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When a single-strand chain isn't enough for your load requirements, engineers and machinery builders turn to duplex (double strand) roller chains. Whether you're maintaining industrial conveyors, agricultural equipment, or custom power transmission systems, a worn or undersized chain leads to costly downtime. These 304 stainless steel duplex roller chains are engineered for applications where both strength and corrosion resistance are non-negotiable.
Each chain is manufactured from 304 stainless steel, offering excellent resistance to rust, oxidation, and mild chemical exposure. Available in sizes 06B-2 through 24A-2, each length is 1.524M (approximately 60 inches / 5 feet). The duplex (double strand) configuration doubles the load capacity compared to a single-strand equivalent, making these chains suitable for heavy-duty drive and conveyor applications.
Typical use cases include food processing conveyor lines where washdown resistance is required, marine and outdoor machinery exposed to moisture and salt air, and industrial power transmission systems such as packaging equipment, agricultural machinery drives, and custom fabrication projects requiring a stainless steel duplex roller chain 1.524M length.
| Material | 304 Stainless Steel |
|---|---|
| Chain Type | Duplex (Double Strand) Roller Chain |
| Available Sizes | 06B-2, 08B-2, 10A-2, 12A-2, 16A-2, 20A-2, 24A-2, 08A-2 |
| Length per Section | 1.524M (approx. 60 in / 5 ft) |
| Pitch (B-series) | 06B: 9.525mm | 08B: 12.7mm (ISO/BS standard) |
| Pitch (A-series) | 08A: 12.7mm | 10A: 15.875mm | 12A: 19.05mm | 16A: 25.4mm | 20A: 31.75mm | 24A: 38.1mm (ANSI standard) |
| Strand Count | 2 (Duplex) |
| Finish | Natural Stainless (uncoated) |
| Corrosion Resistance | Suitable for moisture, humidity, and mild chemical environments |
| Tensile Strength | See variant options |
| Working Load | See variant options |
| Inner Width | See variant options |
| Roller Diameter | See variant options |
| Compatible Sprockets | Standard duplex sprockets matching selected chain size and pitch series |
Match the chain size to your existing sprocket's pitch and strand count. B-series sizes (06B, 08B) follow ISO/BS pitch standards, while A-series sizes (08A, 10A, 12A, 16A, 20A, 24A) follow ANSI pitch standards. Check your sprocket's specification plate or measure the pitch (center-to-center distance between roller pins) to confirm the correct size before ordering.
B-series chains (e.g., 06B, 08B) conform to ISO/British Standard dimensions and are commonly used in European and international machinery. A-series chains (e.g., 08A, 10A, 12A) conform to ANSI/American Standard dimensions. While some pitches overlap (e.g., 08B and 08A both have 12.7mm pitch), the inner width and roller dimensions differ — they are not interchangeable. Always match the series to your sprocket specification.
304 stainless steel offers slightly lower tensile strength than hardened carbon steel chains of the same size, but provides significantly better corrosion resistance. For most conveyor, food processing, and outdoor applications where rust prevention is critical, 304 stainless steel duplex chains are the preferred choice. If maximum tensile load is the primary concern in a dry indoor environment, carbon steel may be considered instead.
Yes. 304 stainless steel is widely used in food processing, beverage, and pharmaceutical conveyor applications due to its resistance to water, cleaning agents, and mild acids. It meets general food-grade material requirements for incidental contact applications. For direct food contact or highly acidic environments, consult your facility's compliance requirements — 316 stainless steel may be specified in some cases.
Yes. Standard duplex roller chains can be joined using a matching connecting link (also called a master link) of the same size and series. Ensure the connecting link is rated for the same pitch and strand count as your chain. For continuous loop applications, calculate the total number of links required and order accordingly — connecting links are sold separately.
Yes, like all roller chains, regular lubrication extends service life and reduces wear. Use a chain lubricant compatible with stainless steel — avoid lubricants containing chlorinated compounds, which can cause stress corrosion cracking in stainless steel. For food-grade applications, use an NSF H1-rated food-safe lubricant. Lubrication frequency depends on operating speed, load, and environmental conditions.
Duplex stainless steel roller chains are widely used in food and beverage processing, agricultural machinery, marine equipment, chemical handling conveyors, packaging lines, and any industrial drive system where both high load capacity and corrosion resistance are required. The double-strand design is chosen when a single-strand chain of the same pitch would be insufficient for the required working load.
