Chain | short link | A4 | DIN 766
Do you need a short-link chain that functions safely even in damp, salty, or chemically demanding environments? The short-link chain DIN 766 in A4 / AISI 316 acid-proof stainless steel is built to resist corrosion and maintain strength over a long period. It combines low weight with high breaking strength and is optimized to withstand heavy mechanical stress and frequent use.
AREA OF USE
Perfect for anchor chains, lifting, pulling, and mooring applications in coastal areas, harbors, boats, the chemical industry, and other aggressive environments. The calibrated link shape according to DIN 766 ensures compatibility with windlasses and other mechanical systems. Easy to install and requires minimal maintenance even during continuous operation in harsh environments.
TECHNICAL SPECIFICATIONS
Product type: Short-link chain
Standard: DIN 766 (≥ 4 mm), DIN 5685-3 (< 4 mm)
Quality: A4 / AISI 316
Material grade: Not specified (corresponds to stainless A4)
Thread type: Not applicable
Surface finish: Pickled and electropolished (natural colored stainless steel)
Head shape: Round link, short-link
Grip type: Not applicable
Shape and standard:
Chain with a diameter under 4 mm follows DIN 5685-3, common for lighter applications.
Chain with a diameter of 4 mm and larger follows DIN 766:1986, which is the standard for, for example, windlasses.
Calibration:
Chains with a diameter ≥ 4 mm are calibrated according to DIN 766. This means that the links have precise dimensions and fit into mechanical systems such as windlasses, lifting equipment, and chain conveyors.
For variants or quantities not in stock, this is a special order item that normally takes 1-2 weeks to arrive, provided it is in stock with the supplier. If you order different products, the order will be shipped complete once all items are in our warehouse.
FREQUENTLY ASKED QUESTIONS (FAQ)
What does it mean that the chain is short-linked according to DIN 766?
The DIN 766 standard specifies exact dimensions and tight tolerances for the chain's link length and pitch. The short-link design makes the chain very flexible, reduces the risk of tangling, and ensures that it runs perfectly in chain wheels and windlasses without snagging or jamming.
Why is acid-proof A4 / AISI 316 required in salty and chemically demanding environments?
Acid-proof A4 steel (AISI 316 / 1.4401) contains molybdenum, which provides exceptional protection against pitting and stress corrosion caused by chlorides, salt water, and aggressive chemicals. This makes the chain ideal for marine use such as anchor chains, dock moorings, pump pits, and demanding industrial environments.
How is the load calculated and what should be considered when sizing?
Chain according to DIN 766 has a high breaking strength in relation to its weight, but for safe use, you should always stay within the manufacturer's specified Working Load Limit (WLL). For dynamic applications, such as anchoring or lifting, you should factor in good safety margins to account for jerks and shock loads.