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When standard carbon-steel chain corrodes, seizes, or contaminates the product it drives, engineers and makers reach for stainless steel. Whether you are building a food-adjacent conveyor, a marine-environment drive, a chemical-processing line, or a long-service DIY machine, this simplex roller chain in 304 (A2) stainless steel keeps running where ordinary chain fails. Available in six ANSI/ISO models from the compact #25 (04C-1) up to the heavy-duty #80 (16A-1), it covers the full range of light-to-medium power transmission needs.
Each chain is manufactured to ANSI/ISO simplex (single-strand) standards in 304 stainless steel — equivalent to A2 grade — offering solid corrosion resistance across a wide range of environments. Pitch sizes span 1/4 inch (6.35 mm) for the #25 model through 1 inch (25.4 mm) for the #80 model, with intermediate pitches of 3/8 in (9.525 mm), 1/2 in (12.7 mm), 5/8 in (15.875 mm), and 3/4 in (19.05 mm). Length options of 1 m, 1.5 m, and 5 m let you order exactly what the job requires.
Typical applications include food-processing conveyor drives where hygiene matters, outdoor power-transmission systems exposed to rain and humidity, aquaculture and marine equipment subject to salt-air exposure, and workshop or maker-space machines where long service intervals are a priority. Long-tail search terms this chain addresses: stainless steel #40 roller chain 1/2 inch pitch, ANSI 304 simplex chain corrosion resistant, ISO 08B-1 stainless drive chain cut to length.
| Chain Standard | ANSI / ISO Simplex (Single-Strand) |
|---|---|
| Material | 304 Stainless Steel (A2 equivalent) |
| Available Models | #25 (04C-1), #35 (06B-1), #40 (08B-1), #50 (10A-1), #60 (12A-1), #80 (16A-1) |
| Pitch Range | 6.35 mm (1/4 in) — 25.4 mm (1 in) |
| Available Lengths | 1 Meter / 1.5 Meter / 5 Meter |
| Strand Configuration | Simplex (1 strand) |
| Inner Plate Width | See variant options |
| Pin Diameter | See variant options |
| Roller Diameter | See variant options |
| Minimum Tensile Strength | See variant options |
| Finish | Natural stainless (uncoated) |
| Connecting Link | Contact us to confirm |
Match the model number to your existing sprocket. The model number (e.g., #40) defines the pitch and roller dimensions. If you know the pitch — for example 1/2 inch — that corresponds to #40 (08B-1). Check your sprocket's stamped model number or measure the center-to-center distance between three consecutive pins and divide by two to get the pitch.
304 stainless steel offers good tensile strength for light-to-medium duty power transmission. It is not as strong as hardened carbon steel chain of the same size, so it is best suited for moderate-load applications where corrosion resistance is the priority. For heavy shock-load or high-speed drives, verify the tensile rating against your load requirements or contact us for guidance.
304 stainless steel resists rust and oxidation in most atmospheric, wet, and mildly chemical environments. It performs well in fresh water, rain, and light salt-air exposure. For prolonged immersion in salt water or exposure to chlorides and strong acids, 316 stainless would be a better choice. In typical outdoor or wash-down applications, 304 provides reliable long-term corrosion resistance.
Use standard ANSI/ISO simplex sprockets that match the model number you select. For example, #40 chain requires #40 simplex sprockets. Note that ANSI (American) and BS/ISO (British/metric) sprockets share the same pitch for equivalent model numbers but may differ slightly in roller diameter — confirm the standard your sprocket follows before ordering.
Yes. The chain is supplied as a continuous run in 1 m, 1.5 m, or 5 m lengths. You can cut it to the exact number of links you need using a chain breaker tool. A connecting (master) link is required to join the ends — please contact us to confirm the correct connecting link for your chosen model.
Yes. Like all roller chains, stainless steel simplex chain benefits from periodic lubrication to reduce pin and bushing wear and extend service life. Use a food-grade lubricant if the chain is used near food products, or a standard chain oil for general machinery. In very wet environments, re-lubricate more frequently as water can wash lubricant away.
Measure the required chain run and add 10–15% for tensioner adjustment and any spare links. If your drive needs roughly 1 m or less, the 1 m option is the most economical. For runs between 1 m and 1.5 m, choose the 1.5 m length. The 5 m option offers the best per-meter value for longer conveyors or when you want spare links on hand for future maintenance.
