readily dissolve into sweat. In a plated brass piece the nickel is a discrete barrier layer sitting immediately under the gold, exposed the moment that gold wears through.
Sterling silver at 925 fineness is nickel-free, but the same plating trap applies if it is rhodium-plated over a nickel barrier. Full detail on EN 1811 nickel release compliance.
Which to choose
| If the piece is… | Choose | Why |
|---|---|---|
| Worn daily, gets wet | 316L stainless steel | No plating to wear through, no tarnish, hardest of the three |
| Cast with fine organic detail | 925 silver or brass | 316L cannot be cast finely |
| Sold on metal value | 925 silver | The only one of the three with intrinsic metal value |
| A low price point, plated look | Brass | Cheapest route to a gold appearance; accept the wear life |
| A pierced-ear item for the EU | 316L (or titanium) | Passes EN 1811 without a barrier layer |
| Stone-set | 925 silver | Soft enough to set into; steel is very hard to set |
Questions on this
Each answer stands alone and can be read without the rest of the article.
Which lasts longer, stainless steel or sterling silver jewelry?
Stainless steel, by a wide margin, in ordinary wear. 316L is roughly twice as hard as 925 silver (150–190 HV against 60–80 HV) and does not tarnish, so it neither deforms nor darkens. Silver is chosen for metal value, castability and stone setting rather than for durability, and it needs rhodium plating or regular cleaning to stay bright.
Does brass jewelry turn skin green?
Unplated brass does, within days of skin contact — copper in the alloy oxidises and the oxide transfers to skin. It is not an allergic reaction and it is not harmful, but customers read it as a defect. Any brass piece sold for direct skin contact needs a plated or lacquered seal, and that seal is what eventually wears through.
Why is sterling silver quoted with an expiry date?
Because silver is priced against the daily spot market rather than from a stock list, and metal is more than half the unit price on most silver pieces. A quotation issued today reflects today's spot price; a week later the arithmetic has changed. Steel, brass and zinc are stock-list priced and comparatively stable, so their quotes hold far longer.
Can 316L stainless steel be gold plated?
Yes, and it also takes PVD — which is the better choice on that substrate, because the ceramic coating bonds harder than the steel and lasts years rather than months. Electroplated gold on stainless works and offers a wider colour range, but it wears through at contact points sooner. Specify the thickness in microns either way.
Which of the three is best for a first collection?
316L stainless steel for most new brands. The metal cost is negligible, it needs no protective plating so there is one fewer batch and one fewer failure mode, it passes EU nickel limits without a barrier specification, and its returns rate is the lowest of the three. Add silver or plated brass once the range has proven and the design demands them.
Not answered here? All buyer questions →
Sources
Where the standards and legal limits quoted above are published, so a reader can check them at the issuer rather than taking this article's word.
| Designation | Published by | What it specifies |
|---|---|---|
| REACH Annex XVII entry 27 | European Union | Nickel release limits for articles in prolonged skin contact and for pierced-ear posts |
| EN 1811 | CEN | Reference test method for nickel release from articles in contact with the skin · not freely published; the binding limit is in REACH Annex XVII entry 27 |
| ASTM A276 | ASTM International | Stainless steel bars and shapes — the 316L composition limits |
| ASTM B700 | ASTM International | Electrodeposited coatings of silver — 925 fineness |
| ASTM B36 | ASTM International | Brass plate, sheet, strip and rolled bar — C2600 and neighbours |
Every figure on this page traceable to one of these can be checked against the published standard rather than taken on our word.
Put this into a quotation
Send the design, the material and the quantity. You get an itemised price with the tooling separated out, the plating specified in microns, and the compliance route for your market.
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